DlReadDeviceSpace function (dispmprt.h)

Reads from a device configuration space or the expansion ROM of a display adapter.

Syntax

ULONG DlReadDeviceSpace(
  PVOID DeviceHandle,
  ULONG DataType,
  ULONG SlotNumber,
  PVOID Buffer,
  ULONG Offset,
  ULONG Length
);

Parameters

DeviceHandle

A handle that represents a display adapter.

DataType

The type of read transaction to be performed.

SlotNumber

Buffer

A pointer to a caller-allocated buffer that receives the data read from the configuration space or ROM.

Offset

The offset, into the configuration space or the expansion ROM, at which the read transaction begins.

Length

The number of bytes to be read.

Return value

This function returns ULONG.

Requirements