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Fl_Gl_Device_Plugin: better code for GL window capture after coverage by print dialog windows

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git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7348 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Manolo Gouy 2010-03-28 06:58:39 +00:00
parent 092b65139d
commit 2a75e82e3d
1 changed files with 7 additions and 5 deletions
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12
src/Fl_Gl_Device_Plugin.cxx
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@ -58,13 +58,15 @@ static void print_gl_window(Fl_Abstract_Printer *printer, Fl_Gl_Window *glw, int
Fl_Window *win = (Fl_Window*)glw;
while( win->window() ) win = win->window();
win->redraw();
#else
glw->redraw();
#endif
Fl::check();
glw->make_current();
// select front buffer as our source for pixel data
glReadBuffer(GL_FRONT);
#else
glw->make_current();
glw->redraw();
glFlush();
Fl::check();
glFinish();
#endif
// Read OpenGL context pixels directly.
// For extra safety, save & restore OpenGL states that are changed
glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);