PenInputPanel.Visible 属性

已否决。获取或设置一个值，该值指示 PenInputPanel 对象是否可见。PenInputPanel 已由 Microsoft.Ink.TextInput 替换。

命名空间：  Microsoft.Ink
程序集：  Microsoft.Ink（在 Microsoft.Ink.dll 中）

语法

声明
Public Property Visible As Boolean
用法
Dim instance As PenInputPanel
Dim value As Boolean

value = instance.Visible

instance.Visible = value

public bool Visible { get; set; }

public:
property bool Visible {
    bool get ();
    void set (bool value);
}

/** @property */
public boolean get_Visible()
/** @property */
public  void set_Visible(boolean value)

public function get Visible () : boolean
public function set Visible (value : boolean)

属性值

类型：System.Boolean
如果笔输入面板可见，则为 true；否则为 false。

备注

仅当附加控件具有焦点时，才能将 Visible 属性设置为 true。否则，设置该属性将生成错误。

安全说明：
如果在部分信任环境下使用，则除了 PenInputPanel 所需的权限以外，该属性还需要 SecurityPermissionFlag.AllFlags 权限。有关更多信息，请参见Security and Trust。

示例

此 C# 示例创建 PenInputPanel 对象 thePenInputPanel，并将它附加到 InkEdit 控件 theInkEdit。然后，它附加 VisibleChanged 事件处理程序 VisibleChanged_Event。如果 Visible 属性设置为 true，则该事件处理程序将一个句子添加到 theInkEdit 的内容中。

[C#]

//...

// Delcare the PenInputPanel object
PenInputPanel thePenInputPanel;

public Form1()
{
    // Required for Windows Form Designer support
    InitializeComponent();

    // Create and attach the new PenInputPanel to an InkEdit control.
    thePenInputPanel = new PenInputPanel(theInkEdit);

    // Add a VisibleChanged event handler
    thePenInputPanel.VisibleChanged +=
        new PenInputPanelVisibleChangedEventHandler(VisibleChanged_Event);
}

//...

public void VisibleChanged_Event(object sender,
                                 PenInputPanelVisibleChangedEventArgs e)
{
    // Make sure the object that generated
    // the event is a PenInputPanel object
    if (sender is PenInputPanel)
    {
        PenInputPanel theSenderPanel = (PenInputPanel)sender;

        // When the panel has become visible...
        if (theSenderPanel.Visible)
        {
            // Display a message in the attached edit control
            theSenderPanel.AttachedEditControl.Text += "The panel is visible." + Environment.NewLine;
        }
    }
}

此 Microsoft(R) Visual Basic(R) .NET 示例创建 PenInputPanel 对象 thePenInputPanel，并将它附加到 InkEdit 控件 theInkEdit。然后，它附加 VisibleChanged 事件处理程序 VisibleChanged_Event。如果 Visible 属性设置为 true，则该事件处理程序将一个句子添加到 theInkEdit 的内容中。

[Visual Basic]

'...

' Declare the PenInputPanel object
Dim thePenInputPanel As PenInputPanel

Public Sub New()
    MyBase.New()

    ' Required for Windows Form Designer support
    InitializeComponent()

    ' Create and attach the new PenInputPanel to an InkEdit control.
    thePenInputPanel = New PenInputPanel(theInkEdit)

    ' Add a VisibleChanged event handler
    AddHandler thePenInputPanel.VisibleChanged, _
               AddressOf VisibleChanged_Event
End Sub 'New

'...

Public Sub VisibleChanged_Event(sender As Object, e As _
                                PenInputPanelVisibleChangedEventArgs)
    ' Make sure the object that generated
    ' the event is a PenInputPanel object
    If TypeOf sender Is PenInputPanel Then
       Dim theSenderPanel As PenInputPanel = CType(sender, PenInputPanel)

       ' When the panel has become visible...
       If theSenderPanel.Visible Then
          ' Display a message in the attached edit control
          theSenderPanel.AttachedEditControl.Text &= _
                   "The panel is visible." & Environment.NewLine
       End If
    End If
End Sub 'VisibleChanged_Event

平台

Windows Vista

.NET Framework 和 .NET Compact Framework 并不是对每个平台的所有版本都提供支持。有关支持的版本的列表，请参见.NET Framework 系统要求。

版本信息

.NET Framework

受以下版本支持：3.0

另请参见

参考

PenInputPanel 类

PenInputPanel 成员

Microsoft.Ink 命名空间

PenInputPanel.AutoShow