Ex. No: 1
Date: 20-01-09 Keyboard events and mouse message
Aim:
To perform keyboard
events and mouse message using Visual C++ programming.
Algorithm:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application, to create a new project named “mouse events”.
Step 2: Include the necessary header files to compute the above
operations.
Step 3: Declare the windows functions in the parameter and declare
the variable globally.
Step 4: Under the main functions in
the parameter and variable that process the Keyboard events and mouse events.
Step 5: Check whether the entire variable are registered, if
registered then.
Step 6: Using Switch case change character and using mouse click and
other mouse functions.
Step 7: After the event destroy the function.
Step 8: Compile and execute the program.
Step 9: close the application.
Program:
#include<windows.h>
#include<string.h>
#include<stdio.h>
#include<winuser.h>
LRESULT CALLBACK windowfunc(HWND,UINT,WPARAM,LPARAM);
char szwinName[]="my win";
char str[100]="MOUSE EVENTS";
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR
lpszargs,int nWinMode)
{
HWND hwnd;
MSG msg;
WNDCLASS wcl;
wcl.hInstance=hInstance;
wcl.lpszClassName=szwinName;
wcl.lpfnWndProc=windowfunc;
wcl.style=CS_HREDRAW
| CS_VREDRAW | CS_DBLCLKS;
wcl.hCursor =
LoadCursor(NULL,IDC_ARROW);
wcl.hIcon=LoadIcon(NULL,IDI_APPLICATION);
wcl.lpszMenuName=NULL;
wcl.cbClsExtra=0;
wcl.cbWndExtra=0;
wcl.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
if(!RegisterClass(&wcl))
return
0;
hwnd=CreateWindow(szwinName,"mouse
events",
WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,
CW_USEDEFAULT,CW_USEDEFAULT,HWND_DESKTOP,
NULL,hInstance,NULL);
ShowWindow(hwnd,nWinMode);
UpdateWindow(hwnd);
while(GetMessage(&msg,0,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return
(msg.wParam);
}
LRESULT CALLBACK windowfunc(HWND hwnd,UINT message,WPARAM
wParam,LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
switch(message)
{
case WM_CHAR:
hdc=GetDC(hwnd);
TextOut(hdc,1,1,"
",2);
sprintf(str,"%c",(char)wParam);
TextOut(hdc,1,1,str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_PAINT:
hdc=BeginPaint(hwnd,&ps);
TextOut(hdc,300,1,str,strlen(str));
EndPaint(hwnd,&ps);
break;
case WM_RBUTTONDOWN:
hdc=GetDC(hwnd);
strcpy(str,"Right
Button is down");
TextOut(hdc,LOWORD(lParam),HIWORD(lParam),str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_LBUTTONDOWN:
hdc=GetDC(hwnd);
strcpy(str,"Left
Button is down");
TextOut(hdc,LOWORD(lParam),HIWORD(lParam),str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_LBUTTONDBLCLK:
hdc=GetDC(hwnd);
strcpy(str,"DOUBLE
CLICK Left Button is down");
TextOut(hdc,LOWORD(lParam),HIWORD(lParam),str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_RBUTTONDBLCLK:
hdc=GetDC(hwnd);
strcpy(str,"DOUBLE
CLICK RIGHT Button is down");
TextOut(hdc,LOWORD(lParam),HIWORD(lParam),str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return
DefWindowProc(hwnd,message,wParam,lParam);
}
return 0;
}
Output:
result:
Thus the VC++
program to perform keyboard events and mouse messages has been complied and
executed successfully.
Ex.No: 2
Date : 10-02-09 DIALOG BASED APPLICATION
Aim:
To write a VC++
program to develop a calculator using Dialog based application.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open the Microsoft visual C++ 6.0
application.
Step 2: Run the AppWizard to
generate a project “DialogBasedAppl”.
Ø Choose New from VC++ File menu and then click project tab in the
resulting new dialog box, Select MFC AppWizard (exe).
Ø Type the project name “DialogBasedAppl” and click the ok button.
Ø Select the “Dialog Based” option in the AppWizard and click finish
to develop project.
Step 3: The Resource editor enabled, now design the
dialog box using the controls as :
Step 4: Use the dialog editor (i.e Rightclick on the
control and select properties) to assign
control IDs to the controls as
|
Control
|
ID
|
|
First operand edit control
|
IDC_FIRST
|
|
Second operand edit control
|
IDC_SECOND
|
|
Result edit control
|
IDC_RESULT
|
|
First Radio button (enable group property option)
|
IDC_OPERATION
|
|
Compute push button
|
IDC_COMPUTE
|
Step 5: Open the properties dialog
box by right click any where inside the resource editor
and choose properties option
Ø Choose style tab enables the options “System Menu” and “Minimize box”.
Step 6: Use class wizard to add member variables for following
controls by following
Steps repeatedly for each controls:
Ø Select the control and right click and choose “class wizard” option
Ø Choose Member variable option and select “Add variable button”,
Enter the member variable name and the type.
|
Control ID
|
Member Variable
|
Type
|
|
IDC_FIRST
|
m_dFirst
|
Double
|
|
IDC_SECOND
|
m_dSecond
|
Double
|
|
IDC_RESULT
|
m_dResult
|
Double
|
|
IDC_OPERATION
|
m_nOperation
|
int
|
Step 7: Add the message handler OnCompute for the IDC_COMPUTE
button:
Ø Right click on compute button and choose class wizard
Ø Choose “message maps” tab and double-click on BN_CLICKED command.
Ø Accept the default OnCompute function and click ok.
Step 8: Double click
on COMPUTE button and add the following coding for OnCompute() function.
void CDialogBasedApplDlg::OnCompute()
{
UpdateData(TRUE);
switch(m_nOperation)
{
//Addition
case 0:
m_dResult=m_dFirst+m_dSecond;
break;
//Subtraction
case 1:
m_dResult=m_dFirst-m_dSecond;
break;
//Multiplication
case 2:
m_dResult=m_dFirst*m_dSecond;
break;
//Division
case 3:
if(m_dSecond!=0.0)
{
m_dResult=m_dFirst/m_dSecond;
}
else
{
AfxMessageBox("Divide
by Zero");
m_dResult=0.0;
}
break;
default:
TRACE("default;,m_nOperation=%d\n",m_nOperation);
}
UpdateData(FALSE);
}
Step 9: Build and test the
DialogBasedAppl.DSW application.
Step 10: Close the application.
OUTPUT:
Addition Operation
Division Operation
RESULT:
The VC++ program
for develop calculator using dialog based application has been successfully
executed and verified.
Ex.No: 3
Date : 17-02-09 MDI APPLICATION
Aim:
To write a VC++
program to develop a MDI document by using MFC AppWizard(exe).
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the AppWizard to create
MDI Application, Select MFC AppWizard (exe), enter the project name as “MDI”
and press ok to create a project.
Step 3: Select “Multiple Documents”
option and deselect the “Document view architecture” and click next.
Step 4: Select “Database support” to none and click
the next button.
Step 5: Accept the default settings and select Finish
button.
Step 6: Now the App wizard will create a new MDI
project and click ok.
Step 7: Now the MDI project will be
created with its specific classes.
Step 8: in the workspace window
select the file view tab.
