polycode-no-touch-to-mouse.patch

diff --git a/Core/Contents/Source/PolyWinCore.cpp b/Core/Contents/Source/PolyWinCore.cpp
index 85713dd..1a80d7b 100644
--- a/Core/Contents/Source/PolyWinCore.cpp
+++ b/Core/Contents/Source/PolyWinCore.cpp
@@ -645,7 +645,14 @@ void Win32Core::handleTouchEvent(LPARAM lParam, WPARAM wParam) {
 }
 #endif
 
+static bool isMouseEventFromTouchInput() {
+	LPARAM extra = GetMessageExtraInfo();
+	return (extra & 0x80) != 0;
+}
+
 void Win32Core::handleMouseMove(LPARAM lParam, WPARAM wParam) {
+	if (isMouseEventFromTouchInput())
+		return;
 	lockMutex(eventMutex);
 	Win32Event newEvent;
 	newEvent.eventGroup = Win32Event::INPUT_EVENT;
@@ -671,6 +678,8 @@ void Win32Core::handleMouseWheel(LPARAM lParam, WPARAM wParam) {
 }
 
 void Win32Core::handleMouseDown(int mouseCode,LPARAM lParam, WPARAM wParam) {
+	if (isMouseEventFromTouchInput())
+		return;
 	lockMutex(eventMutex);
 	Win32Event newEvent;
 	newEvent.eventGroup = Win32Event::INPUT_EVENT;
@@ -683,6 +692,8 @@ void Win32Core::handleMouseDown(int mouseCode,LPARAM lParam, WPARAM wParam) {
 }
 
 void Win32Core::handleMouseUp(int mouseCode,LPARAM lParam, WPARAM wParam) {
+	if (isMouseEventFromTouchInput())
+		return;
 	lockMutex(eventMutex);
 	Win32Event newEvent;
 	newEvent.eventGroup = Win32Event::INPUT_EVENT;