[AD] Inconsistent behaviour with mouse coordinates in different windowed modes in Windows.

[Andrei Ellman <ae-a-alleg@xxxxxxxxxx>]

Hi,

When I am running a Windowed-mode Allegro app in Windows and I read the 
mouse-coordinates form mouse_x & mouse_y and I move the mouse outside of 
the Window, I get different behaviour depending on the GFX mode.

If the mode is GDIB (GFX_GDI), mouse_x & mouse_y will always show the 
last coordinates returned by  mouse_x & mouse_y when the mousecursor was 
inside the window, but if the mode is DXWN (GFX_DIRECTX_WIN), mouse_x & 
mouse_y will nearly always return -4096, -4096 (but sometimes, they will 
behave the same way as in GDIB)

Is the behaviour when the mouse exits the window supposed to be to 
always show the last coordinates returned by  mouse_x & mouse_y, or is 
the behavour supposed to be undefined?

AE.