C＃.NET調用C++ DLL

Question

我有一個DLL（不包括源代碼），其中出口是這樣的：

?ReceiveCoreDataPtr@@YAXPAX@Z 
?xenoAddRigidBodyAngularImpulse@@YAXHMMM@Z 
?xenoAddRigidBodyForce@@YAXHMMM@Z 
?xenoAddRigidBodyForce@@YAXHMMMMMM@Z 
?xenoAddRigidBodyLinearImpulse@@YAXHMMM@Z 
?xenoAddRigidBodyPointImpulse@@YAXHMMMMMM@Z 
?xenoAddRigidBodyTorque@@YAXHMMM@Z 
?xenoCharacterControllerCrouch@@YAXH@Z 
?xenoCharacterControllerJump@@YAXH@Z 
?xenoCharacterDisable@@YAXH@Z 
?xenoCharacterEnable@@YAXH@Z 
?xenoDeleteRigidBody@@YAXH@Z 
?xenoEnd@@YAXXZ 
?xenoGetCameraFOV@@YAKH@Z 
?xenoGetCameraPointX@@YAKH@Z 
?xenoGetCameraPointY@@YAKH@Z 
?xenoGetCameraPointZ@@YAKH@Z 
?xenoGetCameraPositionX@@YAKH@Z 
?xenoGetCameraPositionY@@YAKH@Z 
?xenoGetCameraPositionZ@@YAKH@Z 
?xenoGetCharacterControllerHeadPosition@@YAKH@Z 
?xenoGetCharacterControllerPositionX@@YAKH@Z 
?xenoGetCharacterControllerPositionY@@YAKH@Z 
?xenoGetCharacterControllerPositionZ@@YAKH@Z 
?xenoGetCharacterControllerRotation@@YAKH@Z 
?xenoGetRigidBodyAllowedPenetrationDepth@@YAKH@Z 
?xenoGetRigidBodyAngularDamping@@YAKH@Z 
?xenoGetRigidBodyAngularVelocityX@@YAKH@Z 
?xenoGetRigidBodyAngularVelocityY@@YAKH@Z 
?xenoGetRigidBodyAngularVelocityZ@@YAKH@Z 
?xenoGetRigidBodyFriction@@YAKH@Z 
?xenoGetRigidBodyGravityFactor@@YAKH@Z 
?xenoGetRigidBodyLinearDamping@@YAKH@Z 
?xenoGetRigidBodyLinearVelocityX@@YAKH@Z 
?xenoGetRigidBodyLinearVelocityY@@YAKH@Z 
?xenoGetRigidBodyLinearVelocityZ@@YAKH@Z 
?xenoGetRigidBodyMass@@YAKH@Z 
?xenoGetRigidBodyMaxAngularVelocity@@YAKH@Z 
?xenoGetRigidBodyMaxLinearVelocity@@YAKH@Z 
?xenoGetRigidBodyPointVelocityX@@YAKHMMM@Z 
?xenoGetRigidBodyPointVelocityY@@YAKHMMM@Z 
?xenoGetRigidBodyPointVelocityZ@@YAKHMMM@Z 
?xenoGetRigidBodyRestitution@@YAKH@Z 
?xenoIsRigidBodyALadder@@YAHH@Z 
?xenoMakeCamera@@YAXHH@Z 
?xenoMakeCharacterController@@YAXHMM@Z 
?xenoMakeCharacterController@@YAXHMMM@Z 
?xenoMakeCharacterController@@YAXHMMMM@Z 
?xenoMakeCharacterController@@YAXHMMMMM@Z 
?xenoMakeCharacterController@@YAXHMMMMMM@Z 
?xenoMakeCharacterController@@YAXHMMMMMMM@Z 
?xenoMakeRigidBodyDynamicBox@@YAXH@Z 
?xenoMakeRigidBodyDynamicBox@@YAXHM@Z 
?xenoMakeRigidBodyDynamicCapsule@@YAXH@Z 
?xenoMakeRigidBodyDynamicCapsule@@YAXHM@Z 
?xenoMakeRigidBodyDynamicCylinder@@YAXH@Z 
?xenoMakeRigidBodyDynamicCylinder@@YAXHM@Z 
?xenoMakeRigidBodyDynamicSphere@@YAXH@Z 
?xenoMakeRigidBodyDynamicSphere@@YAXHM@Z 
?xenoMakeRigidBodyStaticBox@@YAXH@Z 
?xenoMakeRigidBodyStaticCapsule@@YAXH@Z 
?xenoMakeRigidBodyStaticCylinder@@YAXH@Z 
?xenoMakeRigidBodyStaticSphere@@YAXH@Z 
?xenoMakeRigidBodyStaticTriangleMesh@@YAXH@Z 
?xenoMakeVehicle@@YAXHH@Z 
?xenoMoveCharacterControllerBackward@@YAXH@Z 
?xenoMoveCharacterControllerForward@@YAXH@Z 
?xenoMoveCharacterControllerLeft@@YAXH@Z 
?xenoMoveCharacterControllerRight@@YAXH@Z 
?xenoSetCharacterControllerPosition@@YAXHMMM@Z 
?xenoSetCharacterControllerRotation@@YAXHM@Z 
?xenoSetGravity@@YAXM@Z 
?xenoSetGravity@@YAXMMM@Z 
?xenoSetRigidBodyAllowedPenetrationDepth@@YAXHM@Z 
?xenoSetRigidBodyAngularDamping@@YAXHM@Z 
?xenoSetRigidBodyAngularVelocity@@YAXHMMM@Z 
?xenoSetRigidBodyAsLadder@@YAXHH@Z 
?xenoSetRigidBodyFriction@@YAXHM@Z 
?xenoSetRigidBodyGravityFactor@@YAXHM@Z 
?xenoSetRigidBodyLinearDamping@@YAXHM@Z 
?xenoSetRigidBodyLinearVelocity@@YAXHMMM@Z 
?xenoSetRigidBodyMass@@YAXHM@Z 
?xenoSetRigidBodyMaxAngularVelocity@@YAXHM@Z 
?xenoSetRigidBodyMaxLinearVelocity@@YAXHM@Z 
?xenoSetRigidBodyPosition@@YAXHMMM@Z 
?xenoSetRigidBodyRestitution@@YAXHM@Z 
?xenoSetRigidBodyRotation@@YAXHMMM@Z 
?xenoSetTimeStep@@YAXM@Z 
?xenoStart@@YAXH@Z 
?xenoStart@@YAXHM@Z 
?xenoStart@@YAXHMH@Z 
?xenoStart@@YAXXZ 
?xenoUpdate@@YAXXZ 
?xenoVehicleAccelerate@@YAXHM@Z 
?xenoVehicleHandbrake@@YAXH@Z 
?xenoVehicleReverse@@YAXH@Z 
?xenoVehicleTurn@@YAXHM@Z 

