VC_In

BYTE
VC_In(
    PDEVICE_INFO pDevInfo,
    BYTE bOffset
    );

The VC_In function reads one byte from a device’s mapped I/O port address space.

Parameters

pDevInfo

Pointer to the DEVICE_INFO structure returned by VC_Init.

bOffset

Offset from the mapped I/O port’s base address.

Return Value

Byte contents of the specified port address offset.

Comments

A kernel-mode video capture driver specifies the base address of a device’s I/O port address space when calling VC_GetResources. The bOffset parameter to VC_In specifies an offset from that base address.

See Also

VC_Out