| LEADTOOLS Multimedia API Help > LEADTOOLS Multimedia Features > Multimedia Function References > IltmmConvert Interface > IltmmConvert::put_PreviewVisible | 
#include "ltmm.h"
| C Syntax | HRESULT IltmmConvert_put_PreviewVisible(pConvert, newVal) | 
| C++ Syntax | HRESULT put_PreviewVisible(newVal) | 
| IltmmConvert *pConvert; | /* pointer to an interface */ | 
| VARIANT_BOOL newVal; | /* flag */ | 
Enables or disables the preview during the conversion process.
| Parameter | Description | |
| pConvert | Pointer to an IltmmConvert interface. | |
| newVal | Flag that indicates whether to enable or disable previewing. Possible values are: | |
| 
 | Value | Meaning | 
| 
 | VARIANT_TRUE | Enable previewing. This is the default value. | 
| 
 | VARIANT_FALSE | Disable previewing. | 
Returns
| 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. | 
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
See Also
Example
For a C example, refer to IltmmConvert::put_PreviewVisible Example for C.
For a C++ example, refer to IltmmConvert::put_PreviewVisible Example for C++.