Step 9: in the Source files open the ChildView.cpp
file.
Step 10: Add the following codes for CChildView::OnPaint()
function.
void CChildView::OnPaint()
{
CPaintDC
dc(this); // device context for painting
dc.TextOut(0,0,"Sample
of MDI");
dc.Rectangle(100,100,200,200);
}
Step 11: Compile and execute the application.
Step 12: Close the application.
OUTPUT:
RESULT:
The VC++ program
for developing MDI application by using MFC AppWizard (exe), has been
successfully executed and verified.
Ex.No:4
Date: 25-02-09 THREAD
Aim:
To create a VC++ project
to implement the threads in our application.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard (exe)
application, type the project name as “Thread “and click ok.
Step 3: Select single document
option, accept all default settings and click finish button.
Step 4: Choose Resource from Visual
C++ Insert menu, and then choose Dialog and select new button.
Step 5: To design
the dialog box as shown below:
Step 6: Change the id of the controls
as:
|
Control
|
ID
|
|
Progress Indicator
|
IDC_PROGRESS1
|
|
OK button
|
IDC_START
|
|
Cancel button
|
IDCANCEL
|
Step 7: Use class wizard to adding
new class as CComputeDlg class.
Step 8: After the class is generated add a “WM_TIMER message
handler function for the “CComputeDlg” class.
Step 9: Add the BN_CLICKED message handler for the
IDC_START and IDCANCEL, by accept the default names “OnStart” and “OnCancel” as
shown below.
Step 10: Add the
three data members to the “CComputeDlg” class from select class view tab.
Class CComputeDlg : public CDialog
{
private:
int
m_nTimer;
int
m_nCount;
enum
{ nMaxCount=10000 } ;
……………..
}
Step 11: Add the following initialization code in
“CComputeDlg” constructor of the ComputeDlg.cpp file.
CComputeDlg::CComputeDlg(CWnd*
pParent ) : CDialog(CComputeDlg::IDD, pParent)
{ m_nCount=0; }
Step 12: Define the OnStart, OnTimer, OnCancel function
in ComputeDlg.cpp file.
void CComputeDlg::OnTimer(UINT
nIDEvent)
{
CProgressCtrl*
pBar=(CProgressCtrl*)GetDlgItem(IDC_PROGRESS1);
pBar->SetPos(m_nCount*100/nMaxCount);
CDialog::OnTimer(nIDEvent);
}
void CComputeDlg::OnStart()
{
MSG
message;
m_nTimer=SetTimer(1,100,NULL);
ASSERT(m_nTimer!=0);
GetDlgItem(IDC_START)->EnableWindow(FALSE);
volatile
int nTemp;
for(m_nCount=0;m_nCount<nMaxCount;
m_nCount++)
{ for(nTemp=0;nTemp<10000;nTemp++)
{ }
if(::PeekMessage(&message,NULL,0,0,PM_REMOVE))
{
::TranslateMessage(&message);
::DispatchMessage(&message);
}
}
CDialog::OnOK();
}
void CComputeDlg::OnCancel()
{
TRACE("Entering
CComputeDlg::OnCancel\n");
if(m_nCount==0)
{ CDialog::OnCancel(); }
else
{ m_nCount=nMaxCount; }
}
Step 13: Edit the OnDraw function in ThreadView.cpp as:
void
CThreadView::OnDraw(CDC* pDC)
{ pDC->TextOut(0,0,"Press the left
mouse button here"); }
Step 14: Then use class wizard to change class as
CThreadView and add the “OnLButtonDown” to handle WM_LBUTTONDOWN messages.
Step 15: Go to ThreadView.cpp file from file view tab,
add the following code for OnLButtonDown() function.
void CThreadView::OnLButtonDown(UINT nFlags, CPoint point)
{
CComputeDlg dlg;
dlg.DoModal();
}
Step 16: In the Thread view.cpp add the following header
file by include the following statement:
#include
"ComputeDlg.h"
Step 17: Build and
Run the application.
Step 18: Close the
application.
OUTPUT:
RESULT:
The VC++ program
for threads has been successfully executed and verified.
Ex. No: 5
Date: 03-03-09 DOCUMENT VIEW ARCHITECTURE
Aim:
To create a VC++
application in document view architecture with serialization.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard(exe) application,
type the project name as “DocumentView” and click ok.
Step 3: Select single document option,
click next.
Step 4: In the step 4 of the MFC
AppWizard dialog deselect the “Printing and Preview” option and click finish.
Step 5: Declare the following string
in DocumentViewDoc.h file as:
public:
CString StrData;
Step 6: Initialize
the data member in DocumnetViewDoc.cpp file as:
CDocumentViewDoc::CDocumentViewDoc()
{
StrData="
";
}
Step 7: Edit the Serialize
() function in DocumentViewDoc.cpp file as:
void CDocumentViewDoc::Serialize(CArchive&
ar)
{
if (ar.IsStoring())
{
ar<<StrData;
}
else
{
ar>>StrData;
}
}
Step 8: Use class wizard to connect the WM_CHAR message
to CDocumentViewView class as shown below.
Step 9: Edit the
OnDraw() and OnChar message handler in DocViewView.cpp file as,
void CDocumentViewView::OnChar(UINT nChar, UINT nRepCnt, UINT
nFlags)
{
CDocumentViewDoc*
pDoc=GetDocument();
ASSERT_VALID(pDoc);
pDoc->StrData+=nChar;
Invalidate();
pDoc->SetModifiedFlag();
CView::OnChar(nChar,
nRepCnt, nFlags);
}
void CDocumentViewView::OnDraw(CDC*
pDC)
{
CDocumentViewDoc*
pDoc = GetDocument();
ASSERT_VALID(pDoc);
pDC->TextOut
(0,0,pDoc->StrData);
}
Step 10: Build the
program and run the application.
Step 11: Close the application.
OUTPUT:
Creation of new document
Saving a document:
RESULT:
The VC++ program
for developing a application using document view architecture with
serialization has been successfully executed and verified.
Ex.No: 6
Date: 10-03-09 DYNAMIC CONTROLS
Aim:
To write a VC++
program to create a simple object COM with the function to display the string
and check the functionality of COM using visual basic.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Choose new from file menu,
Select ATL COM AppWizard and enter the project name as “MY_ATL”.
Step 3: Accept all the default
settings and Click Finish button.
Step 4: Choose “Class view” tab in Workspace
window.
Step 5: Right click on the MY_ATL
classes and choose NEW ATL object option.
Step 6: Then select Simple Object in
the ATL Object wizard and click next.
Step 7: Choose name tab and Fill the
short Name as “TEST_ATL” other fields are filled automatically.
Step 8: In that wizard choose
Attributes tab and enable interface as Custom and aggregation as No option,
like as shown below and click ok.
Step 9: Choose class view from Workspace window double
click the MY_ATL classes.
Ø
Double click the CTEST_ATL and
right click on the ITEST_ATL and choose Add Methods option.
Step 10: Then fill the method name as “add” and
attributes as [in] long a, [in] long b, [in] long *c and click ok.
Step 11: Double
click on the method “add ()” inside the ITEST_ATL class in workspace and write
the following codes.
