Queries whether the toolkit is currently caching filters.
#include "ltmm.h"
Language | Syntax |
---|---|
C | HRESULT IltmmTargetFormat_get_UseFilterCache(pTargetFormat, pVal) |
C++ | HRESULT get_UseFilterCache(pVal) |
Pointer to the IltmmTargetFormat interface that references the target format object.
Pointer to a variable to be updated with a value that indicates whether the toolkit is caching filters. Possible values are:
Value | Meaning |
---|---|
VARIANT_TRUE | The toolkit is caching filters. |
VARIANT_FALSE | The toolkit is not caching filters. This is the default value. |
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. |
Use the IltmmTargetFormat::get_UseFilterCache function to query whether the toolkit is currently caching filters. It returns the value that was set using the IltmmTargetFormat::put_UserFilterCache function. Use the IltmmTargetFormat::put_UseFilterCache function to enable or disable caching for the target format. Use the IltmmTargetFormat::GetCacheObject function to retrieve the caching filter object. Use the IltmmTargetFormat::ShowCacheDialogfunction to display a specific property dialog for the caching filter. Use the IltmmTargetFormat::HasCacheDialog function to query whether the specified property dialog for the caching filter is available.
Win32, x64.
Language | Example |
---|---|
C | • IltmmTargetFormat::CreateTargetFormats |
• IltmmTargetFormat::put_UseFilterCache | |
C++ | • IltmmTargetFormat::CreateTargetFormats |
• IltmmTargetFormat::put_UseFilterCache |
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