[Lazarus] Optimize DBGrid speed (Maybe win-widgetset paint specific)

Martin Frb lazarus at mfriebe.de
Wed Jan 8 19:06:37 CET 2014

On 08/01/2014 16:55, Petr Kristan wrote:
> On Wed, Jan 08, 2014 at 02:35:08PM +0100, Hans-Peter Diettrich wrote:
>> Petr Kristan schrieb:
>>> In the beginning of Grid paint is Canvas.GetClipRect

Have you checked if it applies to other grids too? If it is generic then 
mailing with the subject "dbgrid" will potentially exclude people.

I have myself not much looked at painting at all. If I take an empty 
dbgrid (no datasource), and call Invalidatecect(grid.handle, @r), then I 
get only one call to paint. (vista/classic theme). I have not checked 
how much that one call does paint.

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