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Stored procedures
Opens a synchronization event between several threads.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
// Create an event
LetsGo is eventAutomatic
 
// Run a first thread
ThreadExecute("Thread1", threadNormal, "Thread_First")
// Locks the current thread until the event is obtained
ThreadWaitSignal()
 
// Run a second thread
ThreadExecute("Thread2", threadNormal, "Thread_Second")
// Locks the current thread until the event is obtained
ThreadWaitSignal()
 
// Opens the event to run the threads
EventOpen(LetsGo)
PROCEDURE Thread_First()
Trace(dbgInfo(dbgProcess) + " - ThreadSendSignal(threadMain)")
ThreadSendSignal(threadMain)
EventWait("LetsGo")
Trace(dbgInfo(dbgProcess) + " - Event received")
PROCEDURE Thread_Second()
Trace(dbgInfo(dbgProcess) + " - ThreadSendSignal(threadMain)")
ThreadSendSignal(threadMain)
EventWait("LetsGo")
Trace(dbgInfo(dbgProcess) + " - Event received")
Syntax
EventOpen(<Event>)
<Event>: Character string, or AutomaticEvent or ManualEvent variable
Name of the event to open. This name can correspond to:
Remarks
  • This function is equivalent to the following syntax of EventChange:
    EventChange(<Event>, eventOpen)
  • For an automatic event: A single thread is processed by the event.
    The event is automatically closed once the thread is processed.
    • Pending threads: If there is no pending thread, the event remains open until the next thread, then it is closed.
    • New threads: The new threads are added to the pending queue.
  • For a manual event: The event is opened.
    • Pending threads: All the pending threads are processed.
    • New threads: If other threads arrive while the event is still open, they are processed.
Component : wd240vm.dll
Minimum version required
  • Version 20
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