Update gbActive correctly when minimizing the app

Source/DiabloUI/diabloui.cpp

@@ -485,9 +485,9 @@ void UiHandleEvents(SDL_Event *event)
 	HandleControllerAddedOrRemovedEvent(*event);
 
 	if (event->type == SDL_WINDOWEVENT) {
-		if (event->window.event == SDL_WINDOWEVENT_SHOWN) {
+		if (IsAnyOf(event->window.event, SDL_WINDOWEVENT_SHOWN, SDL_WINDOWEVENT_EXPOSED)) {
 			gbActive = true;
-		} else if (event->window.event == SDL_WINDOWEVENT_HIDDEN) {
+		} else if (IsAnyOf(event->window.event, SDL_WINDOWEVENT_HIDDEN, SDL_WINDOWEVENT_MINIMIZED)) {
 			gbActive = false;
 		} else if (event->window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
 			ReinitializeHardwareCursor();

Source/init.cpp

@@ -331,13 +331,12 @@ void MainWndProc(const SDL_Event &event)
 		return;
 	switch (event.window.event) {
 	case SDL_WINDOWEVENT_HIDDEN:
+	case SDL_WINDOWEVENT_MINIMIZED:
 		gbActive = false;
 		break;
 	case SDL_WINDOWEVENT_SHOWN:
-		gbActive = false;
-		RedrawEverything();
-		break;
 	case SDL_WINDOWEVENT_EXPOSED:
+		gbActive = true;
 		RedrawEverything();
 		break;
 	case SDL_WINDOWEVENT_SIZE_CHANGED: