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MoCreateMediaType

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Microsoft DirectShow 9.0

MoCreateMediaType

The MoCreateMediaType function allocates a new media type structure.

Syntax

  HRESULT MoCreateMediaType(
    DMO_MEDIA_TYPE **ppmt, 
    DWORD cbFormat
);

Parameters

ppmt

Receives a pointer to an allocated DMO_MEDIA_TYPE structure.

cbFormat

Number of bytes to allocate for the format block. Can be zero.

Return Value

Returns an HRESULT value. Possible values include the following.

Result Code Description
E_OUTOFMEMORY Insufficient memory
E_POINTER NULL pointer argument
S_OK Success

Remarks

This function allocates a new DMO_MEDIA_TYPE structure on the heap. It also allocates memory for the format block. The caller must delete the structure by calling the MoDeleteMediaType function.

Internally, this function calls MoInitMediaType to allocate the format block.

Requirements

  Header: Declared in Dmort.h; include Dmo.h
  Library: Msdmo.lib.

See Also