PRB: PaintRgn() Fills Incorrectly with Hatched Brushes (82169)
The information in this article applies to:
- Microsoft Windows Software Development Kit (SDK) 3.1
- Microsoft Win32 Application Programming Interface (API), when used with:
- Microsoft Windows NT Server 4.0
- Microsoft Windows NT Workstation 4.0
This article was previously published under Q82169 SYMPTOMS
When the TRANSPARENT background mode and a mapping mode other than
MM_TEXT are selected and an application calls the PaintRgn() API
to fill a complex region with a hatched brush, a disconnected
pattern results.
CAUSE
The Windows Graphics Device Interface (GDI) draws a complex region
by filling the individual rectangles that make up the region. The
code to compute the position of each rectangle on the screen fails
when the screen coordinates are not in units of pixels. The error
is visible when a hatched brush style is used in TRANSPARENT mode.
RESOLUTION
When a hatched brush and TRANSPARENT background mode are required,
use the MM_TEXT mapping mode.
STATUS
This behavior is by design.
| Modification Type: | Major | Last Reviewed: | 12/1/2003 |
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| Keywords: | kbnofix kbprb KB82169 |
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