static IntPtr getSizedIcon(int iImage)
{
IImageList spiml = null;
Guid guil = new Guid(IID_IImageList2);//or IID_IImageList
Shell32.SHGetImageList(Program.selectedSize, ref guil, ref spiml);
IntPtr hIcon = IntPtr.Zero;
spiml.GetIcon(iImage, Shell32.ILD_TRANSPARENT | Shell32.ILD_IMAGE, ref hIcon);
return(hIcon);
}
public Icon ExtractAssociatedIcon(string filename)
{
if (!System.IO.Directory.Exists(filename) && !System.IO.File.Exists(filename))
{
return(null);
}
int index = 0;
StringBuilder sbFilename = new StringBuilder(260);
sbFilename.Append(filename);
IntPtr hico = Shell32.ExtractAssociatedIcon(IntPtr.Zero, sbFilename, ref index);
return(Icon.FromHandle(hico));
}
static string getIconAsBase64(string path)
{
if (useShortcutPath && path.EndsWith(".lnk"))
{
path = getShortcutTarget(path);
}
Icon iconForPath = SystemIcons.Application;
if (System.IO.File.Exists(path))
{
//iconForPath = Icon.ExtractAssociatedIcon(path);
IntPtr hIcon = getSizedIcon(getIconIndex(path));
iconForPath = (Icon)Icon.FromHandle(hIcon).Clone();
Shell32.DestroyIcon(hIcon); // don't forget to cleanup
}
ImageConverter vert = new ImageConverter();
byte[] data = (byte[])vert.ConvertTo(iconForPath.ToBitmap(), typeof(byte[]));
return(Convert.ToBase64String(data));
}
public Bitmap LoadImageFromExtractIcon(string filename)
{
if (!System.IO.Directory.Exists(filename) && !System.IO.File.Exists(filename))
{
return(null);
}
Bitmap bm1 = null;
IntPtr hbitmap = IntPtr.Zero;
IShellFolder desktop = null;
IntPtr pidlParent = IntPtr.Zero;
IShellFolder shellFolder = null;
IUnknown iunk = null;
IExtractIcon extractIcon = null;
try
{
Debug.Write("Trying IExtractIcon\r\n");
Shell32.SHGetDesktopFolder(ref desktop);
int cParsed = 0;
int pdwAttrib = 0;
string filePath = filename;
if (System.IO.File.Exists(filename))
{
filePath = System.IO.Path.GetDirectoryName(filename);
}
desktop.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, filePath, out cParsed, out pidlParent, out pdwAttrib);
Guid uuidShellFolder = new Guid("000214E6-0000-0000-C000-000000000046");
desktop.BindToObject(pidlParent, IntPtr.Zero, ref uuidShellFolder, out shellFolder);
Guid uuidExtractIcon = new Guid("000214eb-0000-0000-c000-000000000046");
iunk = GetUIObject(shellFolder, filename, uuidExtractIcon);
if (iunk == null)
{
Debug.Write(" IExtractIcon not supported\r\n");
return(null);
}
int hres = 0;
extractIcon = (IExtractIcon)iunk;
StringBuilder location = new StringBuilder(260, 260);
int iconIndex = 0;
GILFLAGS2 flags = GILFLAGS2.GIL_None;
hres = extractIcon.GetIconLocation(0, location, location.Capacity, out iconIndex, out flags);
IntPtr iconLarge = IntPtr.Zero;
IntPtr iconSmall = IntPtr.Zero;
uint iconSize = (16 | (48 << 16));
hres = extractIcon.Extract(location, iconIndex, out iconLarge, out iconSmall, iconSize);
Icon ico = Icon.FromHandle(iconLarge);
bm1 = ico.ToBitmap();
}
catch (Exception e)
{
Debug.Write(" Exception extracting image from IExtractIcon: " + e.Message + "\r\n");
}
finally
{
if (extractIcon != null)
{
Marshal.ReleaseComObject(extractIcon);
extractIcon = null;
}
if (iunk != null)
{
Marshal.ReleaseComObject(iunk);
iunk = null;
}
if (shellFolder != null)
{
Marshal.ReleaseComObject(shellFolder);
shellFolder = null;
}
if (pidlParent != IntPtr.Zero)
{
Allocator.Free(pidlParent);
pidlParent = IntPtr.Zero;
}
if (desktop != null)
{
Marshal.ReleaseComObject(desktop);
desktop = null;
}
if (_allocator != null)
{
Marshal.ReleaseComObject(_allocator);
_allocator = null;
}
}
return(bm1);
}
public Bitmap LoadThumbnailFromExtractImage(string filename, Size requestedSize)
{
if (!System.IO.Directory.Exists(filename) && !System.IO.File.Exists(filename))
{
return(null);
}
Bitmap bm1 = null;
IntPtr hbitmap = IntPtr.Zero;
