From 1c8d3ab94f130b09320584b29513790e90311b52 Mon Sep 17 00:00:00 2001
From: bruvzg <7645683+bruvzg@users.noreply.github.com>
Date: Thu, 7 Nov 2019 14:12:15 +0200
Subject: [PATCH] Fix graphic tablet input coordinates on Windows.

---
 platform/windows/os_windows.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
 mode change 100644 => 100755 platform/windows/os_windows.cpp

diff --git a/platform/windows/os_windows.cpp b/platform/windows/os_windows.cpp
old mode 100644
new mode 100755
index c4cd8e068c0..e73cfcf2414
--- a/platform/windows/os_windows.cpp
+++ b/platform/windows/os_windows.cpp
@@ -556,8 +556,14 @@ LRESULT OS_Windows::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 
 			mm->set_button_mask(last_button_state);
 
-			mm->set_position(Vector2(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)));
-			mm->set_global_position(Vector2(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)));
+			POINT coords; //client coords
+			coords.x = GET_X_LPARAM(lParam);
+			coords.y = GET_Y_LPARAM(lParam);
+
+			ScreenToClient(hWnd, &coords);
+
+			mm->set_position(Vector2(coords.x, coords.y));
+			mm->set_global_position(Vector2(coords.x, coords.y));
 
 			if (mouse_mode == MOUSE_MODE_CAPTURED) {