From 0d4fd9c40239c9b1c9ebb891e6c2e36c40b3c73e Mon Sep 17 00:00:00 2001
From: Nicholas Rishel <rishel.nick@gmail.com>
Date: Thu, 2 Dec 2021 21:41:00 -0800
Subject: Test fix.

---
 intern/ghost/intern/GHOST_SystemWin32.cpp | 1 +
 intern/ghost/intern/GHOST_Wintab.cpp      | 6 ++++++
 intern/ghost/intern/GHOST_Wintab.h        | 5 +++++
 3 files changed, 12 insertions(+)

diff --git a/intern/ghost/intern/GHOST_SystemWin32.cpp b/intern/ghost/intern/GHOST_SystemWin32.cpp
index e4630ad1ab5..d50adb266ce 100644
--- a/intern/ghost/intern/GHOST_SystemWin32.cpp
+++ b/intern/ghost/intern/GHOST_SystemWin32.cpp
@@ -1607,6 +1607,7 @@ LRESULT WINAPI GHOST_SystemWin32::s_wndProc(HWND hwnd, UINT msg, WPARAM wParam,
             if (inRange) {
               /* Some devices don't emit WT_CSRCHANGE events, so update cursor info here. */
               wt->updateCursorInfo();
+              wt->enterRange();
             }
             else {
               wt->leaveRange();
diff --git a/intern/ghost/intern/GHOST_Wintab.cpp b/intern/ghost/intern/GHOST_Wintab.cpp
index cf0309b1521..5918dc4e2dd 100644
--- a/intern/ghost/intern/GHOST_Wintab.cpp
+++ b/intern/ghost/intern/GHOST_Wintab.cpp
@@ -247,6 +247,12 @@ void GHOST_Wintab::leaveRange()
   m_fpPacketsGet(m_context.get(), m_pkts.size(), m_pkts.data());
 }
 
+void GHOST_Wintab::enterRange()
+{
+  /* Placeholder to signal tablet in range, necessary to disable mouse input handling. */
+  m_lastTabletData.Active = GHOST_kTabletModeStylus;
+}
+
 void GHOST_Wintab::remapCoordinates()
 {
   LOGCONTEXT lc = {0};
diff --git a/intern/ghost/intern/GHOST_Wintab.h b/intern/ghost/intern/GHOST_Wintab.h
index a6c41bf5f64..ace44b7dd28 100644
--- a/intern/ghost/intern/GHOST_Wintab.h
+++ b/intern/ghost/intern/GHOST_Wintab.h
@@ -91,6 +91,11 @@ class GHOST_Wintab {
    */
   void loseFocus();
 
+  /**
+   * Updates tablet state to indicate tablet is in range.
+   */
+  void enterRange();
+
   /**
    * Clean up when Wintab leaves tracking range.
    */
-- 
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