SetFocusedIndexSync(Int32) Method (ImageViewer)

In This Topic

Sets a new value of the FocusedIndex property synchronously.

Syntax

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

'Declaration

Public Sub SetFocusedIndexSync( _
   ByVal newFocusedIndexNew value of the FocusedIndex property.
 As System.Int32 _
)

public void SetFocusedIndexSync(
   System.Int32 newFocusedIndex
)

public: void SetFocusedIndexSync(
   System.Int32 newFocusedIndex
)

public:
void SetFocusedIndexSync(
   System.Int32 newFocusedIndex
)

Parameters

newFocusedIndex: New value of the FocusedIndex property.

Remarks

This method sets the value of the FocusedIndex property and waits while new image will be loaded in the viewer.

Example

This C#/VB.NET code shows how to start animation in ImageViewer if image viewer uses images from Images property.

VB.NET


''' <summary>
''' Shows animation in image viewer.
''' </summary>
''' <param name="viewer">An image viewer.</param>
''' <param name="delay">The animation delay in milliseconds.</param>
Private Sub ShowAnimation(viewer As Vintasoft.Imaging.UI.ImageViewer, delay As Integer)
    ' for each image in image collection of image viewer
    For i As Integer = 0 To viewer.Images.Count - 1
        ' change image in image viewer
        viewer.SetFocusedIndexSync(i)
        ' sleep for a while
        System.Threading.Thread.Sleep(delay)
    Next
End Sub


/// <summary>
/// Shows animation in image viewer.
/// </summary>
/// <param name="viewer">An image viewer.</param>
/// <param name="delay">The animation delay in milliseconds.</param>
private void ShowAnimation(Vintasoft.Imaging.UI.ImageViewer viewer, int delay)
{
    // for each image in image collection of image viewer
    for (int i = 0; i < viewer.Images.Count; i++)
    {
        // change image in image viewer
        viewer.SetFocusedIndexSync(i);
        // sleep for a while
        System.Threading.Thread.Sleep(delay);
    }
}

Requirements

Target Platforms: .NET9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Reference

ImageViewer Class
ImageViewer Members

Image

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