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[win] Track mouse leaving the window

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This fixes the incorrect mouse deltas experienced when looping the mouse
cursor through and around the window.
This commit is contained in:
Bill Currie 2023-11-25 21:05:37 +09:00
parent 30489e1812
commit c110119196
2 changed files with 25 additions and 7 deletions
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3
libs/video/targets/context_win.c
View file

@ -321,9 +321,6 @@ Win_RemoveEvent (UINT event)
static LONG WINAPI
Win_EventHandler (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
if (uMsg == uiWheelMessage) {
uMsg = WM_MOUSEWHEEL;
}
if (uMsg < WM_USER && event_handlers[uMsg]) {
return event_handlers[uMsg] (hWnd, uMsg, wParam, lParam);
}

29
libs/video/targets/in_win.c
View file

@ -100,6 +100,7 @@ static int in_mouse_avail;
static int win_driver_handle = -1;
static in_buttoninfo_t win_key_buttons[512];
static int win_key_scancode;
static bool win_mouse_enter = true;
static in_axisinfo_t win_mouse_axes[2];
static in_buttoninfo_t win_mouse_buttons[WIN_MOUSE_BUTTONS];
static const char *win_mouse_axis_names[] = {"M_X", "M_Y"};
@ -525,8 +526,6 @@ win_add_device (win_device_t *dev)
static void
in_win_init (void *data)
{
uiWheelMessage = RegisterWindowMessage ("MSWHEEL_ROLLMSG");
win_add_device (&win_keyboard_device);
win_add_device (&win_mouse_device);
@ -943,6 +942,13 @@ in_win_send_focus_event (int gain)
IE_Send_Event (&event);
}
static LONG
event_leave (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
win_mouse_enter = true;
return 0;
}
static LONG
event_focusin (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
@ -1030,8 +1036,21 @@ event_mouse (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
// this is complicated because Win32 seems to pack multiple mouse
// events into one update sometimes, so we always check all states and
// look for events
int x = (int) LOWORD (lParam);
int y = (int) HIWORD (lParam);
int x = (short) LOWORD (lParam);
int y = (short) HIWORD (lParam);
if (win_mouse_enter) {
win_mouse_enter = false;
TRACKMOUSEEVENT track = {
.cbSize = sizeof (track),
.dwFlags = TME_LEAVE,
.hwndTrack = win_mainwindow,
};
TrackMouseEvent (&track);
win_mouse.x = x;
win_mouse.y = y;
}
win_mouse_axes[0].value = x - win_mouse.x;
win_mouse_axes[1].value = y - win_mouse.y;
@ -1085,6 +1104,8 @@ event_activate (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
void
IN_Win_Preinit (void)
{
Win_AddEvent (WM_MOUSELEAVE, event_leave);
Win_AddEvent (WM_SETFOCUS, event_focusin);
Win_AddEvent (WM_SETFOCUS, event_focusout);