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meiPlatformKey
Declaration
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long meiPlatformKey(MPIWait wait) |
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Required Header: stdmei.h |
Description
meiPlatformKey returns an input character (typically a keystroke) if an input character is available.
If an input charater is not available, PlatformKey waits wait milliseconds for an input character to become available.
NOTE:
meiPlatformKey is not fully implemented for all operating sytems. For example, in VentureCom's RTX Windows Extensions, a keystroke will be simulated after 10 seconds.
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If "wait" is |
Then |
| MPIWaitFOREVER (-1) |
PlatformKey will wait for an input character forever |
| MPIWaitPOLL (0) |
PlatformKey will return immediately |
| a value (not -1 or 0) |
PlatformKey will wait for an input character for wait milliseconds |
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| Return Values |
-1 |
if no input character was available |
0 |
PlatformKey has read a non-zero character (typically a function key or other non-ASCII value), and meiPlatformKey(...) should be called AGAIN immediately to receive that non-zero character |
a value (not -1 or 0)
(an ASCII character) |
(typically a keystroke) if an input character is available |
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See Also
meiSqNodeCreate | meiSqNodeValidate
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