StrokeCollection 构造函数

定义

命名空间:

System.Windows.Ink

程序集:

PresentationCore.dll

初始化 StrokeCollection 类的新实例。

重载

StrokeCollection()	初始化 StrokeCollection 类的新实例。
StrokeCollection(IEnumerable<Stroke>)	初始化包含指定笔画的 StrokeCollection 类的新实例。
StrokeCollection(Stream)	从墨迹序列化格式 (ISF) 的指定 StrokeCollection 初始化 Stream。

StrokeCollection()

初始化 StrokeCollection 类的新实例。

public:
 StrokeCollection();

public StrokeCollection ();

Public Sub New ()

StrokeCollection(IEnumerable<Stroke>)

初始化包含指定笔画的 StrokeCollection 类的新实例。

public:
 StrokeCollection(System::Collections::Generic::IEnumerable<System::Windows::Ink::Stroke ^> ^ strokes);

public StrokeCollection (System.Collections.Generic.IEnumerable<System.Windows.Ink.Stroke> strokes);

new System.Windows.Ink.StrokeCollection : seq<System.Windows.Ink.Stroke> -> System.Windows.Ink.StrokeCollection

Public Sub New (strokes As IEnumerable(Of Stroke))

参数

strokes

IEnumerable<Stroke>

要添加到 StrokeCollection 的笔画。

StrokeCollection(Stream)

从墨迹序列化格式 (ISF) 的指定 StrokeCollection 初始化 Stream。

public:
 StrokeCollection(System::IO::Stream ^ stream);

public StrokeCollection (System.IO.Stream stream);

new System.Windows.Ink.StrokeCollection : System.IO.Stream -> System.Windows.Ink.StrokeCollection

Public Sub New (stream As Stream)

参数

stream

Stream

包含墨迹数据的流。

示例

以下示例演示如何保存和加载 a StrokeCollection. 此示例假定有一个 InkCanvas 调用 inkCanvas1。

private void SaveStrokes_Click(object sender, RoutedEventArgs e)
{
    FileStream fs = null;

    try
    {
        fs = new FileStream(inkFileName, FileMode.Create);
        inkCanvas1.Strokes.Save(fs);
    }
    finally
    {
        if (fs != null)
        {
            fs.Close();
        }
    }
}

Private Sub SaveStrokes_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)

    Dim fs As FileStream = Nothing

    Try
        fs = New FileStream(inkFileName, FileMode.Create)
        inkCanvas1.Strokes.Save(fs)
    Finally
        If Not fs Is Nothing Then
            fs.Close()
        End If
    End Try

End Sub

private void LoadStrokes_Click(object sender, RoutedEventArgs e)
{
    FileStream fs = null;

    if (!File.Exists(inkFileName))
    {
        MessageBox.Show("The file you requested does not exist." +
            " Save the StrokeCollection before loading it.");
        return;
    }

    try
    {
        fs = new FileStream(inkFileName,
            FileMode.Open, FileAccess.Read);
        StrokeCollection strokes = new StrokeCollection(fs);
        inkCanvas1.Strokes = strokes;
    }
    finally
    {
        if (fs != null)
        {
            fs.Close();
        }
    }
}

Private Sub LoadStrokes_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)

    Dim fs As FileStream = Nothing

    If Not File.Exists(inkFileName) Then
        MessageBox.Show("The file you requested does not exist." & _
            " Save the StrokeCollection before loading it.")
        Return
    End If

    Try
        fs = New FileStream(inkFileName, _
            FileMode.Open, FileAccess.Read)
        Dim strokes As StrokeCollection = New StrokeCollection(fs)
        inkCanvas1.Strokes = strokes
    Finally
        If Not fs Is Nothing Then
            fs.Close()
        End If
    End Try


End Sub