Cursor.Buttons - свойство

Статья
11/04/2008

Обновлен: Ноябрь 2007

Gets the CursorButtons collection that is available on a known Cursor.

Пространство имен: Microsoft.Ink
Сборка: Microsoft.Ink (в Microsoft.Ink.dll)

Синтаксис

'Декларация
Public ReadOnly Property Buttons As CursorButtons
'Применение
Dim instance As Cursor
Dim value As CursorButtons

value = instance.Buttons

public CursorButtons Buttons { get; }

public:
property CursorButtons^ Buttons {
    CursorButtons^ get ();
}

/** @property */
public CursorButtons get_Buttons()

public function get Buttons () : CursorButtons

Значение свойства

Тип: Microsoft.Ink.CursorButtons
The CursorButtons collection that is available on a known Cursor.

Заметки

For a pen, the buttons may include the writing tip, the eraser end, and the barrel button.

Примечание.
This function can be re-entered if called within certain message handlers, causing unexpected results. Take care to avoid a reentrant call when handling any of the following messages: WM_ACTIVATE, WM_ACTIVATEAPP, WM_NCACTIVATE, WM_PAINT; WM_SYSCOMMAND if wParam is set to SC_HOTKEY or SC_TASKLIST; and WM_SYSKEYDOWN (when processing Alt-Tab or Alt-Esc key combinations). This is an issue with single-threaded apartment model applications.

This function can be re-entered if called within certain message handlers, causing unexpected results. Take care to avoid a reentrant call when handling any of the following messages: WM_ACTIVATE, WM_ACTIVATEAPP, WM_NCACTIVATE, WM_PAINT; WM_SYSCOMMAND if wParam is set to SC_HOTKEY or SC_TASKLIST; and WM_SYSKEYDOWN (when processing Alt-Tab or Alt-Esc key combinations). This is an issue with single-threaded apartment model applications.

Примеры

This C# example returns a report on the attributes of all of the cursors that are encountered by the InkCollector object passed in as a parameter.

using Microsoft.Ink;
//. . .
public string CursorReport(InkCollector theInkCollector)
{
    string theReport = "The InkCollector has encountered the following cursors so far:" + Environment.NewLine;
    // Get the Cursors collection from the InkCollector
    Microsoft.Ink.Cursors theCursors = theInkCollector.Cursors;
    // Prevent changes to the collection while we iterate over it.
    lock( theCursors.SyncRoot )
    {
        theReport += "Count of cursors: " + theCursors.Count + Environment.NewLine + Environment.NewLine ;
        foreach (Microsoft.Ink.Cursor cursor in theCursors)
        {
            theReport += "Cursor Name: " + cursor.Name + Environment.NewLine;
            theReport += "Cursor ToString: " + cursor.ToString() + Environment.NewLine;
            theReport += "Tablet Name: " + cursor.Tablet.Name  + Environment.NewLine;
            theReport += "Cursor Id: " + cursor.Id.ToString()  + Environment.NewLine;
            theReport += "Cursor is inverted: " + cursor.Inverted.ToString()  + Environment.NewLine;
            theReport += "Cursor Buttons:" + Environment.NewLine;
            foreach (CursorButton button in cursor.Buttons)
            {
                CursorButtonState theState = button.State;
                theReport += "    Button Name: " + button.Name + Environment.NewLine;
                theReport += "    State: " + button.State.ToString() + Environment.NewLine;
                theReport += "    Id: " + button.Id.ToString()  + Environment.NewLine + Environment.NewLine;
            }
        }
    }
    return theReport;
}

This Microsoft® Visual Basic® .NET example returns a report on the attributes of all of the cursors that are encountered by the InkCollector object passed in as a parameter.

Imports Microsoft.Ink
'. . .
Public Function CursorReport(ByVal theInkCollector As InkCollector) _
    As String
    Dim theReport As String = "The InkCollector has encountered " & _
        "the following cursors so far:" & vbCrLf
    ' Get the Cursors collection from the InkCollector
    Dim theCursors As Cursors = theInkCollector.Cursors
    ' Prevent changes to the collection while we iterate over it.
    SyncLock theCursors.SyncRoot
        theReport &= "Count of cursors: " & theCursors.Count & vbCrLf
        Dim theCursor As Cursor
        For Each theCursor In theCursors
            theReport &= "Cursor Name: " & theCursor.Name & vbCrLf
            theReport &= "Cursor ToString: " & theCursor.ToString() & _
                vbCrLf
            theReport &= "Tablet Name: " & theCursor.Tablet.Name & vbCrLf
            theReport &= "Cursor Id: " & theCursor.Id.ToString() & vbCrLf
            theReport &= "Cursor is inverted: " & _
                theCursor.Inverted.ToString() & vbCrLf
            theReport &= "Cursor Buttons:" & vbCrLf
            Dim theButton As CursorButton
            For Each theButton In theCursor.Buttons
                Dim theState As CursorButtonState = theButton.State
                theReport &= "    Button Name: " & theButton.Name & vbCrLf
                theReport &= "    State: " & _
                    theButton.State.ToString() & vbCrLf
                theReport &= "    Id: " & theButton.Id.ToString() & _
                    vbCrLf & vbCrLf
            Next
        Next
    End SyncLock
    Return theReport
End Function

Платформы

Windows Vista

Среды .NET Framework и .NET Compact Framework поддерживают не все версии каждой платформы. Поддерживаемые версии перечислены в разделе Требования к системе для .NET Framework.