IDvdInfo2::GetCurrentButton
Microsoft DirectShow 9.0 |
IDvdInfo2::GetCurrentButton
The GetCurrentButton method retrieves the number of available buttons and the number of the currently selected button.
Syntax
HRESULT GetCurrentButton( ULONG *pulButtonsAvailable, ULONG *pulCurrentButton );
Parameters
pulButtonsAvailable
[out] Pointer to a variable of type ULONG that receives the number of buttons available.
pulCurrentButton
[out] Pointer to a variable of type ULONG that receives the number (from 1 through 36) of the currently selected button.
Return Values
Returns one of the following HRESULT values.
Return code | Description |
S_OK | Success. |
E_POINTER | One of the pointer arguments is not valid. |
Remarks
If buttons are not present, both pulButtonsAvailable and pulCurrentButton are set to zero.
Requirements
Header: Declared in Strmif.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also