[Dev-C++] winexec

[christiaan s. <ck...@ia...>]

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;
}