Win32API DialogBox Problem

I'm using MSVC++6 Professional to make this project. I'm using the Resource Editor to build the Dialog box (IDD_DIALOG1) with controls and what not.

Everything works just fine except for the fact that when I run my program, and then close it... clicking the X on the system menu doesn't work. Minimize does. Maximize does. I must be missing something. Do I need a different Message loop? I can't find any documentation on specific DialogBox msg loops.

Am I doing it all wrong?

Heres the code:

Code:

---

#include<windows.h>
#include "resource.h"

LRESULT CALLBACK DialogProc(HWND, UINT, WPARAM, LPARAM);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR lpCmdLine, int ShowCmd)
{
        MSG msg;

        DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), NULL, (DLGPROC)DialogProc);

        while(GetMessage(&msg, 0, 0, 0))
        {
                TranslateMessage(&msg);
                DispatchMessage(&msg);
        }

        return msg.wParam;
}

LRESULT CALLBACK DialogProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
        switch(message)
        {
        case WM_INITDIALOG:
                {
                        return TRUE;
                }
        case WM_DESTROY:
                {
                        PostQuitMessage(0);
                        return 0;
                }
        }
        return 0;
}

---

Thanks for the help,
spoon_

Try putting :

Code:

---

case WM_CLOSE:
                  DestroyWindow(hwnd);
                  break;

---

after WM_DESTROY

You have to process the WM_COMMAND message in your Dailog's procedure


BOOL CALLBACK DialogProc (HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case WM_INITDIALOG:
return TRUE;

case WM_COMMAND:
switch(LOWORD(wParam))
{
case IDOK:
case IDCANCEL:
EndDialog(hDlg, 0);
return TRUE;
}
break;
}
return FALSE;
}

www.winprog.org

The DialogBox function creates a modal Dialog box. You should be calling EndDialog to exit that dialog.

Thanks a lot!

So I should use EndDialog instead of DestroyWindow?

Here's what I gather so far...

Code:

---

LRESULT CALLBACK DialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
        switch(message)
        {
        case WM_INITDIALOG:
                {
                        return TRUE;
                }
        case WM_COMMAND:
                {
                        switch(LOWORD(wParam))
                        {
                                /*take care of controls...*/
                        }
                }
        case WM_DESTROY:
                {
                        PostQuitMessage(0);
                        return TRUE;
                }
        case WM_CLOSE:
                {
                        EndDialog(hDlg, 0);
                        return TRUE;
                }
        }
        return FALSE;
}

---

Try something like this..

Code:

---

case WM_CLOSE:
case WM_DESTROY:
    EndDialog( hWnd, TRUE );

---

I'm not sure exactly what you are doing so this may or may not be right for you.