+KeyMod HandleKeyModState(Key key, int key_status)
+{
+ static KeyMod current_modifiers = KMOD_None;
+
+ if (key != KSYM_UNDEFINED) /* new key => check for modifier key change */
+ {
+ KeyMod new_modifier = KMOD_None;
+
+ switch(key)
+ {
+ case KSYM_Shift_L:
+ new_modifier = KMOD_Shift_L;
+ break;
+ case KSYM_Shift_R:
+ new_modifier = KMOD_Shift_R;
+ break;
+ case KSYM_Control_L:
+ new_modifier = KMOD_Control_L;
+ break;
+ case KSYM_Control_R:
+ new_modifier = KMOD_Control_R;
+ break;
+ case KSYM_Meta_L:
+ new_modifier = KMOD_Meta_L;
+ break;
+ case KSYM_Meta_R:
+ new_modifier = KMOD_Meta_R;
+ break;
+ case KSYM_Alt_L:
+ new_modifier = KMOD_Alt_L;
+ break;
+ case KSYM_Alt_R:
+ new_modifier = KMOD_Alt_R;
+ break;
+ default:
+ break;
+ }
+
+ if (key_status == KEY_PRESSED)
+ current_modifiers |= new_modifier;
+ else
+ current_modifiers &= ~new_modifier;
+ }
+
+ return current_modifiers;
+}
+
+KeyMod GetKeyModState()
+{
+#if defined(TARGET_SDL)
+ return (KeyMod)SDL_GetModState();
+#else
+ return HandleKeyModState(KSYM_UNDEFINED, 0);
+#endif
+}
+
+KeyMod GetKeyModStateFromEvents()
+{
+ /* always use key modifier state as tracked from key events (this is needed
+ if the modifier key event was injected into the event queue, but the key
+ was not really pressed on keyboard -- SDL_GetModState() seems to directly
+ query the keys as held pressed on the keyboard) -- this case is currently
+ only used to filter out clipboard insert events from "True X-Mouse" tool */
+
+ return HandleKeyModState(KSYM_UNDEFINED, 0);
+}
+
+boolean CheckCloseWindowEvent(ClientMessageEvent *event)