LEADTOOLS Media Foundation Help
| LEADTOOLS Media Foundation Help > LEADTOOLS Media Foundation Features > Media Foundation Function References > IltmfConvert Interface > IltmfConvert::put_Preview |
#include "ltmf.h"
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C Syntax |
HRESULT IltmfConvert_put_Preview(pConvert, newVal) |
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C++ Syntax |
HRESULT put_Preview(newVal) |
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IltmfConvert *pConvert; |
/* pointer to an interface */ |
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VARIANT_BOOL newVal; |
/* flag */ |
Adds or removes the preview graph for the convert graph.
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Parameter |
Description |
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pConvert |
Pointer to an IltmfConvert interface. |
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newVal |
Flag that indicates whether to add or remove the preview graph from the convert graph. Possible values are: |
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Value |
Meaning |
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VARIANT_TRUE |
Add the preview graph. |
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VARIANT_FALSE |
Remove the preview graph. This is the default value. |
Returns
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S_OK |
The function was successful. |
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<> S_OK |
An error occurred. Refer to the Error Codes or the HRESULT error codes in the MediaFoundation documentation. |
Comments
Adding the preview topology branch in the convert topology will enable previewing the stream while converting.
To add or remove the preview node, the convert session must be in the stopped state.
Required DLLs and Libraries
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LTMF For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64
See Also
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Functions: |
IltmfConvert::get_Preview, IltmfConvert::put_PreviewVisible, IltmfConvert::get_PreviewVisible, IltmfConvert::put_VideoWindowFrame, IltmfConvert::get_VideoWindowFrame, |
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Topics: |
Example
For a C++ example, refer to IltmfConvert::put_Preview Example for C++.
