From 159c0761cf6289c0195e8c5b7fe7ca99210b9fa1 Mon Sep 17 00:00:00 2001
From: vicwjb <vicwjb@163.com>
Date: Sun, 17 Aug 2025 11:43:48 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E4=BF=AE=E5=A4=8DzcedGetEnv=E5=87=BD?=
 =?UTF-8?q?=E6=95=B0=E5=85=A5=E5=8F=A3=E7=82=B9=E9=94=99=E8=AF=AF=E7=9A=84?=
 =?UTF-8?q?=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/CADShared/Runtime/Env.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/CADShared/Runtime/Env.cs b/src/CADShared/Runtime/Env.cs
index fd18bc8..024eb5d 100644
--- a/src/CADShared/Runtime/Env.cs
+++ b/src/CADShared/Runtime/Env.cs
@@ -469,8 +469,8 @@ public static void SetVar(string varName, object value, bool echo = true)
     // TODO: 中望没有测试,此处仅为不报错;本工程所有含有"中望"均存在问题
 #if zcad
     [System.Security.SuppressUnmanagedCodeSecurity]
-    [DllImport("zwcad.exe", CharSet = CharSet.Auto, CallingConvention = CallingConvention.Cdecl,
-        EntryPoint = "zcedGetEnv")]
+    [DllImport("zwcad.exe", CharSet = CharSet.Unicode, CallingConvention = CallingConvention.Cdecl, 
+        EntryPoint = "?zcedGetEnv@@YAHPEB_WPEA_W_K@Z")]//名称大小写不能换
     private static extern int AcedGetEnv(string? envName, StringBuilder returnValue);
 
     [System.Security.SuppressUnmanagedCodeSecurity]
-- 
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From fe4a8388af389d166a58ac4f3a0b9f2caa7d6326 Mon Sep 17 00:00:00 2001
From: vicwjb <vicwjb@163.com>
Date: Sun, 17 Aug 2025 12:08:23 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E8=AE=BE=E7=BD=AE?=
 =?UTF-8?q?=E5=B1=9E=E6=80=A7=E4=B8=BA=E5=A4=9A=E8=A1=8C=E6=96=87=E5=AD=97?=
 =?UTF-8?q?=E5=B1=9E=E6=80=A7=E7=9A=84=E6=89=A9=E5=B1=95=E5=87=BD=E6=95=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/CADShared/CADShared.projitems             |  1 +
 .../Entity/AttributeDefinitionEx.cs           | 22 +++++++++++
 tests/TestShared/TestBlock.cs                 | 38 +++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 src/CADShared/ExtensionMethod/Entity/AttributeDefinitionEx.cs

diff --git a/src/CADShared/CADShared.projitems b/src/CADShared/CADShared.projitems
index ecde82d..d221b2c 100644
--- a/src/CADShared/CADShared.projitems
+++ b/src/CADShared/CADShared.projitems
@@ -40,6 +40,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)ExtensionMethod\DwgMark.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ExtensionMethod\EditorEx.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ExtensionMethod\Entity\ArcEx.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)ExtensionMethod\Entity\AttributeDefinitionEx.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ExtensionMethod\Entity\BlockReferenceEx.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ExtensionMethod\Entity\BoundingInfo.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)ExtensionMethod\Entity\CircleEx.cs" />
diff --git a/src/CADShared/ExtensionMethod/Entity/AttributeDefinitionEx.cs b/src/CADShared/ExtensionMethod/Entity/AttributeDefinitionEx.cs
new file mode 100644
index 0000000..e60e181
--- /dev/null
+++ b/src/CADShared/ExtensionMethod/Entity/AttributeDefinitionEx.cs
@@ -0,0 +1,22 @@
+namespace IFoxCAD.Cad;
+
+/// <summary>
+/// 属性文字扩展
+/// </summary>
+public static class AttributeDefinitionEx
+{
+    /// <summary>
+    /// 设置属性为多行文字，并通过委托设置多行文字的属性
+    /// </summary>
+    /// <param name="attr">属性对象</param>
+    /// <param name="action">设置多行文字的委托</param>
+    public static void SetMTextAttribute(this AttributeDefinition attr, Action<MText> action)
+    {
+        attr.IsMTextAttributeDefinition = true;
+        var mt = attr.MTextAttributeDefinition;
+        action(mt);
+        attr.MTextAttributeDefinition = mt;
+        attr.UpdateMTextAttributeDefinition();
+    }
+        
+}
\ No newline at end of file
diff --git a/tests/TestShared/TestBlock.cs b/tests/TestShared/TestBlock.cs
index 20baa82..918dca2 100644
--- a/tests/TestShared/TestBlock.cs
+++ b/tests/TestShared/TestBlock.cs
@@ -287,6 +287,44 @@ public void Test_BlockFiledxf()
 
         
     }
+    
+    [CommandMethod("Test_CreateMTextAttributeBlock")]
+    public void Test_CreateMTextAttributeBlock()
+    {
+        
+        using var tr = new DBTrans();
+
+        tr.BlockTable.Add("MTextAttributeBlock",btr =>
+        {
+            btr.Origin = Point3d.Origin;
+            // 创建一个多行文字作为块的一部分
+            var mtext = new MText();
+            mtext.Contents = "默认多行文字内容\n第二行内容\n第三行内容";
+            mtext.Location = new Point3d(0, 0, 0);
+            mtext.Width = 200; // 多行文字宽度
+            mtext.Height = 2.5; // 文字高度
+            btr.AddEntity(mtext);
+            
+
+            // 创建属性定义
+            var attrDef = new AttributeDefinition();
+            attrDef.Position = new Point3d(0, -50, 0); // 位置在多行文字下方
+            attrDef.Prompt = "请输入属性值";
+            attrDef.Tag = "ATTR_TAG";
+            attrDef.TextString = "默认属性值";
+            attrDef.Height = 2.5;
+            attrDef.Justify = AttachmentPoint.MiddleCenter; // 居中对齐
+                
+            // 设置为多行属性
+            attrDef.SetMTextAttribute(att => att.Width = 100);
+            btr.AddEntity(attrDef);
+        });
+
+        tr.CurrentSpace.InsertBlock(Point3d.Origin, "MTextAttributeBlock");
+
+
+    }
+    
 
     [CommandMethod(nameof(Test_ClipBlock))]
     public void Test_ClipBlock()
-- 
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