Win32 message (MSG) processing

In general, the message processing is as follows, TranslateMessage transforms Virtual-keys message to characters message, DispatchMessage dispatches a message to the window program.

// GetMessage The second argument is an HWND, which is set to NULL, // if set to Hwnd,wm_destroy message will not respond to  while (GetMessage (&msg,null,0,0) {     translatemessage (&msg);     Diapatchmessage (&msg);  }

If the window contains a non-modal dialog box, you need to use IsDialogMessage to determine whether the message is for a particular dialog box and handle it.

 while (GetMessage (&msg,null,0,0) {    if(hdlgmodeless==0| | IsDialogMessage (hdlgmodeless,&msg)   {        translatemessage (&msg);        Diapatchmessage (&msg);     }
}

If you are working with shortcut keys, you also need to process the shortcut key messages in advance through TranslateAccelerator.

 while 0 0 ) )    {        if0 | |! IsDialogMessage (hdlgmodeless, &msg))        {            if (! TranslateAccelerator (hwnd, Haccel, &msg))            {                translatemessage (&msg);                DispatchMessage (&msg);     }}}

Win32 message (MSG) processing