GtkSharp/doc/en/Gtk/DrawingArea.xml

<Type Name="DrawingArea" FullName="Gtk.DrawingArea">
  <TypeSignature Language="C#" Value="public class DrawingArea : Gtk.Widget, Implementor, IWrapper, IWrapper, IDisposable" Maintainer="Hector Gomez M" />
  <AssemblyInfo>
    <AssemblyName>gtk-sharp</AssemblyName>
    <AssemblyVersion>0.0.0.0</AssemblyVersion>
    <Attributes />
  </AssemblyInfo>
  <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>
  <Docs>
    <summary>The GtkDrawingArea widget is used for creating custom user interface elements.</summary>
    <remarks>
     <para>
      The <see cref="T:Gtk.DrawingArea"/> widget is used for creating custom user interface elements. It's essentially a blank widget; you can draw on <paramref name="widget"/>->window. After creating a drawing area, the application may want to connect to: <para><list type="bullet">
<item> 1)  Mouse and button press signals to respond to input from the user. (Use <see cref="M:Gtk.Widget.AddEvents"/> to enable events you wish to receive).</item>
<item> 2)  The <paramref name="realize"/> signal to take any necessary actions when the widget is instantiated on a particular display. (Create GDK resources in response to this signal.)</item>
<item> 3)  The <paramref name="configure_event"/> signal to take any necessary actions when the widget changes size.</item>
<item> 4)  The <paramref name="expose_event"/> signal to handle redrawing the contents of the widget.</item></list></para>
     </para>
     <para>
      Expose events are normally delivered when a drawing area first comes onscreen, or when it's covered by another window and then uncovered (exposed). You can also force an expose event by adding to the "damage region" of the drawing area's window; <see cref="M:Gtk.Widget.QueueDrawArea"/> and <see cref="M:Gdk.Window.InvalidateRect"/> are equally good ways to do this. You'll then get an expose event for the invalid region. See also <see cref="M:Gdk.Pixbuf.RenderToDrawable"/> for drawing a <see cref="T:Gdk.Pixbuf"/>.
     </para>
    </remarks>
  </Docs>
  <Base>
    <BaseTypeName>Gtk.Widget</BaseTypeName>
  </Base>
  <Interfaces>
    <Interface>
      <InterfaceName>Atk.Implementor</InterfaceName>
    </Interface>
    <Interface>
      <InterfaceName>GLib.IWrapper</InterfaceName>
    </Interface>
    <Interface>
      <InterfaceName>GLib.IWrapper</InterfaceName>
    </Interface>
    <Interface>
      <InterfaceName>System.IDisposable</InterfaceName>
    </Interface>
  </Interfaces>
  <Attributes />
  <Members>
    <Member MemberName="Finalize">
      <MemberSignature Language="C#" Value="protected virtual void Finalize ();" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>Disposes the resources associated with the object.</summary>
        <remarks />
      </Docs>
    </Member>
    <Member MemberName=".ctor">
      <MemberSignature Language="C#" Value="protected DrawingArea (uint gtype);" />
      <MemberType>Constructor</MemberType>
      <ReturnValue />
      <Parameters>
        <Parameter Name="gtype" Type="System.UInt32" />
      </Parameters>
      <Docs>
        <summary>Internal constructor</summary>
        <param name="gtype">GLib type for the type</param>
        <returns>Creates a new instance of DrawingArea, using the GLib-provided type</returns>
        <remarks>
          <para>This is a constructor used by derivative types of <see cref="T:Gtk.DrawingArea" /> that would have their own GLib type assigned to it.  This is not typically used by C# code.</para>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName=".ctor">
      <MemberSignature Language="C#" Value="public DrawingArea (IntPtr raw);" />
      <MemberType>Constructor</MemberType>
      <ReturnValue />
      <Parameters>
        <Parameter Name="raw" Type="System.IntPtr" />
      </Parameters>
      <Docs>
        <summary>Internal constructor</summary>
        <param name="raw">Pointer to the C object.</param>
        <returns>An instance of DrawingArea, wrapping the C object.</returns>
        <remarks>
          <para>This is an internal constructor, and should not be used by user code.</para>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName=".ctor">
      <MemberSignature Language="C#" Value="public DrawingArea ();" />
      <MemberType>Constructor</MemberType>
      <ReturnValue />
      <Parameters />
      <Docs>
        <summary>Constructor.</summary>
        <returns>An instance of <see cref="T:Gtk.DrawingArea"/>.</returns>
        <remarks />
      </Docs>
    </Member>
    <Member MemberName="GType">
      <MemberSignature Language="C#" Value="public static uint GType { get; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>System.UInt32</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>The GLib Type for Gtk.DrawingArea</summary>
        <returns>The GLib TYpe for the Gtk.DrawingArea class.</returns>
        <remarks />
      </Docs>
    </Member>
  </Members>
</Type>