IMDSPDevice::GetFormatSupport method (mswmdm.h)

Article
10/13/2021

The GetFormatSupport method retrieves all the formats supported by the device. The format information includes codecs, file formats, and digital rights management schemes.

Syntax

HRESULT GetFormatSupport(
  [out] _WAVEFORMATEX **pFormatEx,
  [out] UINT          *pnFormatCount,
  [out] LPWSTR        **pppwszMimeType,
  [out] UINT          *pnMimeTypeCount
);

Parameters

[out] pFormatEx

Pointer to an array of _WAVEFORMATEX structures containing information about codecs and bit rates supported by the device.

[out] pnFormatCount

Pointer to the number of elements in the pFormatEx array.

[out] pppwszMimeType

Pointer to an array that describes file formats and digital rights management schemes supported by the device.

[out] pnMimeTypeCount

Pointer to the number of elements in the pppwszMimeType array.

Return value

The method returns an HRESULT. All the interface methods in Windows Media Device Manager can return any of the following classes of error codes:

Standard COM error codes
Windows error codes converted to HRESULT values
Windows Media Device Manager error codes

For an extensive list of possible error codes, see Error Codes.

Remarks

Memory for the pFormatEx and pppwszMimeType parameters is allocated by this method and must be freed by the caller using CoTaskMemFree, a standard Win32 function.

This method must be implemented. It must not return WMDM_E_NOTSUPPORTED or E_NOTIMPL. For more information, see Mandatory and Optional Interfaces.

Requirements

Requirement	Value
Target Platform	Windows
Header	mswmdm.h
Library	Mssachlp.lib