IDVDROM::ReadVMGI (Windows Embedded CE 6.0)
1/6/2010
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.
Syntax
HRESULT ReadVMGI
UINT32* 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 Value
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
| Header | dvdata.h, dvdata.idl |
| Library | Ddvdids.lib |
| Windows Embedded CE | Windows CE .NET 4.0 and later |