In This Topic ▼

IltmmConvert::put_Preview

#include "ltmm.h"

C Syntax	HRESULT IltmmConvert_put_Preview(pConvert, newVal)
C++ Syntax	HRESULT put_Preview(newVal)

IltmmConvert *pConvert;	pointer to an interface
VARIANT_BOOL newVal;	flag

Adds or removes the preview graph for the convert graph.

Parameter	Description
pConvert	Pointer to an IltmmConvert interface.
newVal	Flag that indicates whether to add or remove the preview graph from the convert graph. Possible values are:
	Value	Meaning
	VARIANT_TRUE	Add the preview graph.
	VARIANT_FALSE	Remove the preview graph. This is the default value.

S_OK	The function was successful.
<> S_OK	An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

Adding the preview graph in the convert graph will enable previewing the stream while converting.

To add or remove the preview graph, the convert graph must be in the stopped state.

Required DLLs and Libraries

LTMM

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

Help Version 21.0.2021.7.19

LEADTOOLS Multimedia C API Help

Functions:	IltmmConvert::get_Preview, IltmmConvert::put_PreviewVisible, IltmmConvert::get_PreviewVisible, IltmmConvert::put_VideoWindowFrame, IltmmConvert::get_VideoWindowFrame, IltmmConvert::get_ForceNoRecompressionPreview, IltmmConvert::put_ForceNoRecompressionPreview
Topics:	Multimedia Function Group