头文件链接器错误
Header file linker error
我不明白为什么会出现以下错误
fatal error LNK1169: one or more multiply defined symbols found
IDirect3DDevice10Hook.h:
#include "../graphics/includes.h"
#include "../hook/FW1FontWrapper.h"
#include "../hook/BeaEngine.h"
typedef HRESULT(__stdcall *D3D11PresentHook) (IDXGISwapChain* pSwapChain, UINT SyncInterval, UINT Flags);
typedef void(__stdcall *D3D11DrawIndexedHook) (ID3D11DeviceContext* pContext, UINT IndexCount, UINT StartIndexLocation, INT BaseVertexLocation);
typedef void(__stdcall *D3D11ClearRenderTargetViewHook) (ID3D11DeviceContext* pContext, ID3D11RenderTargetView *pRenderTargetView, const FLOAT ColorRGBA[4]);
struct HookContext {
BYTE original_code[64];
SIZE_T dst_ptr;
BYTE far_jmp[6];
};
HookContext *presenthook64;
ID3D11Device *pDevice = NULL;
ID3D11DeviceContext *pContext = NULL;
DWORD_PTR* pSwapChainVtable = NULL;
DWORD_PTR* pDeviceContextVTable = NULL;
D3D11PresentHook phookD3D11Present = NULL;
D3D11DrawIndexedHook phookD3D11DrawIndexed = NULL;
D3D11ClearRenderTargetViewHook phookD3D11ClearRenderTargetView = NULL;
IFW1Factory *pFW1Factory = NULL;
IFW1FontWrapper *pFontWrapper = NULL;
bool firstTime = true;
void* detourBuffer[3];
HRESULT hookD3D11Present(IDXGISwapChain* pSwapChain, UINT SyncInterval, UINT Flags);
void hookD3D11DrawIndexed(ID3D11DeviceContext *pContext, UINT IndexCount, UINT StartIndexLocation, INT BaseVertexLocation);
void hookD3D11ClearRenderTargetView(ID3D11DeviceContext *pContext, ID3D11RenderTargetView *pRenderTargetView, const FLOAT ColorRGBA[4]);
const void* DetourFuncVTable(SIZE_T *src, const BYTE *dest, const DWORD index);
const unsigned int DisasmLengthCheck(const SIZE_T address, const unsigned int jumplength);
const void* DetourFunc64(BYTE* const src, const BYTE* dest, const unsigned int jumplength);
DWORD InitializeHook(LPVOID);
这是我的头文件，我有 IDirect3DDevice10Hook.cpp 并且我没有收到代码错误，我在头文件中创建了该函数，因为我想在我的解决方案的另一个文件中使用它们。
但是当我使用 dllmain.cpp 中的代码时，一切都很好，它的工作也没有出错，这是我的 dllmain.cpp:
#include "../clientscript/core/graphics/includes.h"
#include "core\hook\FW1FontWrapper.h"
#include "core\hook\BeaEngine.h"
typedef HRESULT(__stdcall *D3D11PresentHook) (IDXGISwapChain* pSwapChain, UINT SyncInterval, UINT Flags);
typedef void(__stdcall *D3D11DrawIndexedHook) (ID3D11DeviceContext* pContext, UINT IndexCount, UINT StartIndexLocation, INT BaseVertexLocation);
typedef void(__stdcall *D3D11ClearRenderTargetViewHook) (ID3D11DeviceContext* pContext, ID3D11RenderTargetView *pRenderTargetView, const FLOAT ColorRGBA[4]);
struct HookContext {
BYTE original_code[64];
SIZE_T dst_ptr;
BYTE far_jmp[6];
};
HookContext *presenthook64;
ID3D11Device *pDevice = NULL;
ID3D11DeviceContext *pContext = NULL;
DWORD_PTR* pSwapChainVtable = NULL;
DWORD_PTR* pDeviceContextVTable = NULL;
D3D11PresentHook phookD3D11Present = NULL;
D3D11DrawIndexedHook phookD3D11DrawIndexed = NULL;
