TrueType Clipping Related to Complex Clipping Regions
ID: Q82495
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The information in this article applies to:
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Microsoft Windows versions 3.1, 3.11
SUMMARY
With the introduction of TrueType fonts, many characters have negative "a"
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 "f". The bottom of the "f" is below the "i" in "if."
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 "complex clipping
region."
MORE INFORMATION
To view this, do the following:
- Open Write and maximize it.
- Open up Clock and choose "Always On Top."
- Return to Write. The window will now have a complex clipping region
because of Clock's window being on top of it.
- Choose Times New Roman Italic, 36 point, and type in f. Note that
the bottom left of the "f" is clipped off. This doesn't happen if
the clock isn't on top.
Additional query words:
3.10 3.1 3.11
Keywords :
Version : WINDOWS:3.1,3.11
Platform : WINDOWS
Issue type :