LEADTOOLS Annotations (Leadtools.Annotations assembly)

AutomationImageChanged Event

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An event that triggers whenever the properties of the image being automated is changed.

Syntax

event EventHandler AutomationImageChanged

'Declaration
 
Event AutomationImageChanged As EventHandler

'Usage
 
Dim instance As IAnnAutomationControl
Dim handler As EventHandler
 
AddHandler instance.AutomationImageChanged, handler

event EventHandler^ AutomationImageChanged

Remarks

If you are using a Leadtools.RasterImage object, then you trigger this event whenever the RasterImage.Changed event occures. Note that this event should occur when the image physical properties has changed, for example, its width/height or resolution or when a new image is set in your control (if supported) and not when the pixel data of the image has changed which only requires a re-paint. For these changes, use the IAnnAutomationControl.AutomationPaint event. If your requirement does not have an image that will be changed while being automated, then you do not have to trigger this event. When this event triggers, the automation object will query the IAnnAutomationControl.AutomationImageWidth, IAnnAutomationControl.AutomationImageHeight IAnnAutomationControl.AutomationImageDpiX and IAnnAutomationControl.AutomationImageDpiY properties to recalculate the size of the container.

Example

For an example, refer to IAnnAutomationControl.

Requirements