Activates the selected menu button.
#include "ltmm.h"  
| Language | Syntax | 
|---|---|
| C | HRESULT IltmmDVDControl_ActivateButton(pDVD) | 
| C++ | HRESULT ActivateButton() | 
Pointer to an IltmmDVDControl interface.
| Value | Meaning | 
|---|---|
| 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. | 
The button activated by this method must first be selected using one of the following functions:
For more detailed information, refer to the Microsoft documentation for IDvdControl2::ActivateButton.
Win32, x64.
| Language | Syntax | 
|---|---|
| C | IltmmDVDControl::GetButtonAtPosition | 
| C++ | IltmmDVDControl::GetButtonAtPosition | 
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