IltmmDVDControl::get_CurrentButton

#include "ltmm.h"

C Syntax

HRESULT IltmmDVDControl__get_CurrentButton(pDVD, pButton)

C++ Syntax

HRESULT get_CurrentButton(pButton)

 

IltmmDVDControl *pDVD;

/* pointer to an interface */

long *pButton;

/* pointer to a variable */

Retrieves the currently selected button.

Parameter

Description

pDVD

Pointer to an IltmmDVDControl interface.

pButton

Pointer to a variable that is updated with the selected Button number. Possible values range from 1 to 36.

Returns

S_OK

The function ran successfully.

<> S_OK

An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

Call IltmmDVDControl::get_ButtonsAvailable to retrieve the number of available buttons.

For more detailed information, refer to the Microsoft documentation for IDvdInfo2::GetCurrentButton at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directshow/htm/idvdinfo2getcurrentbutton.asp.

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.

See Also

Elements:

IltmmDVDControl interface, IltmmDVDControl::get_CurrentDomain, IltmmDVDControl::get_CurrentTitle, IltmmDVDControl::get_CurrentChapter, IltmmDVDControl::get_CurrentDiscSide, IltmmDVDControl::get_CurrentTime, IltmmDVDControl::get_CurrentVolume, IltmmDVDControl::get_CurrentUOPS, IltmmDVDControl::get_CurrentAngle, IltmmDVDControl::get_CurrentAudioStream, IltmmDVDControl::get_CurrentSubpictureStream, IltmmDVDControl::GetButtonAtPosition, IltmmDVDControl::GetButtonTop, IltmmDVDControl::GetButtonLeft, IltmmDVDControl::GetButtonWidth, IltmmDVDControl::GetButtonHeight, IltmmDVDControl::get_ButtonsAvailable, IltmmDVDControl::ActivateAtPosition, IltmmDVDControl::ActivateButton, IltmmDVDControl::SelectAtPosition, IltmmDVDControl::SelectAndActivateButton, IltmmDVDControl::SelectButton, IltmmDVDControl::SelectRelativeButton

Topics:

Multimedia Function Group

Example

For a C example, refer to IltmmDVDControl::GetButtonAtPosition Example for C.

For a C++ example, refer to IltmmDVDControl::GetButtonAtPosition Example for C++.