windows 应用壁纸的两种方式

#include <windows.h>
#include <shobjidl.h>  // 包含IDesktopWallpaper接口定义
#include <wincodec.h>  // WIC头文件
#include <iostream>

bool SetWallpaper1(const wchar_t* imagePath) {
    // SPI_SETDESKWALLPAPER = 0x0014
    BOOL result = SystemParametersInfoW(
        SPI_SETDESKWALLPAPER,
        0,
        (PVOID)imagePath,
        SPIF_UPDATEINIFILE | SPIF_SENDCHANGE
    );

    if (!result) {
        std::wcerr << L"错误: " << GetLastError() << std::endl;
        return false;
    }
    return true;
}

bool SetWallpaper2(const wchar_t* imagePath) {
    HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
    if (FAILED(hr)) return false;

    IDesktopWallpaper* pWallpaper = nullptr;
    hr = CoCreateInstance(
        __uuidof(DesktopWallpaper),
        nullptr,
        CLSCTX_ALL,
        __uuidof(IDesktopWallpaper),
        reinterpret_cast<void**>(&pWallpaper)
    );

    if (SUCCEEDED(hr)) {
        hr = pWallpaper->SetWallpaper(nullptr, imagePath);
        pWallpaper->Release();
    }

    CoUninitialize();
    return SUCCEEDED(hr);
}