1 Environment variables in VCL:
5 SAL_USE_VCLPLUGIN - use a VCL plugin
6 SAL_NO_NWF - disable native widgets
7 SAL_FORCEDPI - force a specific DPI (gtk & gtk3 plugins only)
9 VCL_DOUBLEBUFFERING_AVOID_PAINT - don't paint the buffer, useful to see where we do direct painting
10 VCL_DOUBLEBUFFERING_FORCE_ENABLE - enable double buffered painting
12 VCL_HIDE_WINDOWS - don't draw windows
16 VCL_NO_THREAD_SCALE - disable threaded bitmap scale
17 EMF_PLUS_DISABLE - use EMF rendering and ignore EMF+ specifics
21 SAL_FORCEGL - force enable OpenGL
22 SAL_WITHOUT_WIDGET_CACHE - disable LRU caching of native widget texutres
23 SAL_DISABLE_GLYPH_CACHING - don't render glyphs through OpenGL textures
24 SAL_DISABLE_GL_WATCHDOG - don't start the thread that watches for broken GL drivers