STDMETHODIMP CTEST_ATL::add(long a, long b, long *c)
{
*c=a+b;
return S_OK;
}
Step 12: Then
save the project and just compile and execute it, now the COM was successfully
created, and close the project.
Step 13: Now open
the Visual Basic 6.0 by choose Start -->Programs –> Microsoft Visual
Studio 6.0 - - > Visual Basic 6.0.
Step 14. Choose standard exe from New Project dialog
box.
Step 15: Then create a new form and design a button and
change the name in caption as “ADD” in property dialog box.
Step 16: Then click Project menu and select Reference
option.
Step 17: Now click the browse button and locate the
MY_ATL.tlb file from the location where the MYATL project is stored.
Step 18: Now enable “MY_ATL 1.0 Type Library” option and
click ok.
Step 19: Double click on Command button “ADD” and write
the following codes.
Private Sub Command1_Click()
Dim a As MY_ATLLib.TEST_ATL
Set a = New TEST_ATL
Dim x As Long
a.Add 20, 50, x
MsgBox ("20+50= " & x)
End Sub
Step 20: Run the
Project by press F5 and click the ADD button to view the result.
Step 21: Close
the application.
OUTPUT:
RESULT:
The VC++ program
for Dynamic Controls has been successfully executed and verified.
Ex.No:7
Date: 17-03-09 CREATION OF MENU, TOOL BAR AND TOOL
TIP
Aim:
To create a Menu,
toolbar and tool tip using MFC AppWizard.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard (exe) application,
type the project name as “ToolbarStatus” and click ok.
Step 3: Select single document option,
click next.
Step 4: in the step 4 of the MFC
AppWizard dialog deselect the “Printing and Preview” option and click finish.
Step 5: In the work space choose
resource tab choose toolbar resources double click on the IDR_MAINFRAME from
menu folder, to create a menu.
Step 6: To create a menu called
“draw”, and create sub menu “Rectangle with the id as ID_DRAW_RECTANGLE”,
Step
7: In the work space choose resource tab choose toolbar resource.
Step 8: Double click on the IDR_MAINFRAME
from Toolbar folder, create a new tool using painting area.
Step 9: Select toolbar Button property
from view menu., select ID as “ID_DRAW_RECTANGLE”.
Step 10: Use the class wizard to change class name as
“CToolBarStatusView” and add the following member functions.
|
Object ID
|
Message
|
Member Function
|
|
ID_DRAW_RECTANGLE
|
COMMAND
|
OnDrawRectangle
|
|
ID_DRAW_RECTANGLE
|
UPDATE_COMMAND_UI
|
OnUpdateDrawRectangle
|
Step 11: Add the two data members to the “CToolBatStatusView”
class by choose from class view tab.
class CToolBarStatusView : public CView
{
private:
CRect m_rect;
BOOL m_bSquare;
……..
……..
}
Step
12: Edit the “ToolBarStatusView.cpp”
file from choose the “file view“ tab
CToolBarStatusView::CToolBarStatusView():
{
m_bSquare=TRUE;
}
void CToolBarStatusView::OnDraw(CDC*
pDC)
{
CBrush brush(HS_BDIAGONAL,5L);
if(m_bSquare)
{
pDC->Rectangle
(m_rect);
}
pDC->SelectStockObject(WHITE_BRUSH);
}
void CToolBarStatusView::OnDrawRectangle()
{
m_rect+=CPoint(25,25);
InvalidateRect(m_rect);
}
void CToolBarStatusView::OnUpdateDrawRectangle(CCmdUI*
pCmdUI)
{
pCmdUI->Enable
(m_bSquare);
}
Step
13: Build and test the application.
Step
14: Close the application.
OUTPUT:
RESULT:
The VC++ program for
creation of menu, tool bar and tool tip application has been successfully
executed and verified.
Ex. No: 8
Date: 17-03-09 CREATION OF DLL
Aim:
To create a Server
DLL with a function to display the string, and that will invoke from the client
DLL.
ALGORITHM:
DLL Server(Mydll.dsw)
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard(dll) application,
type the project name as “Mydll.”and click ok.
Step 3: Select Regular DLL using
Shared MFC DLL and click Finish button.
Step 4: Go to Class view and right
click the Mydll class and choose new class.
Step 5: Now choose the class type to
be the “Generic class” and type the class name as “CMyClass”.
Step 6: Then add
member function to the CMyClass by right clicking the CMyClass and type the
function type as CString and function name as “sayhello(CString strName);” and the
type of access is public.
Step 7: Add the function definition in Myclass.cpp.
CString CMyClass::sayhello(CString
strName)
{
return "Hello"+strName;
}
Step 8: Go to file
view in workspace editor and open the header file named “Myclass.h”.
Step 9: To call the DLL function from an external
application have to modify the “CMyClass” inside the “MyClass.h” header file as
:
class CMyClass
{
public:
_declspec(dllexport)CString
sayhello(CString strName);
_declspec(dllexport)CMyClass();
_declspec(dllexport)
virtual ~CMyClass();
};
Step 10: Compile
the code without execution.
DLL Client (Testdll.dsw).
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard (exe)
application, type the project name as “Testdll”, and click ok.
Step 3: Select dialog based option and click finish
to create a project.
Step 4: In the resource editor
design the dialog box as shown below.
Step 5: To change
the id of edit control as “IDC_NAME .
Step 6: Right click on the edit control and choose class
wizard, to add the member variable “m_edit” with CString type.
Step 7: Right click on the OK button control and choose
class wizard, choose Message maps add member function “OnOk” by select
“BNCLICKED” message.
Step 8: Now add the following code in the “TestDlldlg.cpp”
as by double click the ok button:
void CTestdllDlg::OnOK()
{
UpdateData(TRUE);
CString
str=objMyClass.sayhello(m_edit);
AfxMessageBox(str);
CDialog::OnOK();
}
Step 9: Now add the entire path of the already created
“MyDll’ server path in the “TestdllDlg.h” header file.
E.g. #include "C:\Mydll\MyClass.h"
Step 10: Create an
object for the CMyClass of the MyDll in the TestdllDlg.cpp as
CMyClass objMyClass;
Step 11: Choose
Project -- > Settings from menu and choose link tab , enter the entire path
of the “Mydll.Lib” file of the MyDll
server file in “object/library module”
option as shown below.
Step 12: Now copy the “Mydll.dll” file from server
project “MyDll” and paste inside the TestDll folder.
Step 13: Now build the project and execute it.
Step 14: Close the application.
OUTPUT:
RESULT:
The VC++ program
for creating DLL has been successfully executed and verified.
Ex. No: 9
Date: 07-04-09 DATA BASE ACCESS THROUGH ODBC
Aim:
To create a
Database using MS access and access the database from VC++ application through
ODBC connectivity.
ALGORITHM:
Step 1: Create the Purchase database
in MS access with the fields namely
Ø BookName
Ø EachCost.
Step 2: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open the “Microsoft visual C++ 6.0”
application.
Step 3: Choose new from file menu,
Select MFC AppWizard (exe) and enter the project name as “odbc”.
Step 4: Select single document
option and enable “document view architecture” click next.
Step 5: Select “Database view with
file support” option and select Data Source option.
Step 6: In data options dialog box select
data source as ODBC with MS Access Database and click ok.
Step 7: Select the database from the
directory where we have created the database purchase and click ok select the table
as shown below.
