IltmmTargetFormat::get_UseFilterCache

Summary

Queries whether the toolkit is currently caching filters.

Syntax

#include "ltmm.h"

Language Syntax
C HRESULT IltmmTargetFormat_get_UseFilterCache(pTargetFormat, pVal)
C++ HRESULT get_UseFilterCache(pVal)

Parameters

IltmmTargetFormat *pTargetFormat

Pointer to the IltmmTargetFormat interface that references the target format object.

VARIANT_BOOL *pVal

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.

Returns

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.

Comments

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.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

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