D3D11ClearRenderTargetViewHook phookD3D11ClearRenderTargetView = NULL;
IFW1Factory *pFW1Factory = NULL;
IFW1FontWrapper *pFontWrapper = NULL;
bool firstTime = true;
void* detourBuffer[3];
// hookD3D11Present*
HRESULT __stdcall hookD3D11Present(IDXGISwapChain* pSwapChain, UINT SyncInterval, UINT Flags)
{
if (firstTime)
{
pSwapChain->GetDevice(__uuidof(pDevice), (void**)&pDevice);
pDevice->GetImmediateContext(&pContext);
FW1CreateFactory(FW1_VERSION, &pFW1Factory);
pFW1Factory->CreateFontWrapper(pDevice, L"Impact", &pFontWrapper);
pFW1Factory->Release();
firstTime = false;
}
pFontWrapper->DrawString(pContext, L"Test Test", 10.0f, 16.0f, 16.0f, 0xffff1612, FW1_RESTORESTATE);
return phookD3D11Present(pSwapChain, SyncInterval, Flags);
}
// hookD3D11DrawIndexed*
void __stdcall hookD3D11DrawIndexed(ID3D11DeviceContext* pContext, UINT IndexCount, UINT StartIndexLocation, INT BaseVertexLocation)
{
return phookD3D11DrawIndexed(pContext, IndexCount, StartIndexLocation, BaseVertexLocation);
}
// hookD3D11ClearRenderTargetView*
void __stdcall hookD3D11ClearRenderTargetView(ID3D11DeviceContext* pContext, ID3D11RenderTargetView *pRenderTargetView, const FLOAT ColorRGBA[4])
{
return phookD3D11ClearRenderTargetView(pContext, pRenderTargetView, ColorRGBA);
}
// DetourFuncVTable*
const void* DetourFuncVTable(SIZE_T* src, const BYTE* dest, const DWORD index)
{
DWORD dwVirtualProtectBackup;
SIZE_T* const indexPtr = &src[index];
const void* origFunc = (void*)*indexPtr;
VirtualProtect(indexPtr, sizeof(SIZE_T), PAGE_EXECUTE_READWRITE, &dwVirtualProtectBackup);
*indexPtr = (SIZE_T)dest;
VirtualProtect(indexPtr, sizeof(SIZE_T), dwVirtualProtectBackup, &dwVirtualProtectBackup);
return origFunc;
}
// DisasmLengthCheck*
const unsigned int DisasmLengthCheck(const SIZE_T address, const unsigned int jumplength)
{
DISASM disasm;
memset(&disasm, 0, sizeof(DISASM));
disasm.EIP = (UIntPtr)address;
disasm.Archi = 0x40;
unsigned int processed = 0;
while (processed < jumplength)
{
const int len = Disasm(&disasm);
if (len == UNKNOWN_OPCODE) ++disasm.EIP;
else
{
processed += len;
disasm.EIP += len;
}
}
return processed;
}
// DetourFunc64*
const void* DetourFunc64(BYTE* const src, const BYTE* dest, const unsigned int jumplength)
{
// Allocate a memory page that is going to contain executable code.
MEMORY_BASIC_INFORMATION mbi;
for (SIZE_T addr = (SIZE_T)src; addr > (SIZE_T)src - 0x80000000; addr = (SIZE_T)mbi.BaseAddress - 1)
{
if (!VirtualQuery((LPCVOID)addr, &mbi, sizeof(mbi))) break;
if (mbi.State == MEM_FREE) if (presenthook64 = (HookContext*)VirtualAlloc(mbi.BaseAddress, 0x1000, MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE)) break;
}
// If allocating a memory page failed, the function failed.
if (!presenthook64)
{
return NULL;
}
// Select a pointer slot for the memory page to be freed on unload.
