vb.net打開cad畫圖的問題？

你去查查書吧，書上挺詳細(xì)的，在這說不好說，你先在項(xiàng)目里引用。然后 Dim acadapp As AcadApplication Dim acaddoc As AcadDocument On Error Resume Next AcadApp = GetObject(, "AutoCAD.Application") If Err.Number Then Err.Clear() AcadApp = CreateObject("AutoCAD.Application") If Err.Number Then MsgBox("不能運(yùn)行AutoCAD,請(qǐng)檢查是否安裝了AutoCAD") Exit Sub End If End If AcadApp.Visible = True '界面可視

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VB2010版中怎么用用OLE控件連接CAD軟件，顯示CAD圖形？會(huì)的給段代碼

vb2010(vb.net）貌似已經(jīng)沒有OLE控件

下面的代碼是用PictureBox控件顯示CAD的DWG文件

Private?Structure?BITMAPFILEHEADER

Dim?bfType?As?Short

Dim?bfSize?As?Integer

Dim?bfReserved1?As?Short

Dim?bfReserved2?As?Short

Dim?bfOffBits?As?Integer

End?Structure

Public?Function?GetDwgImage(ByVal?FileName?As?String)?As?Image

If?Not?File.Exists(FileName)?Then?Exit?Function

Dim?DwgF?As?FileStream????'文件流

Dim?PosSentinel?As?Integer??'文件描述塊的位置

Dim?br?As?BinaryReader??'讀取二進(jìn)制文件

Dim?TypePreview?As?Integer?'縮略圖格式

Dim?PosBMP?As?Integer?'縮略圖位置

Dim?LenBMP?As?Integer?'縮略圖大小

Dim?biBitCount?As?Short?'縮略圖比特深度

Dim?biH?As?BITMAPFILEHEADER?'BMP文件頭，DWG文件中不包含位圖文件頭，要自行加上去

Dim?BMPInfo()?As?Byte??'包含在DWG文件中的BMP文件體

Dim?BMPF?As?New?MemoryStream??'保存位圖的內(nèi)存文件流

Dim?bmpr?As?New?BinaryWriter(BMPF)?'寫二進(jìn)制文件類

Dim?myImg?As?Image

Try

DwgF?=?New?FileStream(FileName,?FileMode.Open,?FileAccess.Read)????'文件流

br?=?New?BinaryReader(DwgF)

DwgF.Seek(13,?SeekOrigin.Begin)?'從第十三字節(jié)開始讀取

PosSentinel?=?br.ReadInt32?'第13到17字節(jié)指示縮略圖描述塊的位置

DwgF.Seek(PosSentinel?+?30,?SeekOrigin.Begin)?'將指針移到縮略圖描述塊的第31字節(jié)

TypePreview?=?br.ReadByte?'第31字節(jié)為縮略圖格式信息，2?為BMP格式，3為WMF格式

Select?Case?TypePreview

Case?1

Case?2,?3

PosBMP?=?br.ReadInt32?'DWG文件保存的位圖所在位置

LenBMP?=?br.ReadInt32?'位圖的大小

DwgF.Seek(PosBMP?+?14,?SeekOrigin.Begin)?'移動(dòng)指針到位圖塊

biBitCount?=?br.ReadInt16?'讀取比特深度

DwgF.Seek(PosBMP,?SeekOrigin.Begin)?'從位圖塊開始處讀取全部位圖內(nèi)容備用

BMPInfo?=?br.ReadBytes(LenBMP)??'不包含文件頭的位圖信息

br.Close()

DwgF.Close()

With?biH??'建立位圖文件頭

.bfType?=?H4D42

If?biBitCount??9?Then?.bfSize?=?54?+?4?*?(2?^?biBitCount)?+?LenBMP?Else?.bfSize?=?54?+?LenBMP

.bfReserved1?=?0?'保留字節(jié)

.bfReserved2?=?0?'保留字節(jié)

.bfOffBits?=?14?+?H28?+?1024?'圖像數(shù)據(jù)偏移

End?With

'以下開始寫入位圖文件頭

bmpr.Write(biH.bfType)?'文件類型

bmpr.Write(biH.bfSize)?'文件大小

bmpr.Write(biH.bfReserved1)?'0

bmpr.Write(biH.bfReserved2)?'0

bmpr.Write(biH.bfOffBits)?'圖像數(shù)據(jù)偏移

bmpr.Write(BMPInfo)?'寫入位圖

BMPF.Seek(0,?SeekOrigin.Begin)?'指針移到文件開始處

myImg?=?Image.FromStream(BMPF)?'創(chuàng)建位圖文件對(duì)象

Return?myImg

bmpr.Close()

BMPF.Close()

End?Select

Catch?ex?As?Exception

Return?Nothing

End?Try

End?Function

VB.Net讀取AutoCAD圖紙

如果可以的話請(qǐng)把分給我

以下是cad2007版的，引用autocad 2007 type library 和autocad/objectdbx common 17如果是04或者版本更低的只要引用autocad 2007 type library，代碼的話大同小異，思路是一樣的

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

On Error Resume Next

Dim acadapp As Autodesk.AutoCAD.Interop.AcadApplication

acadapp = GetObject(vbNullString, "autoCAD.application")

Dim acaddoc As Autodesk.AutoCAD.Interop.AcadDocument

acaddoc = acadapp.ActiveDocument

Dim Ms As Autodesk.AutoCAD.Interop.Common.AcadModelSpace

Ms = acaddoc.ModelSpace

Dim acadObjectI As Autodesk.AutoCAD.Interop.Common.AcadObject

Dim Linei As Autodesk.AutoCAD.Interop.Common.AcadLine

Dim Circlei As Autodesk.AutoCAD.Interop.Common.AcadCircle

Dim Polylinei As Autodesk.AutoCAD.Interop.Common.AcadPolyline

Dim pt As Autodesk.AutoCAD.Interop.Common.AcadPoint

For Each acadObjectI In Ms

Debug.Print(acadObjectI.ObjectName)

Select Case acadObjectI.ObjectName

Case "AcDbLine"

Linei = acadObjectI

Debug.Print("X =" Linei.StartPoint(0).ToString)

Debug.Print("Y =" Linei.StartPoint(1).ToString)

Case ""

Case ""

End Select

Next

End Sub

VB.NET連接AutoCAD出錯(cuò)

這個(gè)是vb.net教材里面的吧，我也是前兩天剛下的。遇到類似的問題，下面是我的解決辦法

首先要參考引用Autodesk.AutoCAD.Interop.dll還有Autodesk.AutoCAD.Interop.Common.dll

然后代碼有兩處也需要相應(yīng)修改，我用的是.NET 的 vb2008

'Dim AcadApp As AutoCAD.AcadApplication

Dim AcadApp As Autodesk.AutoCAD.Interop.AcadApplication

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Call 連接AutoCAD()

End Sub

Sub 連接AutoCAD()

On Error Resume Next

AcadApp = GetObject(, "AutoCAD.Application")

If Err.Number Then

Err.Clear()

AcadApp = CreateObject("AutoCAD.Application")

If Err.Number Then

MsgBox("不能運(yùn)行AutoCAD,請(qǐng)檢查是否安裝了AutoCAD")

Exit Sub

End If

End If

AcadApp.Visible = True '界面可視

'AcadApp.WindowState = AutoCAD.AcWindowState.acMax '界面最大化

AcadApp.WindowState = Autodesk.AutoCAD.Interop.Common.AcWindowState.acMax

AppActivate(AcadApp.Caption) '顯示AutoCAD界面

End Sub

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