protected Bitmap GetGenericIcon(IntPtr ptr, IconSize size, bool isFolder = false, bool forceLoad = false)
{
switch (size)
{
case IconSize.Thumbnail:
case IconSize.ExtraLarge:
case IconSize.Large:
case IconSize.Jumbo:
var retImage = GetBitmap(size, ptr, isFolder, forceLoad);
return(ImageTools.ResizeImage(ImageTools.CheckImage(retImage) ? retImage : ImageTools.CutImage(retImage, new Size(48, 48)), IconSizeToSize(size), 0));
}
var shinfo = new NativeMethods.SHFILEINFO();
var flags = NativeMethods.SHGFI_SYSICONINDEX | NativeMethods.SHGFI_PIDL;
if (!isFolder)
{
flags |= NativeMethods.SHGFI_USEFILEATTRIBUTES;
}
if (size == IconSize.Small)
{
flags = flags | NativeMethods.SHGFI_ICON | NativeMethods.SHGFI_SMALLICON;
}
else
{
flags = flags | NativeMethods.SHGFI_ICON;
}
try
{
NativeMethods.SHGetFileInfo(ptr, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), flags);
}
catch
{
return(new Bitmap(1, 1));
}
if (shinfo.hIcon == IntPtr.Zero)
{
return(new Bitmap(1, 1));
}
var retVal = Icon.FromHandle(shinfo.hIcon).ToBitmap();
NativeMethods.DestroyIcon(shinfo.hIcon);
return(retVal);
}
protected static Bitmap GetGenericIcon(string fullPathOrExt, IconSize size, bool isFolder = false, bool forceLoad = false)
{
try
{
var fileName = fullPathOrExt.StartsWith(".") ? "AAA" + fullPathOrExt : fullPathOrExt;
switch (size)
{
case IconSize.Thumbnail:
case IconSize.ExtraLarge:
case IconSize.Jumbo:
Bitmap retImage = null;
try
{
retImage = GetBitmap(size, fileName, isFolder, forceLoad);
}
catch (Exception ex)
{
Debug.WriteLine("GetGenericIcon - " + ex.Message);
//TO-DO: Fix exception:
//GetGenericIcon Unable to cast COM object of type 'System.__ComObject' to interface type 'IImageList'.
//This operation failed because the QueryInterface call on the COM component for the interface with IID
//'{46EB5926-582E-4017-9FDF-E8998DAA0950}' failed due to the following error: No such interface supported
//(Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).
//FailSafe
if (size > IconSize.Large)
{
return(GetGenericIcon(fullPathOrExt, IconSize.Large, isFolder, forceLoad));
}
}
return(ImageTools.ResizeImage(ImageTools.CheckImage(retImage) ? retImage : ImageTools.CutImage(retImage, new Size(48, 48)), IconSizeToSize(size), 0));
}
var shinfo = new NativeMethods.SHFILEINFO();
var flags = NativeMethods.SHGFI_SYSICONINDEX;
if (!isFolder)
{
flags |= NativeMethods.SHGFI_USEFILEATTRIBUTES;
}
if (size == IconSize.Small)
{
flags = flags | NativeMethods.SHGFI_ICON | NativeMethods.SHGFI_SMALLICON;
}
else
{
flags = flags | NativeMethods.SHGFI_ICON;
}
try
{
NativeMethods.SHGetFileInfo(fileName, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), flags);
}
catch (Exception ex)
{
Debug.WriteLine("GetGenericIcon - " + ex.Message);
return(new Bitmap(1, 1));
}
if (shinfo.hIcon == IntPtr.Zero)
{
return(new Bitmap(1, 1));
}
var retVal = Icon.FromHandle(shinfo.hIcon).ToBitmap();
NativeMethods.DestroyIcon(shinfo.hIcon);
return(retVal);
}
catch (Exception ex)
{
Debug.WriteLine("GetGenericIcon - " + ex.Message);
return(new Bitmap(1, 1));
}
}