for (int i = 0; i < sizeof(detourBuffer) / sizeof(void*); ++i)
{
if (!detourBuffer[i])
{
detourBuffer[i] = presenthook64;
break;
}
}
// Save original code and apply detour. The detour code is:
BYTE detour[] = { 0x50, 0x48, 0xB8, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0x48, 0x87, 0x04, 0x24, 0xC3 };
const unsigned int length = DisasmLengthCheck((SIZE_T)src, jumplength);
memcpy(presenthook64->original_code, src, length);
memcpy(&presenthook64->original_code[length], detour, sizeof(detour));
*(SIZE_T*)&presenthook64->original_code[length + 3] = (SIZE_T)src + length;
// Build a far jump to the destination function.
*(WORD*)&presenthook64->far_jmp = 0x25FF;
*(DWORD*)(presenthook64->far_jmp + 2) = (DWORD)((SIZE_T)presenthook64 - (SIZE_T)src + FIELD_OFFSET(HookContext, dst_ptr) - 6);
presenthook64->dst_ptr = (SIZE_T)dest;
// Write the hook to the original function.
DWORD flOld = 0;
VirtualProtect(src, 6, PAGE_EXECUTE_READWRITE, &flOld);
memcpy(src, presenthook64->far_jmp, sizeof(presenthook64->far_jmp));
VirtualProtect(src, 6, flOld, &flOld);
// Return a pointer to the original code.
return presenthook64->original_code;
}
// InitializeHook*
DWORD __stdcall InitializeHook(LPVOID)
{
HWND hWnd = GetForegroundWindow();
IDXGISwapChain* pSwapChain;
D3D_FEATURE_LEVEL featureLevel = D3D_FEATURE_LEVEL_11_0;
DXGI_SWAP_CHAIN_DESC swapChainDesc;
ZeroMemory(&swapChainDesc, sizeof(swapChainDesc));
swapChainDesc.BufferCount = 1;
swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.OutputWindow = hWnd;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.Windowed = TRUE;//((GetWindowLong(hWnd, GWL_STYLE) & WS_POPUP) != 0) ? FALSE : TRUE;
swapChainDesc.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
swapChainDesc.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, NULL, &featureLevel, 1, D3D11_SDK_VERSION, &swapChainDesc, &pSwapChain, &pDevice, NULL, &pContext);
pSwapChainVtable = (DWORD_PTR*)pSwapChain;
pSwapChainVtable = (DWORD_PTR*)pSwapChainVtable[0];
pDeviceContextVTable = (DWORD_PTR*)pContext;
pDeviceContextVTable = (DWORD_PTR*)pDeviceContextVTable[0];
phookD3D11Present = (D3D11PresentHook)DetourFunc64((BYTE*)pSwapChainVtable[8], (BYTE*)hookD3D11Present, 16);
phookD3D11DrawIndexed = (D3D11DrawIndexedHook)DetourFunc64((BYTE*)pDeviceContextVTable[12], (BYTE*)hookD3D11DrawIndexed, 16);
phookD3D11ClearRenderTargetView = (D3D11ClearRenderTargetViewHook)DetourFunc64((BYTE*)pDeviceContextVTable[50], (BYTE*)hookD3D11ClearRenderTargetView, 16);
pDevice->Release();
pContext->Release();
pSwapChain->Release();
return NULL;
}
BOOL __stdcall DllMain(HINSTANCE hModule, DWORD dwReason, LPVOID lpReserved)
{
switch (dwReason)
{
case DLL_PROCESS_ATTACH:
{
memset(detourBuffer, 0, sizeof(detourBuffer) * sizeof(void*));
CreateThread(NULL, 0, InitializeHook, NULL, 0, NULL);
}
case DLL_PROCESS_DETACH:
{
if (pFontWrapper) pFontWrapper->Release();
for (int i = 0; i < sizeof(detourBuffer) / sizeof(void*); ++i) if (detourBuffer[i]) VirtualFree(detourBuffer[i], 0, MEM_RELEASE);
}
}
return TRUE;
}
我该如何解决？
我的目标是创建头文件并使用 dllmain.cpp 中的函数，但我遇到了这个错误，感谢帮助者:)
也许你可以添加一些头部保护：
#ifndef _IDIRECT3DDEVICE10HOOK_H_
#define _IDIRECT3DDEVICE10HOOK_H_
#include "../graphics/includes.h"
#include "../hook/FW1FontWrapper.h"
#include "../hook/BeaEngine.h"
...
