static LRESULT CALLBACK window_callback(HWND hWnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
ALLEGRO_DISPLAY *d = NULL;
ALLEGRO_DISPLAY_WIN *win_display = NULL;
unsigned int i;
ALLEGRO_EVENT_SOURCE *es = NULL;
ALLEGRO_SYSTEM *system = al_get_system_driver();
if (message == _al_win_msg_call_proc) {
((void (*)(void*))wParam) ((void*)lParam);
return 0;
}
if (!system) {
return DefWindowProc(hWnd,message,wParam,lParam);
}
if (message == _al_win_msg_suicide && wParam) {
win_display = (ALLEGRO_DISPLAY_WIN*)wParam;
break_window_message_pump(win_display, hWnd);
DestroyWindow(hWnd);
return 0;
}
for (i = 0; i < system->displays._size; i++) {
ALLEGRO_DISPLAY **dptr = _al_vector_ref(&system->displays, i);
d = *dptr;
win_display = (void*)d;
if (win_display->window == hWnd) {
es = &d->es;
break;
}
}
if (i == system->displays._size)
return DefWindowProc(hWnd,message,wParam,lParam);
if (message == _al_win_msg_suicide) {
break_window_message_pump(win_display, hWnd);
DestroyWindow(hWnd);
return 0;
}
switch (message) {
case WM_INPUT:
{
/* RAW Input is currently unused. */
UINT dwSize;
LPBYTE lpb;
RAWINPUT* raw;
/* We can't uninstall WM_INPUT mesages. */
if (!al_is_mouse_installed())
break;
GetRawInputData((HRAWINPUT)lParam, RID_INPUT, NULL, &dwSize,
sizeof(RAWINPUTHEADER));
lpb = al_malloc(sizeof(BYTE)*dwSize);
if (lpb == NULL)
break;
GetRawInputData((HRAWINPUT)lParam, RID_INPUT, lpb, &dwSize, sizeof(RAWINPUTHEADER));
raw = (RAWINPUT*)lpb;
if (raw->header.dwType != RIM_TYPEMOUSE) {
al_free(lpb);
break;
}
{
RAWMOUSE *rm = &raw->data.mouse;
int x = raw->data.mouse.lLastX;
int y = raw->data.mouse.lLastY;
bool abs = (rm->usFlags & (MOUSE_MOVE_ABSOLUTE
| MOUSE_VIRTUAL_DESKTOP)) != 0;
if (abs || x || y)
_al_win_mouse_handle_move(x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_1_DOWN)
_al_win_mouse_handle_button(1, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_1_UP)
_al_win_mouse_handle_button(1, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_2_DOWN)
_al_win_mouse_handle_button(2, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_2_UP)
_al_win_mouse_handle_button(2, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_3_DOWN)
_al_win_mouse_handle_button(3, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_3_UP)
_al_win_mouse_handle_button(3, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_4_DOWN)
_al_win_mouse_handle_button(4, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_4_UP)
_al_win_mouse_handle_button(4, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_5_DOWN)
_al_win_mouse_handle_button(5, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_5_UP)
_al_win_mouse_handle_button(5, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_WHEEL) {
SHORT z = (SHORT)rm->usButtonData;
_al_win_mouse_handle_wheel(z / WHEEL_DELTA, false, win_display);
}
}
al_free(lpb);
break;
}
case WM_LBUTTONDOWN:
case WM_LBUTTONUP: {
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
bool down = (message == WM_LBUTTONDOWN);
_al_win_mouse_handle_button(1, down, mx, my, true, win_display);
handle_mouse_capture(down, hWnd);
break;
}
case WM_MBUTTONDOWN:
case WM_MBUTTONUP: {
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
bool down = (message == WM_MBUTTONDOWN);
_al_win_mouse_handle_button(3, down, mx, my, true, win_display);
handle_mouse_capture(down, hWnd);
break;
}
case WM_RBUTTONDOWN:
case WM_RBUTTONUP: {
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
bool down = (message == WM_RBUTTONDOWN);
_al_win_mouse_handle_button(2, down, mx, my, true, win_display);
handle_mouse_capture(down, hWnd);
break;
}
case WM_XBUTTONDOWN:
case WM_XBUTTONUP: {
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
int button = HIWORD(wParam);
bool down = (message == WM_XBUTTONDOWN);
if (button == XBUTTON1)
_al_win_mouse_handle_button(4, down, mx, my, true, win_display);
else if (button == XBUTTON2)
_al_win_mouse_handle_button(5, down, mx, my, true, win_display);
handle_mouse_capture(down, hWnd);
return TRUE;
}
case WM_MOUSEWHEEL: {
int d = GET_WHEEL_DELTA_WPARAM(wParam);
_al_win_mouse_handle_wheel(d / WHEEL_DELTA, false, win_display);
return TRUE;
}
case WM_MOUSEHWHEEL: {
int d = GET_WHEEL_DELTA_WPARAM(wParam);
_al_win_mouse_handle_hwheel(d / WHEEL_DELTA, false, win_display);
return TRUE;
}
case WM_MOUSEMOVE: {
TRACKMOUSEEVENT tme;
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
if (win_display->mouse_cursor_shown && we_hid_the_mouse) {
we_hid_the_mouse = false;
win_display->display.vt->hide_mouse_cursor((void*)win_display);
}
_al_win_mouse_handle_move(mx, my, true, win_display);
if (mx >= 0 && my >= 0 && mx < d->w && my < d->h) {
tme.cbSize = sizeof(tme);
tme.dwFlags = TME_QUERY;
if (TrackMouseEvent(&tme) && !tme.hwndTrack) {
tme.dwFlags = TME_LEAVE;
tme.hwndTrack = hWnd;
tme.dwHoverTime = 0;
TrackMouseEvent(&tme);
_al_win_mouse_handle_enter(win_display);
}
}
/* WM_SETCURSOR messages are not received while the mouse is
* captured. We call SetCursor here so that changing the mouse
* cursor has an effect while the user is holding down the mouse
* button.
*/
if (GetCapture() == hWnd && win_display->mouse_cursor_shown) {
SetCursor(win_display->mouse_selected_hcursor);
}
break;
}
case WM_MOUSELEAVE: {
_al_win_mouse_handle_leave(win_display);
break;
}
case WM_CAPTURECHANGED: {
if (al_is_mouse_installed()) {
int i;
ALLEGRO_MOUSE_STATE state;
if (!lParam || (HWND)lParam == hWnd)
break;
al_get_mouse_state(&state);
for (i = 1; i <= 5; i++) {
if (al_mouse_button_down(&state, i))
_al_win_mouse_handle_button(i, 0, 0, 0, true, win_display);
}
}
break;
}
case WM_NCMOUSEMOVE: {
if (!win_display->mouse_cursor_shown) {
we_hid_the_mouse = true;
win_display->display.vt->show_mouse_cursor((void*)win_display);
}
break;
}
case WM_SYSKEYDOWN: {
int vcode = wParam;
bool extended = (lParam >> 24) & 0x1;
bool repeated = (lParam >> 30) & 0x1;
_al_win_kbd_handle_key_press(0, vcode, extended, repeated, win_display);
break;
}
case WM_KEYDOWN: {
int vcode = wParam;
int scode = (lParam >> 16) & 0xff;
bool extended = (lParam >> 24) & 0x1;
bool repeated = (lParam >> 30) & 0x1;
/* We can't use TranslateMessage() because we don't know if it will
produce a WM_CHAR or not. */
_al_win_kbd_handle_key_press(scode, vcode, extended, repeated, win_display);
break;
}
case WM_SYSKEYUP:
case WM_KEYUP: {
int vcode = wParam;
int scode = (lParam >> 16) & 0xff;
bool extended = (lParam >> 24) & 0x1;
_al_win_kbd_handle_key_release(scode, vcode, extended, win_display);
break;
}
case WM_SYSCOMMAND: {
if (_al_win_disable_screensaver &&
((wParam & 0xfff0) == SC_MONITORPOWER || (wParam & 0xfff0) == SC_SCREENSAVE)) {
return 0;
}
else if ((wParam & 0xfff0) == SC_KEYMENU) {
/* Prevent Windows from intercepting the ALT key.