Step 8: Now accept all the default settings and click
finish button.
Step 9: Design the dialog box with Book Name and Book
cost fields.
Step 10: Use class wizard to add member variables for following
controls by following
Steps
repeatedly for each control:
Ø Select the control and right click and choose “class wizard” option
Ø Choose Member variable option and select “Add variable button”,
Enter the member variable name and the type.
|
Control ID
|
Member Variable
|
Type
|
|
IDC_EDIT1
|
m_text1
|
CString
|
|
IDC_EDIT2
|
m_text2
|
CString
|
Step 11: Add the message handler function for the IDC_BUTTON1 as:
Ø Right click on ” CLICK HERE” button and choose class wizard
Ø Choose “message maps” tab and double-click on BN_CLICKED command.
Ø Accept the default OnButton1 function and click ok.
Step 12: Double click the “CLICK HERE” button add the following
coding.
void COdbcView::OnButton1()
{
m_text1=m_pSet->m_BookName ;
UpdateData(false);
m_text2=m_pSet->m_Eachcost ;
UpdateData(false);
}
Step 13: Then build the code and run
the program by selecting the database and view the records in the data base.
Step 14: Close the application.
OUTPUT:
RESULT:
The VC++ program
for Database using MS access has been executed and verified successfully.
Ex. No: 10
Date: 21-04-09 ACTIVE X CONTROL
Aim:
To create VC++
application to install active X control to our application and to perform some
operations.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open Microsoft visual C++ 6.0
application.
Step 2: Run the MFC
AppWizard (EXE) application, type the project name as “ActiveXControls” and
click ok.
Step 3: Select single document option,
click next.
Step 4: In the step 3 of the MFC
AppWizard dialog, to enable “ActiveXControls” option.
Step 5: In the step 4 of the MFC
AppWizard dialog deselect the “Printing and Preview” option and click finish.
Step 6: Now to insert the ActiveX
Controls in to our project, by Choose Project -- >Add to Project -- > Components
and controls.
Step 7: Choose Registered Active X Controls, and then choose Calendar
Control 8.0.
Step 8: Choose Resource from Insert menu, and then choose Dialog and
select new button.
Step 9: To design the dialog box as shown below:
Step 10: Change the id of the newly created dialog as
“IDD_ACTIVEXDIALOG”. Accept the id of OK and Cancel button as IDOK, IDCANCEL.
Step 11: Modify the id of all the controls as like
shown below.
|
Control
|
ID
|
|
Calendar control
|
IDC_CALENDAR1
|
|
Select Date
button
|
IDC_SELECTDATE
|
|
Edit control
|
IDC_DAY
|
|
Edit control
|
IDC_MONTH
|
|
Edit control
|
IDC_YEAR
|
|
Next week button
|
IDC_NEXTWEEK
|
Step 12: Select
View--> class wizard from menu, create a class CActiveXDialog class.
Ø
It shows a “adding a Class”
dialog box select create a new class option and press ok.
Step 13: To create
class by the dialog as shown below.
Step 14: Choose Message Maps tab and add the following
message handler function as shown below.
|
Object ID
|
Message
|
Member Function
|
|
CActiveXDialog
|
WM_INITDIALOG
|
OnInitDialog()
|
|
IDC_CALENDAR1
|
NewMonth(event)
|
OnNewMonthCalendar1
|
|
IDC_SELECTDATE
|
BN_CLICKED
|
OnSelectdate
|
|
IDC_NEXTWEEK
|
BN_CLICKED
|
OnNextWeek
|
|
IDOK
|
BN_CLICKED
|
OnOk()
|
Step 15: Use Class
Wizard, choose Member Variables and add the following member variable as
|
Control ID
|
Type
|
Member
|
|
IDC_CALENDAR!
|
CCalendar
|
m_calendar
|
|
IDC_DAY
|
Short
|
m_sDay
|
|
IDC_MONTH
|
Short
|
m_sMonth
|
|
IDC_YEAR
|
Short
|
m_sYear
|
Step 16: Edit the ActiveXDialog.h file by including the
following member variables as data members.
enum { IDD = IDD_ACTIVEXDIALOG };
CCalendar m_calendar;
short m_sDay;
short m_sMonth;
short m_sYear;
//}}AFX_DATA
COleVariant m_varValue;
unsigned long m_BackColor;
Step 17: Initialize the m_backColor value in
ActiveXDialog.cpp as,
CActiveXDialog::CActiveXDialog(CWnd* pParent /*=NULL*/)
: CDialog(CActiveXDialog::IDD,
pParent)
{
//{{AFX_DATA_INIT(CActiveXDialog)
m_sDay = 0;
m_sMonth = 0;
m_sYear = 0;
//}}AFX_DATA_INIT
m_BackColor=0x8000000F;
}
Step 18: Edit the
message handling functions OnInitDialog(), OnSelectdate(),OnNextweek() ,
OnOK()
BOOL CActiveXDialog::OnInitDialog()
{
CDialog::OnInitDialog();
m_calendar.SetValue
(m_varValue);
return TRUE;
}
void
CActiveXDialog::OnSelectdate()
{
CDataExchange dx(this,TRUE);
DDX_Text(&dx,IDC_DAY,m_sDay);
DDX_Text(&dx,IDC_MONTH,m_sMonth);
DDX_Text(&dx,IDC_YEAR,m_sYear);
m_calendar.SetDay(m_sDay);
m_calendar.SetMonth(m_sMonth);
m_calendar.SetYear(m_sYear);
}
void
CActiveXDialog::OnNextweek()
{
m_calendar.NextWeek();
}
void
CActiveXDialog::OnOK()
{
CDialog::OnOK();
m_varValue=m_calendar.GetValue();
}
Step 19: Add the message handler WM_LBUTTON using class
wizard for the dialog box and add the
following coding as in ActiveXControlsView.cpp file;
void CActiveXControlsView::OnLButtonDown(UINT nFlags, CPoint point)
{
CActiveXDialog dlg;
dlg.m_BackColor=RGB(255,251,240);
COleDateTime today=COleDateTime::GetCurrentTime();
dlg.m_varValue
=COleDateTime(today.GetYear(),today.GetMonth(),today.GetDay(),0,0,0);
if(dlg.DoModal()==IDOK)
{
COleDateTime
date(dlg.m_varValue);
AfxMessageBox(date.Format("%B
%d ,%Y"));
}
Step 20 : Include
the header file “ ActiveXDialog.cpp” in the file “ActivexControlsView.cpp” as
#include "ActiveXDialog.h"
Step 21: Include the following codes for OnDaraw()
function in “ActivexControlsView.cpp” file as
void CActiveXControlsView::OnDraw(CDC* pDC)
{
pDC->TextOut(0,0,"Press
the left mouse button here");
CActiveXControlsDoc*
pDoc = GetDocument();
ASSERT_VALID(pDoc);
}
Step 22: Build the
application and run the project.
Step 23: close the
application.
OUTPUT:
Select Date
operation
Ex. No: 1
Date: 20-01-09 Keyboard events and mouse message
Aim:
To perform keyboard
events and mouse message using Visual C++ programming.
Algorithm:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application, to create a new project named “mouse events”.
Step 2: Include the necessary header files to compute the above
operations.
