Respond to messages in a loop to avoid UI thread blocking during the loop

// If a message exists, the system responds to and processes the message.

Code
Bool cxxxdlg: peekandpump ()
{
Static MSG;

While (: peekmessage (& MSG, null, 0, 0, pm_noremove ))
{
If (! Afxgetapp ()-> pumpmessage ())
{
: Postquitmessage (0 );
Return false;
}

If (msg. Message = wm_keydown & vk_escape = msg. wparam)
{
M_bdocount = false;
}
}

Return true;
}

// Process messages in the message queue in each loop

Code
Void cxxxdlg: loop ()
{
While ()
{
// Check messages in the Message Queue
Peekandpump ();
// Do other work here

}
}