From c4e04e4c7f446464ef65382cf10bc13417563b3b Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Sun, 30 Jul 2017 16:21:57 +0000
Subject: Improve rescaling when window moved across screens: make sure center
 stays on new screen.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12367 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx')

diff --git a/src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx b/src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx
index 0f0609bcc..1b9b03f17 100644
--- a/src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx
+++ b/src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.cxx
@@ -666,9 +666,10 @@ void Fl_WinAPI_Screen_Driver::offscreen_size(Fl_Offscreen off, int &width, int &
   }
 }
 
+//NOTICE: returns -1 if x,y is not in any screen
 int Fl_WinAPI_Screen_Driver::screen_num_unscaled(int x, int y)
 {
-  int screen = 0;
+  int screen = -1;
   if (num_screens < 0) init();
   for (int i = 0; i < num_screens; i ++) {
     if (x >= screens[i].left && x < screens[i].right &&
-- 
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