/// <summary>
/// load computer display name and icon
/// </summary>
/// <param name="displayName"></param>
/// <param name="computerIcon"></param>
public static void LoadComputer(out string displayName, out ImageSource computerIcon)
{
try
{
IntPtr ptrIDL = IntPtr.Zero;
var result = ShellAPI.SHGetSpecialFolderLocation(IntPtr.Zero, ShellAPI.CSIDL.CSIDL_DRIVES, ref ptrIDL);
if (result != 0)
{
Marshal.ThrowExceptionForHR(result);
}
ShellAPI.SHFILEINFO shellInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGFI vFlags =
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_ICON |
ShellAPI.SHGFI.SHGFI_PIDL |
ShellAPI.SHGFI.SHGFI_DISPLAYNAME |
ShellAPI.SHGFI.SHGFI_TYPENAME |
ShellAPI.SHGFI.SHGFI_ADDOVERLAYS;
ShellAPI.SHGetFileInfo(ptrIDL, 0, ref shellInfo, (uint)Marshal.SizeOf(shellInfo), vFlags);
displayName = shellInfo.szDisplayName;
computerIcon = GetImageSourceFromIcon(shellInfo.hIcon);
if (shellInfo.hIcon != IntPtr.Zero)
{
User32API.DestroyIcon(shellInfo.hIcon);
shellInfo.hIcon = IntPtr.Zero;
}
}
catch (Exception ex)
{
displayName = string.Empty;
computerIcon = null;
LogHelper.Debug("Application Exception:", ex);
}
}
public static ImageSource LoadDriveIcon(string path)
{
if (path == null)
{
return(null);
}
//TT91027 - The folder's icon doesn't display in the content list while restore the backup job which target is FTP.
//change ftp path '/' to '\' for XP.
path = path.Replace('/', '\\');
ShellAPI.SHFILEINFO shellInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGFI vFlags =
ShellAPI.SHGFI.SHGFI_LARGEICON |
ShellAPI.SHGFI.SHGFI_ICON |
ShellAPI.SHGFI.SHGFI_USEFILEATTRIBUTES |
ShellAPI.SHGFI.SHGFI_DISPLAYNAME;
ShellAPI.SHGetFileInfo(path, (uint)FileAttributes.Directory, ref shellInfo, (uint)Marshal.SizeOf(shellInfo), vFlags);
var ico = GetImageSourceFromIcon(shellInfo.hIcon);
if (shellInfo.hIcon != IntPtr.Zero)
{
User32API.DestroyIcon(shellInfo.hIcon);
shellInfo.hIcon = IntPtr.Zero;
}
return(ico);
}
/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <param name="attr"></param>
/// <returns>image,displayname,typename</returns>
public static Tuple <ImageSource, string, string> LoadFileInfoByPath(string path, FileAttributes attr = 0)
{
ImageSource icon = null;
//TT91027 - The folder's icon doesn't display in the content list while restore the backup job which target is FTP.
//change ftp path '/' to '\' for XP.
path = path.Replace('/', '\\');
ShellAPI.SHFILEINFO shellInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGFI vFlags =
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_ICON |
ShellAPI.SHGFI.SHGFI_USEFILEATTRIBUTES |
ShellAPI.SHGFI.SHGFI_DISPLAYNAME |
ShellAPI.SHGFI.SHGFI_TYPENAME;
ShellAPI.SHGetFileInfo(path, (uint)attr, ref shellInfo, (uint)Marshal.SizeOf(shellInfo), vFlags);
string displayName = shellInfo.szDisplayName;
if (shellInfo.hIcon != IntPtr.Zero)
{
icon = GetImageSourceFromIcon(shellInfo.hIcon);
User32API.DestroyIcon(shellInfo.hIcon);
shellInfo.hIcon = IntPtr.Zero;
}
string typeName = shellInfo.szTypeName;
return(new Tuple <ImageSource, string, string>(icon, displayName, typeName));
}
/// <summary>
/// Constructor to get the system ImageList.
/// </summary>
private ShellImageList()
{
imageTable = new Hashtable();
ShellAPI.SHGFI uFlags = ShellAPI.SHGFI.USEFILEATTRIBUTES |
ShellAPI.SHGFI.SYSICONINDEX |
ShellAPI.SHGFI.SMALLICON;
ShellAPI.SHFILEINFO sfiSmall = new ShellAPI.SHFILEINFO();
// get a handle to the system image list for small icons
smallImageListHandle =
ShellAPI.SHGetFileInfo(
".txt",
ShellAPI.FILE_ATTRIBUTE.NORMAL,
ref sfiSmall,
ShellAPI.cbFileInfo,
uFlags);
uFlags = ShellAPI.SHGFI.USEFILEATTRIBUTES |
ShellAPI.SHGFI.SYSICONINDEX |
ShellAPI.SHGFI.LARGEICON;
ShellAPI.SHFILEINFO sfiLarge = new ShellAPI.SHFILEINFO();
// get a handle to the system image list for large icons
largeImageListHandle =
ShellAPI.SHGetFileInfo(
".txt",
ShellAPI.FILE_ATTRIBUTE.NORMAL,
ref sfiLarge,
ShellAPI.cbFileInfo,
uFlags);
}
/// <summary>
/// Constructor for the desktop shell item.
