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VideoMixer.OSDItemPictureMemoryChange method |
  
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VideoMixer.OSDItemPictureMemoryChange method |
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Remarks
Changes the picture for an existing graphical item on the On-Screen-Display (OSD).
For further details about the use of the embedded video mixer see the VideoMixer object section.
For details about video mixing/blending refer to the How to use the video mixer tutorial.
Syntax
[Visual Basic] control.VideoMixer.OSDItemPictureMemoryChange ( nMixerUniqueId as Long, nItemUniqueId as Long, pBuffer as Variant, nBufferLength as Long ) as enumErrorCodes |
[C++] short control.VideoMixer.OSDItemPictureMemoryChange ( long nMixerUniqueId, long nItemUniqueId, const VARIANT FAR& pBuffer, long nBufferLength ); |
Parameter |
Description |
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nMixerUniqueId |
Unique identifier of the video mixer returned by a previous call to the VideoMixer.Create method |
nItemUniqueId |
Unique identifier of item returned by a previous call to the VideoMixer.OSDItemPictureMemoryAdd method |
pBuffer |
Variant parameter containing the pointer to the picture file previously loaded in memory. Accepted picture formats are BMP, GIF, JPEG and PNG. |
nBufferLength |
Length in bytes of the given buffer |
Return value
Value |
Meaning |
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Negative value |
An error occurred, check the LastError property value in order to get the error code |
enumErrorCodes.ERR_NOERROR (0) |
The method call was successful |
