PenInputPanel.Left 属性
已否决。获取 PenInputPanel 对象的左边缘的水平(即 x 轴)位置(以屏幕坐标表示)。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 ReadOnly Property Left As Integer
用法
Dim instance As PenInputPanel
Dim value As Integer
value = instance.Left
public int Left { get; }
public:
property int Left {
int get ();
}
/** @property */
public int get_Left()
public function get Left () : int
属性值
类型:System.Int32
PenInputPanel 对象左边缘的水平(即 x 轴)位置(以屏幕坐标表示)。
备注
若要显式重写 PenInputPanel 对象的自动定位行为,可以使用该对象的 Left 和 Top 属性确定笔输入面板的当前位置。
通过在 PanelMoving 事件期间侦听 PenInputPanelMovingEventArgs 对象的 Left 和 Top 属性,还可以重写 PenInputPanel 对象的自动定位行为。
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。该事件处理程序使用 Left 属性将一个句子添加到 theInkEdit 的内容中,用以描述 PenInputPanel 对象左边缘的位置(以屏幕坐标表示)。
[C#]
//...
// Declare 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 (e.NewVisibility)
{
// Display the left edge of the
// panel in the attached edit control
theSenderPanel.AttachedEditControl.Text +=
"The left edge of the panel is at ";
theSenderPanel.AttachedEditControl.Text += theSenderPanel.Left.ToString();
theSenderPanel.AttachedEditControl.Text += " pixels.\n";
}
}
}
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。该事件处理程序使用 Left 属性将一个句子添加到 theInkEdit 的内容中,用以描述 PenInputPanel 对象左边缘的位置(以屏幕坐标表示)。
[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 e.NewVisibility Then
' Display the left edge of the
' panel in the attached edit control
theSenderPanel.AttachedEditControl.Text += _
"The left edge of the panel is at "
theSenderPanel.AttachedEditControl.Text += _
theSenderPanel.Left.ToString()
theSenderPanel.AttachedEditControl.Text += _
" pixels." + ControlChars.Lf
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