#endif
此外，我认为您在 .h 和 .cpp 文件中声明了相同的变量很奇怪：
HookContext *presenthook64;
ID3D11Device *pDevice = NULL;
ID3D11DeviceContext *pContext = NULL;
DWORD_PTR* pSwapChainVtable = NULL;
DWORD_PTR* pDeviceContextVTable = NULL;
D3D11PresentHook phookD3D11Present = NULL;
D3D11DrawIndexedHook phookD3D11DrawIndexed = NULL;
D3D11ClearRenderTargetViewHook phookD3D11ClearRenderTargetView = NULL;
IFW1Factory *pFW1Factory = NULL;
IFW1FontWrapper *pFontWrapper = NULL;
bool firstTime = true;
void* detourBuffer[3];
您在 header 文件中 定义了 变量。如果 header 包含在多个翻译单元中，当然会出现链接器错误。就像链接器告诉您的那样，您最终会得到同一变量的多个定义。
不要在 header 文件中定义变量。
如果您确实需要全局变量，那么 header 文件必须仅包含 non-defining 变量声明，例如
extern ID3D11Device *pDevice;
注意：添加了extern关键字，删除了初始值设定项。两者兼顾很重要。
定义（带有初始化器，如果有的话）进入实现文件
ID3D11Device *pDevice = NULL;
从您目前发布的内容来看，您已经将定义正确地放入了实现文件中。剩下要做的就是通过添加 extern 关键字并删除初始值设定项，将 header 中的定义转换为 non-defining 声明。
我不明白为什么会出现以下错误
fatal error LNK1169: one or more multiply defined symbols found
IDirect3DDevice10Hook.h:
#include "../graphics/includes.h"
#include "../hook/FW1FontWrapper.h"
#include "../hook/BeaEngine.h"
typedef HRESULT(__stdcall *D3D11PresentHook) (IDXGISwapChain* pSwapChain, UINT SyncInterval, UINT Flags);
typedef void(__stdcall *D3D11DrawIndexedHook) (ID3D11DeviceContext* pContext, UINT IndexCount, UINT StartIndexLocation, INT BaseVertexLocation);
typedef void(__stdcall *D3D11ClearRenderTargetViewHook) (ID3D11DeviceContext* pContext, ID3D11RenderTargetView *pRenderTargetView, const FLOAT ColorRGBA[4]);
struct HookContext {
BYTE original_code[64];
SIZE_T dst_ptr;
BYTE far_jmp[6];
};
HookContext *presenthook64;
ID3D11Device *pDevice = NULL;
ID3D11DeviceContext *pContext = NULL;
DWORD_PTR* pSwapChainVtable = NULL;
DWORD_PTR* pDeviceContextVTable = NULL;
D3D11PresentHook phookD3D11Present = NULL;
D3D11DrawIndexedHook phookD3D11DrawIndexed = NULL;
D3D11ClearRenderTargetViewHook phookD3D11ClearRenderTargetView = NULL;
IFW1Factory *pFW1Factory = NULL;
IFW1FontWrapper *pFontWrapper = NULL;
bool firstTime = true;
void* detourBuffer[3];
HRESULT hookD3D11Present(IDXGISwapChain* pSwapChain, UINT SyncInterval, UINT Flags);
void hookD3D11DrawIndexed(ID3D11DeviceContext *pContext, UINT IndexCount, UINT StartIndexLocation, INT BaseVertexLocation);
void hookD3D11ClearRenderTargetView(ID3D11DeviceContext *pContext, ID3D11RenderTargetView *pRenderTargetView, const FLOAT ColorRGBA[4]);
const void* DetourFuncVTable(SIZE_T *src, const BYTE *dest, const DWORD index);
const unsigned int DisasmLengthCheck(const SIZE_T address, const unsigned int jumplength);
