| Microsoft DirectX 8.1 (C++) | 
Contains type-specific information for effects that are marked as DIEFT_CONSTANTFORCE.
The structure describes a constant force effect.
A pointer to a single DICONSTANTFORCE structure for an effect is passed in the lpvTypeSpecificParams member of the DIEFFECT structure.
typedef struct DICONSTANTFORCE { 
    LONG lMagnitude; 
} DICONSTANTFORCE, *LPDICONSTANTFORCE; 
 
typedef const DICONSTANTFORCE *LPCDICONSTANTFORCE;
  Windows NT/2000/XP: Requires Windows 2000.
  Windows 98/Me: Requires Windows 98 or later. Available as a redistributable for Windows 98.
  Header: Declared in Dinput.h.