us_lockΒΆ
us_lock locks the Windows message loop while an UniScript function is executed.
- old_lock = us_lock(bLock)
Return Value
old_lock is the value of the lock flag before the function call.
Parameters
- bLock
If bLock is TRUE (1) the message loop is locked and if bLock is FALSE (0) the message loop is unlocked.
Comment
If the lock flag is enabled, the execution of a UniScript function cannot be aborted (via ESC key or Ctrl+C). Paint messages are not executed, the UniPlot window is not updated. It is also not possible to start another UniScript command.
If the lock flag is not set to us_lock(FALSE) 5 seconds after
us_lock(TRUE) has been called it will be set to FALSE automatically.
The following while loop cannot be interrupted for 5 seconds (Ctrl+C or ESC).
{ us_lock(1); while (1) a=1; }
Example
old = us_lock(TRUE);
// Do something
us_lock(old);
History
Version |
Description |
|---|---|
5.14.5 |
New. |
See also
id-47519