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Windows API: Need to subclass for redrawing of DrawFocusRect
2002-11-04 -- Jim Kane
Newsgroups: TopSpeed.Topic.Language
you probably want prop:clienthandle not prop:handle in addition to
invalidate and updatewindow.
you'll need to subclass and redraw your focus rec in response to wm_paint or
if another window overlaps yours, your focus rectangle will go away and not
be redrawn.
jim kane
"Arnor Baldvinsson" wrote in message
news:3dc6ca9e.16236968@news.softvelocity.com...
> Hi all,
>
> Recently I saw a posting on one of the newsgroups about drawing the
> focus rectangle. I've been playing with the DrawFocusRect and while
> there are no errors posted and the function succeedes, but there is no
> rectangle drawn. Here is my test code:
>
> DrawRect ROUTINE
> Data
> R Like(RECT)
> ThisDC Long
> hwnd Long
> X Byte
> Code
> 0{Prop:Pixels} = True
> R.Top = 1
> R.Left = 1
> R.Right = 50
> R.Bottom = 50
> Hwnd = 0{Prop:Handle}
> ThisDC = GetDC(Hwnd)
> X = DrawFocusRect(ThisDC,R)
> Message('X = ' & X)
> ReleaseDC(Hwnd,ThisDC)
> 0{Prop:Pixels} = False
>
> DrawFocusRect always returns 1, indicating success. I've looked at
> some example code on MSDN and can't see any difference. I've also
> tried to create a compatible bitmat and draw on it, with same results.
>
> Any ideas welcome:)
>
> Best regards,
>
> Arnór Baldvinsson
> Icetips Software
> San Antonio, Texas, USA
> www.icetips.com
> arnor@icetips.com
> ICQ: 113314380
>
> Subscribe to information from Icetips.com:
> http://www.icetips.com/getnotificationinfo.htm
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