(Disables opening menus via the ALT key.) */
return 0;
}
break;
}
case WM_PAINT: {
if (win_display->display.flags & ALLEGRO_GENERATE_EXPOSE_EVENTS) {
RECT r;
HRGN hrgn;
GetWindowRect(win_display->window, &r);
hrgn = CreateRectRgn(r.left, r.top, r.right, r.bottom);
if (GetUpdateRgn(win_display->window, hrgn, false) != ERROR) {
PAINTSTRUCT ps;
DWORD size;
LPRGNDATA rgndata;
int n;
int i;
RECT *rects;
BeginPaint(win_display->window, &ps);
size = GetRegionData(hrgn, 0, NULL);
rgndata = al_malloc(size);
GetRegionData(hrgn, size, rgndata);
n = rgndata->rdh.nCount;
rects = (RECT *)rgndata->Buffer;
_al_event_source_lock(es);
if (_al_event_source_needs_to_generate_event(es)) {
ALLEGRO_EVENT event;
event.display.type = ALLEGRO_EVENT_DISPLAY_EXPOSE;
event.display.timestamp = al_get_time();
for (i = 0; i < n; i++) {
event.display.x = rects[i].left;
event.display.y = rects[i].top;
event.display.width = rects[i].right - rects[i].left;
event.display.height = rects[i].bottom - rects[i].top;
_al_event_source_emit_event(es, &event);
}
}
_al_event_source_unlock(es);
al_free(rgndata);
EndPaint(win_display->window, &ps);
DeleteObject(hrgn);
}
return 0;
}
break;
}
case WM_SETCURSOR:
switch (LOWORD(lParam)) {
case HTLEFT:
case HTRIGHT:
SetCursor(LoadCursor(NULL, IDC_SIZEWE));
break;
case HTBOTTOM:
case HTTOP:
SetCursor(LoadCursor(NULL, IDC_SIZENS));
break;
case HTBOTTOMLEFT:
case HTTOPRIGHT:
SetCursor(LoadCursor(NULL, IDC_SIZENESW));
break;
case HTBOTTOMRIGHT:
case HTTOPLEFT:
SetCursor(LoadCursor(NULL, IDC_SIZENWSE));
break;
default:
if (win_display->mouse_cursor_shown) {
SetCursor(win_display->mouse_selected_hcursor);
}
else {
SetCursor(NULL);
}
break;
}
return 1;
case WM_ACTIVATE:
if (HIWORD(wParam) && LOWORD(wParam) != WA_INACTIVE)
break;
if (HIWORD(wParam))
d->flags |= ALLEGRO_MINIMIZED;
else
d->flags &= ~ALLEGRO_MINIMIZED;
if (LOWORD(wParam) != WA_INACTIVE) {
// Make fullscreen windows TOPMOST again
if (d->flags & ALLEGRO_FULLSCREEN_WINDOW) {
SetWindowPos(win_display->window, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
}
if (d->vt->switch_in)
d->vt->switch_in(d);
_al_win_fix_modifiers();
_al_event_source_lock(es);
if (_al_event_source_needs_to_generate_event(es)) {
ALLEGRO_EVENT event;
memset(&event, 0, sizeof(event));
event.display.type = ALLEGRO_EVENT_DISPLAY_SWITCH_IN;
event.display.timestamp = al_get_time();
_al_event_source_emit_event(es, &event);
}
_al_event_source_unlock(es);
_al_win_grab_input(win_display);
return 0;
}
else {
// Remove TOPMOST flag from fullscreen windows so we can alt-tab. Also must raise the new activated window
if (d->flags & ALLEGRO_FULLSCREEN_WINDOW) {
SetWindowPos(win_display->window, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
SetWindowPos(GetForegroundWindow(), HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
}
// Show the taskbar in case we hid it
SetWindowPos(FindWindow("Shell_traywnd", ""), 0, 0, 0, 0, 0, SWP_SHOWWINDOW);
if (d->flags & ALLEGRO_FULLSCREEN) {
d->vt->switch_out(d);
}
_al_event_source_lock(es);
if (_al_event_source_needs_to_generate_event(es)) {
ALLEGRO_EVENT event;
