open black window immediately. This doesn't only give useful feedback,

it also allows to switch desktops shortly after starting fgfs without
having the window pop up on the "wrong" virtual desktop.

diff --git a/src/Main/fg_os.cxx b/src/Main/fg_os.cxx
index 5d14659aa90349d53c02ae4a7e7e9e0247599249..6a55e23d5355453ae3e7fa540f507bb4021f1693 100644 (file)
--- a/src/Main/fg_os.cxx
+++ b/src/Main/fg_os.cxx
@@ -217,4 +217,8 @@ void fgOSOpenWindow(int w, int h, int bpp, bool alpha,
     glutDisplayFunc(GLUTdraw);
     glutReshapeFunc(GLUTreshape);
 
+    glutShowWindow();
+    glClear(GL_COLOR_BUFFER_BIT);
+    glutSwapBuffers();
+    glutPostRedisplay();
 }