/// <summary>
/// Invokes SHFileOperation in managed code. Refer to https://dev.winodws.com or the Windows SDK for more information.
/// </summary>
/// <example>
/// ShellLib.ShellFileOperation fo = new ShellLib.ShellFileOperation();
/// string[] source = new string[nCount];
/// string[] dest = new string[nCount];
///
/// .. add full paths to source and dest ...
///
/// fo.Operation = ShellLib.ShellApi.FileOperations.FO_COPY;
/// fo.OwnerWindow = this.Handle;
/// fo.ProgressTitle = "Copying Checked Files";
/// fo.SourceFiles = source;
/// fo.DestFiles = dest;
///
/// bool RetVal = fo.DoOperation();
/// </example>
/// <returns>Indicates if the operation was successful.</returns>
public bool DoOperation()
{
ShellApi.SHFILEOPSTRUCT FileOpStruct = new ShellApi.SHFILEOPSTRUCT();
FileOpStruct.hwnd = OwnerWindow;
FileOpStruct.wFunc = (uint)Operation;
String multiSource = StringArrayToMultiString(SourceFiles);
String multiDest = StringArrayToMultiString(DestFiles);
FileOpStruct.pFrom = Marshal.StringToHGlobalUni(multiSource);
FileOpStruct.pTo = Marshal.StringToHGlobalUni(multiDest);
FileOpStruct.fFlags = (ushort)OperationFlags;
FileOpStruct.lpszProgressTitle = ProgressTitle;
FileOpStruct.fAnyOperationsAborted = 0;
FileOpStruct.hNameMappings = IntPtr.Zero;
int RetVal;
RetVal = ShellApi.SHFileOperation(ref FileOpStruct);
ShellApi.SHChangeNotify(
(uint)ShellApi.ShellChangeNotificationEvents.SHCNE_ALLEVENTS,
(uint)ShellApi.ShellChangeNotificationFlags.SHCNF_DWORD,
IntPtr.Zero,
IntPtr.Zero);
if (RetVal != 0)
return false;
if (FileOpStruct.fAnyOperationsAborted != 0)
return false;
return true;
}
private bool DeleteFile(FileItem file)
{
var sfo = new ShellApi.SHFILEOPSTRUCT()
{
wFunc = ShellApi.FileFuncFlags.FO_DELETE,
fFlags = ShellApi.FILEOP_FLAGS.FOF_ALLOWUNDO | ShellApi.FILEOP_FLAGS.FOF_NOCONFIRMATION,
pFrom = file.GetFullPath() + char.MinValue + char.MinValue
};
return(ShellApi.SHFileOperation(ref sfo) == 0);
}
private bool DeleteFiles(string[] filePaths)
{
var totalSize = filePaths.Sum(x => x.Length + 1) + 1;
var sb = new System.Text.StringBuilder(totalSize);
foreach (var filePath in filePaths)
{
sb.Append(filePath + '\0');
}
sb.Append('\0');
var sfo = new ShellApi.SHFILEOPSTRUCT()
{
wFunc = ShellApi.FileFuncFlags.FO_DELETE,
fFlags = ShellApi.FILEOP_FLAGS.FOF_ALLOWUNDO | ShellApi.FILEOP_FLAGS.FOF_NOCONFIRMATION,
pFrom = sb.ToString()
};
return(ShellApi.SHFileOperation(ref sfo) == 0);
}
public bool DoOperation()
{
ShellApi.SHFILEOPSTRUCT FileOpStruct = new ShellApi.SHFILEOPSTRUCT();
FileOpStruct.hwnd = OwnerWindow;
FileOpStruct.wFunc = (uint)Operation;
String multiSource = StringArrayToMultiString(SourceFiles);
String multiDest = StringArrayToMultiString(DestFiles);
FileOpStruct.pFrom = Marshal.StringToHGlobalUni(multiSource);