memset(&event, 0, sizeof(event));
event.display.type = ALLEGRO_EVENT_DISPLAY_SWITCH_OUT;
event.display.timestamp = al_get_time();
_al_event_source_emit_event(es, &event);
}
_al_event_source_unlock(es);
return 0;
}
break;
case WM_MENUCHAR :
return (MNC_CLOSE << 16) | (wParam & 0xffff);
case WM_CLOSE:
_al_event_source_lock(es);
if (_al_event_source_needs_to_generate_event(es)) {
ALLEGRO_EVENT event;
memset(&event, 0, sizeof(event));
event.display.type = ALLEGRO_EVENT_DISPLAY_CLOSE;
event.display.timestamp = al_get_time();
_al_event_source_emit_event(es, &event);
}
_al_event_source_unlock(es);
return 0;
case WM_SIZE:
if (wParam == SIZE_RESTORED || wParam == SIZE_MAXIMIZED || wParam == SIZE_MINIMIZED) {
/*
* Delay the resize event so we don't get bogged down with them
*/
if (!resize_postponed) {
resize_postponed = true;
_beginthread(postpone_thread_proc, 0, (void *)d);
}
}
return 0;
case WM_ENTERSIZEMOVE:
/* DefWindowProc for WM_ENTERSIZEMOVE enters a modal loop, which also
* ends up blocking the loop in d3d_display_thread_proc (which is
* where we are called from, if using D3D). Rather than batching up
* intermediate resize events which the user cannot acknowledge in the
* meantime anyway, make it so only a single resize event is generated
* at WM_EXITSIZEMOVE.
*/
if (d->flags & ALLEGRO_DIRECT3D) {
resize_postponed = true;
}
break;
case WM_EXITSIZEMOVE:
if (resize_postponed) {
win_generate_resize_event(win_display);
win_display->ignore_resize = false;
resize_postponed = false;
win_display->can_acknowledge = true;
}
break;
}
return DefWindowProc(hWnd,message,wParam,lParam);
}
static LRESULT CALLBACK window_callback(HWND hWnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
ALLEGRO_DISPLAY *d = NULL;
ALLEGRO_DISPLAY_WIN *win_display = NULL;
WINDOWINFO wi;
int w;
int h;
int x;
int y;
unsigned int i;
ALLEGRO_EVENT_SOURCE *es = NULL;
ALLEGRO_SYSTEM *system = al_get_system_driver();
wi.cbSize = sizeof(WINDOWINFO);
if (message == _al_win_msg_call_proc) {
((void (*)(void*))wParam) ((void*)lParam);
return 0;
}
if (!system) {
return DefWindowProc(hWnd,message,wParam,lParam);
}
if (message == _al_win_msg_suicide && wParam) {
win_display = (ALLEGRO_DISPLAY_WIN*)wParam;
win_display->end_thread = true;
DestroyWindow(hWnd);
return 0;
}
for (i = 0; i < system->displays._size; i++) {
ALLEGRO_DISPLAY **dptr = _al_vector_ref(&system->displays, i);
d = *dptr;
win_display = (void*)d;
if (win_display->window == hWnd) {
es = &d->es;
break;
}
}
if (i == system->displays._size)
return DefWindowProc(hWnd,message,wParam,lParam);
if (message == _al_win_msg_suicide) {
win_display->end_thread = true;
DestroyWindow(hWnd);
return 0;
}
switch (message) {
case WM_INPUT:
{
UINT dwSize;
LPBYTE lpb;
RAWINPUT* raw;
/* We can't uninstall WM_INPUT mesages. */
if (!al_is_mouse_installed())
break;
GetRawInputData((HRAWINPUT)lParam, RID_INPUT, NULL, &dwSize,
sizeof(RAWINPUTHEADER));
lpb = malloc(sizeof(BYTE)*dwSize);
if (lpb == NULL)
break;
GetRawInputData((HRAWINPUT)lParam, RID_INPUT, lpb, &dwSize, sizeof(RAWINPUTHEADER));
raw = (RAWINPUT*)lpb;
