C++ 使用 DirectInput 模拟鼠标移动

以下是使用 DirectInput 模拟鼠标移动的示例代码：

首先，需要引入 DirectInput 库：

#include <dinput.h>
#pragma comment(lib, "dinput8.lib")
#pragma comment(lib, "dxguid.lib")

然后，需要创建 DirectInput 对象和鼠标设备：

LPDIRECTINPUT8 di; // DirectInput 对象
LPDIRECTINPUTDEVICE8 mouse; // 鼠标设备

// 创建 DirectInput 对象
DirectInput8Create(GetModuleHandle(NULL), DIRECTINPUT_VERSION, IID_IDirectInput8, (void**)&di, NULL);

// 创建鼠标设备
di->CreateDevice(GUID_SysMouse, &mouse, NULL);
mouse->SetDataFormat(&c_dfDIMouse);
mouse->SetCooperativeLevel(NULL, DISCL_FOREGROUND | DISCL_NONEXCLUSIVE);
mouse->Acquire();

接下来，可以使用鼠标设备的方法模拟鼠标移动：

// 模拟鼠标移动
DIMOUSESTATE mouseState;
ZeroMemory(&mouseState, sizeof(mouseState));
mouseState.lX = x; // x 为水平移动距离
mouseState.lY = y; // y 为垂直移动距离
mouse->SetProperty(DIPROP_BUFFERSIZE, &bufferSize);
mouse->GetDeviceState(sizeof(mouseState), &mouseState);

最后，需要释放鼠标设备和 DirectInput 对象：

mouse->Unacquire();
mouse->Release();
di->Release();

完整代码示例：

#include <windows.h>
#include <dinput.h>
#pragma comment(lib, "dinput8.lib")
#pragma comment(lib, "dxguid.lib")

int main()
{
    // 创建窗口
    HWND hwnd = CreateWindow("STATIC", "DirectInput Mouse", WS_POPUP, 0, 0, 640, 480, NULL, NULL, NULL, NULL);
    ShowWindow(hwnd, SW_SHOW);

    // 创建 DirectInput 对象和鼠标设备
    LPDIRECTINPUT8 di;
    LPDIRECTINPUTDEVICE8 mouse;
    DirectInput8Create(GetModuleHandle(NULL), DIRECTINPUT_VERSION, IID_IDirectInput8, (void**)&di, NULL);
    di->CreateDevice(GUID_SysMouse, &mouse, NULL);
mouse->SetDataFormat(&c_dfDIMouse);
mouse->SetCooperativeLevel(NULL, DISCL_FOREGROUND | DISCL_NONEXCLUSIVE);
mouse->Acquire();

    // 模拟鼠标移动
    int x = 10, y = 10;
    DIMOUSESTATE mouseState;
    ZeroMemory(&mouseState, sizeof(mouseState));
mouseState.lX = x;
mouseState.lY = y;
    DWORD bufferSize = 16;
mouse->SetProperty(DIPROP_BUFFERSIZE, &bufferSize);
mouse->GetDeviceState(sizeof(mouseState), &mouseState);

    // 释放鼠标设备和 DirectInput 对象
mouse->Unacquire();
mouse->Release();
di->Release();

    // 关闭窗口
    DestroyWindow(hwnd);
    return 0;
}