References ▼
Retrieves the current DVD volume.
#include "ltmm.h"
| Language | Syntax |
|---|---|
| C | HRESULT IltmmDVDControl_get_CurrentVolume(pDVD, pVal) |
| C++ | HRESULT get_CurrentVolume(pVal) |
Pointer to an IltmmDVDControl interface.
Pointer to a variable that receives the volume number for the root directory.
| 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. |
Each DVD disc has a single volume number, assigned to it by the manufacturer, that identifies a disc's position in a multi-disc DVD set. For example, the programmer can implement code in a DVD playback routine, called when playing a multi-disc movie, that checks the DVD's volume number to ensure that the end user does not insert the discs out of order.
To retrieve other "current" information, use the following functions:
For more detailed information, refer to the Microsoft documentation for IDvdInfo2::GetDVDVolumeInfo.
Win32, x64.
| Language | Example |
|---|---|
| C | IltmmDVDControl::GetButtonAtPosition |
| C++ | IltmmDVDControl::GetButtonAtPosition |
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