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发表于 2010-9-5 12:00:08
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来自： 中国辽宁
 要求得越细致,代码就会越复杂,呵呵- & d1 o* C @& u0 a# ^! E) ?
- '声明一个全局变量,用来记录是否发生修改- U5 m$ y% G$ E3 Z
- Dim B As Boolean
, C; r$ Y2 x+ O( d- w7 S - '在响应文档对象的BeginDocClose事件的代码中检查B变量记录的修改
% \& `, D0 t& q; F1 G& | - Private Sub AcadDocument_BeginDocClose(Cancel As Boolean)
/ o( r1 w4 H. f7 T+ ~/ B$ Y) C - If B Then* p- U" q& m) I( h2 @# @
- '当文档被修改时用消息框通知用户"已改变",当用户按下"取消"按钮时不关闭文档
/ H" B( R+ h; R V/ E" c3 {9 n - If MsgBox("已改变", vbOKCancel) = vbCancel Then Cancel = True
/ ]1 ?( S1 T" Z6 F - '清空记录
0 X+ H6 T% o( ^, o - B = False
9 e! O7 q: ]/ Z3 D% `/ {0 a) \ - Else
/ H6 n. h- \# n5 J: [ I4 V - MsgBox "未改变"
8 o' ~# N1 A4 X+ k1 ~' p& y - End If
0 |2 O: N' d* F4 M0 h2 z: l - End Sub
& C I: V5 p) j" {: h6 P - '在响应文档保存事件的代码中清空记录9 u2 E4 T* w3 C* `, m6 X
- Private Sub AcadDocument_EndSave(ByVal FileName As String)& @ a2 @* `# f( X
- B = False# \0 f5 w/ L$ m* D
- End Sub
2 x$ f% R @( k8 V: d* ]$ K* Z - '在响应文档对象的ObjectAdded事件(对象被添加到图形中时触发)的代码中记录文档修改
' s2 v/ R% v. N5 [5 V! E! l. E0 v - '可以在代码中检查Object参数的对象类型,以了解是哪一类对象被添加., o+ T% f7 I, ~, m
- 'ObjectModified事件代码也一样6 V) S y+ F" i7 v4 @
- Private Sub AcadDocument_ObjectAdded(ByVal Object As Object). }! X: a8 [3 _
- B = True/ l) h* x7 h6 E; Z5 y8 |- a
- End Sub0 r$ I, x( d/ Z6 [
- '在响应文档对象的ObjectErased事件(对象从图形中删除时触发)的代码中记录文档修改+ d+ W. `1 _2 p
- Private Sub AcadDocument_ObjectErased(ByVal ObjectID As Long)/ W$ p# s& t$ o" j. U b* S- K, C
- B = True3 U& G- K4 A" L* j0 p
- End Sub
$ e& w7 Z5 H. Z3 S& ^ U# {. M - '在响应文档对象的ObjectModified事件(图形中的对象被修改时触发)的代码中记录文档修改
8 s/ ?0 e/ n. P0 \+ x7 r - Private Sub AcadDocument_ObjectModified(ByVal Object As Object). W; ]; }. ~3 a* [ g0 |5 {. o
- B = True5 b: x2 i, D. L5 H* c, h
- End Sub
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发表于 2010-9-5 08:18:19
楼主
