Button wird nicht erkannt.



  • Hey, ich möchte einen Hack für Pinball schreiben, allerdings haperts schon bei der GUI 😞 Der Button, den ich allerdings deklariert habe, wird nicht erkannt 😮
    Compiler Output:

    C:\Dokumente und Einstellungen\Felix\Eigene Dateien\Sourcecode\C++\Hacks\PinballHack GUI\gui.cpp In function `LRESULT WindowProcedure(HWND__*, UINT, WPARAM, LPARAM)': 
    95 C:\Dokumente und Einstellungen\Felix\Eigene Dateien\Sourcecode\C++\Hacks\PinballHack GUI\gui.cpp `hwndButton1' undeclared (first use this function)
      (Each undeclared identifier is reported only once for each function it appears in.) 
     C:\Dokumente und Einstellungen\Felix\Eigene Dateien\Sourcecode\C++\Hacks\PinballHack GUI\Makefile.win [Build Error]  [gui.o] Error 1
    
    Hier mein Sourcecode:
    
    #include <windows.h>
    
    /*  Declare Windows procedure  */
    LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
    
    /*  Make the class name into a global variable  */
    char szClassName[ ] = "WindowsApp";
    
    int WINAPI WinMain (HINSTANCE hThisInstance,
                        HINSTANCE hPrevInstance,
                        LPSTR lpszArgument,
                        int nFunsterStil)
    
    {
        HWND hwnd;               /* This is the handle for our window */
        HWND hwndEdit1, hwndButton1; //Controls
        MSG messages;            /* Here messages to the application are saved */
        WNDCLASSEX wincl;        /* Data structure for the windowclass */
    
        /* The Window structure */
        wincl.hInstance = hThisInstance;
        wincl.lpszClassName = szClassName;
        wincl.lpfnWndProc = WindowProcedure;      /* This function is called by windows */
        wincl.style = CS_DBLCLKS;                 /* Catch double-clicks */
        wincl.cbSize = sizeof (WNDCLASSEX);
    
        /* Use default icon and mouse-pointer */
        wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
        wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
        wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
        wincl.lpszMenuName = NULL;                 /* No menu */
        wincl.cbClsExtra = 0;                      /* No extra bytes after the window class */
        wincl.cbWndExtra = 0;                      /* structure or the window instance */
        /* Use Windows's default color as the background of the window */
        wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;
    
        /* Register the window class, and if it fails quit the program */
        if (!RegisterClassEx (&wincl))
            return 0;
    
        /* The class is registered, let's create the program*/
        hwnd = CreateWindowEx (
               0,                   /* Extended possibilites for variation */
               szClassName,         /* Classname */
               "Pinball Hack by Xdab4yaX",       /* Title Text */
               WS_OVERLAPPEDWINDOW, /* default window */
               CW_USEDEFAULT,       /* Windows decides the position */
               CW_USEDEFAULT,       /* where the window ends up on the screen */
               300,                 /* The programs width */
               150,                 /* 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 */
               );
          hwndEdit1   = CreateWindow ( "edit", "Hier Text eingeben...",
                                       WS_CHILD | WS_VISIBLE | WS_BORDER,
                                       20, 20, 150, 20, hwnd, (HMENU)2,
                                       (HINSTANCE) GetWindowLong (hwnd, GWL_HINSTANCE), NULL);
          hwndButton1 = CreateWindow(  "button",
                                      "Hack",
                                      WS_CHILD | WS_VISIBLE | WS_BORDER,
                                      20, 60, 150, 20,
                                      hwnd,
                                      NULL,
                                      hThisInstance,
                                      NULL);
        /* Make the window visible on the screen */
        ShowWindow (hwnd, nFunsterStil);
    
        /* 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;
    }
    
    /*  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:
                PostQuitMessage (0);       /* send a WM_QUIT to the message queue */
                break;
            case WM_COMMAND:
                 if((HWND)lParam == hwndButton1) 
                 {
                     if (HIWORD(wParam) == BN_CLICKED)
                     {
                         PostQuitMessage (0);                   
                     }        
                 }
                 break;
            default:                      /* for messages that we don't deal with */
                return DefWindowProc (hwnd, message, wParam, lParam);
        }
        return 0;
    }
    

    Ich weiß, es ist ein bisschen viel, aber vielleicht macht sich ja einer die Mühe das durchzulesen. 🙂

    Lg Xdab4yaX



  • deklariere deine HWND's auserhalb einer funktion, dann klappt das auch.



  • Ouh man!
    Ich hab das mit dem Gültigkeitsbereich ausser acht gelassen. 😣
    Dankeschön 😘


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