[Lazarus] win32 ShowScrollBar triggers immediate paint

luiz americo pereira camara luizmed at oi.com.br
Sat Jan 5 12:46:56 CET 2013


2013/1/5 Mattias Gaertner <nc-gaertnma at netcologne.de>:
> Hi,
>
> ShowScrollBar -> Windows.RedrawWindow
>
> Can some win32 developer explain, why the paint is immediate. Why not
> queue?

Some notes:

Here in windows 7, no wm_paint is called

according to docs:
http://msdn.microsoft.com/en-us/library/windows/desktop/dd162911%28v=vs.85%29.aspx
no immediate paint should occur with the used falgs

Luiz

>
> Mattias
>
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