PRB: Dithered Brushes Are Not Supported in DIB Sections (137370)
The information in this article applies to:
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Professional
- Microsoft Win32 Software Development Kit (SDK) 3.5
- Microsoft Win32 Software Development Kit (SDK) 3.51
- Microsoft Win32 Software Development Kit (SDK) 4.0
This article was previously published under Q137370 SYMPTOMS
Dithered brushes do not work in device contexts that have DIB sections
selected into them. If you create an HBITMAP using CreateDIBSection(),
select it into a memory DC, and then attempt to use a dithered brush
returned by CreateSolidBrush() to draw into the DIB section, the brush will
not be drawn with a dithered color.
CAUSE
To handle dithered brushes, the GDI relies on certain colors being
available in particular positions in the palette. DIB sections do not have
to have these colors in their color table, so the GDI cannot rely on the
necessary colors being available for dithering.
STATUS
This behavior is by design.
| Modification Type: | Minor | Last Reviewed: | 3/21/2005 |
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| Keywords: | kbprb KB137370 |
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