/// </summary>
/// <param name="explorer">
/// Explorer class that uses the shell item.
/// </param>
/// <param name="pidl">
/// Pointer to the desktop PIDL.
/// </param>
/// <param name="folderPtr">
/// Pointer to the IShellFolder interface for the desktop.
/// </param>
internal ShellItem(ShellExplorer explorer, IntPtr pidl, IntPtr folderPtr)
{
this.explorer = explorer;
parent = null;
this.folderPtr = folderPtr;
// get managed object
this.folder =
(IShellFolder)Marshal.GetTypedObjectForIUnknown(folderPtr, typeof(IShellFolder));
subFiles = new ShellItemList(this);
subFolders = new ShellItemList(this);
relPidl = new PIDL(pidl, false);
text = "Desktop";
path = "Desktop";
SetDesktopAttributes();
ShellAPI.SHFILEINFO info = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(relPidl.Ptr,
0,
ref info,
ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL |
ShellAPI.SHGFI.TYPENAME |
ShellAPI.SHGFI.SYSICONINDEX);
type = info.szTypeName;
ShellImageList.SetIconIndex(this, info.iIcon, false);
ShellImageList.SetIconIndex(this, info.iIcon, true);
}
/// <summary>
/// Load file icon, file type from shell
/// </summary>
/// <param name="path">The path.</param>
/// <param name="attributes">The attr.</param>
public static System.Windows.Media.ImageSource LoadFileInfo(string path, out string typeName)
{
FileAttributes attributes;
if (CommonProvider.Directory.Exists(path))
{
attributes = FileAttributes.Directory;
}
else if (CommonProvider.File.Exists(path))
{
attributes = FileAttributes.Normal;
}
else
{
typeName = string.Empty;
return(null);
}
typeName = string.Empty;
if (path == null)
{
return(null);
}
//TT91027 - The folder's icon doesn't display in the content list while restore the backup job which target is FTP.
//change ftp path '/' to '\' for XP.
path = path.Replace('/', '\\');
ShellAPI.SHFILEINFO shellInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGFI vFlags =
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_ICON |
ShellAPI.SHGFI.SHGFI_USEFILEATTRIBUTES |
ShellAPI.SHGFI.SHGFI_TYPENAME;
ShellAPI.SHGetFileInfo(path, (uint)attributes, ref shellInfo, (uint)Marshal.SizeOf(shellInfo), vFlags);
var ico = GetImageSourceFromIcon(shellInfo.hIcon);
//displayName = shellInfo.szDisplayName;
if (shellInfo.hIcon != IntPtr.Zero)
{
User32API.DestroyIcon(shellInfo.hIcon);
shellInfo.hIcon = IntPtr.Zero;
}
typeName = shellInfo.szTypeName;
if (ico == null && attributes == FileAttributes.Directory)
{
ico = DefaultFolderImage;
}
return(ico);
}
/// <summary>
/// Retrieve the string that describes the file's type.
/// </summary>
private void SetInfo()
{
PIDL fullPidl = FullPidl;
ShellAPI.SHFILEINFO info = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(fullPidl.Ptr,
0,
ref info,
ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL |
ShellAPI.SHGFI.TYPENAME |
ShellAPI.SHGFI.SYSICONINDEX);
fullPidl.Free();
type = info.szTypeName;
ShellImageList.SetIconIndex(this, info.iIcon, false);
ShellImageList.SetIconIndex(this, info.iIcon, true);
}
/// <summary>
/// Load file information, dislpay name, icon, file type from shell
/// </summary>
/// <param name="pidl">The pidl.</param>
void LoadFileInfo(IntPtr pidl)
{
ShellAPI.SHFILEINFO shellInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGFI vFlags =
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_ICON |
ShellAPI.SHGFI.SHGFI_PIDL |
ShellAPI.SHGFI.SHGFI_DISPLAYNAME |
ShellAPI.SHGFI.SHGFI_TYPENAME |
ShellAPI.SHGFI.SHGFI_ADDOVERLAYS;
ShellAPI.SHGetFileInfo(pidl, 0, ref shellInfo, (uint)Marshal.SizeOf(shellInfo), vFlags);
DisplayName = shellInfo.szDisplayName;
if (shellInfo.hIcon != IntPtr.Zero)
{
Icon = GetImageSourceFromIcon(shellInfo.hIcon);
User32API.DestroyIcon(shellInfo.hIcon);
shellInfo.hIcon = IntPtr.Zero;
}
TypeName = shellInfo.szTypeName;
}
/// <summary>
/// Load file information, dislpay name, icon, file type from shell
/// </summary>
/// <param name="path">The path.</param>
/// <param name="attr">The attr.</param>
void LoadFileInfo(string path, FileAttributes attr)
{
//TT91027 - The folder's icon doesn't display in the content list while restore the backup job which target is FTP.
