EngAcquireSemaphore function (winddi.h)
The EngAcquireSemaphore function acquires the resource associated with the semaphore for exclusive access by the calling thread.
Syntax
ENGAPI VOID EngAcquireSemaphore(
[in] HSEMAPHORE hsem
);
Parameters
[in] hsem
Handle to the semaphore associated with the resource to be acquired.
Return value
None
Remarks
EngAcquireSemaphore allows exclusive access to the driver resource associated with the semaphore by locking out all other threads from accessing the semaphore's resource.
A call to this routine should be followed with a call to EngReleaseSemaphore as quickly as possible.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows 2000 and later versions of the Windows operating systems. |
| Target Platform | Universal |
| Header | winddi.h (include Winddi.h) |
| Library | Win32k.lib |
| DLL | Win32k.sys |