如何：向 Outlook 添加自定义菜单和菜单项

此示例在 Microsoft Office Outlook 中创建一个菜单。这个包含一个菜单项的菜单将出现在应用程序的顶部。单击菜单项时，代码将显示一条显示菜单项标题的消息。

private Office.CommandBar menuBar;
private Office.CommandBarPopup newMenuBar;
private Office.CommandBarButton buttonOne;
private string menuTag = "A unique tag";

private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
    RemoveMenubar();
    AddMenuBar();
}

private void AddMenuBar()
{
    try
    {
        menuBar = this.Application.ActiveExplorer().CommandBars.ActiveMenuBar;
        newMenuBar = (Office.CommandBarPopup)menuBar.Controls.Add(
            Office.MsoControlType.msoControlPopup,missing,
            missing, missing, false);
        if (newMenuBar != null)
        {
            newMenuBar.Caption = "New Menu";
            newMenuBar.Tag = menuTag;
            buttonOne = (Office.CommandBarButton)newMenuBar.Controls.
            Add(Office.MsoControlType.msoControlButton, missing,
                missing, 1, true);
            buttonOne.Style = Office.MsoButtonStyle.
                msoButtonIconAndCaption;
            buttonOne.Caption = "Button One";
            buttonOne.FaceId = 65;
            buttonOne.Tag = "c123";
            buttonOne.Click += new
                Office._CommandBarButtonEvents_ClickEventHandler(
                buttonOne_Click);
            newMenuBar.Visible = true;
        }
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}

private void buttonOne_Click(Office.CommandBarButton ctrl,
    ref bool cancel)
{
    MessageBox.Show("You clicked: " + ctrl.Caption,
        "Custom Menu", MessageBoxButtons.OK);
}
private void RemoveMenubar()
{
    // If the menu already exists, remove it.
    try
    {
        Office.CommandBarPopup foundMenu = (Office.CommandBarPopup)
            this.Application.ActiveExplorer().CommandBars.ActiveMenuBar.
            FindControl(Office.MsoControlType.msoControlPopup,
            missing, menuTag, true, true);
        if (foundMenu != null)
        {
            foundMenu.Delete(true);
        }
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}