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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. |