how do i start an external program from my program? I tried wineexec and =
its error code returns success but i dont see the program! here is my =
code
#include <windows.h>
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure(HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] =3D "WindowsApp";
HINSTANCE hInstance; // Holds The Instance Of The Application
HWND hWnd; /* This is the handle for our window */
int WINAPI WinMain(HINSTANCE hThisInstance, HINSTANCE hPrevInstance, =
LPSTR lpszArgument, int nFunsterStil)
{
MSG messages; /* Here messages to the application are =
saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
hInstance =3D hThisInstance; // Holds The Instance Of The =
Application
/* The Window structure */
wincl.hInstance =3D hThisInstance;
wincl.lpszClassName =3D szClassName;
wincl.lpfnWndProc =3D WindowProcedure; /* This function is =
called by windows */
wincl.style =3D CS_DBLCLKS; /* Catch double-clicks =
*/
wincl.cbSize =3D sizeof(WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon =3D LoadIcon(NULL, IDI_APPLICATION);
wincl.hIconSm =3D LoadIcon(NULL, IDI_APPLICATION);
wincl.hCursor =3D LoadCursor(NULL, IDC_ARROW);
wincl.lpszMenuName =3D NULL; /* No menu */
wincl.cbClsExtra =3D 0; /* No extra bytes after =
the window class */
wincl.cbWndExtra =3D 0; /* structure or the =
window instance */
/* Use light-gray as the background of the window */
wincl.hbrBackground =3D (HBRUSH) GetStockObject(LTGRAY_BRUSH);
/* Register the window class, if fail quit the program */
if(!RegisterClassEx(&wincl)) return 0;
/* The class is registered, let's create the program*/
hWnd =3D CreateWindowEx(
0, /* Extended possibilites for variation =
*/
szClassName, /* Classname */
"Windows App", /* Title Text */
WS_POPUP, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the =
screen */
800, /* The programs width */
600, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to =
desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow(hWnd, nFunsterStil);
=20
//SystemParametersInfo(SPI_SCREENSAVERRUNNING,true,0,0);
/* Run the message loop. It will run until GetMessage( ) returns 0 =
*/
while(GetMessage(&messages, NULL, 0, 0))
{
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
/* The program return-value is 0 - The value that PostQuitMessage( ) =
gave */
return messages.wParam;
}
void quit()
{
SystemParametersInfo(SPI_SCREENSAVERRUNNING,false,0,0);
if (hWnd && !DestroyWindow(hWnd)) // Are We Able To =
Destroy The Window?
{
MessageBox(NULL,"Could Not Release hWnd.","SHUTDOWN =
ERROR",MB_OK | MB_ICONINFORMATION);
hWnd=3DNULL; // Set hWnd To NULL
}
if (!UnregisterClass("WindowsApp",hInstance)) // Are We =
Able To Unregister Class
{
MessageBox(NULL,"Could Not Unregister Class.","SHUTDOWN =
ERROR",MB_OK | MB_ICONINFORMATION);
hInstance=3DNULL; // Set hInstance To NULL
}
}
/* This function is called by the Windows function DispatchMessage( ) */
LRESULT CALLBACK WindowProcedure(HWND hWnd, UINT message, WPARAM wParam, =
LPARAM lParam)
{
switch (message) /* handle the messages */
{
case WM_DESTROY:
return 0; /* send a WM_QUIT to the message queue */
break;
case WM_KEYDOWN: // Is A Key Being Held Down?
{
if (wParam =3D=3D 13)
{
int blah;
blah =3D =
WinExec("C:\\WINDOWS\\COMMAND\\edit.com",WS_OVERLAPPEDWINDOW);
switch( blah )
{
case 0:
MessageBox(NULL,"out of =
mem","CLOSING",MB_OK|MB_ICONSTOP);
break;
case ERROR_BAD_FORMAT:
MessageBox(NULL,"bad =
format","CLOSING",MB_OK|MB_ICONSTOP);
break;
case ERROR_FILE_NOT_FOUND:
MessageBox(NULL,"file not =
found","CLOSING",MB_OK|MB_ICONSTOP);
break;
case ERROR_PATH_NOT_FOUND:
MessageBox(NULL,"path not =
found","CLOSING",MB_OK|MB_ICONSTOP);
break;
}
if (blah>31)
MessageBox(NULL,"success ","CLOSING",MB_OK|MB_ICONSTOP);
=20
}
if (wParam =3D=3D 57)
{
MessageBox(NULL,"Program Will Now =
Close.","CLOSING",MB_OK|MB_ICONSTOP);
quit();
PostQuitMessage(0);
return 0; // Jump Back
}
}
break;
default: /* for messages that we don't deal =
with */
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
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