Win32: My Application freezes while the user resizes the window

Question

I write a win32 application. I implemented the message loop myself like this:

     bool programcontinue = true;
     while(programcontinue)
     {
                   


        

Answer 1

During resize Windows sends quite a few messages to your program. I have not proved this, but the behavior you describe is familiar. I'd suggest to call your function IdleProcess() also within the while(...) loop for certain events such as WM_SIZING which your application will receive frequently during window resizing:

 bool programcontinue = true;
 while(programcontinue)
 {
          while (PeekMessage(&Msg, NULL, 0, 0, PM_REMOVE))
          {
                   TranslateMessage(&Msg);
                   DispatchMessage(&Msg);
                   if(Msg.message == WM_SIZING)
                       IdleProcess();
          }

          IdleProcess();
 }

Be aware though that this assumes, that IdleProcess() does not create or consume any events. If thats the case, things get much more complicated.