ClearSelectedText Method (GdViewer)

In This Topic

Clears the last text selection made by the user in the GdViewer control, that means both the latest selected text, as well as the selected text regions, are released.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Sub ClearSelectedText()

public void ClearSelectedText()

public procedure ClearSelectedText();

public function ClearSelectedText();

public: void ClearSelectedText();

public:
void ClearSelectedText();

Remarks

The GetStat method can be subsequently used to determine if this method has been successful.

Example

How to select all text on the currently displayed page in the viewer, how to extract it and how to clear the selection.

VB.NET
C#

'We assume that the GdViewer1 control has been properly integrated.
If GdViewer1.DisplayFromFile("") = GdPictureStatus.OK Then
    'Enabling text selection.
    GdViewer1.EnableTextSelection = True
    If GdViewer1.SelectAllText() = GdPictureStatus.OK Then
        Dim selected_text As String = GdViewer1.GetSelectedText()
        If GdViewer1.GetStat() = GdPictureStatus.OK Then
            'Do your stuff with the selected_text.
            GdViewer1.ClearSelectedText()
        Else
            MessageBox.Show("The text can't be extracted. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.ClearSelectedText")
        End If
    Else
        MessageBox.Show("The text can't be selected. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.ClearSelectedText")
    End If
Else
    MessageBox.Show("The file can't be displayed. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.ClearSelectedText")
End If

//We assume that the GdViewer1 control has been properly integrated.
if (GdViewer1.DisplayFromFile("") == GdPictureStatus.OK)
{
    //Enabling text selection.
    GdViewer1.EnableTextSelection = true;
    if (GdViewer1.SelectAllText() == GdPictureStatus.OK)
    {
        string selected_text = GdViewer1.GetSelectedText();
        if (GdViewer1.GetStat() == GdPictureStatus.OK)
        {
            //Do your stuff with the selected_text.
            GdViewer1.ClearSelectedText();
        }
        else
            MessageBox.Show("The text can't be extracted. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.ClearSelectedText");
    }
    else
        MessageBox.Show("The text can't be selected. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.ClearSelectedText");
}
else
    MessageBox.Show("The file can't be displayed. Status: " + GdViewer1.GetStat().ToString(), "GdViewer.ClearSelectedText");

Reference

GdViewer Class
GdViewer Members
SelectAllText Method
GetSelectedText Method
GetSelectedTextRegions Method
EnableTextSelection Property