Re: [GD-Windows] Detecting mouse exiting window?

[Javier A. <ja...@py...>]

Nicolas Romantzoff <nic...@fr...> wrote:

> 1. To capture the mouse on first WM_MOUSEMOVE received by window
> (mouse enters) 2. To get each single mouse move message afterward..
> Test if its outside of window..     If inside => 2
>     If outside => 3
> 3. Release mouse capture => 1

If you want to go ahead with that scheme, good luck... Remember:

 - Handle the WM_CAPTURECHANGED message
 - Check against the client rect so the the window controls (minimize, etc)
work.
 - Release the mouse whenever the window (NOT the app - might be a child
window) loses focus.
 - Make sure that all windows special keys work properly while the mouse is
captured - not sure if mouse capture affects that.
 - Whenever in doubt, Release the mouse - if it's on the window you'll
recapture it when it moves again.
 - Many other things I'm sure will go wrong.

The polling solution may be a hack but at least it's a compliant way to
overcome a limitation of Win95.

  Javier Arevalo
  Pyro Studios