bool InitJoystick (LPDIRECTINPUTDEVICE2 &pJoystick_)
{
HRESULT hr;
// Set the joystick device to use the joystick format
if (FAILED(hr = pJoystick_->SetDataFormat(&c_dfDIJoystick)))
TRACE("!!! Failed to set data format of joystick device (%#08lx)\n", hr);
else if (FAILED(hr = pJoystick_->SetCooperativeLevel(g_hwnd, DISCL_NONEXCLUSIVE | DISCL_FOREGROUND)))
TRACE("!!! Failed to set cooperative level of joystick device (%#08lx)\n", hr);
else
{
// Deadzone tolerance percentage and range of each axis (-100 to +100)
DIPROPDWORD diPdw = { { sizeof(diPdw), sizeof(diPdw.diph), 0, DIPH_BYOFFSET }, 10000UL * JOYSTICK_DEADZONE / 100UL };
DIPROPRANGE diPrg = { { sizeof(diPrg), sizeof(diPrg.diph), 0, DIPH_BYOFFSET }, -100, +100 };
int anAxes[] = { DIJOFS_X, DIJOFS_Y, DIJOFS_RX, DIJOFS_RY };
for (int i = 0 ; i < _countof(anAxes) ; i++)
{
diPdw.diph.dwObj = diPrg.diph.dwObj = anAxes[i];
if (FAILED(hr = pJoystick_->SetProperty(DIPROP_DEADZONE, &diPdw.diph)))
TRACE("!!! Failed to set joystick deadzone (%#08lx)\n", hr);
else if (FAILED(hr = pJoystick_->SetProperty(DIPROP_RANGE, &diPrg.diph)))
TRACE("!!! Failed to set joystick range (%#08lx)\n", hr);
}
return true;
}
// Clean up
pJoystick_->Release();
pJoystick_ = NULL;
return false;
}