const void* DetourFunc64(BYTE* const src, const BYTE* dest, const unsigned int jumplength);
DWORD InitializeHook(LPVOID);
这是我的头文件，我有 IDirect3DDevice10Hook.cpp 并且我没有收到代码错误，我在头文件中创建了该函数，因为我想在我的解决方案的另一个文件中使用它们。
但是当我使用 dllmain.cpp 中的代码时，一切都很好，它的工作也没有出错，这是我的 dllmain.cpp:
#include "../clientscript/core/graphics/includes.h"
#include "core\hook\FW1FontWrapper.h"
#include "core\hook\BeaEngine.h"
typedef HRESULT(__stdcall *D3D11PresentHook) (IDXGISwapChain* pSwapChain, UINT SyncInterval, UINT Flags);
typedef void(__stdcall *D3D11DrawIndexedHook) (ID3D11DeviceContext* pContext, UINT IndexCount, UINT StartIndexLocation, INT BaseVertexLocation);
typedef void(__stdcall *D3D11ClearRenderTargetViewHook) (ID3D11DeviceContext* pContext, ID3D11RenderTargetView *pRenderTargetView, const FLOAT ColorRGBA[4]);
struct HookContext {
BYTE original_code[64];
SIZE_T dst_ptr;
BYTE far_jmp[6];
};
HookContext *presenthook64;
ID3D11Device *pDevice = NULL;
ID3D11DeviceContext *pContext = NULL;
DWORD_PTR* pSwapChainVtable = NULL;
DWORD_PTR* pDeviceContextVTable = NULL;
D3D11PresentHook phookD3D11Present = NULL;
D3D11DrawIndexedHook phookD3D11DrawIndexed = NULL;
D3D11ClearRenderTargetViewHook phookD3D11ClearRenderTargetView = NULL;
IFW1Factory *pFW1Factory = NULL;
IFW1FontWrapper *pFontWrapper = NULL;
bool firstTime = true;
void* detourBuffer[3];
// hookD3D11Present*
HRESULT __stdcall hookD3D11Present(IDXGISwapChain* pSwapChain, UINT SyncInterval, UINT Flags)
{
if (firstTime)
{
pSwapChain->GetDevice(__uuidof(pDevice), (void**)&pDevice);
pDevice->GetImmediateContext(&pContext);
FW1CreateFactory(FW1_VERSION, &pFW1Factory);
pFW1Factory->CreateFontWrapper(pDevice, L"Impact", &pFontWrapper);
pFW1Factory->Release();
firstTime = false;
}
pFontWrapper->DrawString(pContext, L"Test Test", 10.0f, 16.0f, 16.0f, 0xffff1612, FW1_RESTORESTATE);
return phookD3D11Present(pSwapChain, SyncInterval, Flags);
}
// hookD3D11DrawIndexed*
void __stdcall hookD3D11DrawIndexed(ID3D11DeviceContext* pContext, UINT IndexCount, UINT StartIndexLocation, INT BaseVertexLocation)
{
return phookD3D11DrawIndexed(pContext, IndexCount, StartIndexLocation, BaseVertexLocation);
}
// hookD3D11ClearRenderTargetView*
void __stdcall hookD3D11ClearRenderTargetView(ID3D11DeviceContext* pContext, ID3D11RenderTargetView *pRenderTargetView, const FLOAT ColorRGBA[4])
{
return phookD3D11ClearRenderTargetView(pContext, pRenderTargetView, ColorRGBA);
}
// DetourFuncVTable*
const void* DetourFuncVTable(SIZE_T* src, const BYTE* dest, const DWORD index)
{
DWORD dwVirtualProtectBackup;
