WpfDragDropSelectionTool Class

In This Topic

Visual tool for dragging and dropping a region of image in image viewer.

Object Model

Syntax

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

'Declaration

<DesignTimeVisibleAttribute("Visible = False")>
<ToolboxItemAttribute("ToolboxItemType = null", "ToolboxItemTypeName = ")>
<DefaultPropertyAttribute("Content")>
<ContentPropertyAttribute("Content")>
<LocalizabilityAttribute(None)>
<StyleTypedPropertyAttribute("Property = FocusVisualStyle", "StyleTargetType = System.Windows.Controls.Control")>
<XmlLangPropertyAttribute("Name = Language")>
<UsableDuringInitializationAttribute("Usable = True")>
<RuntimeNamePropertyAttribute("Name = Name")>
<UidPropertyAttribute()>
<TypeDescriptionProviderAttribute("TypeName = MS.Internal.ComponentModel.DependencyObjectProvider")>
<NameScopePropertyAttribute("Name = NameScope", "Type = System.Windows.NameScope")>
Public NotInheritable Class WpfDragDropSelectionTool
   Inherits WpfRectangularSelectionTool

[DesignTimeVisible("Visible = False")]
[ToolboxItem("ToolboxItemType = null", "ToolboxItemTypeName = ")]
[DefaultProperty("Content")]
[ContentProperty("Content")]
[Localizability(None)]
[StyleTypedProperty("Property = FocusVisualStyle", "StyleTargetType = System.Windows.Controls.Control")]
[XmlLangProperty("Name = Language")]
[UsableDuringInitialization("Usable = True")]
[RuntimeNameProperty("Name = Name")]
[UidProperty()]
[TypeDescriptionProvider("TypeName = MS.Internal.ComponentModel.DependencyObjectProvider")]
[NameScopeProperty("Name = NameScope", "Type = System.Windows.NameScope")]
public sealed class WpfDragDropSelectionTool : WpfRectangularSelectionTool

[DesignTimeVisible("Visible = False")]
[ToolboxItem("ToolboxItemType = null", "ToolboxItemTypeName = ")]
[DefaultProperty("Content")]
[ContentProperty("Content")]
[Localizability(None)]
[StyleTypedProperty("Property = FocusVisualStyle", "StyleTargetType = System.Windows.Controls.Control")]
[XmlLangProperty("Name = Language")]
[UsableDuringInitialization("Usable = True")]
[RuntimeNameProperty("Name = Name")]
[UidProperty()]
[TypeDescriptionProvider("TypeName = MS.Internal.ComponentModel.DependencyObjectProvider")]
[NameScopeProperty("Name = NameScope", "Type = System.Windows.NameScope")]
public __gc __sealed class WpfDragDropSelectionTool : public WpfRectangularSelectionTool*

[DesignTimeVisible("Visible = False")]
[ToolboxItem("ToolboxItemType = null", "ToolboxItemTypeName = ")]
[DefaultProperty("Content")]
[ContentProperty("Content")]
[Localizability(None)]
[StyleTypedProperty("Property = FocusVisualStyle", "StyleTargetType = System.Windows.Controls.Control")]
[XmlLangProperty("Name = Language")]
[UsableDuringInitialization("Usable = True")]
[RuntimeNameProperty("Name = Name")]
[UidProperty()]
[TypeDescriptionProvider("TypeName = MS.Internal.ComponentModel.DependencyObjectProvider")]
[NameScopeProperty("Name = NameScope", "Type = System.Windows.NameScope")]
public ref class WpfDragDropSelectionTool sealed : public WpfRectangularSelectionTool^

Remarks

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

place the mouse on desired position
select the "drag" region using the action button (ActionButton)
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

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



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

Inheritance Hierarchy

System.Object
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         System.Windows.Media.Visual
            System.Windows.UIElement
               System.Windows.FrameworkElement
                  System.Windows.Controls.Control
                     System.Windows.Controls.ContentControl
                        Vintasoft.Imaging.Wpf.UI.VisualTools.WpfVisualTool
                           Vintasoft.Imaging.Wpf.UI.VisualTools.UserInteraction.WpfUserInteractionVisualTool
                              Vintasoft.Imaging.Wpf.UI.VisualTools.WpfRectangularSelectionTool
                                 Vintasoft.Imaging.Wpf.UI.VisualTools.WpfDragDropSelectionTool

Requirements

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

Reference

WpfDragDropSelectionTool Members
Vintasoft.Imaging.Wpf.UI.VisualTools Namespace

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