界面中用线程控件操作摄像头(threadCtrl)
By
admin
at 2018-05-14 • 0人收藏 • 1570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;登录后方可回帖
摄像头winform子界面代码：
import win.ui; /*DSG{{*/ var winform = win.form(text="aardio form";right=1033;bottom=652;parent=...) winform.add( plus={cls="plus";left=0;top=0;right=1034;bottom=653;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', '', 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; 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( wParam & 0x1/*_MK_LBUTTON*/ ){ var x,y = win.getMessagePos(lParam); drawX = startX-x; drawY = startY-y; moveImg(drawX,drawY); startX,startY = x,y; } } 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 ); } } ) /* 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;