VideoPortCheckForDeviceExistence function (video.h)

Article
02/22/2024

The VideoPortCheckForDeviceExistence function determines whether the specified PCI device exists in the system.

Syntax

VIDEOPORT_DEPRECATED VIDEOPORT_API BOOLEAN VideoPortCheckForDeviceExistence(
  [in] IN PVOID  HwDeviceExtension,
  [in] IN USHORT VendorId,
  [in] IN USHORT DeviceId,
  [in] IN UCHAR  RevisionId,
  [in] IN USHORT SubVendorId,
  [in] IN USHORT SubSystemId,
  [in] IN ULONG  Flags
);

Parameters

[in] HwDeviceExtension

Pointer to the miniport driver's device extension.

[in] VendorId

Specifies the vendor ID.

[in] DeviceId

Specifies the device ID.

[in] RevisionId

Specifies the revision ID.

[in] SubVendorId

Specifies the subvendor ID.

[in] SubSystemId

Specifies the subsystem ID.

[in] Flags

Is a set of flags that determine whether the RevisionID and SubSystemID parameters should be used in checking for the new device. This parameter can be the logical OR of the following values:

Value	Meaning
CDE_USE_REVISION	Use the value in the RevisionID parameter in checking for the new device.
CDE_USE_SUBSYSTEM_IDS	Use the value in the SubSystemID parameter in checking for the new device.

Return value

VideoPortCheckForDeviceExistence returns TRUE if the device exists in the system, and FALSE otherwise.

Remarks

For more information about PCI identifiers, see Identifiers for PCI Devices.

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

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