form01.frm

一个关于基于MO编程的参考资料希望对大家的交流和学习有帮助

VERSION 5.00
Object = "{9BD6A640-CE75-11D1-AF04-204C4F4F5020}#2.0#0"; "mo20.ocx"
Begin VB.Form Form01 
   Caption         =   "墨西哥地图"
   ClientHeight    =   4725
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   6765
   LinkTopic       =   "Form1"
   ScaleHeight     =   4725
   ScaleWidth      =   6765
   StartUpPosition =   3  '窗口缺省
   Begin MapObjects2.Map Map1 
      Height          =   4575
      Left            =   0
      TabIndex        =   0
      Top             =   0
      Width           =   6735
      _Version        =   131072
      _ExtentX        =   11880
      _ExtentY        =   8070
      _StockProps     =   225
      BackColor       =   16777215
      BorderStyle     =   1
      Contents        =   "Form01.frx":0000
   End
End
Attribute VB_Name = "Form01"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'Xuewei,2003/5/27
'显示图层的坐标系对象；

Option Explicit

Private Sub Form_Load()
  Dim Layer As MapLayer
  Dim dc As New DataConnection
   
  On Error GoTo Err1
  dc.Database = App.Path + "\..\" + "Mexico"
  Set Layer = New MapLayer
  Set Layer.GeoDataset = dc.FindGeoDataset("states")
  Layer.Symbol.Color = moLimeGreen
  Map1.Layers.Add Layer
  MsgBox "数据连接成功", vbInformation, "MO示例"
  Exit Sub
  
Err1:
  If dc.ConnectError = 0 Then
    MsgBox "没找到图层", vbInformation, "MO示例"
  Else
    MsgBox ConnectErrorMsg(dc.ConnectError), vbInformation, "MO示例"
  End If
  End
End Sub