Step 3: Declare the windows functions in the parameter and declare
the variable globally.
Step 4: Under the main functions in
the parameter and variable that process the Keyboard events and mouse events.
Step 5: Check whether the entire variable are registered, if
registered then.
Step 6: Using Switch case change character and using mouse click and
other mouse functions.
Step 7: After the event destroy the function.
Step 8: Compile and execute the program.
Step 9: close the application.
Program:
#include<windows.h>
#include<string.h>
#include<stdio.h>
#include<winuser.h>
LRESULT CALLBACK windowfunc(HWND,UINT,WPARAM,LPARAM);
char szwinName[]="my win";
char str[100]="MOUSE EVENTS";
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR
lpszargs,int nWinMode)
{
HWND hwnd;
MSG msg;
WNDCLASS wcl;
wcl.hInstance=hInstance;
wcl.lpszClassName=szwinName;
wcl.lpfnWndProc=windowfunc;
wcl.style=CS_HREDRAW
| CS_VREDRAW | CS_DBLCLKS;
wcl.hCursor =
LoadCursor(NULL,IDC_ARROW);
wcl.hIcon=LoadIcon(NULL,IDI_APPLICATION);
wcl.lpszMenuName=NULL;
wcl.cbClsExtra=0;
wcl.cbWndExtra=0;
wcl.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
if(!RegisterClass(&wcl))
return
0;
hwnd=CreateWindow(szwinName,"mouse
events",
WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,
CW_USEDEFAULT,CW_USEDEFAULT,HWND_DESKTOP,
NULL,hInstance,NULL);
ShowWindow(hwnd,nWinMode);
UpdateWindow(hwnd);
while(GetMessage(&msg,0,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return
(msg.wParam);
}
LRESULT CALLBACK windowfunc(HWND hwnd,UINT message,WPARAM
wParam,LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
switch(message)
{
case WM_CHAR:
hdc=GetDC(hwnd);
TextOut(hdc,1,1,"
",2);
sprintf(str,"%c",(char)wParam);
TextOut(hdc,1,1,str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_PAINT:
hdc=BeginPaint(hwnd,&ps);
TextOut(hdc,300,1,str,strlen(str));
EndPaint(hwnd,&ps);
break;
case WM_RBUTTONDOWN:
hdc=GetDC(hwnd);
strcpy(str,"Right
Button is down");
TextOut(hdc,LOWORD(lParam),HIWORD(lParam),str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_LBUTTONDOWN:
hdc=GetDC(hwnd);
strcpy(str,"Left
Button is down");
TextOut(hdc,LOWORD(lParam),HIWORD(lParam),str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_LBUTTONDBLCLK:
hdc=GetDC(hwnd);
strcpy(str,"DOUBLE
CLICK Left Button is down");
TextOut(hdc,LOWORD(lParam),HIWORD(lParam),str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_RBUTTONDBLCLK:
hdc=GetDC(hwnd);
strcpy(str,"DOUBLE
CLICK RIGHT Button is down");
TextOut(hdc,LOWORD(lParam),HIWORD(lParam),str,strlen(str));
ReleaseDC(hwnd,hdc);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return
DefWindowProc(hwnd,message,wParam,lParam);
}
return 0;
}
Output:
result:
Thus the VC++
program to perform keyboard events and mouse messages has been complied and
executed successfully.
Ex.No: 2
Date : 10-02-09 DIALOG BASED APPLICATION
Aim:
To write a VC++
program to develop a calculator using Dialog based application.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open the Microsoft visual C++ 6.0
application.
Step 2: Run the AppWizard to
generate a project “DialogBasedAppl”.
Ø Choose New from VC++ File menu and then click project tab in the
resulting new dialog box, Select MFC AppWizard (exe).
Ø Type the project name “DialogBasedAppl” and click the ok button.
Ø Select the “Dialog Based” option in the AppWizard and click finish
to develop project.
Step 3: The Resource editor enabled, now design the
dialog box using the controls as :
Step 4: Use the dialog editor (i.e Rightclick on the
control and select properties) to assign
control IDs to the controls as
|
Control
|
ID
|
|
First operand edit control
|
IDC_FIRST
|
|
Second operand edit control
|
IDC_SECOND
|
|
Result edit control
|
IDC_RESULT
|
|
First Radio button (enable group property option)
|
IDC_OPERATION
|
|
Compute push button
|
IDC_COMPUTE
|
Step 5: Open the properties dialog
box by right click any where inside the resource editor
and choose properties option
Ø Choose style tab enables the options “System Menu” and “Minimize box”.
Step 6: Use class wizard to add member variables for following
controls by following
Steps repeatedly for each controls:
Ø Select the control and right click and choose “class wizard” option
Ø Choose Member variable option and select “Add variable button”,
Enter the member variable name and the type.
|
Control ID
|
Member Variable
|
Type
|
|
IDC_FIRST
|
m_dFirst
|
Double
|
|
IDC_SECOND
|
m_dSecond
|
Double
|
|
IDC_RESULT
|
m_dResult
|
Double
|
|
IDC_OPERATION
|
m_nOperation
|
int
|
Step 7: Add the message handler OnCompute for the IDC_COMPUTE
button:
Ø Right click on compute button and choose class wizard
Ø Choose “message maps” tab and double-click on BN_CLICKED command.
Ø Accept the default OnCompute function and click ok.
Step 8: Double click
on COMPUTE button and add the following coding for OnCompute() function.
void CDialogBasedApplDlg::OnCompute()
{
UpdateData(TRUE);
switch(m_nOperation)
{
//Addition
case 0:
m_dResult=m_dFirst+m_dSecond;
break;
//Subtraction
case 1:
m_dResult=m_dFirst-m_dSecond;
break;
//Multiplication
case 2:
m_dResult=m_dFirst*m_dSecond;
break;
//Division
case 3:
if(m_dSecond!=0.0)
{
m_dResult=m_dFirst/m_dSecond;
}
else
{
AfxMessageBox("Divide
by Zero");
m_dResult=0.0;
}
break;
default:
TRACE("default;,m_nOperation=%d\n",m_nOperation);
}
UpdateData(FALSE);
}
Step 9: Build and test the
DialogBasedAppl.DSW application.
Step 10: Close the application.
OUTPUT:
Addition Operation
Division Operation
RESULT:
The VC++ program
for develop calculator using dialog based application has been successfully
executed and verified.
Ex.No: 3
Date : 17-02-09 MDI APPLICATION
Aim:
To write a VC++
program to develop a MDI document by using MFC AppWizard(exe).
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the AppWizard to create
MDI Application, Select MFC AppWizard (exe), enter the project name as “MDI”
and press ok to create a project.
Step 3: Select “Multiple Documents”
option and deselect the “Document view architecture” and click next.
Step 4: Select “Database support” to none and click
the next button.
Step 5: Accept the default settings and select Finish
button.
Step 6: Now the App wizard will create a new MDI
project and click ok.
Step 7: Now the MDI project will be
created with its specific classes.
Step 8: in the workspace window
select the file view tab.
Step 9: in the Source files open the ChildView.cpp
file.
Step 10: Add the following codes for CChildView::OnPaint()
function.
void CChildView::OnPaint()
{
CPaintDC
dc(this); // device context for painting
dc.TextOut(0,0,"Sample
of MDI");
dc.Rectangle(100,100,200,200);
}
Step 11: Compile and execute the application.
