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windisplay: Support horizontal scroll wheel

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rdb 2022-01-04 10:09:36 +01:00
parent e3a49050a0
commit 08628dc97e
1 changed files with 29 additions and 0 deletions
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29
panda/src/windisplay/winGraphicsWindow.cxx
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@ -33,6 +33,10 @@
#define WM_TOUCH 0x0240
#endif
#ifndef WM_MOUSEHWHEEL
#define WM_MOUSEHWHEEL 0x020E
#endif
#if WINVER < 0x0601
// Not used on Windows XP, but we still need to define it.
#define TOUCH_COORD_TO_PIXEL(l) ((l) / 100)
@ -1725,6 +1729,31 @@ window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
}
break;
case WM_MOUSEHWHEEL:
{
int delta = GET_WHEEL_DELTA_WPARAM(wparam);
POINT point;
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
double time = get_message_time();
if (delta >= 0) {
while (delta > 0) {
handle_keypress(MouseButton::wheel_right(), point.x, point.y, time);
handle_keyrelease(MouseButton::wheel_right(), time);
delta -= WHEEL_DELTA;
}
} else {
while (delta < 0) {
handle_keypress(MouseButton::wheel_left(), point.x, point.y, time);
handle_keyrelease(MouseButton::wheel_left(), time);
delta += WHEEL_DELTA;
}
}
return 0;
}
break;
case WM_IME_SETCONTEXT:
if (!ime_hide)