Microsoft KB Archive/932866

= FIX: The right edge or the lower edge of an exclusionary clipping region can be drawn in a GDI+ application on a computer that is running Windows XP, Windows Server 2003, or Windows Vista =

Article ID: 932866

Article Last Modified on 8/29/2007

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APPLIES TO


 * Platform SDK Redistributable: GDI+

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SYMPTOMS
On a computer that is running Microsoft Windows XP, Microsoft Windows Server 2003, or Windows Vista, you use an exclusionary clipping region in a Graphics Device Interface (GDI+) application. In the application, the right edge or the lower edge of the region can be drawn. However, you expect that these edges cannot be drawn.

This problem occurs if the following conditions are true:
 * The Pen class has an alpha component
 * The value of the alpha component is less than 255.

This problem does not occur when the value of the alpha component is 255.

Note An exclusionary clipping region is a region that cannot be drawn. You can only draw in the area that is outside this region.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
You must have one of the following operating systems installed to apply this hotfix:
 * Microsoft Windows XP Service Pack 2 (SP2)
 * Windows Server 2003 Service Pack 2 (SP2)
 * Windows Server 2003 Service Pack 1 (SP1)
 * Windows Vista

Restart requirement
You must restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista, x64-based versions


WORKAROUND
To work around this problem, set the value of the Graphics.SmoothingMode property to AntiAlias.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbwinvistapostrtmfix kbwinserv2003postsp2fix kbwinxppresp3fix kbexpertiseadvanced kbfix kbhotfixserver kbqfe kbpubtypekc KB932866

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