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The D3DKMTAcquireKeyedMutex function acquires a keyed mutex object.
Syntax
PFND3DKMT_ACQUIREKEYEDMUTEX Pfnd3dkmtAcquirekeyedmutex;
NTSTATUS Pfnd3dkmtAcquirekeyedmutex(
[in, out] D3DKMT_ACQUIREKEYEDMUTEX *unnamedParam1
)
{...}
Parameters
[in, out] unnamedParam1
A pointer to a D3DKMT_ACQUIREKEYEDMUTEX structure that specifies the keyed mutex object to acquire.
Return value
D3DKMTAcquireKeyedMutex returns one of the following values:
| Return code | Description |
|---|---|
| STATUS_SUCCESS | The keyed mutex object was successfully acquired. |
| STATUS_DEVICE_REMOVED | The graphics adapter was stopped or the display device was reset. |
| STATUS_INVALID_PARAMETER | Parameters were validated and determined to be incorrect. |
| STATUS_NO_MEMORY | D3DKMTAcquireKeyedMutex could not complete because of insufficient memory. |
This function might also return other NTSTATUS values.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | D3DKMTAcquireKeyedMutex is supported beginning with the Windows 7 operating system. |
| Target Platform | Universal |
| Header | d3dkmthk.h (include D3dkmthk.h) |