Retrieves the state for a specified group in the current list-view control.
Zero-based index of a group.
Mask that specifies the state value to retrieve for the specified group. For more information, see the mask member of the LVGROUP structure.
The return value is the result of a bitwise AND operation on the dwMask parameter and the value of the state member of an LVGROUP structure that represents the current list-view control.
This control is supported in Windows Vista and later.
Additional requirements for this method are described in Build Requirements for Windows Vista Common Controls.