SIZE_T* const indexPtr = &src[index];
const void* origFunc = (void*)*indexPtr;
VirtualProtect(indexPtr, sizeof(SIZE_T), PAGE_EXECUTE_READWRITE, &dwVirtualProtectBackup);
*indexPtr = (SIZE_T)dest;
VirtualProtect(indexPtr, sizeof(SIZE_T), dwVirtualProtectBackup, &dwVirtualProtectBackup);
return origFunc;
}
// DisasmLengthCheck*
const unsigned int DisasmLengthCheck(const SIZE_T address, const unsigned int jumplength)
{
DISASM disasm;
memset(&disasm, 0, sizeof(DISASM));
disasm.EIP = (UIntPtr)address;
disasm.Archi = 0x40;
unsigned int processed = 0;
while (processed < jumplength)
{
const int len = Disasm(&disasm);
if (len == UNKNOWN_OPCODE) ++disasm.EIP;
else
{
processed += len;
disasm.EIP += len;
}
}
return processed;
}
// DetourFunc64*
const void* DetourFunc64(BYTE* const src, const BYTE* dest, const unsigned int jumplength)
{
// Allocate a memory page that is going to contain executable code.
MEMORY_BASIC_INFORMATION mbi;
for (SIZE_T addr = (SIZE_T)src; addr > (SIZE_T)src - 0x80000000; addr = (SIZE_T)mbi.BaseAddress - 1)
{
if (!VirtualQuery((LPCVOID)addr, &mbi, sizeof(mbi))) break;
if (mbi.State == MEM_FREE) if (presenthook64 = (HookContext*)VirtualAlloc(mbi.BaseAddress, 0x1000, MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE)) break;
}
// If allocating a memory page failed, the function failed.
if (!presenthook64)
{
return NULL;
}
// Select a pointer slot for the memory page to be freed on unload.
for (int i = 0; i < sizeof(detourBuffer) / sizeof(void*); ++i)
{
if (!detourBuffer[i])
{
detourBuffer[i] = presenthook64;
break;
}
}
// Save original code and apply detour. The detour code is:
BYTE detour[] = { 0x50, 0x48, 0xB8, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0x48, 0x87, 0x04, 0x24, 0xC3 };
const unsigned int length = DisasmLengthCheck((SIZE_T)src, jumplength);
memcpy(presenthook64->original_code, src, length);
memcpy(&presenthook64->original_code[length], detour, sizeof(detour));
*(SIZE_T*)&presenthook64->original_code[length + 3] = (SIZE_T)src + length;
// Build a far jump to the destination function.
*(WORD*)&presenthook64->far_jmp = 0x25FF;
*(DWORD*)(presenthook64->far_jmp + 2) = (DWORD)((SIZE_T)presenthook64 - (SIZE_T)src + FIELD_OFFSET(HookContext, dst_ptr) - 6);
presenthook64->dst_ptr = (SIZE_T)dest;
// Write the hook to the original function.
DWORD flOld = 0;
VirtualProtect(src, 6, PAGE_EXECUTE_READWRITE, &flOld);
memcpy(src, presenthook64->far_jmp, sizeof(presenthook64->far_jmp));
VirtualProtect(src, 6, flOld, &flOld);
// Return a pointer to the original code.
