| Microsoft DirectX 8.1 (C++) |
The GetGlobalParam method retrieves global values from the performance.
Syntax
HRESULT GetGlobalParam(
REFGUID rguidType,
void* pParam,
DWORD dwSize
);
Parameters
rguidType
Reference to (C++) or address of (C) the identifier of the type of data.
pParam
Pointer to the allocated memory that receives a copy of the data. This must be the correct size, which is constant for each type of data. This parameter contains information that was passed in to the IDirectMusicPerformance8::SetGlobalParam method.
dwSize
Size of the data. This is constant for each rguidType.
Return Values
If the method succeeds, the return value is S_OK.
If it fails, the method can return one of the error values shown in the following table.
| Return code |
| E_INVALIDARG |
| E_POINTER |
Remarks
If SetGlobalParam has never been called for rguidType, the parameter might not be in the list of global data being handled by this performance, and the method might return E_INVALIDARG. In other words, do not assume that any parameter has a default value that can be retrieved by using GetGlobalParam.
Requirements
Header: Declared in dmusici.h.
See Also