Step 12: Close the application.
OUTPUT:
RESULT:
The VC++ program
for developing MDI application by using MFC AppWizard (exe), has been
successfully executed and verified.
Ex.No:4
Date: 25-02-09 THREAD
Aim:
To create a VC++ project
to implement the threads in our application.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard (exe)
application, type the project name as “Thread “and click ok.
Step 3: Select single document
option, accept all default settings and click finish button.
Step 4: Choose Resource from Visual
C++ Insert menu, and then choose Dialog and select new button.
Step 5: To design
the dialog box as shown below:
Step 6: Change the id of the controls
as:
|
Control
|
ID
|
|
Progress Indicator
|
IDC_PROGRESS1
|
|
OK button
|
IDC_START
|
|
Cancel button
|
IDCANCEL
|
Step 7: Use class wizard to adding
new class as CComputeDlg class.
Step 8: After the class is generated add a “WM_TIMER message
handler function for the “CComputeDlg” class.
Step 9: Add the BN_CLICKED message handler for the
IDC_START and IDCANCEL, by accept the default names “OnStart” and “OnCancel” as
shown below.
Step 10: Add the
three data members to the “CComputeDlg” class from select class view tab.
Class CComputeDlg : public CDialog
{
private:
int
m_nTimer;
int
m_nCount;
enum
{ nMaxCount=10000 } ;
……………..
}
Step 11: Add the following initialization code in
“CComputeDlg” constructor of the ComputeDlg.cpp file.
CComputeDlg::CComputeDlg(CWnd*
pParent ) : CDialog(CComputeDlg::IDD, pParent)
{ m_nCount=0; }
Step 12: Define the OnStart, OnTimer, OnCancel function
in ComputeDlg.cpp file.
void CComputeDlg::OnTimer(UINT
nIDEvent)
{
CProgressCtrl*
pBar=(CProgressCtrl*)GetDlgItem(IDC_PROGRESS1);
pBar->SetPos(m_nCount*100/nMaxCount);
CDialog::OnTimer(nIDEvent);
}
void CComputeDlg::OnStart()
{
MSG
message;
m_nTimer=SetTimer(1,100,NULL);
ASSERT(m_nTimer!=0);
GetDlgItem(IDC_START)->EnableWindow(FALSE);
volatile
int nTemp;
for(m_nCount=0;m_nCount<nMaxCount;
m_nCount++)
{ for(nTemp=0;nTemp<10000;nTemp++)
{ }
if(::PeekMessage(&message,NULL,0,0,PM_REMOVE))
{
::TranslateMessage(&message);
::DispatchMessage(&message);
}
}
CDialog::OnOK();
}
void CComputeDlg::OnCancel()
{
TRACE("Entering
CComputeDlg::OnCancel\n");
if(m_nCount==0)
{ CDialog::OnCancel(); }
else
{ m_nCount=nMaxCount; }
}
Step 13: Edit the OnDraw function in ThreadView.cpp as:
void
CThreadView::OnDraw(CDC* pDC)
{ pDC->TextOut(0,0,"Press the left
mouse button here"); }
Step 14: Then use class wizard to change class as
CThreadView and add the “OnLButtonDown” to handle WM_LBUTTONDOWN messages.
Step 15: Go to ThreadView.cpp file from file view tab,
add the following code for OnLButtonDown() function.
void CThreadView::OnLButtonDown(UINT nFlags, CPoint point)
{
CComputeDlg dlg;
dlg.DoModal();
}
Step 16: In the Thread view.cpp add the following header
file by include the following statement:
#include
"ComputeDlg.h"
Step 17: Build and
Run the application.
Step 18: Close the
application.
OUTPUT:
RESULT:
The VC++ program
for threads has been successfully executed and verified.
Ex. No: 5
Date: 03-03-09 DOCUMENT VIEW ARCHITECTURE
Aim:
To create a VC++
application in document view architecture with serialization.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard(exe) application,
type the project name as “DocumentView” and click ok.
Step 3: Select single document option,
click next.
Step 4: In the step 4 of the MFC
AppWizard dialog deselect the “Printing and Preview” option and click finish.
Step 5: Declare the following string
in DocumentViewDoc.h file as:
public:
CString StrData;
Step 6: Initialize
the data member in DocumnetViewDoc.cpp file as:
CDocumentViewDoc::CDocumentViewDoc()
{
StrData="
";
}
Step 7: Edit the Serialize
() function in DocumentViewDoc.cpp file as:
void CDocumentViewDoc::Serialize(CArchive&
ar)
{
if (ar.IsStoring())
{
ar<<StrData;
}
else
{
ar>>StrData;
}
}
Step 8: Use class wizard to connect the WM_CHAR message
to CDocumentViewView class as shown below.
Step 9: Edit the
OnDraw() and OnChar message handler in DocViewView.cpp file as,
void CDocumentViewView::OnChar(UINT nChar, UINT nRepCnt, UINT
nFlags)
{
CDocumentViewDoc*
pDoc=GetDocument();
ASSERT_VALID(pDoc);
pDoc->StrData+=nChar;
Invalidate();
pDoc->SetModifiedFlag();
CView::OnChar(nChar,
nRepCnt, nFlags);
}
void CDocumentViewView::OnDraw(CDC*
pDC)
{
CDocumentViewDoc*
pDoc = GetDocument();
ASSERT_VALID(pDoc);
pDC->TextOut
(0,0,pDoc->StrData);
}
Step 10: Build the
program and run the application.
Step 11: Close the application.
OUTPUT:
Creation of new document
Saving a document:
RESULT:
The VC++ program
for developing a application using document view architecture with
serialization has been successfully executed and verified.
Ex.No: 6
Date: 10-03-09 DYNAMIC CONTROLS
Aim:
To write a VC++
program to create a simple object COM with the function to display the string
and check the functionality of COM using visual basic.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Choose new from file menu,
Select ATL COM AppWizard and enter the project name as “MY_ATL”.
Step 3: Accept all the default
settings and Click Finish button.
Step 4: Choose “Class view” tab in Workspace
window.
Step 5: Right click on the MY_ATL
classes and choose NEW ATL object option.
Step 6: Then select Simple Object in
the ATL Object wizard and click next.
Step 7: Choose name tab and Fill the
short Name as “TEST_ATL” other fields are filled automatically.
Step 8: In that wizard choose
Attributes tab and enable interface as Custom and aggregation as No option,
like as shown below and click ok.
Step 9: Choose class view from Workspace window double
click the MY_ATL classes.
Ø
Double click the CTEST_ATL and
right click on the ITEST_ATL and choose Add Methods option.
Step 10: Then fill the method name as “add” and
attributes as [in] long a, [in] long b, [in] long *c and click ok.
Step 11: Double
click on the method “add ()” inside the ITEST_ATL class in workspace and write
the following codes.
STDMETHODIMP CTEST_ATL::add(long a, long b, long *c)
{
*c=a+b;
return S_OK;
}
Step 12: Then
save the project and just compile and execute it, now the COM was successfully
created, and close the project.
