From c0d2aa3f09ab0f68265d1aee28b9121bfadc945e Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Thu, 25 Apr 2024 15:12:34 +0200
Subject: [PATCH] Fix problem in window titlebar capture under X11.

---
 src/drivers/X11/Fl_X11_Screen_Driver.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/drivers/X11/Fl_X11_Screen_Driver.cxx b/src/drivers/X11/Fl_X11_Screen_Driver.cxx
index 8dc79fc68..270504fd7 100644
--- a/src/drivers/X11/Fl_X11_Screen_Driver.cxx
+++ b/src/drivers/X11/Fl_X11_Screen_Driver.cxx
@@ -703,8 +703,8 @@ Fl_RGB_Image *Fl_X11_Screen_Driver::read_win_rectangle(int X, int Y, int w, int
       hs = (h+1) * s;
      }
 #endif
-    if (win && Xs + ws >= int(win->w()*s)) ws = win->w()*s - Xs -1;
-    if (win && Ys + hs >= int(win->h()*s)) hs = win->h()*s - Ys -1;
+    if (!allow_outside && win && Xs + ws >= int(win->w()*s)) ws = win->w()*s - Xs -1;
+    if (!allow_outside && win && Ys + hs >= int(win->h()*s)) hs = win->h()*s - Ys -1;
     if (ws < 1) ws = 1;
     if (hs < 1) hs = 1;
     if (!win || (dx >= sx && dy >= sy && dx + ws <= sx+sw && dy + hs <= sy+sh) ) {