Question

我希望使用C＃服务为Windows 7设置壁纸。当服务作为控制台应用程序运行时，这可以正常工作。但安装服务并启动它后，它不会切换壁纸。任何人都知道如何在窗口内设置壁纸服务？

这是我的代码：

private String file = @"C://Users//Alvin//Pictures//onepiece.jpg";

/// <summary>
/// Set things in motion so your service can do its work.
/// </summary>
protected override void OnStart(string[] args)
{
    SetWallpaper(file, 0);
}

private void SetWallpaper(string WallpaperLocation, int WallpaperStyle)
{
    try
    {
        // Sets the actual wallpaper
        SystemParametersInfo(20, 0, "@" + WallpaperLocation, 0x01 | 0x02);
        // Set the wallpaper style to streched (can be changed to tile, center, maintain aspect ratio, etc.
        RegistryKey rkWallPaper = Registry.CurrentUser.OpenSubKey("Control Panel\\Desktop", true);
        // Sets the wallpaper style

        switch (walpaperStyle)
        {
            case 0:
                rkWallPaper.SetValue(@"WallpaperStyle", "0");
                rkWallPaper.SetValue(@"TileWallpaper", "1");
                break;
            case 1:
                rkWallPaper.SetValue(@"WallpaperStyle", "0");
                rkWallPaper.SetValue(@"TileWallpaper", "0");
                break;
            case 2:
                rkWallPaper.SetValue(@"WallpaperStyle", "2");
                rkWallPaper.SetValue(@"TileWallpaper", "0");
                break;
            case 3: // (Windows 7 and later)
                rkWallPaper.SetValue(@"WallpaperStyle", "6");
                rkWallPaper.SetValue(@"TileWallpaper", "0");
                break;
            case 4: // (Windows 7 and later)
                rkWallPaper.SetValue(@"WallpaperStyle", "10");
                rkWallPaper.SetValue(@"TileWallpaper", "0");
                break;
        }

        rkWallPaper.Close();
        cetakService("sukses set walpaper");
    }
    catch (Exception e)
    {
        cetakService("Error "+e.Message.ToString());
    }
}

Answer 1

如果您希望不时切换壁纸，请注意OnStart（）在服务启动时运行一次。我不知道你是如何通过SetWallpaper改变壁纸的。它实际上运行一次并设置壁纸。没有实现逻辑来继续更改要执行的不同情况的壁纸。此代码应在服务首次启动时更改壁纸，如果您希望这样做，请确保您的服务具有访问注册表值的足够权限。

如何使用服务c＃更改壁纸

1 个答案: