BUG: Some ROP Codes Cause Inconsistent Polygon() Line Segments (111580)
The information in this article applies to:
- Microsoft Windows Software Development Kit (SDK) 3.0
- Microsoft Windows Software Development Kit (SDK) 3.1
This article was previously published under Q111580 SYMPTOMS
When a ROP (raster operation) such as R2_XORPEN or R2_NOT is used with the
Polygon() function, the line segments may be inconsistent; they may appear
highlighted or ragged when they should appear smooth. This may be more
apparent when the polygon is filled with a gray brush (80h).
CAUSE
The border does not overlap the interior fill precisely. Polygonal filling
works successfully, but the XOR operation with the pen shows that the
overlap between border and fill is not completely consistent.
STATUS
Microsoft has confirmed this to be a bug in Windows versions 3.0 and
3.1. We are researching this problem and will post new information here in
the Microsoft Knowledge Base as it becomes available.
Modification Type: | Major | Last Reviewed: | 10/29/2003 |
---|
Keywords: | KB111580 |
---|
|