Thread: Exiting program from secondary dialog

Return a value from EndDialog() which specifies that the application should be closed.

Code:

nRet = DialogBox( ... );
if (MY_CLOSE_VALUE == nRet) PostMessage(hwndMain, WM_DESTROY, ...);

OR

Try sending WM_CLOSE or WM_DESTROY to the main window after calling EndDialog().

Code:

EndDialog( ... );
PostMessage(hwndMain, WM_DESTROY, ...);