/// <summary>
/// Gets the path of this this known folder.
/// </summary>
/// <param name="fileExists">
/// Returns false if the folder is virtual, or a boolean
/// value that indicates whether this known folder exists.
/// </param>
/// <param name="knownFolderNative">Native IKnownFolder reference</param>
/// <returns>
/// A <see cref="System.String"/> containing the path, or <see cref="string.Empty"/> if this known folder does not exist.
/// </returns>
private string GetPath(out bool fileExists, IKnownFolderNative knownFolderNative)
{
Debug.Assert(knownFolderNative != null);
string kfPath = string.Empty;
fileExists = true;
// Virtual folders do not have path.
if (knownFolderProperties.category == FolderCategory.Virtual)
{
fileExists = false;
return(kfPath);
}
try
{
kfPath = knownFolderNative.GetPath(0);
}
catch (System.IO.FileNotFoundException)
{
fileExists = false;
}
catch (System.IO.DirectoryNotFoundException)
{
fileExists = false;
}
return(kfPath);
}
/// <summary>
/// Gets the path of this this known folder or null if known folder is not
/// available or does not have a representation in the file system.
/// </summary>
/// <param name="fileExists">
/// Returns false if the folder is virtual, or a boolean
/// value that indicates whether this known folder exists.
/// </param>
/// <param name="knownFolderNative">Native IKnownFolder reference</param>
/// <returns>
/// A <see cref="System.String"/> containing the path, or <see cref="System.String.Empty"/>
/// if this known folder does not exist.
/// </returns>
public static string GetPath(out bool fileExists, IKnownFolderNative knownFolderNative)
{
string kfPath = null;
fileExists = true;
if (knownFolderNative == null)
{
fileExists = false;
return(null);
}
// Virtual folders do not have path.
if (knownFolderNative.GetCategory() == FolderCategory.Virtual)
{
fileExists = false;
return(kfPath);
}
IntPtr ptrPath = default(IntPtr);
try
{
knownFolderNative.GetPath(0, out ptrPath);
if (ptrPath != default(IntPtr))
{
kfPath = Marshal.PtrToStringUni(ptrPath);
}
}
catch (System.IO.FileNotFoundException)
{
fileExists = false;
}
catch (System.IO.DirectoryNotFoundException)
{
fileExists = false;
}
finally
{
if (ptrPath != default(IntPtr))
{
Marshal.FreeCoTaskMem(ptrPath);
}
}
return(kfPath);
}
/// <summary>
/// Gets the path of this this known folder.
/// </summary>
/// <param name="fileExists">
/// Returns false if the folder is virtual, or a boolean
/// value that indicates whether this known folder exists.
/// </param>
/// <param name="knownFolderNative">Native IKnownFolder reference</param>
/// <returns>
/// A <see cref="System.String"/> containing the path, or <see cref="System.String.Empty"/> if this known folder does not exist.
/// </returns>
private string GetPath(out bool fileExists, IKnownFolderNative knownFolderNative)
{
Debug.Assert(knownFolderNative != null);
string kfPath = String.Empty;
fileExists = true;
// Virtual folders do not have path.
if (knownFolderProperties.category == FolderCategory.Virtual)
{
fileExists = false;
return kfPath;
}
try
{
kfPath = knownFolderNative.GetPath(0);
}
catch (System.IO.FileNotFoundException)
{
fileExists = false;
}
catch (System.IO.DirectoryNotFoundException)
{
fileExists = false;
}
return kfPath;
}