CreateTimerQueue function (threadpoollegacyapiset.h)

Creates a queue for timers. Timer-queue timers are lightweight objects that enable you to specify a callback function to be called at a specified time.


HANDLE CreateTimerQueue();

Return value

If the function succeeds, the return value is a handle to the timer queue. This handle can be used only in functions that require a handle to a timer queue.

If the function fails, the return value is NULL. To get extended error information, call GetLastError.


To add a timer to the queue, call the CreateTimerQueueTimer function. To remove a timer from the queue, call the DeleteTimerQueueTimer function.

When you are finished with the queue of timers, call the DeleteTimerQueueEx function to delete the timer queue. Any pending timers in the queue are canceled and deleted.

To compile an application that uses this function, define _WIN32_WINNT as 0x0500 or later. For more information, see Using the Windows Headers.


For an example that uses CreateTimerQueue, see Using Timer Queues.


Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header threadpoollegacyapiset.h
Library Kernel32.lib
DLL Kernel32.dll

See also




Synchronization Functions

Thread Pooling

Timer Queues