最近在開發將客戶提供的資源打包成供自家C#使用的DLL檔，
但執行到某個函式會出現錯誤，錯誤如下，
"0x00007FFE66AE1CEC (UniversalUS.dll) 中 (於 Sample.exe)
擲回例外狀況: 0xC0000005: 讀取位置 0x0000000000000064 時發生存取違規。"
想問問是否我的寫法有誤..
範例檔案如下，
客戶提供的資源以3rd.h和3rd.dll表示。
Test.h檔案內容如下，
include "3rd.h"
class __declspec(dllexport) Test
{
private:
//define in 3rd.h
3rdTest* 3rdtest;
public:
Test(){
HINSTANCE hDll=LoadLibrary("3rd.dll");
typeof int(*CreateObj)(3rdTest** p3rdTest)
CreateObj createObj=(CreateObj)GetProcAddress((HMODULE)hDll,"l
pP
createObj(&3rdtest);
}
~Test()
{
3retest.Release();
}
int GetOtherObj(OtherObj** obj)
{
return 3rdtest->GetOtherObj(obj);
}
}
ExternTest.h如下
#include "Test.h"
extern "C"
{
extern __declspec(dllexport) Test* CreateTest();
extern __declspec(dllexport) void DisposeTest(Test* pTest);
extern __declspec(dllexport) int GetOtherObj(Test* test);
}
Test.cpp如下
#include "ExternTest.h"
extern "C"
__declspec(dllexport) Test* CreateTest()
{
return new Test();
}
extern "C"
__declspec(dllexport) void DisposeTest(Test* pTest)
{
pTest->~Test();
}
extern "C"
__declspec(dllexport) OtherObj* GetOtnerObj(Test* pTest)
{
OtherObj* otherObj;
pTest->GetOtherObj(&otherObj);
return otherObj;
}
在C#內使用狀況如下，
ShTest.cs
public class ShTest:IDisposable
{
#region dllimport
[DllImport("Test.dll")]
private static extern IntPtr CreateTest();
[DllImport("Test.dll")]
private static extern void DisposeTest(IntPtr pTest);
[DllImport("Test.dll")]
private static extern IntPtr GetOtherObj(IntPtr pTest);
#endregion
#region ShapeFunction
IntPtr pTest;
public ShTest()
{
pTest=CreateTest();
}
public void Dispose()
{
DisposeTest(pTest);
}
public ShOtherObj GetOtherObj()
{
IntPtr pOtherObj=GetOtherObj(pTest);
return new ShOtherObj(pOtherObj);
}
#endregion
}
執行到IntPtr pOtherObj=GetOtherObj(pTest);時會跳出存取違規的錯誤訊息，請問是否
我的寫法有錯誤呢？