GtkSharp/doc/en/Gtk/Menu.xml

<Type Name="Menu" FullName="Gtk.Menu">
  <TypeSignature Language="C#" Maintainer="Hector Gomez M" Value="public class Menu : Gtk.MenuShell" />
  <AssemblyInfo>
    <AssemblyName>gtk-sharp</AssemblyName>
    <AssemblyPublicKey>
    </AssemblyPublicKey>
    <AssemblyVersion>2.10.0.0</AssemblyVersion>
  </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>A <see cref="T:Gtk.Menu" /> is a <see cref="T:Gtk.MenuShell" /> that implements a drop down menu.</summary>
    <remarks>
      <para>
      A <see cref="T:Gtk.Menu" /> is a <see cref="T:Gtk.MenuShell" /> that implements a drop down menu consisting of a list of <see cref="T:Gtk.MenuItem" /> objects which can be navigated and activated by the user to perform application functions.
     </para>
      <para>
      It is commonly dropped down by activating a <see cref="T:Gtk.MenuItem" /> in a <see cref="T:Gtk.MenuBar" /> or in another <see cref="T:Gtk.Menu" />, it can also be popped up by activating a <see cref="T:Gtk.OptionMenu" />. Other composite widgets such as the <see cref="T:Gtk.Notebook" /> can pop up a <see cref="T:Gtk.Menu" /> as well.
     </para>
      <example>
        <code lang="C#">
using System;
using Gtk;

public class MenuApp
{
	public static void Main (string[] args)
	{
		Application.Init();

		Window win = new Window ("Menu Sample App");
		win.DeleteEvent += new DeleteEventHandler (delete_cb);
		win.SetDefaultSize (200, 150);

		VBox box = new VBox (false, 2);
		MenuBar mb = new MenuBar ();
		Menu file_menu = new Menu ();
		MenuItem exit_item = new MenuItem("Exit");
		exit_item.Activated += new EventHandler (exit_cb);
		file_menu.Append (exit_item);

		MenuItem file_item = new MenuItem("File");
		file_item.Submenu = file_menu;
		mb.Append (file_item);

		box.PackStart(mb, false, false, 0);
		Button btn = new Button ("Yep, that's a menu");
		box.PackStart(btn, true, true, 0);

		win.Add (box);
		win.ShowAll ();
		Application.Run ();
	}

	static void delete_cb (object o, DeleteEventArgs args)
	{
		Application.Quit ();
	}

