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* Makefile.am : add an update-delete target for --delete. * en/*/*.xml : update-delete. svn path=/trunk/gtk-sharp/; revision=44918
258 lines
11 KiB
XML
258 lines
11 KiB
XML
<Type Name="Visual" FullName="Gdk.Visual">
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<TypeSignature Language="C#" Maintainer="miguel" Value="public class Visual : GLib.Object" />
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<AssemblyInfo>
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<AssemblyName>gdk-sharp</AssemblyName>
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<AssemblyPublicKey>
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</AssemblyPublicKey>
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<AssemblyVersion>2.0.0.0</AssemblyVersion>
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</AssemblyInfo>
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<ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
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<Docs>
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<summary>Describes a particular video hardware display format.</summary>
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<remarks>
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<para>
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A Gdk.Visual describes a particular video hardware display
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format. It includes information about the number of bits used
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for each color, the way the bits are translated into an RGB
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value for display, and the way the bits are stored in
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memory. For example, a piece of display hardware might support
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24-bit color, 16-bit color, or 8-bit color; meaning
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24/16/8-bit pixel sizes. For a given pixel size, pixels can be
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in different formats; for example the "red" element of an RGB
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pixel may be in the top 8 bits of the pixel, or may be in the
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lower 4 bits.
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</para>
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<para>
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Usually you can avoid thinking about visuals in GTK+. Visuals
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are useful to interpret the contents of a <see cref="T:Gdk.Image" />, but you should avoid GdkImage precisely
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because its contents depend on the display hardware; use <see cref="T:Gdk.Pixbuf" /> instead, for all but the most low-level
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purposes. Also, anytime you provide a <see cref="T:Gdk.Colormap" />, the visual is implied as part of the
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colormap (<see cref="P:Gdk.Colormap.Visual" />), so you won't
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have to provide a visual in addition.
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</para>
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<para>
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There are several standard visuals. The visual returned by
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<see cref="P:Gdk.Visual.System" /> is the system's default
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visual. <see cref="P:Gdk.Rgb.Visual" /> return the visual most
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suited to displaying full-color image data. If you use the
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calls in <see cref="T:Gdk.RGB" />, you should create your
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windows using this visual (and the colormap returned by <see cref="P:Gdk.Rgb.Colormap" />).
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</para>
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<para>
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A number of functions are provided for determining the "best"
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available visual. For the purposes of making this
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determination, higher bit depths are considered better, and
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for visuals of the same bit depth, <see cref="E:Gdk.VisualType.PseudoColor" /> is preferred at 8bpp,
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otherwise, the visual types are ranked in the order of
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(highest to lowest) <see cref="E:Gdk.VisualType.DirectColor" /><see cref="E:Gdk.VisualType.TrueColor" />, <see cref="E:Gdk.VisualType.PseudoColor" />, <see cref="Gdk.VisualType.StaticColor" />, <see cref="Gdk.VisualType.Grayscale" />, then
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<see cref="E:Gdk.VisualType.StaticGray" />.
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</para>
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</remarks>
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</Docs>
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<Base>
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<BaseTypeName>GLib.Object</BaseTypeName>
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</Base>
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<Interfaces>
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</Interfaces>
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<Members>
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<Member MemberName="GetBestWithDepth">
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<MemberSignature Language="C#" Value="public static Gdk.Visual GetBestWithDepth (int depth);" />
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<MemberType>Method</MemberType>
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<ReturnValue>
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<ReturnType>Gdk.Visual</ReturnType>
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</ReturnValue>
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<Parameters>
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<Parameter Name="depth" Type="System.Int32" />
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</Parameters>
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<Docs>
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<summary>Get the best visual with depth depth for the default GDK screen.</summary>
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<param name="depth">A bit depth</param>
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<returns>Best visual for the given depth.</returns>
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<remarks>
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<para>
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Get the best visual with depth depth for the default GDK
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screen. Color visuals and visuals with mutable colormaps
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are preferred over grayscale or fixed-colormap visuals.
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The return value should not be freed. <see langword="null" /> may be returned if no visual supports
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<paramref name="depth" />.
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</para>
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</remarks>
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</Docs>
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</Member>
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<Member MemberName="GetBestWithType">
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<MemberSignature Language="C#" Value="public static Gdk.Visual GetBestWithType (Gdk.VisualType visual_type);" />
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<MemberType>Method</MemberType>
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<ReturnValue>
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<ReturnType>Gdk.Visual</ReturnType>
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</ReturnValue>
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<Parameters>
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<Parameter Name="visual_type" Type="Gdk.VisualType" />
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</Parameters>
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<Docs>
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<summary>Get the best visual of the given visual_type for the default GDK screen.</summary>
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<param name="visual_type">Required visual type.</param>
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<returns>Best visual of the given type</returns>
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<remarks>
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<para>
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Get the best visual of the given <paramref name="visual_type" /> for the default GDK screen. Visuals
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with higher color depths are considered better. The return
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value should not be freed. <see langword="null" /> may be
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returned if no visual has type <paramref name="visual_type" />.
