Add initial wallpaper changing code

DisplayMagician/Program.cs

@@ -35,6 +35,7 @@ namespace DisplayMagician {
         public static string AppIconPath = Path.Combine(Program.AppDataPath, $"Icons");
         public static string AppProfilePath = Path.Combine(Program.AppDataPath, $"Profiles");
         public static string AppShortcutPath = Path.Combine(Program.AppDataPath, $"Shortcuts");
+        public static string AppWallpaperPath = Path.Combine(Program.AppDataPath, $"Wallpaper");
         public static string AppLogPath = Path.Combine(Program.AppDataPath, $"Logs");
         public static string AppDisplayMagicianIconFilename = Path.Combine(AppIconPath, @"DisplayMagician.ico");
         public static string AppOriginIconFilename = Path.Combine(AppIconPath, @"Origin.ico");

DisplayMagicianShared/DisplayMagicianShared.csproj

@@ -85,6 +85,7 @@
     <Compile Include="UserControls\DisplayView.Designer.cs">
       <DependentUpon>DisplayView.cs</DependentUpon>
     </Compile>
+    <Compile Include="Wallpaper.cs" />
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="Properties\Resources.resx">

DisplayMagicianShared/ProfileItem.cs

@@ -21,11 +21,13 @@ namespace DisplayMagicianShared
         private List<string> _profileDisplayIdentifiers = new List<string>();
 
         internal static string AppDataPath = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "DisplayMagician");
+        private static string AppWallpaperPath = Path.Combine(AppDataPath, $"Wallpaper");
         private static readonly string uuidV4Regex = @"(?im)^[{(]?[0-9A-F]{8}[-]?(?:[0-9A-F]{4}[-]?){3}[0-9A-F]{12}[)}]?$";
 
         private string _uuid = "";
         private bool _isPossible = false;
         private Keys _hotkey = Keys.None;
+        private string _wallpaperBitmapFilename = "";
 
 
         #region JsonConverterBitmap
@@ -178,6 +180,19 @@ namespace DisplayMagicianShared
 
         public string SavedProfileIconCacheFilename { get; set; }
 
+        public bool SetWallpaper { get; set; }
+
+        public string WallpaperBitmapFilename{ 
+            get
+            {
+                return _wallpaperBitmapFilename;
+            }
+            set
+            {
+                _wallpaperBitmapFilename = value;
+            }
+        }
+
         public List<string> ProfileDisplayIdentifiers
         {
             get
@@ -268,7 +283,13 @@ namespace DisplayMagicianShared
                 ProfileBitmap is Bitmap &&
                 ProfileTightestBitmap is Bitmap &&
                 ProfileDisplayIdentifiers.Count > 0)
+            {
+                if (SetWallpaper && WallpaperBitmapFilename == "")
+                    return false;
+
                 return true;
+            }
+                
             else 
                 return false;
         }
@@ -291,6 +312,8 @@ namespace DisplayMagicianShared
             profile.ProfileBitmap = ProfileBitmap;
             profile.ProfileTightestBitmap = ProfileTightestBitmap;
             profile.ProfileDisplayIdentifiers = ProfileDisplayIdentifiers;
+            profile.SetWallpaper = SetWallpaper;
+            profile.WallpaperBitmapFilename = WallpaperBitmapFilename;
             return true;
         }
 

DisplayMagicianShared/ProfileRepository.cs

@@ -212,6 +212,7 @@ namespace DisplayMagicianShared
                 try
                 {
                     File.Delete(ProfileToRemove.SavedProfileIconCacheFilename);
+                    File.Delete(ProfileToRemove.WallpaperBitmapFilename);
                 }
                 catch (UnauthorizedAccessException ex)
                 {
@@ -263,6 +264,7 @@ namespace DisplayMagicianShared
                 try
                 {
                     File.Delete(ProfileToRemove.SavedProfileIconCacheFilename);
+                    File.Delete(ProfileToRemove.WallpaperBitmapFilename);
                 }
                 catch (UnauthorizedAccessException ex)
                 {
@@ -312,6 +314,7 @@ namespace DisplayMagicianShared
                 try
                 {
                     File.Delete(ProfileToRemove.SavedProfileIconCacheFilename);
+                    File.Delete(ProfileToRemove.WallpaperBitmapFilename);
                 }
                 catch (UnauthorizedAccessException ex)
                 {
@@ -498,41 +501,6 @@ namespace DisplayMagicianShared
 
         }
 
-
-        /*public static void UpdateActiveProfile()
-        {
-
-            SharedLogger.logger.Debug($"ProfileRepository/UpdateActiveProfile: Updating the profile currently active (in use now).");
-
-            ProfileItem activeProfile = new ProfileItem
-            {
-                Name = "Current Display Profile",
-                Paths = PathInfo.GetActivePaths().Select(info => new DisplayMagicianShared.Topology.Path(info)).ToArray()
-            };
-
-            activeProfile.ProfileIcon = new ProfileIcon(activeProfile);
-            activeProfile.ProfileBitmap = activeProfile.ProfileIcon.ToBitmap(256, 256);
-
-            if (_profilesLoaded && _allProfiles.Count > 0)
-            {
-                foreach (ProfileItem loadedProfile in ProfileRepository.AllProfiles)
-                {
-                    if (activeProfile.Paths.SequenceEqual(loadedProfile.Paths))
-                    {
-                        _currentProfile = loadedProfile;
-                        SharedLogger.logger.Debug($"ProfileRepository/UpdateActiveProfile: The profile {loadedProfile.Name} is currently active (in use now).");
-                        return;
-                    }
-                }
-            }
-            SharedLogger.logger.Debug($"ProfileRepository/UpdateActiveProfile: The current profile is a new profile that doesn't already exist in the Profile Repository.");
-            _currentProfile = activeProfile;
-
-            //IsPossibleRefresh();
-
-        }*/
-
-
         public static void UpdateActiveProfile()
         {
 

DisplayMagicianShared/Wallpaper.cs

@@ -0,0 +1,62 @@
+using Microsoft.Win32;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DisplayMagicianShared
+{
+    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 SetAndSave(Uri uri, Style style, string filename)
+        {
+            System.IO.Stream s = new System.Net.WebClient().OpenRead(uri.ToString());
+
+            System.Drawing.Image img = System.Drawing.Image.FromStream(s);            
+            img.Save(filename, 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,
+                filename,
+                SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE);
+        }
+    }
+}