界面中用线程控件操作摄像头(threadCtrl)
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admin
at 2018-05-14 • 0人收藏 • 1613人看过
以前从没用过这个线程控件, 这次因为用到了摄像头,常规的写法如果界面中有两个摄像头窗口,那么就需要开启多线程来分别操作。
嗯,我之前就是这么做的,这个时候就有个问题了,如果也使用了前面写的那个plus拖动摄像头区域的功能,那么代码是非常多的,两个都这样做的话,代码量非常恐怖。
关键是这样的话不利于管理。
那么这个线程控件刚好可以解决这个问题,
工程中新建一个窗体A,里面拖出一个plus控件,然后把之前写的halcon摄像头那个复制到这个里面。 然后在主界面中拖动出一个custom控件,打开这个cusntom代码编辑模式,手动修改里面的代码,增加loadform=“res/A.aardio”这个属性,再把这个控件的cls="thread",这样就启用了线程控件了。
用同样的办法,生成一个B的线程控件。
B的窗体代码也像A的一样,不过,这里开启摄像头就修改了另外一个就可以了。
这时候,运行主界面,就会看到两个摄像头窗口,分别都可以进行操作,不会干扰。
threadCtrl={cls="thread";text="custom";left=1;top=3;right=594;bottom=493;loadForm="\res\videoy.aardio";z=13};
额,先记录到这里,以后再更新下。
睡觉
2 个回复 | 最后更新于 2018-05-20
更新:
增加videoX中可以画线功能
import win.ui; /*DSG{{*/ var winform = win.form(text="aardio form";right=597;bottom=401;parent=...) winform.add( plus={cls="plus";left=0;top=0;right=598;bottom=402;db=1;dl=1;dr=1;dt=1;notify=1;z=1} ) /*}}*/ import com; var HOperatorSetX = com.CreateObject("{6ebd90e2-d219-11d2-ade5-0000c00f4ef9}") var AcqHandle = HOperatorSetX.OpenFramegrabber( 'DirectShow', 1, 1, 0, 0, 0, 0, 'default', 8, 'rgb', -1, 'false', 'default', '[1]', 0, -1 ); HOperatorSetX.GrabImageStart( AcqHandle , -1 ); var Image = HOperatorSetX.GrabImageAsync( AcqHandle , -1 ); //获取图像宽和高 var Width , Height = HOperatorSetX.GetImageSize( Image ); //console.log(Width , Height) //调整画面大小和图像一致 var WindowHandle = HOperatorSetX.OpenWindow( 0 , 0 , winform.plus.width , winform.plus.height , winform.plus.hwnd , "transparent","" ); var videoShow = true; //定义显示图像的左上点初始坐标 var leftUpX = (Width-winform.plus.width)/2; var leftUpY = (Height-winform.plus.height)/2; //设置图像显示区域 function 图像调整(){ var posX,posY = leftUpX,leftUpY; var moveImg = function(x=0,y=0){ //X轴调整 if(x<0){ if( posX<=0 ){ } else { posX = posX + x; if(posX<0) posX = 0; }; }else { if( posX >= (Width-winform.plus.width) ){} else { posX = posX + x; if(posX >(Width-winform.plus.width)) posX = Width-winform.plus.width; } } //Y轴调整 if(y<0){ if( posY<=0 ){ } else { posY = posY + y; if( posY<0 ) posY = 0; }; }else { if( posY>=(Height-winform.plus.height) ){} else { posY = posY + y; if( posY>(Height-winform.plus.height) ) posY = Height-winform.plus.height; } } HOperatorSetX.SetPart( WindowHandle , posY , posX , winform.plus.height+posY , winform.plus.width+posX ); } return moveImg; } moveImg = 图像调整(); var startX,startY; var drawX,drawY = 0,0; winform.plus.onMouseDown = function(wParam,lParam){ winform.plus.capture = true; if(thread.get("划线")){ win.ui.waitCursor(true,::User32.LoadCursor(null,0x7F03/*_IDC_CROSS*/)); }else { startX,startY = ..win.getMessagePos(lParam); win.ui.waitCursor(true,::User32.LoadCursor(null,0x7F86/*_IDC_SIZEALL*/)); } } winform.plus.onMouseClick = function(wParam,lParam){ winform.plus.capture = false; win.ui.waitCursor(false); } winform.plus.onMouseMove = function(wParam,lParam){ if(!thread.get("划线")){ if( wParam & 0x1/*_MK_LBUTTON*/ ){ var x,y = win.getMessagePos(lParam); drawX = startX-x; drawY = startY-y; moveImg(drawX,drawY); startX,startY = x,y; } } } //var hasLine = false; var tmId = winform.addtimer( 30, function(hwnd,msg,id,tick){ moveImg(0,0); while(win.delay(30)&&videoShow){ Image = HOperatorSetX.GrabImageAsync( AcqHandle , -1 ); HOperatorSetX.DispObj( Image , WindowHandle ); HOperatorSetX.ClearObj( Image ); if(thread.get("划线")){ HOperatorSetX.SetColor( WindowHandle , "red" ); HOperatorSetX.SetLineWidth( WindowHandle , 10 ); Row1 , Column1 , Row2 , Column2 = HOperatorSetX.DrawLine( WindowHandle ); //HOperatorSetX.DispLine( WindowHandle , Row1 , Column1 , Row2 , Column2 ); thread.set("划线", false); hasLine = true; } if(hasLine){ HOperatorSetX.DispLine( WindowHandle , Row1 , Column1 , Row2 , Column2 ); } } } ) /* winform.button.oncommand = function(id,event){ moveImg(0,0); var checkflag = 0; while(win.delay(30)&&videoShow){ Image = HOperatorSetX.GrabImageAsync( AcqHandle , -1 ); //镜像图像 if(winform.zuoyou.checked){ if(winform.shangxia.checked){ checkflag = 3; //全选 }else { checkflag = 1; //左右 } }else { if(winform.shangxia.checked){ checkflag = 2; //上下 }else { checkflag = 0; //未选 } } select(checkflag) { case 0 { HOperatorSetX.DispObj( Image , WindowHandle ); HOperatorSetX.ClearObj( Image ); } case 1 { ZImageMirror = HOperatorSetX.MirrorImage( Image , "column" ); HOperatorSetX.DispObj( ZImageMirror , WindowHandle ); HOperatorSetX.ClearObj( ZImageMirror ); HOperatorSetX.ClearObj( Image ); } case 2 { RImageMirror = HOperatorSetX.MirrorImage( Image , "row" ); HOperatorSetX.DispObj( RImageMirror , WindowHandle ); HOperatorSetX.ClearObj( RImageMirror ); HOperatorSetX.ClearObj( Image ); } case 3 { ZImageMirror = HOperatorSetX.MirrorImage( Image , "column" ); RImageMirror = HOperatorSetX.MirrorImage( ZImageMirror , "row" ); HOperatorSetX.DispObj( RImageMirror , WindowHandle ); HOperatorSetX.ClearObj( ZImageMirror ); HOperatorSetX.ClearObj( RImageMirror ); HOperatorSetX.ClearObj( Image ); } else { } } } } */ winform.wndproc = function(hwnd,message,wParam,lParam){ select( message ) { case 0x10/*_WM_CLOSE*/{ if(videoShow){ videoShow = false; win.delay(500) HOperatorSetX.CloseFramegrabber( AcqHandle ); } } else{ } } //无返回值则继续调用默认回调函数 } //winform.enableDpiScaling(); winform.show(); win.loopMessage(); return winform;
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摄像头winform子界面代码: