private static IntPtr GetIconHandleFromFilePath(string filepath, IconSizeEnum iconsize)
{
var shinfo = new Shell.SHFILEINFO();
const uint SHGFI_SYSICONINDEX = 0x4000;
const int FILE_ATTRIBUTE_NORMAL = 0x80;
uint flags = SHGFI_SYSICONINDEX;
return(getIconHandleFromFilePathWithFlags(filepath, iconsize, ref shinfo, FILE_ATTRIBUTE_NORMAL, flags));
}
private static IntPtr GetIconHandleFromFolderPath(string folderpath, IconSizeEnum iconsize)
{
var shinfo = new Shell.SHFILEINFO();
const uint SHGFI_ICON = 0x000000100;
const uint SHGFI_USEFILEATTRIBUTES = 0x000000010;
const int FILE_ATTRIBUTE_DIRECTORY = 0x00000010;
uint flags = SHGFI_ICON | SHGFI_USEFILEATTRIBUTES;
return(getIconHandleFromFilePathWithFlags(folderpath, iconsize, ref shinfo, FILE_ATTRIBUTE_DIRECTORY, flags));
}
private static IntPtr getIconHandleFromFilePathWithFlags(
string filepath, IconSizeEnum iconsize,
ref Shell.SHFILEINFO shinfo, int fileAttributeFlag, uint flags)
{
const int ILD_TRANSPARENT = 1;
var retval = SHGetFileInfo(filepath, fileAttributeFlag, ref shinfo, Marshal.SizeOf(shinfo), flags);
if (retval == 0)
{
throw (new System.IO.FileNotFoundException());
}
var iconIndex = shinfo.iIcon;
var iImageListGuid = new Guid("46EB5926-582E-4017-9FDF-E8998DAA0950");
Shell.IImageList iml;
var hres = SHGetImageList((int)iconsize, ref iImageListGuid, out iml);
var hIcon = IntPtr.Zero;
hres = iml.GetIcon(iconIndex, ILD_TRANSPARENT, ref hIcon);
return(hIcon);
}
public static extern int SHGetFileInfo(
string pszPath,
int dwFileAttributes,
ref Shell.SHFILEINFO psfi,
int cbFileInfo,
uint uFlags);