//change ftp path '/' to '\' for XP.
path = path.Replace('/', '\\');
ShellAPI.SHFILEINFO shellInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGFI vFlags =
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_ICON |
ShellAPI.SHGFI.SHGFI_USEFILEATTRIBUTES |
ShellAPI.SHGFI.SHGFI_DISPLAYNAME |
ShellAPI.SHGFI.SHGFI_TYPENAME;
ShellAPI.SHGetFileInfo(path, (uint)attr, ref shellInfo, (uint)Marshal.SizeOf(shellInfo), vFlags);
DisplayName = shellInfo.szDisplayName;
if (shellInfo.hIcon != IntPtr.Zero)
{
Icon = GetImageSourceFromIcon(shellInfo.hIcon);
ShellAPI.DestroyIcon(shellInfo.hIcon);
shellInfo.hIcon = IntPtr.Zero;
}
TypeName = shellInfo.szTypeName;
}
/// <summary>
/// Load file icon
/// </summary>
/// <param name="path">The path.</param>
/// <param name="attributes">The attr.</param>
public static ImageSource LoadFileInfo(string path, FileAttributes attributes)
{
if (path == null)
{
return(null);
}
if (attributes == FileAttributes.Normal)
{
if (!CommonProvider.File.Exists(path))
{
path = Path.GetFileName(path);
}
}
//TT91027 - The folder's icon doesn't display in the content list while restore the backup job which target is FTP.
//change ftp path '/' to '\' for XP.
path = path.Replace('/', '\\');
ShellAPI.SHFILEINFO shellInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGFI vFlags =
ShellAPI.SHGFI.SHGFI_SMALLICON |
ShellAPI.SHGFI.SHGFI_ICON |
ShellAPI.SHGFI.SHGFI_USEFILEATTRIBUTES;
ShellAPI.SHGetFileInfo(path, (uint)attributes, ref shellInfo, (uint)Marshal.SizeOf(shellInfo), vFlags);
var ico = GetImageSourceFromIcon(shellInfo.hIcon);
if (shellInfo.hIcon != IntPtr.Zero)
{
User32API.DestroyIcon(shellInfo.hIcon);
shellInfo.hIcon = IntPtr.Zero;
}
if (ico == null && attributes == FileAttributes.Directory)
{
ico = DefaultFolderImage;
}
return(ico);
}
/// <summary>
/// Returns the icon index for the given ShellItem.
/// </summary>
/// <param name="item">
/// ShellItem for which the icon index is calculated.
/// </param>
/// <param name="selected">
/// True if the item is selected, false otherwise.
/// </param>
public int GetIconIndex(ShellItem item, bool selected)
{
bool hasOverlay = false;
int index = item.ImageIndex;
int res;
ShellAPI.FILE_ATTRIBUTE dwFileAttrib = 0;
ShellAPI.SHGFI uFlags = ShellAPI.SHGFI.ICON |
ShellAPI.SHGFI.PIDL |
ShellAPI.SHGFI.SYSICONINDEX;
int key = item.ImageIndex << 8;
// check for overlays
if (item.IsLink)
{
key = key | 1;
uFlags = uFlags | ShellAPI.SHGFI.LINKOVERLAY;
hasOverlay = true;
}
if (item.IsShared)
{
key = key | 2;
uFlags = uFlags | ShellAPI.SHGFI.ADDOVERLAYS;
hasOverlay = true;
}
// not really an overlay, but handled the same
if (selected)
{
key = key | 4;
uFlags = uFlags | ShellAPI.SHGFI.OPENICON;
hasOverlay = true;
}
if (imageTable.ContainsKey(key))
{
res = (int)imageTable[key];
} // for non-overlay icons we already have the index
else if (!hasOverlay && !item.IsHidden)
{
res = index;
imageTable[key] = index;
} // don't have icon index for an overlay
else
{
if (item.IsFileSystem && !item.IsDisk && !item.IsFolder)
{
uFlags |= ShellAPI.SHGFI.USEFILEATTRIBUTES;
dwFileAttrib = ShellAPI.FILE_ATTRIBUTE.NORMAL;
}
ShellAPI.SHFILEINFO sfiSmall = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(item.FullPidl, dwFileAttrib, ref sfiSmall, ShellAPI.cbFileInfo, uFlags | ShellAPI.SHGFI.SMALLICON);
ShellAPI.SHFILEINFO sfiLarge = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(item.FullPidl, dwFileAttrib, ref sfiLarge, ShellAPI.cbFileInfo, uFlags | ShellAPI.SHGFI.LARGEICON);
lock (padlock)
{
// add overlaid icon to the image list
res = ShellAPI.ImageList_ReplaceIcon(smallImageListHandle, -1, sfiSmall.hIcon);
ShellAPI.ImageList_ReplaceIcon(largeImageListHandle, -1, sfiLarge.hIcon);
}
ShellAPI.DestroyIcon(sfiSmall.hIcon);
ShellAPI.DestroyIcon(sfiLarge.hIcon);
imageTable[key] = res;
}
return(res);
}
