/* _win_switch_out:
* Puts the library in the background.
*/
void _win_switch_out(void)
{
int mode;
_TRACE(PREFIX_I "switch out\n");
_win_app_foreground = FALSE;
key_dinput_unacquire();
mouse_dinput_unacquire();
joystick_dinput_unacquire();
midi_switch_out();
if (win_gfx_driver && win_gfx_driver->switch_out)
win_gfx_driver->switch_out();
/* handle switch modes */
mode = get_display_switch_mode();
if ((mode == SWITCH_AMNESIA) || (mode == SWITCH_PAUSE)) {
_TRACE(PREFIX_I "AMNESIA or PAUSE mode suspension\n");
ResetEvent(foreground_event);
/* if the thread doesn't stop, lower its priority only if another window is active */
allegro_thread_priority = GetThreadPriority(allegro_thread);
if ((HINSTANCE)GetWindowLong(GetForegroundWindow(), GWL_HINSTANCE) != allegro_inst)
SetThreadPriority(allegro_thread, THREAD_PRIORITY_LOWEST);
}
_switch_out();
}
/* mouse_dinput_grab: [window thread]
* Grabs the mouse device.
*/
int mouse_dinput_grab(void)
{
HRESULT hr;
DWORD level;
HWND allegro_wnd = win_get_window();
if (mouse_dinput_device) {
/* necessary in order to set the cooperative level */
mouse_dinput_unacquire();
if (gfx_driver && !gfx_driver->windowed) {
level = DISCL_FOREGROUND | DISCL_EXCLUSIVE;
_TRACE(PREFIX_I "foreground exclusive cooperative level requested for mouse\n");
}
else {
level = DISCL_FOREGROUND | DISCL_NONEXCLUSIVE;
_TRACE(PREFIX_I "foreground non-exclusive cooperative level requested for mouse\n");
}
/* set cooperative level */
hr = IDirectInputDevice_SetCooperativeLevel(mouse_dinput_device, allegro_wnd, level);
if (FAILED(hr)) {
_TRACE(PREFIX_E "set cooperative level failed: %s\n", dinput_err_str(hr));
return -1;
}
mouse_dinput_acquire();
/* update the system cursor */
mouse_set_syscursor();
return 0;
}
else {
/* update the system cursor */
mouse_set_syscursor();
return -1;
}
}