通过

DD_DXAPI_GETVERSIONNUMBER control code

  • 项目

A video capture driver passes DD_DXAPI_GETVERSIONNUMBER in the dwFunctionNum parameter of the DxApi function to return the version of the kernel-mode video transport (dxapi.sys) that is supported by the video miniport driver's DxApi interface.

Input Parameters

  • lpvInBuffer
    Is NULL.

Output Parameters

  • lpvOutBuffer
    Pointer to a DDGETVERSIONNUMBER structure that contains the version number of the kernel-mode video transport component of DirectDraw.

Remarks

This function identifier can only be called at PASSIVE_LEVEL.

Requirements

Header file: Ddkmapi.h (include Ddkmapi.h)

See also

DDGETVERSIONNUMBER