Mouse - just like KB

To Use:

· create mouse device w/ CreateDevice()

· set cooperative level for KB – SetCooprativeLevel()

· set data format – SetDataFormat()

· acquire the KB – Acquire()

· read currect state info – GetDeviceState()

Ex:

#define INITGUID // defines kb guid

#include <OBJBASE.H>

#include <dinput.h>

…

LPDIRECTINPUTDEVICE8 lpdiMouse = NULL; // mouse ptr

If ( CreateDevice(GUID_SysMouse, &lpdiMouse, NULL) !=

DI_OK)

{/* error */}

// At this point lpdiMouse points to your mouse interface,

// set coop level

If (lpdiMouse-> SetCooperativeLevel(hwnd, DISCL_BACKGROUND | DISCL_NONEXCLUSIVE) != DD_OK) // error

// set data format

lpdikey->SetDataFormat(&c_dfDIMouse);

// acquire mouse

lpdiMouse->Acquire();

Reading the Mouse

When you’re ready to read some data from the mouse use:

// read the mouse

If (lpdiMouse->GetDeviceState(sizeof(DIMOUSESTATE, (LPVOID) mousestate) != DI_OK)

{/* error */}

where DIMOUSESTATE is:

struct DIMOUSESTATE

{ LONG lX; // x pos

LONG lY; // y pos

LONG lZ; // z pos

BYTE rgbButtons[4]; // buttons, high bit signals down

};

Ex:

DIMOUSESTATE mouseState;

if (lpdiMouse->GetDeviceState(sizeof(DIMOUSESTATE,

(LPVOID) mousestate) == DI_OK)

// mouseState.lX, lY is the current xy position

if (mouseState.rgbButtons[0] & 0X80) // left button down

if (mouseState.rgbButtons[1] & 0X80) // right button down

When done with mouse:

lpdiMouse->Unacquire();

lpdiMouse->Release();