return presenthook64->original_code;
}
// InitializeHook*
DWORD __stdcall InitializeHook(LPVOID)
{
HWND hWnd = GetForegroundWindow();
IDXGISwapChain* pSwapChain;
D3D_FEATURE_LEVEL featureLevel = D3D_FEATURE_LEVEL_11_0;
DXGI_SWAP_CHAIN_DESC swapChainDesc;
ZeroMemory(&swapChainDesc, sizeof(swapChainDesc));
swapChainDesc.BufferCount = 1;
swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.OutputWindow = hWnd;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.Windowed = TRUE;//((GetWindowLong(hWnd, GWL_STYLE) & WS_POPUP) != 0) ? FALSE : TRUE;
swapChainDesc.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
swapChainDesc.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, NULL, &featureLevel, 1, D3D11_SDK_VERSION, &swapChainDesc, &pSwapChain, &pDevice, NULL, &pContext);
pSwapChainVtable = (DWORD_PTR*)pSwapChain;
pSwapChainVtable = (DWORD_PTR*)pSwapChainVtable[0];
pDeviceContextVTable = (DWORD_PTR*)pContext;
pDeviceContextVTable = (DWORD_PTR*)pDeviceContextVTable[0];
phookD3D11Present = (D3D11PresentHook)DetourFunc64((BYTE*)pSwapChainVtable[8], (BYTE*)hookD3D11Present, 16);
phookD3D11DrawIndexed = (D3D11DrawIndexedHook)DetourFunc64((BYTE*)pDeviceContextVTable[12], (BYTE*)hookD3D11DrawIndexed, 16);
phookD3D11ClearRenderTargetView = (D3D11ClearRenderTargetViewHook)DetourFunc64((BYTE*)pDeviceContextVTable[50], (BYTE*)hookD3D11ClearRenderTargetView, 16);
pDevice->Release();
pContext->Release();
pSwapChain->Release();
return NULL;
}
BOOL __stdcall DllMain(HINSTANCE hModule, DWORD dwReason, LPVOID lpReserved)
{
switch (dwReason)
{
case DLL_PROCESS_ATTACH:
{
memset(detourBuffer, 0, sizeof(detourBuffer) * sizeof(void*));
CreateThread(NULL, 0, InitializeHook, NULL, 0, NULL);
}
case DLL_PROCESS_DETACH:
{
if (pFontWrapper) pFontWrapper->Release();
for (int i = 0; i < sizeof(detourBuffer) / sizeof(void*); ++i) if (detourBuffer[i]) VirtualFree(detourBuffer[i], 0, MEM_RELEASE);
}
}
return TRUE;
}
我该如何解决？ 我的目标是创建头文件并使用 dllmain.cpp 中的函数，但我遇到了这个错误，感谢帮助者:)
也许你可以添加一些头部保护：
#ifndef _IDIRECT3DDEVICE10HOOK_H_
#define _IDIRECT3DDEVICE10HOOK_H_
#include "../graphics/includes.h"
#include "../hook/FW1FontWrapper.h"
#include "../hook/BeaEngine.h"
...
#endif
此外，我认为您在 .h 和 .cpp 文件中声明了相同的变量很奇怪：
HookContext *presenthook64;
ID3D11Device *pDevice = NULL;
ID3D11DeviceContext *pContext = NULL;
DWORD_PTR* pSwapChainVtable = NULL;
DWORD_PTR* pDeviceContextVTable = NULL;
D3D11PresentHook phookD3D11Present = NULL;
D3D11DrawIndexedHook phookD3D11DrawIndexed = NULL;
D3D11ClearRenderTargetViewHook phookD3D11ClearRenderTargetView = NULL;
IFW1Factory *pFW1Factory = NULL;
IFW1FontWrapper *pFontWrapper = NULL;
bool firstTime = true;
void* detourBuffer[3];
您在 header 文件中 定义了 变量。如果 header 包含在多个翻译单元中，当然会出现链接器错误。就像链接器告诉您的那样，您最终会得到同一变量的多个定义。
不要在 header 文件中定义变量。
如果您确实需要全局变量，那么 header 文件必须仅包含 non-defining 变量声明，例如
extern ID3D11Device *pDevice;
注意：添加了extern关键字，删除了初始值设定项。两者兼顾很重要。
定义（带有初始化器，如果有的话）进入实现文件
ID3D11Device *pDevice = NULL;
从您目前发布的内容来看，您已经将定义正确地放入了实现文件中。剩下要做的就是通过添加 extern 关键字并删除初始值设定项，将 header 中的定义转换为 non-defining 声明。