AnnotationSelected Event (GdViewer)

In This Topic

This event is raised when a GdPicture/XMP annotation has been selected or deselected.

Please check the corresponded GdViewer.AnnotationSelectedEventHandler for given parameters.

Syntax

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

'Declaration
 
Public Event AnnotationSelected As GdViewer.AnnotationSelectedEventHandler

public event GdViewer.AnnotationSelectedEventHandler AnnotationSelected

public event AnnotationSelected: GdViewer.AnnotationSelectedEventHandler;

In JScript, you can handle the events defined by another class, but you cannot define your own.

public: __event GdViewer.AnnotationSelectedEventHandler* AnnotationSelected

public:
event GdViewer.AnnotationSelectedEventHandler^ AnnotationSelected

Remarks

Be aware, that this event only handles GdPicture/XMP annotations.

Example

How to add this event to your GdViewer control. This example shows you how to find out if the concerned annotation is selected or deselected.

VB.NET
C#

'We assume that the GdViewer1 control has been properly integrated.
Friend WithEvents GdViewer1 As GdPicture14.GdViewer
            
'Add the event.
AddHandler GdViewer1.AnnotationSelected, AddressOf GdViewer1_AnnotationSelected
            
'Define the event.
Sub GdViewer1_AnnotationSelected(ByVal AnnotationIdx As Integer) Handles GdViewer1.AnnotationSelected
    Dim annot As GdPicture14.Annotations.Annotation = GdViewer1.GetAnnotationFromIdx(AnnotationIdx)
    If annot.Selected Then
        MessageBox.Show("The annotation with the index " + AnnotationIdx.ToString() + " has been selected.", "GdViewer.AnnotationSelected")
    Else
        MessageBox.Show("The annotation with the index " + AnnotationIdx.ToString() + " has been deselected.", "GdViewer.AnnotationSelected")
    End If
End Sub

//We assume that the GdViewer1 control has been properly integrated.
            
//Add the event.
GdViewer1.AnnotationSelected += GdViewer1_AnnotationSelected;
            
//Define the event.
void GdViewer1_AnnotationSelected(int AnnotationIdx)
{
    GdPicture14.Annotations.Annotation annot = GdViewer1.GetAnnotationFromIdx(AnnotationIdx);
    if (annot.Selected)
        MessageBox.Show("The annotation with the index " + AnnotationIdx.ToString() + " has been selected.", "GdViewer.AnnotationSelected");
    else
        MessageBox.Show("The annotation with the index " + AnnotationIdx.ToString() + " has been deselected.", "GdViewer.AnnotationSelected");
}

Reference

GdViewer Class
GdViewer Members
GdViewer.AnnotationSelectedEventHandler Delegate
GetAnnotationFromIdx Method
Annotation Class