	static void exit_cb (object o, EventArgs args)
	{
		Application.Quit ();
	}
} 
  </code>
      </example>
    </remarks>
  </Docs>
  <Base>
    <BaseTypeName>Gtk.MenuShell</BaseTypeName>
  </Base>
  <Interfaces>
  </Interfaces>
  <Attributes>
    <Attribute>
      <AttributeName>System.Reflection.DefaultMember(MemberName="Item")</AttributeName>
    </Attribute>
  </Attributes>
  <Members>
    <Member MemberName="Detach">
      <MemberSignature Language="C#" Value="public void Detach ();" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>Detaches the menu from the widget to which it had been attached.</summary>
        <remarks>
          <para>
          This function will call the detacher, provided when the <see cref="M:Gtk.Menu.AttachToWidget" /> function was called.
         </para>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="Popdown">
      <MemberSignature Language="C#" Value="public void Popdown ();" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>Removes the menu from the screen.</summary>
        <remarks />
      </Docs>
    </Member>
    <Member MemberName="AttachToWidget">
      <MemberSignature Language="C#" Value="public void AttachToWidget (Gtk.Widget attach_widget, Gtk.MenuDetachFunc detacher);" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="attach_widget" Type="Gtk.Widget" />
        <Parameter Name="detacher" Type="Gtk.MenuDetachFunc" />
      </Parameters>
      <Docs>
        <summary>Attaches the menu to the widget and provides a detacher.</summary>
        <param name="attach_widget">The <see cref="T:Gtk.Widget" /> that the menu will be attached to.</param>
        <param name="detacher">The user supplied callback function that will be called when the menu calls <see cref="M:Gtk.Menu.Detach" />.</param>
        <remarks>
          <para>
          Attaches the menu to the widget and provides a callback function that will be invoked when the menu calls <see cref="M:Gtk.Menu.Detach" /> during its destruction.
         </para>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="Popup">
      <MemberSignature Language="C#" Value="public void Popup ();" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>Displays a menu and makes it available for selection.</summary>
        <remarks>This is a convenience overload that calls
	<see cref="M:Gtk.Menu.Popup(Gtk.Widget,Gtk.Widget,Gtk.MenuPositionFunc,System.IntPtr,System.UInt32,System.UInt32)" /> with some default arguments.</remarks>
      </Docs>
    </Member>
    <Member MemberName="Popup">
      <MemberSignature Language="C#" Value="public void Popup (Gtk.Widget parent_menu_shell, Gtk.Widget parent_menu_item, Gtk.MenuPositionFunc func, uint button, uint activate_time);" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="parent_menu_shell" Type="Gtk.Widget" />
        <Parameter Name="parent_menu_item" Type="Gtk.Widget" />
        <Parameter Name="func" Type="Gtk.MenuPositionFunc" />
        <Parameter Name="button" Type="System.UInt32" />
        <Parameter Name="activate_time" Type="System.UInt32" />
      </Parameters>
      <Docs>
        <summary>Displays a menu and makes it available for selection.</summary>
        <param name="parent_menu_shell">The menu shell containing the triggering menu item, or <see langword="null" />.</param>
        <param name="parent_menu_item">The menu item whose activation triggered the popup, or <see langword="null" />.</param>
        <param name="func">A user supplied function used to position the menu, or <see langword="null" />.</param>
        <param name="button">The mouse button which was pressed to initiate the event.</param>
        <param name="activate_time">The time at which the activation event occurred.</param>
        <remarks>
          <para>
          Applications can use this function to display context-sensitive menus, and will typically supply <see langword="null" /> for the <paramref name="parent_menu_shell" />, <paramref name="parent_menu_item" />, and <paramref name="func" /> parameters. The default menu positioning function will position the menu at the current mouse cursor position.
         </para>
          <para>
          The <paramref name="button" /> parameter should be the mouse button pressed to initiate the menu popup. If the menu popup was initiated by something other than a mouse button press, such as a mouse button release or a keypress, button should be zero(0).
         </para>
          <para>
          The <paramref name="activate_time" /> parameter should be the time stamp of the event that initiated the popup. If such an event is not available, use <see cref="P:Gtk.Global.CurrentEventTime" /> instead.
         </para>
        </remarks>
        <example>
          <code language="C#">
using System;
using Gtk;

class PopupSample
{
	Window win;
	Menu menu;
	
	static void Main (string[] args)
	{
		new PopupSample (args);
	}
	
	PopupSample (string[] args)
	{
		Application.Init ();
		
		win = new Window ("Menu.Popup sample");
		win.SetDefaultSize (400, 300);
		win.DeleteEvent += new DeleteEventHandler (OnWinDelete);
		
		menu = new Menu ();
		MenuItem hello = new MenuItem ("Hello");
		hello.Activated += new EventHandler (OnHelloActivated);
		hello.Show ();
		menu.Append (hello);
		
		Label label = new Label ("Right Click me");
		EventBox eventbox = new EventBox ();
		eventbox.ButtonPressEvent += new ButtonPressEventHandler (OnEventBoxPressed);
		eventbox.Add (label);
		
		win.Add (eventbox);
		
		win.ShowAll ();
		Application.Run ();
	}
	
	private void OnEventBoxPressed (object o, ButtonPressEventArgs args)
	{
		if (args.Event.button == 3)
			menu.Popup (null, null, null, 3, Gtk.Global.CurrentEventTime);
	}
	
	private void OnHelloActivated (object o, EventArgs args)
	{
		Console.WriteLine ("Hello Activated");
	}
	
