如何直接打印，不出现打印对话框？

• 回答：

  主要用到函数说明：

  
  

  MxDrawXCustomFunction::Mx_Print

  
  

  直接打印，不出现打印对话框，详细说明如下：

  
  

  参数	说明
  double ptLBx	打印的范围左下角x
  double ptLBy	打印的范围左下角y
  double ptRTx	打印的范围右上角x
  double ptRTy	打印的范围右上角y
  LPCTSTR pszPrintName	打印机名，如果传为空，取系统默认打印机
  LPCTSTR pszPaperName	打印的图纸名,如果传为空，取系统默认打印机设置
  LONG iPrintDirection	打印的方向，2 为横向，1为纵向,默认取1
  LONG iLeftMargin	打印的页边的左边距离,如果为-1,取打印机默认的页边距
  LONG iRightMargin	打印的页边的右边距离,如果为-1,取打印机默认的页边距
  LONG iTopMargin	打印的页边的上边距离,如果为-1,取打印机默认的页边距
  LONG iBottomMargin	打印的页边的下边距离,如果为-1,取打印机默认的页边距
  LPCTSTR pszLayoutName	打印的布局,为NULL就是模型Model中的内容
  LPCTSTR pszPrintConfig	打印配制，暂没有使用
  LPCTSTR pszDocName	打印的文档名称，在用pdf虚拟打印机时，指定打印的pdf文件的缺省文件名
  LONG lIsPrintLineWdith	是否打印线宽，默认值为1,表示打印，传0表示不打印
  iFlag	pRectPageMargin参数的含义,iFlag = 0表示页边距，iFlag = 1表示打印区域矩形框位置

  
  

  js代码实现如下：

  
  

              function  myprint()
              {
                  var axMxDrawX = document.getElementById("MxDrawXCtrl");
                  var viewBound  = axMxDrawX.Call("Mx_GetViewCoord","");
  
                  var printParam =  axMxDrawX.Call("Mx_NewResbuf","");                
                  // 打印范围取当前视区显示内容                
                  printParam.AddDouble(viewBound.AtDouble(1));
                  printParam.AddDouble(viewBound.AtDouble(2));
                  printParam.AddDouble(viewBound.AtDouble(3));
                  printParam.AddDouble(viewBound.AtDouble(4));
  
                   var jpgWidth = viewBound.AtDouble(3) - viewBound.AtDouble(1);
                  var jpgHeight = viewBound.AtDouble(4) - viewBound.AtDouble(2);                
                  // 把jpg的宽度，高度，求文档坐标变成象素宽高.
                  //var jpgWidth = axMxDrawX.CallDoubleParam1("Mx_DocLongToViewCoord",jpgWidth);
                  // jpgWidth = jpgWidth.AtLong(1);
                  //var jpgHeight = axMxDrawX.CallDoubleParam1("Mx_DocLongToViewCoord",jpgHeight);
                  //jpgHeight = jpgHeight.AtLong(1);
  
                  var printWidth = 50;
                  var printHeight = 50;                
                  if(jpgWidth > 1)
                      printHeight = printWidth * jpgHeight / jpgWidth;                
                      // 打印机名，取空就取系统默认的。                
                      printParam.AddString("");                
                      // 图纸名,取空就取系统默认的                
                      printParam.AddString("");                
                      // 打印的方向，2 为横向，1为纵向,默认取1
                  printParam.AddLong(1);                
                  // 打印区域的左上角X坐标，图纸单为mm
                  printParam.AddLong(50);                
                  // 打印区域的右下角X坐标，图纸单为mm
                  printParam.AddLong(50 + printWidth );                
                  // 打印区域的左上角Y坐标，图纸单为mm
                  printParam.AddLong(50);                
                  // 打印区域的右下角Y坐标，图纸单为mm
                  printParam.AddLong(50 + printHeight);                
                  // 打印的布局,为NULL就是模型Model中的内容
                  printParam.AddString("");                
                  // 打印配制，暂没有使用
                  printParam.AddString("");                
                  // 打印的文档名称，在用pdf虚拟打印机时，指定打印的pdf文件的缺省文件名
                  printParam.AddString("");                
                  // 前面打印参数说明:iFlag = 0表示页边距，iFlag = 1表示打印区域矩形框位置                printParam.AddLong(1);                // 开始打印                var ret = axMxDrawX.CallEx("Mx_Print",printParam);                if(ret.AtString(0) == "Ok")
                      alert("打印成功");
              }