Microsoft KB Archive/31171

= &quot;Mouse Driver Not Installed&quot; Incorrectly Displayed =

Article ID: 31171

Article Last Modified on 9/24/2003

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APPLIES TO


 * Microsoft Mouse Driver 9.1 Standard Edition
 * Microsoft Mouse Driver 7.04 Standard Edition
 * Microsoft Mouse Driver 8.2 Standard Edition
 * Microsoft Mouse Driver 9.0 Standard Edition

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This article was previously published under Q31171



SUMMARY
If you compile the C program in chapter 7, pages 15 and 16, of the &quot;Microsoft Mouse Programmer's Reference Guide&quot; (the three-ring binder edition) using any version of Microsoft C or QuickC, the program compiles correctly. However, it returns the message &quot;Mouse driver not installed&quot; even though the mouse is installed.



MORE INFORMATION
This problem is caused by an error in the code. The eleventh line of code incorrectly reads as follows: if ( m1 = 0 ) { To solve the problem, change the line to read as follows: if ( m1 == 0 ) { The error was corrected in the first edition of the &quot;Microsoft Mouse Programmer's Reference&quot; (bound edition).

Additional query words: 6.00 6.11 6.14 6.24 6.24b 6.25 6.26 7.00 7.03 7.04 7.05 8.00 8.10 8.20 9.00 docerr

Keywords: KB31171

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