spire.pdfviewer 7.12.6 支持获取鼠标点击时相对于 pdf 页面内容的坐标-人生就是博尊龙凯时

spire.pdfviewer 7.12.6 已发布。本次更新新增支持获取鼠标点击时相对于 pdf 页面内容的坐标。详情请阅读以下内容。

新功能:

• spire.pdfdocumentviewer控件支持了获取鼠标点击时相对于pdf页面内容的坐标。

private void form1_load(object sender, eventargs e)
   {
	  this.pdfdocumentviewer1.loadfromfile("1.pdf");
	  this.pdfdocumentviewer1.mousedown  = new mouseeventhandler(pv_click);
	}
	private void pv_click(object sender, mouseeventargs e)
	{
		string outputfile = "out.pdf";
		string outputfile_txt = "out.txt";
		file.delete(outputfile_txt);           
	   if (e.button == mousebuttons.left) 
	   {
			pointf[] controlpositions = new pointf[] { e.location};
			spire.pdfviewer.forms.pageposition[] pagepositions = this.pdfdocumentviewer1.controltopage(controlpositions);                
string filename = this.pdfdocumentviewer1.filename;
			pdfdocument doc = new pdfdocument();
			doc.loadfromfile(filename,fileformat.pdf);                
pdfpagebase page = doc.pages[pagepositions[0].pageindex];
		  
			rectanglef bounds = new rectanglef(pagepositions[0].position, new sizef(100, 100));            
			pdftextextractor textextractor = new pdftextextractor(page);
			pdftextextractoptions option = new pdftextextractoptions();
			option.extractarea = bounds;
			string text = textextractor.extracttext(option);         
			pdffont font = new pdffont(pdffontfamily.helvetica, 11);
			pdftextwidget pdftextbox = new pdftextwidget();
			pdftextbox.font = font;
			pdftextbox.brush = pdfbrushes.red;
			pdftextbox.text = "stamp";                
pdftextbox.draw(page, bounds);                
doc.pages[pagepositions[0].pageindex].canvas.drawrectangle(pdfpens.red, bounds);
			doc.savetofile(outputfile);               
file.appendalltext(outputfile_txt, "position: "   pagepositions[0].position.tostring()   "\ntext:\r\n "   text);                
messagebox.show("finish");               
doc.dispose();
		}
	}

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