引导工具imageviewer - 在c＃.net中的ruber绑定概念 [英] Lead tools imageviewer - ruber banding concept in c#.net

问题描述

我的要求是在图像上找到所选文字。当我使用鼠标在图像上绘制矩形时，然后我的事件viewer_InteractiveRegionRectangle没有触发或不工作。

将数据也输入InteractiveRegionRectangle。



我尝试过：



ViewerUserControl.cs

公共部分类ViewerUserControl ：UserControl

{

公共事件EventHandler< rasterviewerrectangleeventargs> InteractiveRegionRectangle = null;

public ImageViewer _imageViewer;

}



WBaseRealEstate.cs：

protected ViewerUserControl imageViewerControl1;

protected virtual void WBaseRealEstate_Load（object sender，EventArgs e ）

{

ImageViewerRubberBandInteractiveMode rubberBandMode = new

ImageViewerRubberBandInteractiveMode（）;



this.imageViewerControl1._imageViewer.InteractiveModes.Add（rubb erBandMode）;

this.imageViewerControl1.InteractiveRegionRectangle + = new EventHandler< leadtools.winforms.rasterviewerrectangleeventargs>（viewer_InteractiveRegionRectangle）;



}





protected virtual void viewer_InteractiveRegionRectangle（object sender，Leadtools.WinForms.RasterViewerRectangleEventArgs e）

{

RubberbandDelegate del = new RubberbandDelegate（this.RubberBand）;

this.BeginInvoke（del，new object [] {e}）;

}

My Requirement is finding the selected text on image . While i am drawing rectangle on top of the image using the mouse ,Then my event "viewer_InteractiveRegionRectangle" is not firing or not working.
Getting data also into InteractiveRegionRectangle.

What I have tried:

ViewerUserControl.cs
public partial class ViewerUserControl : UserControl
{
public event EventHandler<rasterviewerrectangleeventargs>InteractiveRegionRectangle = null;
public ImageViewer _imageViewer;
}

WBaseRealEstate.cs:
protected ViewerUserControl imageViewerControl1;
protected virtual void WBaseRealEstate_Load(object sender, EventArgs e)
{
ImageViewerRubberBandInteractiveMode rubberBandMode = new
ImageViewerRubberBandInteractiveMode();

this.imageViewerControl1._imageViewer.InteractiveModes.Add(rubberBandMode);
this.imageViewerControl1.InteractiveRegionRectangle += new EventHandler<leadtools.winforms.rasterviewerrectangleeventargs>(viewer_InteractiveRegionRectangle);

}


protected virtual void viewer_InteractiveRegionRectangle(object sender, Leadtools.WinForms.RasterViewerRectangleEventArgs e)
{
RubberbandDelegate del = new RubberbandDelegate(this.RubberBand);
this.BeginInvoke(del, new object[] { e });
}

推荐答案

我们的ImageViewer控件的Rubberband交互模式在工具包附带的几个演示中实现，包括OcrModulesDemo项目。



您需要处理的事件是ImageViewerRubberBandInteractiveMode.RubberBandCompleted。



初始化模式的代码是：

The Rubberband interactive mode of our ImageViewer control is implemented in several demos that ship with the toolkit, including the OcrModulesDemo project.

The event you need to handle is ImageViewerRubberBandInteractiveMode.RubberBandCompleted.

The code to initialize the mode is this:

_viewer.InteractiveModes.BeginUpdate();
_rubberBandMode = new ImageViewerRubberBandInteractiveMode();
_rubberBandMode.IdleCursor = Cursors.Cross;
_rubberBandMode.WorkingCursor = Cursors.Cross;
_rubberBandMode.RubberBandCompleted += new EventHandler(_rubberBandMode_RubberBandCompleted);
_viewer.InteractiveModes.Add(_rubberBandMode);
_viewer.InteractiveModes.EndUpdate();

事件处理程序如下所示：

The event handler looks like this:

private void _rubberBandMode_RubberBandCompleted(object sender, ImageViewerRubberBandEventArgs e)
{
   _frameRect = _viewer.ConvertRect(null,
      ImageViewerCoordinateType.Control,
      ImageViewerCoordinateType.Image,
      LeadRect.FromLTRB(e.Points[0].X, e.Points[0].Y, e.Points[1].X, e.Points[1].Y));
// ...use the rectangle
}

请检查演示如何实现此事件以获取所选区域。如果您仍然遇到问题，请通过电子邮件或聊天联系我们的支持（两者都是免费的），并提供有关问题的完整详细信息，您的LEADTOOLS版本以及您目前所尝试的内容。



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