當我嘗試使用它在另一個C++應用程序像這樣

#include <windows.h> 

class XenoPhysics 
{ 
private: 
typedef void (*FunctionFunc)(void); 
typedef void (*FunctionFuncFloat)(float); 
typedef void (*FunctionFuncInt)(int); 
typedef void (*FunctionIntFloatFloatFloat)(int,float,float,float); 

HMODULE libInstance; 

public: 
void LoadLib() 
{ 
    this->libInstance = LoadLibrary(L"F:\\xenophysics.dll"); 
} 

void UnloadLib() 
{ 
    FreeLibrary(libInstance); 
} 

void xStart() 
{ 
    FunctionFunc curFunc; 
    curFunc = (FunctionFunc)GetProcAddress(this->libInstance, "?xenoStart@@YAXXZ"); 
    curFunc(); 
} 

void xEnd() 
{ 
    FunctionFunc curFunc; 
    curFunc = (FunctionFunc)GetProcAddress(libInstance, "xenoEnd"); 
    curFunc(); 
} 

void xUpdate() 
{ 
    FunctionFunc curFunc; 
    curFunc = (FunctionFunc)GetProcAddress(libInstance, "xenoUpdate"); 
    curFunc(); 
} 

void xMakeRigidBodyStaticBox(int objid) 
{ 
    FunctionFuncInt curFunc; 
    curFunc = (FunctionFuncInt)GetProcAddress(libInstance, "xenoMakeRigidBodyStaticBox"); 
    curFunc(objid); 
} 

void xMakeRigidBodyDynamicBox(int objid) 
{ 
    FunctionFuncInt curFunc; 
    curFunc = (FunctionFuncInt)GetProcAddress(libInstance, "xenoMakeRigidBodyDynamicBox"); 
    curFunc(objid); 
} 

void xSetRigidBodyPosition(int objid, float x, float y, float z) 
{ 
    FunctionIntFloatFloatFloat curFunc; 
    curFunc = (FunctionIntFloatFloatFloat)GetProcAddress(libInstance, "xenoSetRigidBodyPosition"); 
    curFunc(objid, x, y, z); 
} 

void xSetGravity(float grav) 
{ 
    FunctionFuncFloat curFunc; 
    curFunc = (FunctionFuncFloat)GetProcAddress(libInstance, "xenoSetGravity"); 
    curFunc(grav); 
} 
}; 

