/// <summary>
/// Get the icon index associated with a given filename
/// </summary>
/// <param name="filename">the filename of interest</param>
/// <param name="open">if true, the file is "open", most useful for folders</param>
/// <returns>the index into the image list for the icon associated with this file</returns>
public int GetIconIndex(ExtraSpecialFolder folder, bool open)
{
GetInfoFlags flags = GetInfoFlags.SHGFI_ICON | GetInfoFlags.SHGFI_SMALLICON | GetInfoFlags.SHGFI_PIDL;
if (open)
{
flags |= GetInfoFlags.SHGFI_OPENICON;
}
IntPtr ppidl;
if (SHGetFolderLocation(IntPtr.Zero, (int)folder, IntPtr.Zero, 0, out ppidl) != 0)
{
throw new Exception("SHGetFolderLocation failed");
}
SHFILEINFO info = new SHFILEINFO();
SHGetFileInfoPIDL(ppidl, 0, ref info, (uint)Marshal.SizeOf(info), (uint)flags);
int iIcon = MapIcon(info.hIcon, info.iIcon);
ILFree(ppidl);
DestroyIcon(info.hIcon);
return(iIcon);
}
public string GetDisplayName(FileSystemInfo filename)
{
GetInfoFlags flags = GetInfoFlags.SHGFI_DISPLAYNAME;
SHFILEINFO info = new SHFILEINFO();
if (SHGetFileInfo(filename.FullName, (uint)filename.Attributes, ref info, (uint)Marshal.SizeOf(info), (uint)flags) == IntPtr.Zero)
{
return(filename.Name);
}
return(info.szDisplayName);
}
public string GetDisplayName(ExtraSpecialFolder folder)
{
GetInfoFlags flags = GetInfoFlags.SHGFI_PIDL | GetInfoFlags.SHGFI_DISPLAYNAME;
SHFILEINFO info = new SHFILEINFO();
IntPtr ppidl;
if (SHGetFolderLocation(IntPtr.Zero, (int)folder, IntPtr.Zero, 0, out ppidl) != 0)
{
throw new Exception("SHGetFolderLocation failed");
}
if (SHGetFileInfoPIDL(ppidl, 0, ref info, (uint)Marshal.SizeOf(info), (uint)flags) == IntPtr.Zero)
{
ILFree(ppidl);
throw new Exception("SHGetFileInfo failed");
}
ILFree(ppidl);
return(info.szDisplayName);
}
/// <summary>
/// Get the icon index associated with a given filename
/// </summary>
/// <param name="filename">the filename of interest</param>
/// <param name="open">if true, the file is "open", most useful for folders</param>
/// <returns>the index into the image list for the icon associated with this file</returns>
public int GetIconIndex(FileSystemInfo filename, bool open)
{
int iIcon;
if (filename is FileInfo && m_extension_map.TryGetValue(filename.Extension.ToLower(), out iIcon))
{
return(iIcon);
}
GetInfoFlags flags = GetInfoFlags.SHGFI_ICON | GetInfoFlags.SHGFI_SMALLICON | GetInfoFlags.SHGFI_USEFILEATTRIBUTES;
if (open)
{
flags |= GetInfoFlags.SHGFI_OPENICON;
}
SHFILEINFO info = new SHFILEINFO();
SHGetFileInfo(filename.FullName, filename.Exists ? (uint)filename.Attributes : 0, ref info, (uint)Marshal.SizeOf(info), (uint)flags);
iIcon = MapIcon(info.hIcon, info.iIcon);
DestroyIcon(info.hIcon);
return(iIcon);
}
void RequiresGetInfo(GetInfoFlags flags)
{
lock (_getInfoLock)
{
flags &= ~_getInfoFlags; // Remove flags we already have.
if (flags == 0)
{
return;
}
if (!TryOpenToGetInfo(handle =>
{
if ((flags & GetInfoFlags.Manufacturer) != 0)
{
if (!TryGetDeviceString(handle, NativeMethods.HidD_GetManufacturerString, out _manufacturer))
{
return(false);
}
}
if ((flags & GetInfoFlags.ProductName) != 0)
{
if (!TryGetDeviceString(handle, NativeMethods.HidD_GetProductString, out _productName))
{
return(false);
}
}
if ((flags & GetInfoFlags.SerialNumber) != 0)
{
if (!TryGetDeviceString(handle, NativeMethods.HidD_GetSerialNumberString, out _serialNumber))
{
return(false);
}
}
if ((flags & GetInfoFlags.ReportInfo) != 0)
{
IntPtr preparsed;
if (!NativeMethods.HidD_GetPreparsedData(handle, out preparsed))
{
return(false);
}
try
{
NativeMethods.HIDP_CAPS caps;
int statusCaps = NativeMethods.HidP_GetCaps(preparsed, out caps);
if (statusCaps != NativeMethods.HIDP_STATUS_SUCCESS)
{
return(false);
}
_maxInput = caps.InputReportByteLength;
_maxOutput = caps.OutputReportByteLength;
_maxFeature = caps.FeatureReportByteLength;
try { _reportDescriptor = new ReportDescriptorReconstructor().Run(preparsed, caps); }
catch (NotImplementedException) { _reportDescriptor = null; }
catch { return(false); }
}
finally
{
NativeMethods.HidD_FreePreparsedData(preparsed);
}
}
return(true);
}))
{
throw DeviceException.CreateIOException(this, "Failed to get info.");
}
_getInfoFlags |= flags;
}
}
