RE: [Adobe-source-devel] group nesting issues windows

[Mat M. <mm...@em...>]

 

> -----Original Message-----
> From: ado...@li... 
> [mailto:ado...@li...] On 
> Behalf Of Thomas Witt
> Sent: Tuesday, January 03, 2006 8:46 PM
> To: ado...@li...
> Subject: [Adobe-source-devel] group nesting issues windows
> 
> 
> Hi,
> 
> attached are sheets that demonstrate what I think are nesting 
> issues with the group widget on Windows. On Windows XP the 
> nested group uses a bigger font for the group name and the 
> overlay displays as one black block.

Hi Thomas,

I spent a bit of time looking into this today to see if I could fix it for
the the upcoming release. The presence of the overlay group is definitely
interfering with the proper drawing of the panel/static-text. As you
probably know, groups are implemented as buttons in the Win32 API. Worse
yet, groups seem to prevent messages from being passed between
child<->parent. In the last release I trapped the group window_proc to
propagate messages, but perhaps I didn't go far enough?

I ran Begin with your group.* files and with a modified version that set
Overlay to a row instead of a group. Drawing worked fine in the latter but
as you point out, a black box is drawn in the first case. Interestingly, a
Spy++ capture shows WM_GETTEXT and WM_PAINT messages in each case. As a
result, I am working with the idea that the text is getting drawn, but
something additional is getting drawn/erased and obscuring the text in the
group case. I am just coming up to speed on Win32 API programming, so I
welcome any suggestions at this point.

 - Mat