	private void OnWinDelete (object o, DeleteEventArgs args)
	{
		Application.Quit ();
	}
}
          </code>
        </example>
      </Docs>
    </Member>
    <Member MemberName="Popup">
      <MemberSignature Language="C#" Value="public void Popup (Gtk.Widget parent_menu_shell, Gtk.Widget parent_menu_item, Gtk.MenuPositionFunc func, IntPtr data, uint button, uint activate_time);" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="parent_menu_shell" Type="Gtk.Widget" />
        <Parameter Name="parent_menu_item" Type="Gtk.Widget" />
        <Parameter Name="func" Type="Gtk.MenuPositionFunc" />
        <Parameter Name="data" Type="System.IntPtr" />
        <Parameter Name="button" Type="System.UInt32" />
        <Parameter Name="activate_time" Type="System.UInt32" />
      </Parameters>
      <Docs>
        <summary>Obsolete. Replaced by <see cref="Gtk.Menu.Popup(Gtk.Widget,Gtk.Widget,Gtk.MenuPositionFunc,System.UInt32,System.UInt32)" />.</summary>
        <param name="parent_menu_shell">The menu shell containing the triggering menu item, or <see langword="null" />.</param>
        <param name="parent_menu_item">The menu item whose activation triggered the popup, or <see langword="null" />.</param>
        <param name="func">A user supplied function used to position the menu, or <see langword="null" />.</param>
        <param name="data">Ignored.</param>
        <param name="button">The mouse button which was pressed to initiate the event.</param>
        <param name="activate_time">The time at which the activation event occurred.</param>
        <remarks />
      </Docs>
    </Member>
    <Member MemberName="Reposition">
      <MemberSignature Language="C#" Value="public void Reposition ();" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>Repositions the menu according to its position function.</summary>
        <remarks />
      </Docs>
    </Member>
    <Member MemberName="ReorderChild">
      <MemberSignature Language="C#" Value="public void ReorderChild (Gtk.Widget child, int position);" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="child" Type="Gtk.Widget" />
        <Parameter Name="position" Type="System.Int32" />
      </Parameters>
      <Docs>
        <summary>Moves a <see cref="T:Gtk.MenuItem" /> to a new position within the <see cref="T:Gtk.Menu" />.</summary>
        <param name="child">The <see cref="T:Gtk.MenuItem" /> to move.</param>
        <param name="position">The new position to place <paramref name="child" />. Positions are numbered from 0 to n-1.</param>
        <remarks />
      </Docs>
    </Member>
    <Member MemberName=".ctor">
      <MemberSignature Language="C#" Value="public Menu (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>
        <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 Menu ();" />
      <MemberType>Constructor</MemberType>
      <ReturnValue />
      <Parameters />
      <Docs>
        <summary>A constructor.</summary>
        <remarks />
      </Docs>
    </Member>
    <Member MemberName="Active">
      <MemberSignature Language="C#" Value="public Gtk.Widget Active { get; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>Gtk.Widget</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Returns the selected menu item from the menu.</summary>
        <value>The <see cref="T:Gtk.MenuItem" /> that was last selected in the menu. If a selection has not yet been made, the first menu item is selected.</value>
        <remarks>
          <para>
          This is used by the <see cref="T:Gtk.OptionMenu" />.
         </para>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="AccelPath">
      <MemberSignature Language="C#" Value="public string AccelPath { set; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>System.String</ReturnType>
      </ReturnValue>
      <Parameters>
      </Parameters>
      <Docs>
        <summary>Sets an accelerator path for this menu from which accelerator paths for its immediate children, its menu items, can be constructed.</summary>
        <value>void</value>
        <remarks>
          <para>
          The main purpose of this function is to spare the programmer the inconvenience of having to call <see cref="P:Gtk.MenuItem.AccelPath" /> on each menu item that should support runtime user changable accelerators. Instead, by just calling <see cref="P:Gtk.MenuItem.AccelPath" /> on their parent, each menu item of this menu, that contains a label describing its purpose, automatically gets an accel path assigned. 