Step 13: Now open
the Visual Basic 6.0 by choose Start -->Programs –> Microsoft Visual
Studio 6.0 - - > Visual Basic 6.0.
Step 14. Choose standard exe from New Project dialog
box.
Step 15: Then create a new form and design a button and
change the name in caption as “ADD” in property dialog box.
Step 16: Then click Project menu and select Reference
option.
Step 17: Now click the browse button and locate the
MY_ATL.tlb file from the location where the MYATL project is stored.
Step 18: Now enable “MY_ATL 1.0 Type Library” option and
click ok.
Step 19: Double click on Command button “ADD” and write
the following codes.
Private Sub Command1_Click()
Dim a As MY_ATLLib.TEST_ATL
Set a = New TEST_ATL
Dim x As Long
a.Add 20, 50, x
MsgBox ("20+50= " & x)
End Sub
Step 20: Run the
Project by press F5 and click the ADD button to view the result.
Step 21: Close
the application.
OUTPUT:
RESULT:
The VC++ program
for Dynamic Controls has been successfully executed and verified.
Ex.No:7
Date: 17-03-09 CREATION OF MENU, TOOL BAR AND TOOL
TIP
Aim:
To create a Menu,
toolbar and tool tip using MFC AppWizard.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard (exe) application,
type the project name as “ToolbarStatus” and click ok.
Step 3: Select single document option,
click next.
Step 4: in the step 4 of the MFC
AppWizard dialog deselect the “Printing and Preview” option and click finish.
Step 5: In the work space choose
resource tab choose toolbar resources double click on the IDR_MAINFRAME from
menu folder, to create a menu.
Step 6: To create a menu called
“draw”, and create sub menu “Rectangle with the id as ID_DRAW_RECTANGLE”,
Step
7: In the work space choose resource tab choose toolbar resource.
Step 8: Double click on the IDR_MAINFRAME
from Toolbar folder, create a new tool using painting area.
Step 9: Select toolbar Button property
from view menu., select ID as “ID_DRAW_RECTANGLE”.
Step 10: Use the class wizard to change class name as
“CToolBarStatusView” and add the following member functions.
|
Object ID
|
Message
|
Member Function
|
|
ID_DRAW_RECTANGLE
|
COMMAND
|
OnDrawRectangle
|
|
ID_DRAW_RECTANGLE
|
UPDATE_COMMAND_UI
|
OnUpdateDrawRectangle
|
Step 11: Add the two data members to the “CToolBatStatusView”
class by choose from class view tab.
class CToolBarStatusView : public CView
{
private:
CRect m_rect;
BOOL m_bSquare;
……..
……..
}
Step
12: Edit the “ToolBarStatusView.cpp”
file from choose the “file view“ tab
CToolBarStatusView::CToolBarStatusView():
{
m_bSquare=TRUE;
}
void CToolBarStatusView::OnDraw(CDC*
pDC)
{
CBrush brush(HS_BDIAGONAL,5L);
if(m_bSquare)
{
pDC->Rectangle
(m_rect);
}
pDC->SelectStockObject(WHITE_BRUSH);
}
void CToolBarStatusView::OnDrawRectangle()
{
m_rect+=CPoint(25,25);
InvalidateRect(m_rect);
}
void CToolBarStatusView::OnUpdateDrawRectangle(CCmdUI*
pCmdUI)
{
pCmdUI->Enable
(m_bSquare);
}
Step
13: Build and test the application.
Step
14: Close the application.
OUTPUT:
RESULT:
The VC++ program for
creation of menu, tool bar and tool tip application has been successfully
executed and verified.
Ex. No: 8
Date: 17-03-09 CREATION OF DLL
Aim:
To create a Server
DLL with a function to display the string, and that will invoke from the client
DLL.
ALGORITHM:
DLL Server(Mydll.dsw)
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard(dll) application,
type the project name as “Mydll.”and click ok.
Step 3: Select Regular DLL using
Shared MFC DLL and click Finish button.
Step 4: Go to Class view and right
click the Mydll class and choose new class.
Step 5: Now choose the class type to
be the “Generic class” and type the class name as “CMyClass”.
Step 6: Then add
member function to the CMyClass by right clicking the CMyClass and type the
function type as CString and function name as “sayhello(CString strName);” and the
type of access is public.
Step 7: Add the function definition in Myclass.cpp.
CString CMyClass::sayhello(CString
strName)
{
return "Hello"+strName;
}
Step 8: Go to file
view in workspace editor and open the header file named “Myclass.h”.
Step 9: To call the DLL function from an external
application have to modify the “CMyClass” inside the “MyClass.h” header file as
:
class CMyClass
{
public:
_declspec(dllexport)CString
sayhello(CString strName);
_declspec(dllexport)CMyClass();
_declspec(dllexport)
virtual ~CMyClass();
};
Step 10: Compile
the code without execution.
DLL Client (Testdll.dsw).
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open “Microsoft visual C++ 6.0”
application.
Step 2: Run the MFC AppWizard (exe)
application, type the project name as “Testdll”, and click ok.
Step 3: Select dialog based option and click finish
to create a project.
Step 4: In the resource editor
design the dialog box as shown below.
Step 5: To change
the id of edit control as “IDC_NAME .
Step 6: Right click on the edit control and choose class
wizard, to add the member variable “m_edit” with CString type.
Step 7: Right click on the OK button control and choose
class wizard, choose Message maps add member function “OnOk” by select
“BNCLICKED” message.
Step 8: Now add the following code in the “TestDlldlg.cpp”
as by double click the ok button:
void CTestdllDlg::OnOK()
{
UpdateData(TRUE);
CString
str=objMyClass.sayhello(m_edit);
AfxMessageBox(str);
CDialog::OnOK();
}
Step 9: Now add the entire path of the already created
“MyDll’ server path in the “TestdllDlg.h” header file.
E.g. #include "C:\Mydll\MyClass.h"
Step 10: Create an
object for the CMyClass of the MyDll in the TestdllDlg.cpp as
CMyClass objMyClass;
Step 11: Choose
Project -- > Settings from menu and choose link tab , enter the entire path
of the “Mydll.Lib” file of the MyDll
server file in “object/library module”
option as shown below.
Step 12: Now copy the “Mydll.dll” file from server
project “MyDll” and paste inside the TestDll folder.
Step 13: Now build the project and execute it.
Step 14: Close the application.
OUTPUT:
RESULT:
The VC++ program
for creating DLL has been successfully executed and verified.
Ex. No: 9
Date: 07-04-09 DATA BASE ACCESS THROUGH ODBC
Aim:
To create a
Database using MS access and access the database from VC++ application through
ODBC connectivity.
ALGORITHM:
Step 1: Create the Purchase database
in MS access with the fields namely
Ø BookName
Ø EachCost.
Step 2: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open the “Microsoft visual C++ 6.0”
application.
Step 3: Choose new from file menu,
Select MFC AppWizard (exe) and enter the project name as “odbc”.
Step 4: Select single document
option and enable “document view architecture” click next.
Step 5: Select “Database view with
file support” option and select Data Source option.
Step 6: In data options dialog box select
data source as ODBC with MS Access Database and click ok.
Step 7: Select the database from the
directory where we have created the database purchase and click ok select the table
as shown below.
Step 8: Now accept all the default settings and click
finish button.
