References ▼
Determines whether a specific preview tap for some preview source is available or not.
#include "ltmm.h"
| Language | Syntax |
|---|---|
| C | HRESULT IltmmCapture_IsPreviewTapSupported(pCapture, Source, Tap, pVal) |
| C++ | HRESULT IsPreviewTabSupported(Source, Tap, pVal) |
Pointer to an IltmmCapture interface.
The preview source for which to determine whether a preview tap is supported. Possible values are:
The preview tap type for which to determine whether it is supported. Possible values are:
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. |
| Value | Meaning |
|---|---|
| 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. |
Win32, x64.
| Language | Example |
|---|---|
| C | IltmmCapture::IsPreviewTapSupported |
| C++ | IltmmCapture::IsPreviewTapSupported |
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document