AIT_GetKeyState
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Description
Acquires key status.
Format
int AIT_GetKeyState ( integer nVirtualKey // Virtual key );
Parameters
nVirtualKey (input)
Specify a virtual key code whose key status you want to acquire.
You have to set one of the following values.
|
Value |
Description |
|---|---|
|
NUMLOCK |
Num Lock key |
|
SCROLLLOCK |
Scroll Lock key |
|
CAPSLOCK |
Caps Lock key |
Return values
The return value is 1 if the key is on, and 0 if it is off. The return value is -1 if the function has not been executed successfully.
If the function has returned -1, you can use AIT_GetLastError to acquire an extended code. The following gives the error code that AIT_GetLastError might return:
|
Extended error number |
Error code |
|---|---|
|
87 |
ERROR_INVALID_PARAMETER |