IoStartTimer function (wdm.h)
The IoStartTimer routine enables the timer associated with a given device object so the driver-supplied IoTimer routine is called once per second.
C++
void IoStartTimer(
[in] PDEVICE_OBJECT DeviceObject
);
[in] DeviceObject
Pointer to a device object whose timer routine is to be called.
None
The driver must already have set up the IoTimer routine for the DeviceObject by calling IoInitializeTimer.
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 2000. |
| Target Platform | Windows |
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h) |
| Library | NtosKrnl.lib |
| DLL | NtosKrnl.exe |
| IRQL | <= DISPATCH_LEVEL |