if (raw->header.dwType != RIM_TYPEMOUSE) {
free(lpb);
break;
}
{
RAWMOUSE *rm = &raw->data.mouse;
int x = raw->data.mouse.lLastX;
int y = raw->data.mouse.lLastY;
bool abs = rm->usFlags & (MOUSE_MOVE_ABSOLUTE
|| MOUSE_VIRTUAL_DESKTOP);
if (abs || x || y)
_al_win_mouse_handle_move(x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_1_DOWN)
_al_win_mouse_handle_button(1, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_1_UP)
_al_win_mouse_handle_button(1, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_2_DOWN)
_al_win_mouse_handle_button(2, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_2_UP)
_al_win_mouse_handle_button(2, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_3_DOWN)
_al_win_mouse_handle_button(3, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_3_UP)
_al_win_mouse_handle_button(3, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_4_DOWN)
_al_win_mouse_handle_button(4, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_4_UP)
_al_win_mouse_handle_button(4, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_5_DOWN)
_al_win_mouse_handle_button(5, true, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_BUTTON_5_UP)
_al_win_mouse_handle_button(5, false, x, y, abs, win_display);
if (rm->usButtonFlags & RI_MOUSE_WHEEL) {
SHORT z = (SHORT)rm->usButtonData;
_al_win_mouse_handle_wheel(z / WHEEL_DELTA, false, win_display);
}
}
free(lpb);
break;
}
case WM_LBUTTONDOWN:
case WM_LBUTTONUP: {
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
bool down = (message == WM_LBUTTONDOWN);
_al_win_mouse_handle_button(1, down, mx, my, true, win_display);
handle_mouse_capture(down, hWnd);
break;
}
case WM_MBUTTONDOWN:
case WM_MBUTTONUP: {
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
bool down = (message == WM_MBUTTONDOWN);
_al_win_mouse_handle_button(3, down, mx, my, true, win_display);
handle_mouse_capture(down, hWnd);
break;
}
case WM_RBUTTONDOWN:
case WM_RBUTTONUP: {
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
bool down = (message == WM_RBUTTONDOWN);
_al_win_mouse_handle_button(2, down, mx, my, true, win_display);
handle_mouse_capture(down, hWnd);
break;
}
case WM_XBUTTONDOWN:
case WM_XBUTTONUP: {
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
int button = HIWORD(wParam);
bool down = (message == WM_XBUTTONDOWN);
if (button == XBUTTON1)
_al_win_mouse_handle_button(4, down, mx, my, true, win_display);
else if (button == XBUTTON2)
_al_win_mouse_handle_button(5, down, mx, my, true, win_display);
handle_mouse_capture(down, hWnd);
return TRUE;
}
case WM_MOUSEWHEEL: {
int d = GET_WHEEL_DELTA_WPARAM(wParam);
_al_win_mouse_handle_wheel(d / WHEEL_DELTA, false, win_display);
return TRUE;
}
case WM_MOUSEMOVE: {
TRACKMOUSEEVENT tme;
int mx = GET_X_LPARAM(lParam);
int my = GET_Y_LPARAM(lParam);
if (win_display->mouse_cursor_shown && we_hid_the_mouse) {
we_hid_the_mouse = false;
win_display->display.vt->hide_mouse_cursor((void*)win_display);
}
_al_win_mouse_handle_move(mx, my, true, win_display);
if (mx >= 0 && my >= 0 && mx < d->w && my < d->h) {
tme.cbSize = sizeof(tme);
tme.dwFlags = TME_QUERY;
