ColorChooser.useAlpha

bool useAlpha() @property

Get useAlpha property.

Returns

When ::use-alpha is true, colors may have alpha (translucency)

information. When it is false, the #GdkRGBA struct obtained via the #GtkColorChooser:rgba property will be forced to have alpha == 1.

Implementations are expected to show alpha by rendering the color over a non-uniform background (like a checkerboard pattern).

void useAlpha(bool propval) @property

Set useAlpha property.

Parameters

propvalWhen ::use-alpha is true, colors may have alpha (translucency) information. When it is false, the #GdkRGBA struct obtained via the #GtkColorChooser:rgba property will be forced to have
alpha= 1. Implementations are expected to show alpha by rendering the color over a non-uniform background (like a checkerboard pattern).