Leadtools.WinForms Send comments on this topic. | Back to Introduction - All Topics | Help Version 16.5.9.25
SizeModeChanged Event
See Also  Example
Leadtools.WinForms Namespace > RasterPictureBox Class : SizeModeChanged Event



Occurs when the value of the SizeMode property changes.

Syntax

Visual Basic (Declaration) 
Public Event SizeModeChanged() As EventHandler
Visual Basic (Usage)Copy Code
Dim instance As RasterPictureBox
Dim handler As EventHandler
 
AddHandler instance.SizeModeChanged, handler
C# 
public event EventHandler SizeModeChanged()
C++/CLI 
public:
event EventHandler^ SizeModeChanged();

Example

This example uses the SizeModeChanged event to show how the SizeMode has changed.

Visual BasicCopy Code
Private Sub viewer_SizeModeChanged(ByVal sender As Object, ByVal e As EventArgs)
    Dim viewer As RasterPictureBox = CType(IIf(TypeOf sender Is RasterPictureBox, sender, Nothing), RasterPictureBox)
    Dim s As String = String.Format("SizeModeChanged Event: {0}", viewer.SizeMode.ToString())
    MessageBox.Show(s)
End Sub
Public Sub RasterPictureBox_SizeModeChanged(ByVal viewer As RasterPictureBox)
    AddHandler viewer.SizeModeChanged, AddressOf viewer_SizeModeChanged

    Select Case viewer.SizeMode
        Case RasterPictureBoxSizeMode.AutoSize
            viewer.SizeMode = RasterPictureBoxSizeMode.CenterImage

        Case RasterPictureBoxSizeMode.CenterImage
            viewer.SizeMode = RasterPictureBoxSizeMode.Normal

        Case RasterPictureBoxSizeMode.Normal
            viewer.SizeMode = RasterPictureBoxSizeMode.StretchImage

        Case RasterPictureBoxSizeMode.StretchImage
            viewer.SizeMode = RasterPictureBoxSizeMode.Fit

        Case RasterPictureBoxSizeMode.Fit
            viewer.SizeMode = RasterPictureBoxSizeMode.AutoSize
    End Select

    RemoveHandler viewer.SizeModeChanged, AddressOf viewer_SizeModeChanged
End Sub
C#Copy Code
private void viewer_SizeModeChanged(object sender, EventArgs e) 
{ 
   RasterPictureBox viewer = sender as RasterPictureBox; 
   string s = string.Format("SizeModeChanged Event: {0}", viewer.SizeMode.ToString()); 
   MessageBox.Show(s); 
} 
public void RasterPictureBox_SizeModeChanged(RasterPictureBox viewer) 
{ 
   viewer.SizeModeChanged += new EventHandler(viewer_SizeModeChanged); 
 
   switch (viewer.SizeMode) 
   { 
      case RasterPictureBoxSizeMode.AutoSize: 
         viewer.SizeMode = RasterPictureBoxSizeMode.CenterImage; 
         break; 
 
      case RasterPictureBoxSizeMode.CenterImage: 
         viewer.SizeMode = RasterPictureBoxSizeMode.Normal; 
         break; 
 
      case RasterPictureBoxSizeMode.Normal: 
         viewer.SizeMode = RasterPictureBoxSizeMode.StretchImage; 
         break; 
 
      case RasterPictureBoxSizeMode.StretchImage: 
         viewer.SizeMode = RasterPictureBoxSizeMode.Fit; 
         break; 
 
      case RasterPictureBoxSizeMode.Fit: 
         viewer.SizeMode = RasterPictureBoxSizeMode.AutoSize; 
         break; 
   } 
 
   viewer.SizeModeChanged -= new EventHandler(viewer_SizeModeChanged); 
}

Remarks

This event is raised if the SizeMode property is changed by either a programmatic modification or user interaction.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also