Important:
This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.
A version of this page is also available for
4/8/2010

This method retrieves the multimedia format type.

Syntax 

HRESULT GetFourCCCodes(
  DWORD* 
pCount,
  DWORD* 
pCodes
);

Parameters

pCount

Number of FOURCCcodes in the pCodesarray.

pCodes

Array of DWORDmedia tags formerly used for Microsoft multimedia types.

Return Value

Returns an HRESULTvalue.

Remarks

In the original Microsoft® Windows® multimedia APIs, media types were tagged with 32-bit values created from four 8-bit characters and were known as FOURCCcodes. Because FOURCCcodes are unique, a one-to-one mapping is possible by allocating a range of 4 billion GUIDs representing FOURCCs.

This method retrieves the FOURCCcodes that the current display driver can support.

The number available is obtained by calling the method with a valid pCountpointer, but with pCodesset to NULL. In this case, the pCountvariable will be filled in with the number of FOURCCcodes available. An application can then allocate enough DWORDvalues for this many FOURCCcodes and call the method again with the array pointer in pCodes.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Windows Mobile Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment,
Version 2.12 requires DXPAK 1.0 or later