SIZE sz = new SIZE(requestedSize.Width, requestedSize.Height);
IShellFolder desktop = null;
IntPtr pidlParent = IntPtr.Zero;
IShellFolder shellFolder = null;
IUnknown iunk = null;
IExtractImage extractImage = null;
try
{
Debug.Write("Trying IExtractImage\r\n");
Shell32.SHGetDesktopFolder(ref desktop);
int cParsed = 0;
int pdwAttrib = 0;
string filePath = filename;
if (System.IO.File.Exists(filename))
{
filePath = System.IO.Path.GetDirectoryName(filename);
}
desktop.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, filePath, out cParsed, out pidlParent, out pdwAttrib);
Guid uuidShellFolder = new Guid("000214E6-0000-0000-C000-000000000046");
desktop.BindToObject(pidlParent, IntPtr.Zero, ref uuidShellFolder, out shellFolder);
Guid uuidExtractImage = new Guid("BB2E617C-0920-11d1-9A0B-00C04FC2D6C1");
iunk = GetUIObject(shellFolder, filename, uuidExtractImage);
if (iunk == null)
{
Debug.Write(" IExtractImage not supported\r\n");
return(null);
}
extractImage = (IExtractImage)iunk;
StringBuilder location = new StringBuilder(260, 260);
int priority = 0;
EIEIFLAG flags = EIEIFLAG.IEIFLAG_ORIGSIZE;
int uFlags = (int)flags;
extractImage.GetLocation(location, location.Capacity, ref priority, ref sz, 32, ref uFlags);
extractImage.Extract(out hbitmap);
bm1 = GetBitmapFromHbitmap(hbitmap);
}
catch (Exception e)
{
Debug.Write(" Exception extracting image from IExtractImage: " + e.Message + "\r\n");
}
finally
{
if (extractImage != null)
{
Marshal.ReleaseComObject(extractImage);
extractImage = null;
}
if (iunk != null)
{
Marshal.ReleaseComObject(iunk);
iunk = null;
}
if (shellFolder != null)
{
Marshal.ReleaseComObject(shellFolder);
shellFolder = null;
}
if (pidlParent != IntPtr.Zero)
{
Allocator.Free(pidlParent);
pidlParent = IntPtr.Zero;
}
if (desktop != null)
{
Marshal.ReleaseComObject(desktop);
desktop = null;
}
if (_allocator != null)
{
Marshal.ReleaseComObject(_allocator);
_allocator = null;
}
}
return(bm1);
}
public Bitmap LoadThumbnailFromImageFactory(string filename, Size requestedSize, bool onlyThumbnail)
{
if (!System.IO.Directory.Exists(filename) && !System.IO.File.Exists(filename))
{
return(null);
}
Bitmap bm1 = null;
IntPtr hbitmap = IntPtr.Zero;
SIZE sz = new SIZE(requestedSize.Width, requestedSize.Height);
IShellFolder desktop = null;
IntPtr pidlMain = IntPtr.Zero;
IShellItem shellItem = null;
IShellItemImageFactory ppsiShellItemImageFactory = null;
try
{
Shell32.SHGetDesktopFolder(ref desktop);
int cParsed = 0;
int pdwAttrib = 0;
desktop.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, filename, out cParsed, out pidlMain, out pdwAttrib);
//Shell32.SHCreateItemFromIDList(pidlMain, uuidIShellItem, out shellItem);
Shell32.SHCreateShellItem(IntPtr.Zero, null, pidlMain, out shellItem);
ppsiShellItemImageFactory = (IShellItemImageFactory)shellItem;
if (onlyThumbnail)
{
ppsiShellItemImageFactory.GetImage(sz, SIIGBF.SIIGBF_BIGGERSIZEOK | SIIGBF.SIIGBF_THUMBNAILONLY, out hbitmap);
}
else
{
ppsiShellItemImageFactory.GetImage(sz, SIIGBF.SIIGBF_BIGGERSIZEOK, out hbitmap);
}
bm1 = GetBitmapFromHbitmap(hbitmap);
}
catch (InvalidCastException)
{
Debug.Write(" Did not support IShellItemImageFactory\r\n");
}
catch (Exception e)
{
Debug.Write(" Exception extracting image from IShellItemImageFactory: " + e.Message + "\r\n");
}
finally
{
if (ppsiShellItemImageFactory != null)
{
Marshal.ReleaseComObject(ppsiShellItemImageFactory);
ppsiShellItemImageFactory = null;
}
if (shellItem != null)
{
Marshal.ReleaseComObject(shellItem);
shellItem = null;
}
if (pidlMain != IntPtr.Zero)
{
Allocator.Free(pidlMain);
pidlMain = IntPtr.Zero;
}
if (desktop != null)
{
Marshal.ReleaseComObject(desktop);
desktop = null;
}
if (_allocator != null)
{
Marshal.ReleaseComObject(_allocator);
_allocator = null;
}
}
return(bm1);
}
