вот решение при решения этой задачи
| Код |
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.IO;
using System.Data;
using Microsoft.Win32 ;
namespace ChangeWallpaper
{
using System.Net ;
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button btnBrowse;
private System.Windows.Forms.Button btnApply;
private System.Windows.Forms.OpenFileDialog openFileDialog1;
private System.Windows.Forms.ComboBox comboBox1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.textBox1 = new System.Windows.Forms.TextBox();
this.btnBrowse = new System.Windows.Forms.Button();
this.btnApply = new System.Windows.Forms.Button();
this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
this.comboBox1 = new System.Windows.Forms.ComboBox();
this.SuspendLayout();
//
// textBox1
//
this.textBox1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.textBox1.Location = new System.Drawing.Point(8, 8);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(312, 20);
this.textBox1.TabIndex = 0;
this.textBox1.Text = "C:\\Documents and Settings\\All Users\\Documents\\My Pictures\\Sample Pictures\\winter." +
"jpg";
//
// btnBrowse
//
this.btnBrowse.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.btnBrowse.Location = new System.Drawing.Point(336, 8);
this.btnBrowse.Name = "btnBrowse";
this.btnBrowse.TabIndex = 1;
this.btnBrowse.Text = "&Browse";
this.btnBrowse.Click += new System.EventHandler(this.btnBrowse_Click);
//
// btnApply
//
this.btnApply.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.btnApply.Location = new System.Drawing.Point(360, 64);
this.btnApply.Name = "btnApply";
this.btnApply.TabIndex = 1;
this.btnApply.Text = "&Apply";
this.btnApply.Click += new System.EventHandler(this.btnApply_Click);
//
// comboBox1
//
this.comboBox1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.comboBox1.Items.AddRange(new object[] {
"Stretched",
"Centered",
"Tiled"});
this.comboBox1.Location = new System.Drawing.Point(8, 40);
this.comboBox1.Name = "comboBox1";
this.comboBox1.Size = new System.Drawing.Size(312, 21);
this.comboBox1.TabIndex = 2;
this.comboBox1.Text = "Stretched";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(440, 94);
this.Controls.Add(this.comboBox1);
this.Controls.Add(this.btnBrowse);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.btnApply);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void btnBrowse_Click(object sender, System.EventArgs e)
{
openFileDialog1.InitialDirectory = "C:\\";
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
textBox1.Text = openFileDialog1.FileName;
}
}
private void btnApply_Click(object sender, System.EventArgs e)
{
string s = comboBox1.Text ;
Wallpaper.Style s2 = (Wallpaper.Style )Enum.Parse( typeof( Wallpaper.Style ), s, false ) ;
Wallpaper.Set( new Uri( textBox1.Text ),
s2 ) ;
}
}
public sealed class Wallpaper
{
Wallpaper( ) { }
const int SPI_SETDESKWALLPAPER = 20 ;
const int SPIF_UPDATEINIFILE = 0x01;
const int SPIF_SENDWININICHANGE = 0x02;
[DllImport("user32.dll", CharSet=CharSet.Auto)]
static extern int SystemParametersInfo (int uAction , int uParam , string lpvParam , int fuWinIni) ;
public enum Style : int
{
Tiled,
Centered,
Stretched
}
public static void Set ( Uri uri, Style style )
{
System.IO.Stream s = new WebClient( ).OpenRead( uri.ToString( ) );
System.Drawing.Image img = System.Drawing.Image.FromStream( s );
string tempPath = Path.Combine( Path.GetTempPath( ), "wallpaper.bmp" ) ;
img.Save( tempPath , System.Drawing.Imaging.ImageFormat.Bmp ) ;
RegistryKey key = Registry.CurrentUser.OpenSubKey( @"Control Panel\Desktop", true ) ;
if ( style == Style.Stretched )
{
key.SetValue(@"WallpaperStyle", 2.ToString( ) ) ;
key.SetValue(@"TileWallpaper", 0.ToString( ) ) ;
}
if ( style == Style.Centered )
{
key.SetValue(@"WallpaperStyle", 1.ToString( ) ) ;
key.SetValue(@"TileWallpaper", 0.ToString( ) ) ;
}
if ( style == Style.Tiled )
{
key.SetValue(@"WallpaperStyle", 1.ToString( ) ) ;
key.SetValue(@"TileWallpaper", 1.ToString( ) ) ;
}
SystemParametersInfo( SPI_SETDESKWALLPAPER,
0,
tempPath,
SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE );
}
}
}
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