Is this page helpful?
Frees all the filters information allocated by calling the LBaseFile::GetFilterListInfo; or frees the information of a specific filter obtained in pFilterInfo parameter by calling the LBaseFile::GetFilterInfo.
#include "ltwrappr.h"
static L_INT LBaseFile::FreeFilterInfo(pFilterInfo, uFilterCount, uFlags)
Pointer to FILTERINFO structure to be freed. This parameter cannot be NULL. This pointer points either to an array of information for all filters obtained by LBaseFile::GetFilterListInfo; or points to information of a specific filter obtained by LBaseFile::GetFilterInfo.
Value that represents the number of elements of the pFilterInfo parameter. Possible values are:
Value | Meaning |
---|---|
1 | Free only the memory stored inside the pFilterInfo parameter obtained by the LBaseFile::GetFilterInfo. |
>1 | Free the memory allocated in the array of information for all filters obtained in the ppFilterList parameter by calling LBaseFile::GetFilterListInfo. |
Flags that indicate whether to free the memory stored inside the pFilterInfo parameter obtained by the LBaseFile::GetFilterInfo; or free the memory allocated in the array of information for all filters obtained in the ppFilterList parameter by calling LBaseFile::GetFilterListInfo. Possible values are:
Value | Meaning |
---|---|
0 | Free the memory stored inside the pFilterInfo parameter obtained by the LBaseFile::GetFilterInfo. |
FILTERINFO_FREEALL | [0x0020] Free the memory allocated in the array of information for all filters obtained in the ppFilterList parameter by calling LBaseFile::GetFilterListInfo. |
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
To free the memory allocated in the array of information for all filters obtained in the ppFilterList parameter by calling LBaseFile::GetFilterListInfo, call this function as the following:
LBaseFile::FreeFilterInfo(pFilterInfo, uFilterCount, FILTERINFO_FREEALL);
The number of elements in the array can be obtained in the pFilterCount parameter of the LBaseFile::GetFilterListInfo.
To free the memory stored inside the pFilterInfo parameter obtained by the LBaseFile::GetFilterInfo, call this function as the following:
LBaseFile::FreeFilterInfo(pFilterInfo, 1, 0);
For an example, refer to LBaseFile::GetFilterListInfo.
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