From ec88e4a7c0987dda13915d44f3efffe20909881b Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Tue, 21 Aug 2018 09:26:01 +0000
Subject: Show also how to create the OpenGL3 GLUT window fullscreen.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@13024 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 examples/OpenGL3-glut-test.cxx | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'examples/OpenGL3-glut-test.cxx')

diff --git a/examples/OpenGL3-glut-test.cxx b/examples/OpenGL3-glut-test.cxx
index 9ec8c4989..8c1094fcf 100644
--- a/examples/OpenGL3-glut-test.cxx
+++ b/examples/OpenGL3-glut-test.cxx
@@ -189,14 +189,21 @@ void display(void)
   glDrawArrays(GL_TRIANGLES, 0, 3);	// draw second object
  }
 
+int fullscreen = 0;
 
 int main (int argc, char* argv[])
 {
   Fl::use_high_res_GL(true);
   glutInit(&argc, argv);
   glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | FL_OPENGL3);
-  glutInitWindowSize(400,400);
+  int W = 400, H = 400;
+  if (fullscreen) {
+    int X,Y;
+    Fl::screen_xywh(X,Y,W,H,0);
+  }
+  glutInitWindowSize(W, H);
   glutCreateWindow("Triangle Test");
+  if (fullscreen) Fl::first_window()->fullscreen();
 #ifndef __APPLE__
   GLenum err = glewInit(); // defines pters to functions of OpenGL V 1.2 and above
   if (err) Fl::error("glewInit() failed returning %u", err);
-- 
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