#include "ltmm.h"
C Syntax |
HRESULT IltmmTargetFormat_HasCacheDialog(pTargetFormat, Dialog, pHasDialog) |
C++ Syntax |
HRESULT HasCacheDialog(Dialog, pHasDialog) |
IltmmTargetFormat * pTargetFormat; |
pointer to an interface |
long Dialog; |
dialog to show |
VARIANT_BOOL * pHasDialog; |
pointer to a variable |
Queries whether the specified property dialog for the caching filter is available.
Parameter | Description | |
pTargetFormat | Pointer to the IltmmTargetFormat interface that references the target format object. | |
Dialog | Value that specifies which dialog to display. Must be one of the ltmmTargetFormat_Dlg Constants. | |
pHasDialog | Pointer to a variable to be updated with a value that indicates whether the specified property dialog is available. Possible values are: | |
Value | Meaning | |
VARIANT_TRUE | The dialog is available. | |
VARIANT_FALSE | The dialog is not available. |
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 caching filters. It returns the value that was set using the IltmmTargetFormat::put_UserFilterCache. 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::ShowCacheDialog function 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
LTMM For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64
For a C example, refer to IltmmTargetFormat::CreateTargetFormats
For a C++ example, refer to IltmmTargetFormat::CreateTargetFormats
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