TCheckbox background
lazarus / 7-LCL

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tk · 2009-08-07 09:38

Hi, I'm placing a TCheckBox on a parent control. The control paints
itself only with WM_PAINT. Would like to make the checkbox really
transparent, i.e. to make checkbox's background the real parent's
painting and not only parent's Color. In Delphi this can be done
generally by utilizing CN_CTLCOLORSTATIC in checkbox's WndProc (no xp
themes) or parent's WM_ERASEBKGND (xp themes - VCL calls
DrawParentBackground). Is there a way in LCL? Thx

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IPguy · 2010-09-04 00:39

I would also be interested in an answer to this.

I would like to make the text background transparent, so the
underlying color Shape.color would show through. 

The clNone "color" option is not transparent.

Any solution / thoughts?

Update: Interesting - clNone IS transparent for TLabel and
TLabledEdit.  Time to submit a bug report, I think.

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typo · 2010-09-04 01:16

QuoteTime to submit a bug report, I think.
I think so.