PRB: DrawText Can Cause Stack Fault (151488)
The information in this article applies to:
- Microsoft Windows Software Development Kit (SDK) 3.1
- Microsoft Windows Software Development Kit (SDK) 3.11
This article was previously published under Q151488 SYMPTOMS
In Windows versions 3.1 and 3.11, when a string that contains long,
contiguous substrings of spaces is passed to DrawText, and the DT_WORDBREAK
flag is specified, a stack fault may occur.
CAUSE
The DT_WORDBREAK flag specifies that DrawText break the string between
words. The method used by DrawText to determine where these breaks occur
involves recursion. If the stack size is small enough and the number of
spaces is large enough, the recursion causes a stack fault.
RESOLUTION
There are two ways to work around this problem. One is to raise the stack
size of the application. This can be done by adding a STACKSIZE statement to the application's .DEF file.
Another solution that drastically speeds up the call to DrawText is to
parse the string and turn all contiguous strings of spaces into single
spaces. The resulting string can then be passed to DrawText without the
overhead that the original string would have demanded.
STATUS
This behavior is by design.
| Modification Type: | Minor | Last Reviewed: | 3/21/2005 |
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| Keywords: | kbprb KB151488 |
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