HRESULT GetGroupName(DPPID idGroup,
LPVOID lpData, LPDWORD lpdwDataSize);
Returns the name associated with a group.
·Returns DP_OK if successful, or one of the following error values otherwise:
idGroup
ID of the group whose name is being requested.
lpData
Address of a buffer where the name data is to be written. Set this parameter to NULL to request only the size of data. lpdwDataSize will be set to the size required to hold the data.
lpdwDataSize
Address of a variable that is initialized to the size of the buffer before calling the method. After the method returns, this parameter will be set to the size, in bytes, of the name data. If the buffer was too small (DPERR_BUFFERTOOSMALL), then this parameter will be set to the buffer size that is required.
After the function returns, the pointer lpData should be cast to the DPNAME structure to read the group name data.