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IMSVidDevice::get_Category

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Microsoft DirectShow 9.0

IMSVidDevice::get_Category

This topic applies to Windows XP or later.

The get_Category method retrieves the category of the device as a BSTR.

Syntax

  HRESULT get_Category(
  
  BSTR*
  
  Guid
  
  );

Parameters

  pGuid

[out]  BSTR that receives the device category.

Return Values

Returns an HRESULT value. Possible values include the following.

Value Description
S_OK Success.
E_POINTER NULL pointer argument.

Remarks

The device category is identified by a GUID. This method returns a string representation of the GUID.

This method is provided for Automation clients. C++ applications can use the IMSVidDevice::get__Category method, which returns a GUID rather than a BSTR.

The caller must free the returned string, using the SysFreeString function.

Requirements

  Header: Dshow.h.

  Library: Quartz.dll.

See Also