         </para>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="AttachWidget">
      <MemberSignature Language="C#" Value="public Gtk.Widget AttachWidget { get; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>Gtk.Widget</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>Returns the <see cref="T:Gtk.Widget" /> that the menu is attached to.</summary>
        <value>The <see cref="T:Gtk.Widget" /> that the menu is attached to.</value>
        <remarks />
      </Docs>
    </Member>
    <Member MemberName="TearoffState">
      <MemberSignature Language="C#" Value="public bool TearoffState { set; get; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>System.Boolean</ReturnType>
      </ReturnValue>
      <Parameters>
      </Parameters>
      <Docs>
        <summary>Sets or obtains the tearoff state of the menu.</summary>
        <value>Returns <see langword="true" /> if the menu is currently torn off.</value>
        <remarks>
          <para>
          A menu is normally displayed as drop down menu which persists as long as the menu is active. It can also be displayed as a tearoff menu which persists until it is closed or reattached.
         </para>
        </remarks>
      </Docs>
      <Attributes>
        <Attribute>
          <AttributeName>GLib.Property(Name="tearoff-state")</AttributeName>
        </Attribute>
      </Attributes>
    </Member>
    <Member MemberName="AccelGroup">
      <MemberSignature Language="C#" Value="public Gtk.AccelGroup AccelGroup { set; get; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>Gtk.AccelGroup</ReturnType>
      </ReturnValue>
      <Parameters>
      </Parameters>
      <Docs>
        <summary>Sets or obtains the <see cref="T:Gtk.AccelGroup" /> which holds global accelerators for the menu.</summary>
        <value>The <see cref="T:Gtk.AccelGroup" /> associated with the menu.</value>
        <remarks>
          <para>
          This accelerator group needs to also be added to all windows that this menu is being used in with <see cref="M:Gtk.Window.AddAccelGroup" />, in order for those windows to support all the accelerators contained in this group.
         </para>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="Title">
      <MemberSignature Language="C#" Value="public string Title { set; get; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>System.String</ReturnType>
      </ReturnValue>
      <Parameters>
      </Parameters>
      <Docs>
        <summary>Sets or obtains the title for the menu.</summary>
        <value>The title of the menu, or <see langword="null" /> if the menu has no title set on it. This string is owned by the widget and should not be modified or freed.</value>
        <remarks>
          <para>
          The title is displayed when the menu is shown as a tearoff menu.
         </para>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="TearoffTitle">
      <MemberSignature Language="C#" Value="public string TearoffTitle { set; get; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>System.String</ReturnType>
      </ReturnValue>
      <Parameters>
      </Parameters>
      <Docs>
        <summary>The title of this menu when it is torn off</summary>
        <value>an object of type <see cref="T:System.String" /></value>
        <remarks />
      </Docs>
      <Attributes>
        <Attribute>
          <AttributeName>GLib.Property(Name="tearoff-title")</AttributeName>
        </Attribute>
      </Attributes>
    </Member>
    <Member MemberName="Screen">
      <MemberSignature Language="C#" Value="public Gdk.Screen Screen { set; get; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>Gdk.Screen</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>The physical screen this menu is placed on.</summary>
        <value>a <see cref="T:Gdk.Screen" /></value>
        <remarks />
      </Docs>
    </Member>
    <Member MemberName="SetActive">
      <MemberSignature Language="C#" Value="public void SetActive (uint index_);" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="index_" Type="System.UInt32" />
      </Parameters>
      <Docs>
        <summary>Selects the specified menu item within the menu.</summary>
