Edit

VideoPortReadRegisterUshort function (video.h)

  • Article

The VideoPortReadRegisterUshort function reads a USHORT value from a mapped register range.

Syntax

VIDEOPORT_DEPRECATED VIDEOPORT_API USHORT VideoPortReadRegisterUshort(
  PUSHORT Register
);

Parameters

Register

Pointer to the register. The given Register must be in a mapped memory-space range returned by VideoPortGetDeviceBase.

Return value

VideoPortReadRegisterUshort returns the USHORT value read from the adapter.

Remarks

A miniport driver's HwVidInterrupt or HwVidSynchronizeExecutionCallback function can call VideoPortReadRegisterUshort.

Callers of VideoPortReadRegisterUshort can be running at any IRQL, provided that the memory pointed to by the Register parameter is resident, mapped device memory.

Requirements

Requirement Value
Minimum supported client Available in Windows 2000 and later versions of the Windows operating systems.
Target Platform Desktop
Header video.h (include Video.h)
Library Videoprt.lib
DLL Videoprt.sys
IRQL See Remarks section.

See also

HwVidInterrupt

HwVidSynchronizeExecutionCallback

VideoPortGetDeviceBase