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VideoPortCreateSpinLock function (video.h)

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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

Requirement Value
Minimum supported client Available in Windows XP and later versions of the Windows operating systems.
Target Platform Desktop
Header video.h (include Video.h)
Library Videoprt.lib
DLL Videoprt.sys
IRQL PASSIVE_LEVEL

See also

VideoPortAcquireSpinLock

VideoPortDeleteSpinLock