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| author | ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com> | 2022-09-25 16:39:40 +0200 |
|---|---|---|
| committer | ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com> | 2022-09-25 16:39:40 +0200 |
| commit | 89f9671b406d1d2ac0377ef90d44ebfa7a92150e (patch) | |
| tree | dbbdfe6b0eeb889fcfdf0f499f5e0b99e1532926 /src/drivers/WinAPI/Fl_WinAPI_Printer_Driver.cxx | |
| parent | 0fd10e9fde6849703fef981f3e032e62cd238e07 (diff) | |
Add cross-platform support for adding widgets to an OpenGL3-based Fl_Gl_Window.
Under non-macOS platforms, the key is to call glUseProgram(0); after having used OpenGL 3
which allows to then use OpenGL 1 and draw FLTK widgets over the OpenGL3 scene.
Under macOS, this is impossible because macOS GL3 contexts are not compatible
with GL1. The solution implemented here is to create an additional Fl_Gl_Window
placed above and sized as the GL3-based window, to give it a non opaque,
GL1-based context, and to put the FLTK widgets in that additional window.
Diffstat (limited to 'src/drivers/WinAPI/Fl_WinAPI_Printer_Driver.cxx')
0 files changed, 0 insertions, 0 deletions