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| -rw-r--r-- | FL/fl_draw.H | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/FL/fl_draw.H b/FL/fl_draw.H index 9ae32f3c4..7f1a63451 100644 --- a/FL/fl_draw.H +++ b/FL/fl_draw.H @@ -173,12 +173,18 @@ inline void fl_restore_clip() { Replaces the top of the clipping stack with a clipping region of any shape. Fl_Region is an operating system specific type. + \note This function is mostly intended for internal use by the FLTK library + when drawing to the display. + Its effect can be null if the current drawing surface is not the display. \param[in] r clipping region */ inline void fl_clip_region(Fl_Region r) { fl_graphics_driver->clip_region(r); } /** Returns the current clipping region. + \note This function is mostly intended for internal use by the FLTK library + when drawing to the display. + Its return value can be always NULL if the current drawing surface is not the display. */ inline Fl_Region fl_clip_region() { return fl_graphics_driver->clip_region(); } |