Microsoft KB Archive/82495

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TrueType Clipping Related to Complex Clipping Regions

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Q82495

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The information in this article applies to:


 * Microsoft Windows versions 3.1, 3.11

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SUMMARY
With the introduction of TrueType fonts, many characters have negative &quot;a&quot; spacing. That is, these characters have an underhang such that a portion of these characters is under the body of the preceding character. An example of this is an italic &quot;f&quot;. The bottom of the &quot;f&quot; is below the &quot;i&quot; in &quot;if.&quot;

When the visible area of the window is not a complete rectangle (another application's windows might be covering a corner of the window), the bottom of the character that is supposed to be displayed to the left of the starting position is chopped off. This effect is called a &quot;complex clipping region.&quot;

MORE INFORMATION
To view this, do the following:


 * 1) Open Write and maximize it.
 * 2) Open up Clock and choose &quot;Always On Top.&quot;
 * 3) Return to Write. The window will now have a complex clipping region because of Clock's window being on top of it.
 * 4) Choose Times New Roman Italic, 36 point, and type in f. Note that the bottom left of the &quot;f&quot; is clipped off. This doesn't happen if the clock isn't on top.

Additional query words: 3.10 3.1 3.11

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Issue type :

Technology : kbWin3xSearch kbWin310 kbWin311