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Docs: LCL/dialogs. Updates TColorDialogOption.cdShowAlphaChannel to include GTK3 in the supported platforms. Issue #22717.

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dsiders 2025-01-24 23:34:46 -05:00
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1 changed files with 18 additions and 16 deletions
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34
docs/xml/lcl/dialogs.xml
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@ -2422,9 +2422,9 @@ Represents the options which can be enabled during execution of a color dialog.
</short>
<descr>
<p>
Values from the enumeration are stored in the TColorDialogOptions set type used
to implement the TColorDialog.Options property. Please note that some options
are platform-specific, as indicated in their descriptions.
Values from the enumeration are stored in the TColorDialogOptions set type
used to implement the TColorDialog.Options property. Please note that some
options are platform-specific, as indicated in their descriptions.
</p>
</descr>
<version>
@ -2437,8 +2437,8 @@ Added in LCL version 4.0.
</element>
<element name="TColorDialogOption.cdFullOpen">
<short>
Causes the dialog box to display the additional controls that allow the user to
create custom colors.
Causes the dialog box to display the additional controls that allow the user
to create custom colors.
</short>
</element>
<element name="TColorDialogOption.cdPreventFullOpen">
@ -2464,7 +2464,8 @@ colors.
</element>
<element name="TColorDialogOption.cdShowAlphaChannel">
<short>
Displays the AlphaChannel control on the dialog. (GTK2, QT4, QT5, QT6, Cocoa)
Displays the AlphaChannel control on the dialog (GTK2, GTK3, QT4, QT5, QT6,
Cocoa). Not implemented for the Windows platform.
</short>
</element>
<element name="TColorDialogOption.cdNoButtons">
@ -2650,9 +2651,9 @@ Constructor for the class instance.
</short>
<descr>
<p>
<var>Create</var> is the constructor for <var>TColorDialog</var>, and calls the
inherited <var>Create</var> method. Create allocates resources and initializes
the default values for properties in the class instance, including:
<var>Create</var> is the constructor for <var>TColorDialog</var>, and calls
the inherited <var>Create</var> method. Create allocates resources and
initializes the default values for properties in the class instance, including:
</p>
<dl>
<dt>AlphaChannel </dt>
@ -2722,11 +2723,12 @@ Indicates the opacity or transparency for the selected color.
<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 ($FF)(fully opaque). The AlphaChannel in a color is used in images which
have a TransparentMode where partial transparency is supported. AlphaChannel
indicates the opacity for pixels using the color. It allows the color to be
combined over other colors using alpha compositing. The more opaque a color,
the more it hides the background against which the color is presented.
is 255 ($FF)(fully opaque). The AlphaChannel in a color is used in images
which 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
@ -2734,8 +2736,8 @@ extracted from or combined with the color value as needed for the native dialog.
</p>
<remark>
On the Windows platform, a control is not displayed for AlphaChannel on the
native color selection dialog. Only solid, fully-opaque colors are supported on
the dialog.
native color selection dialog. Only solid, fully-opaque colors are supported
on the dialog.
</remark>
</descr>
<version>