DragDropSelectionTool Class

In This Topic

Visual tool for dragging and dropping an image region in image viewer.

Object Model

Syntax

'Declaration

Public Class DragDropSelectionTool
   Inherits RectangularSelectionTool

public class DragDropSelectionTool : RectangularSelectionTool

public __gc class DragDropSelectionTool : public RectangularSelectionTool*

public ref class DragDropSelectionTool : public RectangularSelectionTool^

Remarks

Rectangular region of image in image viewer can be drag-and dropped as follows:

place the mouse to the desired position
press the action button (ActionButton) and select the "overlay" region by holding the action button, release the action button
press and hold the Drag button (DragButton) inside the "drag" region to start dragging; press any mouse button outside the "drag" region for canceling dragging of image region
pull the Drag button (DragButton) and drag the "drag" region
release the Drag button (DragButton) when "dragged" region is dragged to desired position
press the Drop button (DropButton) outside the "drag" region to drop the region; press any mouse button outside the "drag" region for canceling dropping of image region

If ActionButton, DragButton or DropButton is set to right mouse button, context menu during action can be disabled with the DisableContextMenu property.

The dragged region is not changed if CTRL key is pressed.

Example

This C#/VB.NET code shows how to programmatically drag and drop a region of image.

VB.NET


Class DragDropSelectionToolExample
    ' Programmatically drag and drop a region of image.
    Public Sub ProgrammaticallyDragAndDropImageInViewer(viewer As Vintasoft.Imaging.UI.ImageViewer)
        ' create an instance of the DragDropSelectionTool class
        Dim dragDropSelectionTool As New Vintasoft.Imaging.UI.VisualTools.DragDropSelectionTool()
        ' set the tool as the current tool of the ImageViewer
        viewer.VisualTool = dragDropSelectionTool
        ' set the region of interest on image
        dragDropSelectionTool.Rectangle = New System.Drawing.Rectangle(50, 50, 250, 150)
        ' drag and drop the selected region of image to the specified location within the image
        dragDropSelectionTool.DragAndDrop(New System.Drawing.Point(200, 250))
    End Sub
End Class


class DragDropSelectionToolExample
{
    // Programmatically drag and drop a region of image.
    public void ProgrammaticallyDragAndDropImageInViewer(Vintasoft.Imaging.UI.ImageViewer viewer)
    {
        // create an instance of the DragDropSelectionTool class
        Vintasoft.Imaging.UI.VisualTools.DragDropSelectionTool dragDropSelectionTool = 
            new Vintasoft.Imaging.UI.VisualTools.DragDropSelectionTool();
        // set the tool as the current tool of the ImageViewer
        viewer.VisualTool = dragDropSelectionTool;
        // set the region of interest on image
        dragDropSelectionTool.Rectangle = new System.Drawing.Rectangle(50, 50, 250, 150);
        // drag and drop the selected region of image to the specified location within the image
        dragDropSelectionTool.DragAndDrop(new System.Drawing.Point(200, 250));
    }
}

Inheritance Hierarchy

System.Object
   Vintasoft.Imaging.UI.VisualTools.VisualTool
      Vintasoft.Imaging.UI.VisualTools.UserInteraction.UserInteractionVisualTool
         Vintasoft.Imaging.UI.VisualTools.RectangularSelectionTool
            Vintasoft.Imaging.UI.VisualTools.DragDropSelectionTool

Requirements

Target Platforms: .NET 10; .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Reference

DragDropSelectionTool Members
Vintasoft.Imaging.UI.VisualTools Namespace

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