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This method returns the video manager information (VMGI). This method is used internally by the DVD-Video API and is not generally used by applications.
HRESULT ReadVMGIUINT32* length,UINT8** bufptr,);
Parameters
- length
[out] Contains the length of the VMGI if the call succeeds. - bufptr
[out] Contains the VMGI if the call succeeds.
Return Values
If the function succeeds, the return value is S_OK.
If the method fails, the return value may be one of the following error values.
| Error value | Description |
|---|---|
| E_FAIL | The method failed. |
| E_HANDLE | The method encountered an invalid handle. |
| E_UNEXPECTED | The method encountered an unexpected error. |
| E_OUTOFMEMORY | There was not enough memory available for the operation. |
Remarks
A call to IDVDROM::ReleaseMem, passing bufptr, must be made to free the memory allocated by IDVDROM::ReadVMGI when the VGMI is no longer needed.
Requirements
OS Versions: Windows CE .NET 4.0 and later.
Header: Dvdata.h, Dvdata.idl.
Link Library: Ddvdids.lib.
See Also
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