if (TrackMouseEvent(&tme) && !tme.hwndTrack) {
tme.dwFlags = TME_LEAVE;
tme.hwndTrack = hWnd;
tme.dwHoverTime = 0;
TrackMouseEvent(&tme);
_al_win_mouse_handle_enter(win_display);
}
}
break;
}
case WM_MOUSELEAVE: {
_al_win_mouse_handle_leave(win_display);
break;
}
case WM_CAPTURECHANGED: if (al_is_mouse_installed()) {
int i;
ALLEGRO_MOUSE_STATE state;
if (!lParam || (HWND)lParam == hWnd)
break;
al_get_mouse_state(&state);
for (i = 1; i <= 5; i++) {
if (al_mouse_button_down(&state, i))
_al_win_mouse_handle_button(i, 0, 0, 0, true, win_display);
}
break;
}
case WM_NCMOUSEMOVE: {
if (!win_display->mouse_cursor_shown) {
we_hid_the_mouse = true;
win_display->display.vt->show_mouse_cursor((void*)win_display);
}
break;
}
case WM_SYSKEYDOWN: {
int vcode = wParam;
bool repeated = (lParam >> 30) & 0x1;
_al_win_kbd_handle_key_press(0, vcode, repeated, win_display);
break;
}
case WM_KEYDOWN: {
int vcode = wParam;
int scode = (lParam >> 16) & 0xff;
bool repeated = (lParam >> 30) & 0x1;
/* We can't use TranslateMessage() because we don't know if it will
produce a WM_CHAR or not. */
_al_win_kbd_handle_key_press(scode, vcode, repeated, win_display);
break;
}
case WM_SYSKEYUP:
case WM_KEYUP: {
int vcode = wParam;
_al_win_kbd_handle_key_release(vcode, win_display);
break;
}
case WM_SYSCOMMAND: {
if (_al_win_disable_screensaver &&
((wParam & 0xfff0) == SC_MONITORPOWER || (wParam & 0xfff0) == SC_SCREENSAVE)) {
return 0;
}
else if ((wParam & 0xfff0) == SC_KEYMENU) {
/* Prevent Windows from intercepting the ALT key.
(Disables opening menus via the ALT key.) */
return 0;
}
break;
}
case WM_PAINT: {
if ((win_display->display.flags & ALLEGRO_GENERATE_EXPOSE_EVENTS) &&
_al_event_source_needs_to_generate_event(es)) {
RECT r;
HRGN hrgn;
GetWindowRect(win_display->window, &r);
hrgn = CreateRectRgn(r.left, r.top, r.right, r.bottom);
if (GetUpdateRgn(win_display->window, hrgn, false) != ERROR) {
PAINTSTRUCT ps;
DWORD size;
LPRGNDATA rgndata;
int n;
int i;
RECT *rects;
BeginPaint(win_display->window, &ps);
size = GetRegionData(hrgn, 0, NULL);
rgndata = _AL_MALLOC(size);
GetRegionData(hrgn, size, rgndata);
n = rgndata->rdh.nCount;
rects = (RECT *)rgndata->Buffer;
//GetWindowInfo(win_display->window, &wi);
_al_event_source_lock(es);
for (i = 0; i < n; i++) {
ALLEGRO_EVENT event;
event.display.type = ALLEGRO_EVENT_DISPLAY_EXPOSE;
event.display.timestamp = al_current_time();
event.display.x = rects[i].left;
event.display.y = rects[i].top;
event.display.width = rects[i].right - rects[i].left;
event.display.height = rects[i].bottom - rects[i].top;
_al_event_source_emit_event(es, &event);
}
_al_event_source_unlock(es);
_AL_FREE(rgndata);
EndPaint(win_display->window, &ps);
DeleteObject(hrgn);
}
return 0;
}
break;
}
case WM_SETCURSOR:
switch (LOWORD(lParam)) {
case HTLEFT:
case HTRIGHT:
SetCursor(LoadCursor(NULL, IDC_SIZEWE));
break;
case HTBOTTOM:
case HTTOP:
SetCursor(LoadCursor(NULL, IDC_SIZENS));
break;
case HTBOTTOMLEFT:
case HTTOPRIGHT:
SetCursor(LoadCursor(NULL, IDC_SIZENESW));
break;
case HTBOTTOMRIGHT:
case HTTOPLEFT:
SetCursor(LoadCursor(NULL, IDC_SIZENWSE));
