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Docs: LCL/dialogs. Updates the TColorDialog.AlphaChannel topic with additional content. Depends on 2b5f9be070. Issue #22717.

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dsiders 2024-12-15 01:00:39 +00:00
parent 2b5f9be070
commit 7f6df323df
1 changed files with 5 additions and 2 deletions
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docs/xml/lcl/dialogs.xml
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@ -2716,14 +2716,17 @@ For the macOS Carbon widgetset, the Title property is not supported.
<element name="TColorDialog.AlphaChannel">
<short>
Indicates the opacity or transparency for the color on the dialog.
Indicates the opacity or transparency for the selected color.
</short>
<descr>
<p>
<var>AlphaChannel</var> is a Byte property which normally contains a value in
the range 0 (transparent) to 255 (opaque). The default value for the property
is 255 ($FF)(fully opaque). The AlphaChannel in a color is used in images which
have a TransparentMode where partial transparency is supported.
have a TransparentMode where partial transparency is supported. AlphaChannel
indicates the opacity for pixels using the color. It allows the color to be
combined over other colors using alpha compositing. The more opaque a color,
the more it hides the background against which the color is presented.
</p>
<p>
AlphaChannel is used in widgetsets where the value is supported, and is