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ProcessDropImage Method (ImageViewer)
Summary
Processes the image dropped on this ImageViewer during a drag/drop operation.
Syntax
protected virtual void ProcessDropImage(ImageViewerItem targetItem,RasterImage image,bool isFloaterImage,LeadMatrix transform)
Protected Overridable Sub ProcessDropImage(ByVal targetItem As ImageViewerItem,ByVal image As RasterImage,ByVal isFloaterImage As Boolean,ByVal transform As LeadMatrix)
protected:virtual void ProcessDropImage(ImageViewerItem^ targetItem,RasterImage^ image,bool isFloaterImage,LeadMatrix^ transform)
Parameters
targetItem
The target item for the drop.
image
The image being dropped.
isFloaterImage
true if image is the floater image of another item, otherwise; false.
transform
The transformation matrix of image.
Remarks
This method is called by the viewer as the final step when an image is dropped into an item. The following is the default implementation (to customize it, create a new class that derives from ImageViewer and override this method):
If targetItem is null, then the viewer will create a new ImageViewerItem, set image into ImageViewerItem.Image and adds the item to the viewer.
If targetItem is not null then the following is performed:
- If the value of isFloaterImage is true and targetItem has a valid image, then image will be set into ImageViewerItem.Floater and
transform into ImageViewerItem.FloaterTransform. In other words, the image will be added as a floater to the item.
- If the value of isFloaterImage is false, the image will be set in Image is ignored. In other words, the image will replace the existing the image in the item (if any).
Requirements
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© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
Leadtools.Controls.WinForms Assembly
