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Q71230: INFO: ExtTextOut() Instead of TextOut() to Improve Performance

Article: Q71230
Product(s): Microsoft Windows Software Development Kit
Version(s): WINDOWS:3.1
Operating System(s): 
Keyword(s): kb16bitonly kbSDKWin16
Last Modified: 18-JUN-1999

3.00 3.10
WINDOWS
kbprg

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The information in this article applies to:

- Microsoft Windows Software Development Kit (SDK) 3.1 
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SUMMARY
=======

If speed is the most critical factor when an application writes text to a
window, then the application should take advantage of every possible speed
improvement no matter how minor. Therefore, when writing text to a window in a
time-constrained environment, ExtTextOut() should be used instead of TextOut()
because ExtTextOut() is slightly faster.

ExtTextOut() is the lowest level function that an application can call to output
text to a window. On the other hand, TextOut() is essentially a call to
ExtTextOut() with wOptions, lpRect, and lpDx set to zero. Using ExtTextOut() may
not result in a noticeable speed difference; however, it is the faster
alternative especially when the application has a large amount of text to write.

Additional query words: 3.00 3.10

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Keywords          : kb16bitonly kbSDKWin16 
Technology        : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK310
Version           : WINDOWS:3.1
Issue type        : kbinfo

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