Step 9: Design the dialog box with Book Name and Book
cost fields.
Step 10: Use class wizard to add member variables for following
controls by following
Steps
repeatedly for each control:
Ø Select the control and right click and choose “class wizard” option
Ø Choose Member variable option and select “Add variable button”,
Enter the member variable name and the type.
|
Control ID
|
Member Variable
|
Type
|
|
IDC_EDIT1
|
m_text1
|
CString
|
|
IDC_EDIT2
|
m_text2
|
CString
|
Step 11: Add the message handler function for the IDC_BUTTON1 as:
Ø Right click on ” CLICK HERE” button and choose class wizard
Ø Choose “message maps” tab and double-click on BN_CLICKED command.
Ø Accept the default OnButton1 function and click ok.
Step 12: Double click the “CLICK HERE” button add the following
coding.
void COdbcView::OnButton1()
{
m_text1=m_pSet->m_BookName ;
UpdateData(false);
m_text2=m_pSet->m_Eachcost ;
UpdateData(false);
}
Step 13: Then build the code and run
the program by selecting the database and view the records in the data base.
Step 14: Close the application.
OUTPUT:
RESULT:
The VC++ program
for Database using MS access has been executed and verified successfully.
Ex. No: 10
Date: 21-04-09 ACTIVE X CONTROL
Aim:
To create VC++
application to install active X control to our application and to perform some
operations.
ALGORITHM:
Step 1: Select Start -->Programs
–> Microsoft Visual Studio 6.0 and open Microsoft visual C++ 6.0
application.
Step 2: Run the MFC
AppWizard (EXE) application, type the project name as “ActiveXControls” and
click ok.
Step 3: Select single document option,
click next.
Step 4: In the step 3 of the MFC
AppWizard dialog, to enable “ActiveXControls” option.
Step 5: In the step 4 of the MFC
AppWizard dialog deselect the “Printing and Preview” option and click finish.
Step 6: Now to insert the ActiveX
Controls in to our project, by Choose Project -- >Add to Project -- > Components
and controls.
Step 7: Choose Registered Active X Controls, and then choose Calendar
Control 8.0.
Step 8: Choose Resource from Insert menu, and then choose Dialog and
select new button.
Step 9: To design the dialog box as shown below:
Step 10: Change the id of the newly created dialog as
“IDD_ACTIVEXDIALOG”. Accept the id of OK and Cancel button as IDOK, IDCANCEL.
Step 11: Modify the id of all the controls as like
shown below.
|
Control
|
ID
|
|
Calendar control
|
IDC_CALENDAR1
|
|
Select Date
button
|
IDC_SELECTDATE
|
|
Edit control
|
IDC_DAY
|
|
Edit control
|
IDC_MONTH
|
|
Edit control
|
IDC_YEAR
|
|
Next week button
|
IDC_NEXTWEEK
|
Step 12: Select
View--> class wizard from menu, create a class CActiveXDialog class.
Ø
It shows a “adding a Class”
dialog box select create a new class option and press ok.
Step 13: To create
class by the dialog as shown below.
Step 14: Choose Message Maps tab and add the following
message handler function as shown below.
|
Object ID
|
Message
|
Member Function
|
|
CActiveXDialog
|
WM_INITDIALOG
|
OnInitDialog()
|
|
IDC_CALENDAR1
|
NewMonth(event)
|
OnNewMonthCalendar1
|
|
IDC_SELECTDATE
|
BN_CLICKED
|
OnSelectdate
|
|
IDC_NEXTWEEK
|
BN_CLICKED
|
OnNextWeek
|
|
IDOK
|
BN_CLICKED
|
OnOk()
|
Step 15: Use Class
Wizard, choose Member Variables and add the following member variable as
|
Control ID
|
Type
|
Member
|
|
IDC_CALENDAR!
|
CCalendar
|
m_calendar
|
|
IDC_DAY
|
Short
|
m_sDay
|
|
IDC_MONTH
|
Short
|
m_sMonth
|
|
IDC_YEAR
|
Short
|
m_sYear
|
Step 16: Edit the ActiveXDialog.h file by including the
following member variables as data members.
enum { IDD = IDD_ACTIVEXDIALOG };
CCalendar m_calendar;
short m_sDay;
short m_sMonth;
short m_sYear;
//}}AFX_DATA
COleVariant m_varValue;
unsigned long m_BackColor;
Step 17: Initialize the m_backColor value in
ActiveXDialog.cpp as,
CActiveXDialog::CActiveXDialog(CWnd* pParent /*=NULL*/)
: CDialog(CActiveXDialog::IDD,
pParent)
{
//{{AFX_DATA_INIT(CActiveXDialog)
m_sDay = 0;
m_sMonth = 0;
m_sYear = 0;
//}}AFX_DATA_INIT
m_BackColor=0x8000000F;
}
Step 18: Edit the
message handling functions OnInitDialog(), OnSelectdate(),OnNextweek() ,
OnOK()
BOOL CActiveXDialog::OnInitDialog()
{
CDialog::OnInitDialog();
m_calendar.SetValue
(m_varValue);
return TRUE;
}
void
CActiveXDialog::OnSelectdate()
{
CDataExchange dx(this,TRUE);
DDX_Text(&dx,IDC_DAY,m_sDay);
DDX_Text(&dx,IDC_MONTH,m_sMonth);
DDX_Text(&dx,IDC_YEAR,m_sYear);
m_calendar.SetDay(m_sDay);
m_calendar.SetMonth(m_sMonth);
m_calendar.SetYear(m_sYear);
}
void
CActiveXDialog::OnNextweek()
{
m_calendar.NextWeek();
}
void
CActiveXDialog::OnOK()
{
CDialog::OnOK();
m_varValue=m_calendar.GetValue();
}
Step 19: Add the message handler WM_LBUTTON using class
wizard for the dialog box and add the
following coding as in ActiveXControlsView.cpp file;
void CActiveXControlsView::OnLButtonDown(UINT nFlags, CPoint point)
{
CActiveXDialog dlg;
dlg.m_BackColor=RGB(255,251,240);
COleDateTime today=COleDateTime::GetCurrentTime();
dlg.m_varValue
=COleDateTime(today.GetYear(),today.GetMonth(),today.GetDay(),0,0,0);
if(dlg.DoModal()==IDOK)
{
COleDateTime
date(dlg.m_varValue);
AfxMessageBox(date.Format("%B
%d ,%Y"));
}
Step 20 : Include
the header file “ ActiveXDialog.cpp” in the file “ActivexControlsView.cpp” as
#include "ActiveXDialog.h"
Step 21: Include the following codes for OnDaraw()
function in “ActivexControlsView.cpp” file as
void CActiveXControlsView::OnDraw(CDC* pDC)
{
pDC->TextOut(0,0,"Press
the left mouse button here");
CActiveXControlsDoc*
pDoc = GetDocument();
ASSERT_VALID(pDoc);
}
Step 22: Build the
application and run the project.
Step 23: close the
application.
OUTPUT:
Select Date
operation
RESULT:
The VC++ program
for develop application to use active controls has been successfully executed
and verified.
RESULT:
The VC++ program
for develop application to use active controls has been successfully executed
and verified.
No comments:
Post a Comment
PLEASE ENTER THE VALUABLE COMMENTS