        <param name="index_">a <see cref="T:System.UInt32" /></param>
        <remarks>
          <para>
          This is used by the <see cref="T:Gtk.OptionMenu" /> and should not be used by anyone else.
         </para>
        </remarks>
      </Docs>
    </Member>
    <Member MemberName="GType">
      <MemberSignature Language="C#" Value="public static GLib.GType GType { get; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>GLib.GType</ReturnType>
      </ReturnValue>
      <Parameters />
      <Docs>
        <summary>GType Property.</summary>
        <value>a <see cref="T:GLib.GType" /></value>
        <remarks>Returns the native <see cref="T:GLib.GType" /> value for <see cref="T:Gtk.Menu" />.</remarks>
      </Docs>
    </Member>
    <Member MemberName=".ctor">
      <MemberSignature Language="C#" Value="protected Menu (GLib.GType gtype);" />
      <MemberType>Constructor</MemberType>
      <ReturnValue />
      <Parameters>
        <Parameter Name="gtype" Type="GLib.GType" />
      </Parameters>
      <Docs>
        <summary>Protected Constructor.</summary>
        <param name="gtype">a <see cref="T:GLib.GType" /></param>
        <remarks>Chain to this constructor if you have manually registered a native <see cref="T:GLib.GType" /> value for your subclass.</remarks>
      </Docs>
      <Attributes>
        <Attribute>
          <AttributeName>System.Obsolete(Message=null, IsError=False)</AttributeName>
        </Attribute>
      </Attributes>
    </Member>
    <Member MemberName="Monitor">
      <MemberSignature Language="C#" Value="public int Monitor { set; };" />
      <MemberType>Property</MemberType>
      <ReturnValue>
        <ReturnType>System.Int32</ReturnType>
      </ReturnValue>
      <Docs>
        <summary>The number of the monitor on which the menu should be popped up.</summary>
        <value>a <see cref="T:System.Int32" /></value>
        <remarks>
        </remarks>
        <since version="Gtk# 2.4" />
      </Docs>
    </Member>
    <Member MemberName="Attach">
      <MemberSignature Language="C#" Value="public void Attach (Gtk.Widget child, uint left_attach, uint right_attach, uint top_attach, uint bottom_attach);" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>System.Void</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="child" Type="Gtk.Widget" />
        <Parameter Name="left_attach" Type="System.UInt32" />
        <Parameter Name="right_attach" Type="System.UInt32" />
        <Parameter Name="top_attach" Type="System.UInt32" />
        <Parameter Name="bottom_attach" Type="System.UInt32" />
      </Parameters>
      <Docs>
        <summary>Adds a new <see cref="T:Gtk.MenuItem" /> to a (table) menu.</summary>
        <param name="child">a <see cref="T:Gtk.Widget" />, should be a <see cref="T:Gtk.MenuItem" /></param>
        <param name="left_attach">a <see cref="T:System.UInt32" /></param>
        <param name="right_attach">a <see cref="T:System.UInt32" /></param>
        <param name="top_attach">a <see cref="T:System.UInt32" /></param>
        <param name="bottom_attach">a <see cref="T:System.UInt32" /></param>
        <remarks>
          <para>The number of 'cells' that
	    an item will occupy is specified by <paramref name="left_attach" />, 
	    <paramref name="right_attach" />, <paramref name="top_attach" /> and 
	    <paramref name="bottom_attach" />. These each represent the leftmost,
	    rightmost, uppermost and lower column and row numbers of the table.
	    (Columns and rows are indexed from zero).</para>
          <para>Note that this function is not related to <see cref="M:Gtk.Menu.Detach" />.</para>
        </remarks>
        <since version="Gtk# 2.4" />
      </Docs>
    </Member>
    <Member MemberName="GetForAttachWidget">
      <MemberSignature Language="C#" Value="public static GLib.List GetForAttachWidget (Gtk.Widget widget);" />
      <MemberType>Method</MemberType>
      <ReturnValue>
        <ReturnType>GLib.List</ReturnType>
      </ReturnValue>
      <Parameters>
        <Parameter Name="widget" Type="Gtk.Widget" />
      </Parameters>
      <Docs>
        <summary>To be added</summary>
        <param name="widget">a <see cref="T:Gtk.Widget" /></param>
        <returns>a <see cref="T:GLib.List" /></returns>
        <remarks>To be added</remarks>
        <since version="Gtk# 2.6" />
      </Docs>
    </Member>
  </Members>
</Type>