Reference Guide
GdPicture14.WPF Namespace / GdViewer Class / Clear Method
Example





In This Topic
    Clear Method (GdViewer)
    In This Topic
    Clears the GdViewer control, in other words, erases the displayed document from the control. This method only cleans up the displayed area of the GdViewer control, it does not close the loaded document. It also clears the rectangle of area selection, if any is defined, using the ClearRect method internally. You can display the loaded document using the Redraw method again.
    Syntax
    'Declaration
     
    
    Public Sub Clear() 
    public void Clear()
    public procedure Clear(); 
    public function Clear();
    public: void Clear(); 
    public:
    void Clear(); 
    Remarks
    Please, be aware that the currently displayed document is not closed using this method.
    Example
    How to clear the current viewer control.
    'We assume that the GdViewer1 control has been properly integrated.
    If GdViewer1.DisplayFromFile("") = GdPictureStatus.OK Then
        'Do your stuff here ...
        GdViewer1.Clear()
        '...
        If GdViewer1.Redraw() <> GdPictureStatus.OK Then
            MessageBox.Show("The file can't be redrawn. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.Clear")
        End If
    End If
    //We assume that the GdViewer1 control has been properly integrated.
    if (GdViewer1.DisplayFromFile("") == GdPictureStatus.OK)
    {
        //Do your stuff here ...
        GdViewer1.Clear();
        //...
        if (GdViewer1.Redraw() != GdPictureStatus.OK)
            MessageBox.Show("The file can't be redrawn. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.Clear");
    }
    See Also