References ▼
Retrieves the subtype of the media sample.
#include "ltmm.h"
| Language | Syntax |
|---|---|
| C | HRESULT IltmmMediaTypeDisp_get_Subtype(pMediaTypeDisp, pVal) |
| C++ | HRESULT get_Subtype(pVal) |
Pointer to an IltmmMediaTypeDisp interface.
Pointer to a character string that contains the subtype string. For more information on possible strings, refer to the DirectShow documentation.
| 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. |
The string referenced by pVal contains a formatted Globally Unique Identifier (GUID) of the form {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}. For more information on the available GUIDs, refer to the DirectShow documentation.
If the function succeeds, the caller must free the BSTR referenced by pVal, by calling the SysFreeString function.
Win32, x64.
| Language | Example |
|---|---|
| C | Copying ltmmMediaType Attributes and Data |
| C++ | Copying ltmmMediaType Attributes and Data |
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