public class CodecsLoadImageEventArgs : EventArgs
Public Class CodecsLoadImageEventArgs
Inherits System.EventArgs
@interface LTCodecsLoadImageEventArgs : NSObject
public class CodecsLoadImageEvent extends LeadEvent
public ref class CodecsLoadImageEventArgs : public System.EventArgs
To understand the various page and percentages, consider the following example.
File Ocr.tif is a multipage TIF file containing 4 pages. We want to load pages 2 through 4 (a total of 3 pages). We make the following call:
private RasterImage Test(RasterCodecs rasterCodecsObject)
{
// Subscribe to the LoadImage event
rasterCodecsObject.LoadImage += new EventHandler<CodecsLoadImageEventArgs>(rasterCodecsObject_LoadImage);
// Load pages 2 through 4 (total of 3 pages)
RasterImage image = rasterCodecsObject.Load(@"C:\Users\Public\Documents\LEADTOOLS Images\Ocr.tif", 0, CodecsLoadByteOrder.BgrOrGray, 2, 4);
// Unsubscribe to the LoadImage event
rasterCodecsObject.LoadImage -= new EventHandler<CodecsLoadImageEventArgs>(rasterCodecsObject_LoadImage);
return image;
}
private void rasterCodecsObject_LoadImage(object sender, CodecsLoadImageEventArgs e)
{
}
Inside the event handler, we will have the following values:
Member | Values |
---|---|
FirstPage | Will always be 2 since we specified 2 as the first page to load. |
Page | Will go from 2 through 4 since we are loading pages 2, 3 and 4. |
LastPage | Will always be 4 since we specified 4 as the last page to load. |
ImagePage | Will go from 1 through 3 since we are loading new pages 1, 2 and 3. |
PagePercent | Will go from 0 to 100 three times since we are loading three pages. This value will reset back to zero whenever Page and ImagePage changes. |
TotalPercent | Will go from 0 to 100 during the whole loading operation. When this value is 100, all the pages are loaded and the method returns. |
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