ON KEY Trapping CTRL, SHIFT, CAPS LOCK, NUM LOCK Combinations (39252)
The information in this article applies to:
- Microsoft QuickBASIC 4.0
- Microsoft QuickBASIC 4.0b
- Microsoft QuickBASIC 4.5
- Microsoft BASIC Compiler for MS-DOS and OS/2 6.0
- Microsoft BASIC Compiler for MS-DOS and OS/2 6.0b
- Microsoft Basic Professional Development System (PDS) for MS-DOS and MS OS/2 7.0
- Microsoft Basic Professional Development System (PDS) for MS-DOS and MS OS/2 7.1
This article was previously published under Q39252 SUMMARY
Pressing any key in combination with CTRL, SHIFT, ALT, CAPS LOCK, or
NUM LOCK changes the keyboard scan code. To trap combinations of keys,
the KEY statement requires adding together the values of the keyboard
flags as shown in the code example below.
Modification Type: | Minor | Last Reviewed: | 1/8/2003 |
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Keywords: | KB39252 |
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