设置文本生成标志 (.NET) 
文本生成标志指定文本是向后显示还是倒置显示。使用该属性可以定义文本样式是控制要向后显示的文本的显示还是倒置显示,或者使用文本对象的 and 属性来单独控制文本对象。FlagBitsIsMirroredInXIsMirroredInY 如果希望向后显示文本,请设置为 2,如果要倒置显示文本,请设置为 4。使用值 6 向后和上下显示文本。如果要修改文本对象,请设置为“如果希望文本向后显示”,如果希望将其倒置显示,请设置为“TRUE”。FlagBitsIsMirroredInXTRUEIsMirroredInY 向后显示文本下面的示例创建一个单行文本对象,然后使用该属性将其设置为向后显示。IsMirroredInX VB.NETImports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.Geometry
 
<CommandMethod("BackwardsText")> _
Public Sub BackwardsText()
    '' Get the current document and database
    Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument
    Dim acCurDb As Database = acDoc.Database
    '' Start a transaction
    Using acTrans As Transaction = acCurDb.TransactionManager.StartTransaction()
        '' Open the Block table for read
        Dim acBlkTbl As BlockTable
        acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId, _
                                     OpenMode.ForRead)
        '' Open the Block table record Model space for write
        Dim acBlkTblRec As BlockTableRecord
        acBlkTblRec = acTrans.GetObject(acBlkTbl(BlockTableRecord.ModelSpace), _
                                        OpenMode.ForWrite)
        '' Create a single-line text object
        Using acText As DBText = New DBText()
            acText.Position = New Point3d(3, 3, 0)
            acText.Height = 0.5
            acText.TextString = "Hello, World."
            '' Display the text backwards
            acText.IsMirroredInX = True
            acBlkTblRec.AppendEntity(acText)
            acTrans.AddNewlyCreatedDBObject(acText, True)
        End Using
        '' Save the changes and dispose of the transaction
        acTrans.Commit()
    End Using
End Sub
C#using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
 
[CommandMethod("BackwardsText")]
public static void BackwardsText()
{
    // Get the current document and database
    Document acDoc = Application.DocumentManager.MdiActiveDocument;
    Database acCurDb = acDoc.Database;
    // Start a transaction
    using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
    {
        // Open the Block table for read
        BlockTable acBlkTbl;
        acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,
                                        OpenMode.ForRead) as BlockTable;
        // Open the Block table record Model space for write
        BlockTableRecord acBlkTblRec;
        acBlkTblRec = acTrans.GetObject(acBlkTbl[BlockTableRecord.ModelSpace],
                                        OpenMode.ForWrite) as BlockTableRecord;
        // Create a single-line text object
        using (DBText acText = new DBText())
        {
            acText.Position = new Point3d(3, 3, 0);
            acText.Height = 0.5;
            acText.TextString = "Hello, World.";
            // Display the text backwards
            acText.IsMirroredInX = true;
            acBlkTblRec.AppendEntity(acText);
            acTrans.AddNewlyCreatedDBObject(acText, true);
        }
        // Save the changes and dispose of the transaction
        acTrans.Commit();
    }
}
VBA/ActiveX 代码参考Sub BackwardsText()
    Dim textObj As AcadText
    Dim textString As String
    Dim insertionPoint(0 To 2) As Double
    Dim height As Double
 
    ' Create the text object
    textString = "Hello, World."
    insertionPoint(0) = 3
    insertionPoint(1) = 3
    insertionPoint(2) = 0
    height = 0.5
    Set textObj = ThisDrawing.ModelSpace. _
                      AddText(textString, insertionPoint, height)
 
    ' Change the value of the TextGenerationFlag
    textObj.TextGenerationFlag = acTextFlagBackward
    textObj.Update
End Sub
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