Help Version 19.0.2017.10.27
References ▼
#include "ltmm.h"
C Syntax |
HRESULT IltmmCapture_IsPreviewTapSupported(pCapture, Source, Tap, pVal) |
C++ Syntax |
HRESULT IsPreviewTabSupported(Source, Tap, pVal) |
IltmmCapture *pCapture; |
pointer to an interface |
long Source; |
source type |
long Tap; |
tap type |
VARIANT_BOOL *pVal; |
pointer to a variable |
Determines whether a specific preview tap for some preview source is available or not.
| Parameter | Description | |
| pCapture | Pointer to an IltmmCapture interface. | |
| Source | The preview source for which to determine whether a preview tap is supported. Possible values are: | |
| Value | ||
| ltmmCapture_Preview_VideoAndAudio | ||
| ltmmCapture_Preview_Video | ||
| ltmmCapture_Preview_Audio | ||
| Tap | The preview tap type for which to determine whether it is supported. Possible values are: | |
| Value | ||
| ltmmCapture_PreviewTap_Source | ||
| ltmmCapture_PreviewTap_Processors | ||
| ltmmCapture_PreviewTap_Compressor | ||
| pVal | Pointer to a variable to be updated with a value that indicates whether the specified source and tap are supported. Possible values are: | |
| Value | Meaning | |
| VARIANT_TRUE | Preview tap supported. | |
| VARIANT_FALSE | Preview tap not supported. | |
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
Topics: |
For a C example, refer to IltmmCapture::IsPreviewTapSupported Example for C.
For a C++ example, refer to IltmmCapture::IsPreviewTapSupported Example for C++.
Raster .NET | C API | C++ Class Library | JavaScript HTML5
Document .NET | C API | C++ Class Library | JavaScript HTML5
Medical .NET | C API | C++ Class Library | JavaScript HTML5
Medical Web Viewer .NET