Design question for having multiple windows

[Sean]

Hi all,

I have a design question here.
I have window A and in window A, if user clicks a button,
windows B will appear. Window B has to do a lot of
redrawing and movement (Location changes).

What is the best approach to implement this? so that even
when I move/drag window A around, window B can redraw
itself nicely without the jerking/blury effect on the
graphics.

Thank you very much in advance.



regards,
Sean

 

[Guest]

I haven't had to do this with a .NET form so I dunno API offhand but...

There is a window creation flag on a raw WIN32 window that controls whether
or not the window contents is buffered. If the window contents IS buffered
then you can move the window around all that you want and it won't constantly
be repainting itself; it will only repaint if contents changes or if the
window is obscurred/minimized and then made visible again...

--Richard