這是「包裝」（或任何你稱呼它）類。要我叫我做

XenoPhysics * d = new XenoPhysics(); 
d->LoadLib(); 
d->xStart(); 

然後引發以下錯誤的功能（注它通過LoadLib（）沒有任何錯誤）

Unhandled exception at 0x50261bc9 in Xeno Test.exe: 0xC0000005: Access violation reading location 0x00000064. 

是的;我檢查過「curFunc」得到的地址，不只是一個NULL指針（至少我認爲我已經檢查過）..

任何人都可以幫忙嗎？

編輯：忘記了C＃.NET代碼，是我的錯：3

這裏是C++ CLR DLL 「包裝」 我試圖讓：

#include <windows.h> 
// The following ifdef block is the standard way of creating macros which make exporting 
// from a DLL simpler. All files within this DLL are compiled with the XENOWRAPPERWIN32_EXPORTS 
// symbol defined on the command line. this symbol should not be defined on any project 
// that uses this DLL. This way any other project whose source files include this file see 
// XENOWRAPPERWIN32_API functions as being imported from a DLL, whereas this DLL sees symbols 
// defined with this macro as being exported. 
#ifdef XENOWRAPPERWIN32_EXPORTS 
#define XENOWRAPPERWIN32_API __declspec(dllexport) 
#else 
#define XENOWRAPPERWIN32_API __declspec(dllimport) 
#endif 

typedef void (*FunctionFunc)(); 
typedef void (*FunctionFuncFloat)(float); 
typedef void (*FunctionFuncInt)(int); 
typedef void (*FunctionIntFloatFloatFloat)(int,float,float,float); 

// This class is exported from the xeno wrapper win32.dll 
class XENOWRAPPERWIN32_API Cxenowrapperwin32 { 
public: 
    Cxenowrapperwin32(void); 

    HINSTANCE libInstance; 
    // FunctionFunc curFunc; 

    // Library base functions 
    void LoadLib() 
    { 
     libInstance = LoadLibrary(L"F:\\xenophysics.dll"); 
    } 

    void UnloadLib() 
    { 
     FreeLibrary(libInstance); 
    } 

    // Function calls to the xeno physics 
    void xStart() 
    { 
     FunctionFunc curFunc; 
     curFunc = (FunctionFunc)GetProcAddress(libInstance, "?xenoStart@@YAXXZ"); 
     curFunc(); 
    } 

    void xEnd() 
    { 
     FunctionFunc curFunc; 
     curFunc = (FunctionFunc)GetProcAddress(libInstance, "?xenoEnd@@YAXXZ"); 
     curFunc(); 
    } 

    void xUpdate() 
    { 
     FunctionFunc curFunc; 
     curFunc = (FunctionFunc)GetProcAddress(libInstance, "?xenoUpdate@@YAXXZ"); 
     curFunc(); 
    } 

    void xMakeRigidBodyStaticBox(int objid) 
    { 
     FunctionFuncInt curFunc; 
     curFunc = (FunctionFuncInt)GetProcAddress(libInstance, "?xenoMakeRigidBodyStaticBox@@YAXH@Z"); 
     curFunc(objid); 
    } 

    void xMakeRigidBodyDynamicBox(int objid) 
    { 
     FunctionFuncInt curFunc; 
     curFunc = (FunctionFuncInt)GetProcAddress(libInstance, "?xenoMakeRigidBodyDynamicBox@@YAXH@Z"); 
     curFunc(objid); 
    } 

    void xSetRigidBodyPosition(int objid, float x, float y, float z) 
    { 
     FunctionIntFloatFloatFloat curFunc; 
     curFunc = (FunctionIntFloatFloatFloat)GetProcAddress(libInstance, "?xenoSetRigidBodyPosition@@YAXHMMM@Z"); 
     curFunc(objid, x, y, z); 
    } 

    void xSetGravity(float grav) 
    { 
     FunctionFuncFloat curFunc; 
     curFunc = (FunctionFuncFloat)GetProcAddress(libInstance, "?xenoSetGravity@@YAXM@Z"); 
     curFunc(grav); 
    } 

}; 

extern XENOWRAPPERWIN32_API int nxenowrapperwin32; 

