C++ DirectInput 模拟鼠标移动 DLL 代码示例

#define DIRECTINPUT_VERSION 0x0800 #include <dinput.h>

#pragma comment(lib, "dinput8.lib") #pragma comment(lib, "dxguid.lib")

LPDIRECTINPUT8 g_pDI = NULL; LPDIRECTINPUTDEVICE8 g_pMouse = NULL;

BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) { switch (ul_reason_for_call) { case DLL_PROCESS_ATTACH: // 初始化DirectInput DirectInput8Create(GetModuleHandle(NULL), DIRECTINPUT_VERSION, IID_IDirectInput8, (void**)&g_pDI, NULL);

    // 创建鼠标设备
    g_pDI->CreateDevice(GUID_SysMouse, &g_pMouse, NULL);

    // 设置鼠标数据格式
    g_pMouse->SetDataFormat(&c_dfDIMouse);

    // 设置鼠标协作级别
    g_pMouse->SetCooperativeLevel(NULL, DISCL_BACKGROUND | DISCL_NONEXCLUSIVE);

    // 设置鼠标缓冲区大小
    DIPROPDWORD dipdw;
    dipdw.diph.dwSize = sizeof(DIPROPDWORD);
    dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
    dipdw.diph.dwObj = 0;
    dipdw.diph.dwHow = DIPH_DEVICE;
    dipdw.dwData = 16;
    g_pMouse->SetProperty(DIPROP_BUFFERSIZE, &dipdw.diph);

    // 启动鼠标设备
    g_pMouse->Acquire();
    break;

case DLL_PROCESS_DETACH:
    // 释放鼠标设备
    if (g_pMouse)
    {
        g_pMouse->Unacquire();
        g_pMouse->Release();
        g_pMouse = NULL;
    }

    // 释放DirectInput
    if (g_pDI)
    {
        g_pDI->Release();
        g_pDI = NULL;
    }
    break;
}

return TRUE;

}

// 模拟鼠标移动 void MoveMouse(int deltaX, int deltaY) { DIMOUSESTATE2 dims; memset(&dims, 0, sizeof(dims)); dims.lX = deltaX; dims.lY = deltaY;

g_pMouse->SetDataFormat(&c_dfDIMouse);
g_pMouse->Acquire();
g_pMouse->GetDeviceState(sizeof(DIMOUSESTATE2), &dims);
g_pMouse->Unacquire();

}