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Diffstat (limited to 'documentation/src/drawing.dox')
| -rw-r--r-- | documentation/src/drawing.dox | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/documentation/src/drawing.dox b/documentation/src/drawing.dox index 1eee9f195..a80286f68 100644 --- a/documentation/src/drawing.dox +++ b/documentation/src/drawing.dox @@ -69,11 +69,15 @@ The current scale factor value, for an Fl_Window named \e window, is given by One drawing unit generally corresponds to one screen pixel ... <li>... but not on macOS and for retina displays, where one drawing unit corresponds to two pixels. + +<li>... and not with the Wayland platform, where one drawing unit may +correspond to 1, 2, or 3 pixels according to the current value of the +Wayland-defined, integer-valued scale factor. </ul> At application start time, FLTK attempts to detect the adequate scale factor value for -each screen of the system. Here is how that's done under the \ref osissues_x_scaling "X11" -and \ref osissues_windows_scaling "Windows" platforms. +each screen of the system. Here is how that's done under the \ref osissues_x_scaling "X11", +\ref osissues_windows_scaling "Windows", and \ref osissues_wayland_scaling "Wayland" platforms. If the resulting scale factor is not satisfactory, and also under the macOS platform, it's possible to set the <tt>FLTK_SCALING_FACTOR</tt> environmental variable to the desired numerical value |