From 96bacd3f9dff5b428a7826bbd507b1c02b2bcbba Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Tue, 19 Dec 2023 15:48:26 +0100
Subject: Procedure to instruct FLTK to use given X11 connexion (#149)

---
 FL/x11.H | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'FL')

diff --git a/FL/x11.H b/FL/x11.H
index 73af4e7fc..2c98bc39f 100644
--- a/FL/x11.H
+++ b/FL/x11.H
@@ -26,6 +26,11 @@
 
 /** Returns the X11 Display in use */
 extern Display *fl_x11_display();
+/** Have FLTK use a pre-established X11 connexion.
+ This function should be called before FLTK attempts to open its own X11 connexion.
+ \param d the X11 Display* value representing a valid, pre-established X11 connexion
+ */
+extern void fl_x11_use_display(Display *d);
 /** Returns the Window reference for the given Fl_Window, or zero if not \c shown().  */
 extern Window fl_x11_xid(const Fl_Window *win);
 /** Returns the Fl_Window corresponding to the given Window reference.  */
@@ -58,6 +63,7 @@ extern GLXContext fl_x11_glcontext(GLContext rc);
 // constant info about the X server connection:
 extern FL_EXPORT Display *fl_display;
 extern FL_EXPORT Display *fl_x11_display();
+extern FL_EXPORT void fl_x11_use_display(Display *);
 extern FL_EXPORT Window fl_x11_xid(const Fl_Window *win);
 extern FL_EXPORT Fl_Window *fl_x11_find(Window);
 extern FL_EXPORT int fl_screen;
-- 
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