Microsoft KB Archive/111008

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BUG: Gaps Between Wedges Drawn with Pie

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Q111008

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The information in this article applies to:


 * Microsoft Windows Software Development Kit (SDK) 3.1

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SYMPTOMS
Under certain circumstances, the Windows Pie API will leave gaps between pie wedges when there should be a solid line.

STATUS
Microsoft has confirmed this to be a bug in Windows version 3.1. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION
Pie takes the following parameters:

  BOOL Pie( HDC hdc,             int nLeftRect,             int nTopRect,             int nRightRect,             int nBottomRect,             int nxStartArc,             int nyStartArc,             int nxEndArc,             int nyEndArc ) Pie draws a pie-shaped wedge by drawing an elliptical arc whose center and two endpoints are joined by lines.

Using Pie, if two pie wedges are drawn with the same bounding rectangle and the end point of the first wedge is equal to the start point of the second wedge, there can be a gap between adjacent wedges. This gap shows up only with certain pie sizes and certain start/end points.

Additional query words: buglist3.10 3.10

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Technology : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK310