VideoPortCreateSpinLock function (video.h)

The VideoPortCreateSpinLock function creates a spin lock.

Syntax

VIDEOPORT_API VP_STATUS VideoPortCreateSpinLock(
  [in]  IN PVOID       HwDeviceExtension,
  [out] OUT PSPIN_LOCK *SpinLock
);

Parameters

[in] HwDeviceExtension

Pointer to the miniport driver's device extension.

[out] SpinLock

Pointer to a memory location that will receive a pointer to the newly created spin lock.

Return value

On success the function returns NO_ERROR. If an error occurs, the function returns an appropriate error code.

Remarks

This routine must be called before an initial call to VideoPortAcquireSpinLock or to any other support routine that requires a spin lock as an argument.

Requirements

See also

VideoPortAcquireSpinLock

VideoPortDeleteSpinLock