gtkPreviewSetGamma: gtkPreviewSetGamma
Description
Set the gamma-correction value for all preview widgets.
(This function will eventually be replaced with a
function that sets a per-preview-widget gamma value).
The resulting intensity is given by:
destination_value * pow (source_value/255, 1/gamma)
.
The gamma value is applied when the data is
set with gtkPreviewDrawRow
so changing this
value will not affect existing data in preview
widgets.
WARNING: gtk_preview_set_gamma
is deprecated and should not be used in newly-written code.
Usage
gtkPreviewSetGamma(gamma)
Arguments
gamma
the new gamma value.