Closing a dialog using the menu bar ("x" or "-" button or windows

menu) must generate a WM_COMMAND+IDCANCEL message, unlike closing normal windows when DestroyWindow() is called.

Closing a dialog using the menu bar ("x" or "-" button or windows
1ffe652c · Rein Klazes · Alexandre Julliard · 3143f67b · 1ffe652c
Commit 1ffe652c authored Oct 15, 1998 by Rein Klazes Committed by Alexandre Julliard Oct 15, 1998
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defdlg.c windows/defdlg.c +2 -2

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--- a/windows/defdlg.c
+++ b/windows/defdlg.c
@@ -223,8 +223,8 @@ static LRESULT DEFDLG_Proc( HWND32 hwnd, UINT32 msg, WPARAM32 wParam,
 	    return dlgInfo->hUserFont;

        case WM_CLOSE:
-            EndDialog32( hwnd, TRUE );
-            DestroyWindow32( hwnd );
+            PostMessage32A( hwnd, WM_COMMAND, IDCANCEL,
+                            (LPARAM)GetDlgItem32( hwnd, IDCANCEL ) );
            return 0;
    }
    return 0;