break;
default:
if (win_display->mouse_cursor_shown) {
SetCursor(win_display->mouse_selected_hcursor);
}
else {
SetCursor(NULL);
}
break;
}
return 1;
case WM_ACTIVATE:
if (LOWORD(wParam) != WA_INACTIVE) {
/* This SetWindowPos is for faux-fullscreen windows that lost focus
* so they can get placed back on top
*/
// FIXME: this doesn't seem to work
//SetWindowPos(win_display->window, HWND_TOP, 0, 0, 0, 0,
// SWP_NOMOVE | SWP_NOSIZE);
if (d->vt->switch_in)
d->vt->switch_in(d);
_al_event_source_lock(es);
if (_al_event_source_needs_to_generate_event(es)) {
ALLEGRO_EVENT event;
event.display.type = ALLEGRO_EVENT_DISPLAY_SWITCH_IN;
event.display.timestamp = al_current_time();
_al_event_source_emit_event(es, &event);
}
_al_event_source_unlock(es);
_al_win_grab_input(win_display);
return 0;
}
else {
if (d->flags & ALLEGRO_FULLSCREEN) {
d->vt->switch_out(d);
}
_al_event_source_lock(es);
if (_al_event_source_needs_to_generate_event(es)) {
ALLEGRO_EVENT event;
event.display.type = ALLEGRO_EVENT_DISPLAY_SWITCH_OUT;
event.display.timestamp = al_current_time();
_al_event_source_emit_event(es, &event);
}
_al_event_source_unlock(es);
return 0;
}
break;
case WM_MENUCHAR :
return (MNC_CLOSE << 16) | (wParam & 0xffff);
case WM_CLOSE:
_al_event_source_lock(es);
if (_al_event_source_needs_to_generate_event(es)) {
ALLEGRO_EVENT event;
event.display.type = ALLEGRO_EVENT_DISPLAY_CLOSE;
event.display.timestamp = al_current_time();
_al_event_source_emit_event(es, &event);
}
_al_event_source_unlock(es);
return 0;
case WM_SIZE:
if (wParam == SIZE_RESTORED || wParam == SIZE_MAXIMIZED || wParam == SIZE_MINIMIZED) {
/*
* Delay the resize event so we don't get bogged down with them
*/
if (!resize_postponed) {
resize_postponed = true;
postpone_resize(win_display->window);
}
}
return 0;
case WM_USER+0:
/* Generate a resize event if the size has changed. We cannot asynchronously
* change the display size here yet, since the user will only know about a
* changed size after receiving the resize event. Here we merely add the
* event to the queue.
*/
GetWindowInfo(win_display->window, &wi);
x = wi.rcClient.left;
y = wi.rcClient.top;
w = wi.rcClient.right - wi.rcClient.left;
h = wi.rcClient.bottom - wi.rcClient.top;
if (d->w != w || d->h != h) {
_al_event_source_lock(es);
if (_al_event_source_needs_to_generate_event(es)) {
ALLEGRO_EVENT event;
event.display.type = ALLEGRO_EVENT_DISPLAY_RESIZE;
event.display.timestamp = al_current_time();
event.display.x = x;
event.display.y = y;
event.display.width = w;
event.display.height = h;
_al_event_source_emit_event(es, &event);
}
/* Generate an expose event. */
if (_al_event_source_needs_to_generate_event(es)) {
ALLEGRO_EVENT event;
event.display.type = ALLEGRO_EVENT_DISPLAY_EXPOSE;
event.display.timestamp = al_current_time();
event.display.x = x;
event.display.y = y;
event.display.width = w;
event.display.height = h;
_al_event_source_emit_event(es, &event);
}
_al_event_source_unlock(es);
}
resize_postponed = false;
win_display->can_acknowledge = true;
return 0;
}
return DefWindowProc(hWnd,message,wParam,lParam);
}
