弱弱的问
如何将dll里面的函数声明为静态方法？谢谢 问题点数：20、回复次数：8Top
1 楼zhanqiangz（闲云野鹤－Overriding）回复于 2006-03-02 18:23:24 得分 0
dll 里的都是编译好的如何重新声明？Top
2 楼xiangzhong（刀含梦）回复于 2006-03-02 21:45:31 得分 0
我意思是能不能用上shared关键词将其设置为静态的？在declare的时候或者是dllimport的时候Top
3 楼wuyi8808（空间/IV）回复于 2006-03-02 21:48:31 得分 0
不行.
在declare的时候或者是dllimport的时候不可能改变dll里的函数的属性.
Top
4 楼xiangzhong（刀含梦）回复于 2006-03-02 22:34:52 得分 0
那我怎么将一个自定义类型的参数传递给dll函数呢？是通过引用传递的，我现在运行老是提示：未将引用设置到对象实例的错误，代码如下，改如何解决？
Imports System.Runtime.InteropServices
Public Class Form1
Inherits System.Windows.Forms.Form
'is used by DRV_DioWriteBit function
<StructLayout(LayoutKind.Sequential)> Structure PT_DioWriteBit
Public Port As Short
Public bit As Short
Public state As Short
End Structure
Public Class class1
'声明函数
Declare Auto Function DRV_DioWriteBit Lib "adsapi32.dll" _
(ByVal DriverHandle As Long, ByVal DioWriteBit As PT_DioWriteBit) As Integer
End Class
Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Click
Try
Dim ptDioWriteBit As New PT_DioWriteBit
ptDioWriteBit.Port = 0
ptDioWriteBit.bit = 1
ptDioWriteBit.state = 1
Dim newClass1 As New class1
'newClass1.DRV_DioWriteBit(deviceHandle, ptDioWriteBit)这句执行出错
’错误提示如上面我说的，该如何改呢？
errCde = newClass1.DRV_DioWriteBit(deviceHandle, ptDioWriteBit)
Catch ex As Exception
MessageBox.Show(ex.Message, "Error!!", MessageBoxButtons.OK, MessageBoxIcon.Error)
Exit Sub
End Try
End Sub
End ClassTop
5 楼xiangzhong（刀含梦）回复于 2006-03-02 22:36:30 得分 0
Public Class class1
'声明函数
Declare Auto Function DRV_DioWriteBit Lib "adsapi32.dll" _
(ByVal DriverHandle As Long, ByVal DioWriteBit As PT_DioWriteBit) As Integer
End Class
这里面的 ByVal DioWriteBit As PT_DioWriteBit 应是：ByRef DioWriteBit As PT_DioWriteBit，，错误不变Top
6 楼zhouxiaotan（夜雨悠扬）回复于 2006-03-02 22:48:27 得分 0
给结构体的所有属性加上get和set方法试一下阿Top
7 楼xiangzhong（刀含梦）回复于 2006-03-03 08:39:02 得分 0
无济于事，，恳请遇到过类似问题的大侠帮我解答，谢谢Top
8 楼xiangzhong（刀含梦）回复于 2006-03-03 09:13:51 得分 0
ok,,自己解决了，庆祝下Top