XENOWRAPPERWIN32_API int fnxenowrapperwin32(void); 

，這裏是我如何使用在C＃.NET

class xeno 
     { 
      [DllImport("C:\\Users\\hayer\\Documents\\Visual Studio 2008\\Projects\\xeno wrapper win32\\Debug\\xeno wrapper win32.dll", EntryPoint = "?LoadLib@Cxenowrapperwin32@@QAEXXZ")] 
      public static extern void xLoadLib(); 
      public void LoadLib() 
      { 
       xLoadLib(); 
      } 

      [DllImport("C:\\Users\\hayer\\Documents\\Visual Studio 2008\\Projects\\xeno wrapper win32\\Debug\\xeno wrapper win32.dll", EntryPoint = "?UnloadLib@Cxenowrapperwin32@@QAEXXZ")] 
      public static extern void xUnloadLib(); 
      public void UnloadLib() 
      { 
       xUnloadLib(); 
      } 

      [DllImport("C:\\Users\\hayer\\Documents\\Visual Studio 2008\\Projects\\xeno wrapper win32\\Debug\\xeno wrapper win32.dll", EntryPoint = "?xStart@Cxenowrapperwin32@@QAEXXZ")] 
      public static extern void xStart(); 
      public void Start() 
      { 
       xStart(); 
      } 

      [DllImport("C:\\Users\\hayer\\Documents\\Visual Studio 2008\\Projects\\xeno wrapper win32\\Debug\\xeno wrapper win32.dll", EntryPoint = "?xUpdate@Cxenowrapperwin32@@QAEXXZ")] 
      public static extern void xUpdate(); 
      public void Update() 
      { 
       xUpdate(); 
      } 

      [DllImport("C:\\Users\\hayer\\Documents\\Visual Studio 2008\\Projects\\xeno wrapper win32\\Debug\\xeno wrapper win32.dll", EntryPoint = "?xEnd@Cxenowrapperwin32@@QAEXXZ")] 
      public static extern void xEnd(); 
      public void End() 
      { 
       xEnd(); 
      } 

      [DllImport("C:\\Users\\hayer\\Documents\\Visual Studio 2008\\Projects\\xeno wrapper win32\\Debug\\xeno wrapper win32.dll", EntryPoint = "?xMakeRigidBodyDynamicBox@Cxenowrapperwin32@@QAEXH@Z")] 
      public static extern void xMakeRigidBodyDynamicBox(int objid); 
      public void MakeRigidBodyDynamicBox(int id) 
      { 
       xMakeRigidBodyDynamicBox(id); 
      } 

      [DllImport("C:\\Users\\hayer\\Documents\\Visual Studio 2008\\Projects\\xeno wrapper win32\\Debug\\xeno wrapper win32.dll", EntryPoint = "?xMakeRigidBodyStaticBox@Cxenowrapperwin32@@QAEXH@Z")] 
      public static extern void xMakeRigidBodyStaticBox(int objid); 
      public void MakeRigidBodyStaticBox(int id) 
      { 
       xMakeRigidBodyStaticBox(id); 
      } 

      [DllImport("C:\\Users\\hayer\\Documents\\Visual Studio 2008\\Projects\\xeno wrapper win32\\Debug\\xeno wrapper win32.dll", EntryPoint = "?xSetGravity@Cxenowrapperwin32@@QAEXM@Z")] 
      public static extern void xSetGravity(float grav); 
      public void SetGravity(float g) 
      { 
       xSetGravity(g); 
      } 

      [DllImport("C:\\Users\\hayer\\Documents\\Visual Studio 2008\\Projects\\xeno wrapper win32\\Debug\\xeno wrapper win32.dll", EntryPoint = "?xSetRigidBodyPosition@Cxenowrapperwin32@@QAEXHMMM@Z")] 
      public static extern void xSetRigidBodyPosition(int obj, float x, float y, float z); 
      public void SetRigidBodyPosition(int id, float q, float w, float e) 
      { 
       xSetRigidBodyPosition(id, q, w, e); 
      } 
     } 

，並在主C＃.NET程序我

xeno tx = new xeno(); 

tx.Start(); 
tx.SetGravity(-1); 

tx.MakeRigidBodyStaticBox(ground.Id); 

tx.MakeRigidBodyDynamicBox(cube.Id); 
tx.SetRigidBodyPosition(cube.Id, 0, 50, 0); 

Answer 1

您必須使用正確的調用轉換和參數。