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</para>
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</remarks>
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</Docs>
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</Member>
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<Member MemberName="GetBestWithBoth">
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<MemberSignature Language="C#" Value="public static Gdk.Visual GetBestWithBoth (int depth, Gdk.VisualType visual_type);" />
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<MemberType>Method</MemberType>
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<ReturnValue>
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<ReturnType>Gdk.Visual</ReturnType>
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</ReturnValue>
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<Parameters>
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<Parameter Name="depth" Type="System.Int32" />
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<Parameter Name="visual_type" Type="Gdk.VisualType" />
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</Parameters>
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<Docs>
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<summary>Get the best visual given a visual type and a
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required depth.</summary>
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<param name="depth">Required depth.</param>
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<param name="visual_type">Required visual type.</param>
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<returns>Best visual of the given type and depth.</returns>
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<remarks>
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<para>
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Get the best visual of the given <paramref name="visual_type" /> at the given <paramref name="depth" />for the default GDK screen. Visuals with
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higher color depths are considered better. The return
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value should not be freed. <see langword="null" /> may be
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returned if no visual that match the type <paramref name="visual_type" /> and <paramref name="depth" />.
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</para>
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</remarks>
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</Docs>
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</Member>
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<Member MemberName=".ctor">
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<MemberSignature Language="C#" Value="public Visual (IntPtr raw);" />
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<MemberType>Constructor</MemberType>
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<ReturnValue />
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<Parameters>
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<Parameter Name="raw" Type="System.IntPtr" />
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</Parameters>
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<Docs>
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<summary>Internal constructor</summary>
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<param name="raw">Pointer to the C object.</param>
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<remarks>
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<para>This is an internal constructor, and should not be used by user code.</para>
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</remarks>
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</Docs>
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</Member>
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<Member MemberName="BestType">
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<MemberSignature Language="C#" Value="public static Gdk.VisualType BestType { get; };" />
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<MemberType>Property</MemberType>
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<ReturnValue>
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<ReturnType>Gdk.VisualType</ReturnType>
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</ReturnValue>
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<Docs>
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<summary>Best visual type for the default Gdk screen</summary>
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<value>The best visual type available.</value>
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<remarks>Return the best available visual type for the default GDK screen.</remarks>
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</Docs>
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</Member>
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<Member MemberName="BestDepth">
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<MemberSignature Language="C#" Value="public static int BestDepth { get; };" />
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<MemberType>Property</MemberType>
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<ReturnValue>
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<ReturnType>System.Int32</ReturnType>
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</ReturnValue>
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<Docs>
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<summary>Best depth for the default Gdk screen.</summary>
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<value>The best depth</value>
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<remarks>
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<para>
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Get the best available depth for the default GDK
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screen. "Best" means "largest," i.e. 32 preferred over 24
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preferred over 8 bits per pixel.
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</para>
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</remarks>
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</Docs>
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</Member>
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<Member MemberName="Best">
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<MemberSignature Language="C#" Value="public static Gdk.Visual Best { get; };" />
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<MemberType>Property</MemberType>
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<ReturnValue>
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<ReturnType>Gdk.Visual</ReturnType>
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</ReturnValue>
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<Docs>
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<summary>Visual with the most available colors for the default GDK screen.</summary>
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<value>The best visual.</value>
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<remarks>Get the visual with the most available colors for the default GDK screen. </remarks>
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</Docs>
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</Member>
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<Member MemberName="System">
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<MemberSignature Language="C#" Value="public static Gdk.Visual System { get; };" />
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<MemberType>Property</MemberType>
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<ReturnValue>
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<ReturnType>Gdk.Visual</ReturnType>
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</ReturnValue>
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<Docs>
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<summary>The system'sdefault visual for the default GDK
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screen.</summary>
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<value>The system visual</value>
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<remarks>Get the system'sdefault visual for the default GDK
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screen. This is the visual for the root window of the
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display.</remarks>
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</Docs>
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</Member>
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<Member MemberName="Screen">
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<MemberSignature Language="C#" Value="public Gdk.Screen Screen { get; };" />
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<MemberType>Property</MemberType>
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<ReturnValue>
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<ReturnType>Gdk.Screen</ReturnType>
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</ReturnValue>
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<Docs>
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<summary>Gets the screen to which this visual belongs.</summary>
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<value>The <see cref="T:Gdk.Screen" /> to which this visual belongs.</value>
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<remarks>None.</remarks>
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</Docs>
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</Member>
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<Member MemberName="GType">
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<MemberSignature Language="C#" Value="public static GLib.GType GType { get; };" />
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<MemberType>Property</MemberType>
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<ReturnValue>
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<ReturnType>GLib.GType</ReturnType>
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</ReturnValue>
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<Parameters />
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<Docs>
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<summary>GType Property.</summary>
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<value>a <see cref="T:GLib.GType" /></value>
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<remarks>Returns the native <see cref="T:GLib.GType" /> value for <see cref="T:Gdk.Visual" />.</remarks>
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</Docs>
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</Member>
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<Member MemberName=".ctor">
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<MemberSignature Language="C#" Value="protected Visual (GLib.GType gtype);" />
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<MemberType>Constructor</MemberType>
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<ReturnValue />
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<Parameters>
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<Parameter Name="gtype" Type="GLib.GType" />
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</Parameters>
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<Docs>
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<summary>Protected Constructor.</summary>
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<param name="gtype">a <see cref="T:GLib.GType" /></param>
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<remarks>Chain to this constructor if you have manually registered a native <see cref="T:GLib.GType" /> value for your subclass.</remarks>
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</Docs>
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<Attributes>
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<Attribute>
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<AttributeName>System.Obsolete(Message=null, IsError=False)</AttributeName>
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</Attribute>
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</Attributes></Member>
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<Member MemberName=".ctor">
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<MemberSignature Language="C#" Value="protected Visual ();" />
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<MemberType>Constructor</MemberType>
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<ReturnValue />
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<Parameters />
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<Docs>
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<summary>Default constructor.</summary>
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<remarks>None.</remarks>
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</Docs>
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</Member>
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</Members>
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</Type>
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