FileOpStruct.pTo = Marshal.StringToHGlobalUni(multiDest);
FileOpStruct.fFlags = (ushort)OperationFlags;
FileOpStruct.lpszProgressTitle = ProgressTitle;
FileOpStruct.fAnyOperationsAborted = 0;
FileOpStruct.hNameMappings = IntPtr.Zero;
this.NameMappings = new ShellNameMapping[0];
int RetVal;
RetVal = ShellApi.SHFileOperation(ref FileOpStruct);
ShellApi.SHChangeNotify(
(uint)ShellChangeNotificationEvents.SHCNE_ALLEVENTS,
(uint)ShellChangeNotificationFlags.SHCNF_DWORD,
IntPtr.Zero,
IntPtr.Zero);
if (RetVal != 0)
{
return(false);
}
if (FileOpStruct.fAnyOperationsAborted != 0)
{
return(false);
}
// Newly added on 2007/08/29 to make hNameMappings work
if (FileOpStruct.hNameMappings != IntPtr.Zero)
{
// Get MappingTable
ShellApi.SHNAMEMAPPINGINDEXSTRUCT mappingIndex = (ShellApi.SHNAMEMAPPINGINDEXSTRUCT)Marshal.PtrToStructure(
FileOpStruct.hNameMappings,
typeof(ShellApi.SHNAMEMAPPINGINDEXSTRUCT));
// Prepare array
this.NameMappings = new ShellNameMapping[mappingIndex.counter];
// Set pointer to first mapping struct
IntPtr mover = mappingIndex.firstMappingStruct;
for (int i = 0; i < mappingIndex.counter; i++)
{
ShellApi.SHNAMEMAPPINGSTRUCT oneNameMappingStruct =
(ShellApi.SHNAMEMAPPINGSTRUCT)Marshal.PtrToStructure(mover, typeof(ShellApi.SHNAMEMAPPINGSTRUCT));
this.NameMappings[i] = new ShellNameMapping(oneNameMappingStruct.pszOldPath, oneNameMappingStruct.pszNewPath);
// move pointer to the next mapping struct
mover = (IntPtr)((int)mover + Marshal.SizeOf(typeof(ShellApi.SHNAMEMAPPINGSTRUCT)));
}
// Free NameMappings in memory
ShellApi.SHFreeNameMappings(FileOpStruct.hNameMappings);
}
return(true);
}
public bool DoOperation()
{
ShellApi.SHFILEOPSTRUCT FileOpStruct = new ShellApi.SHFILEOPSTRUCT();
FileOpStruct.hwnd = OwnerWindow;
FileOpStruct.wFunc = (uint)Operation;
String multiSource = StringArrayToMultiString(SourceFiles);
String multiDest = StringArrayToMultiString(DestFiles);
FileOpStruct.pFrom = Marshal.StringToHGlobalUni(multiSource);
FileOpStruct.pTo = Marshal.StringToHGlobalUni(multiDest);
FileOpStruct.fFlags = (ushort)OperationFlags;
FileOpStruct.lpszProgressTitle = ProgressTitle;
FileOpStruct.fAnyOperationsAborted = 0;
FileOpStruct.hNameMappings = IntPtr.Zero;
this.NameMappings = new ShellNameMapping[0];
int RetVal;
RetVal = ShellApi.SHFileOperation(ref FileOpStruct);
ShellApi.SHChangeNotify(
(uint)ShellChangeNotificationEvents.SHCNE_ALLEVENTS,
(uint)ShellChangeNotificationFlags.SHCNF_DWORD,
IntPtr.Zero,
IntPtr.Zero);
if (RetVal != 0)
return false;
if (FileOpStruct.fAnyOperationsAborted != 0)
return false;
// Newly added on 2007/08/29 to make hNameMappings work
if (FileOpStruct.hNameMappings != IntPtr.Zero)
{
// Get MappingTable
ShellApi.SHNAMEMAPPINGINDEXSTRUCT mappingIndex = (ShellApi.SHNAMEMAPPINGINDEXSTRUCT)Marshal.PtrToStructure(
FileOpStruct.hNameMappings,
typeof(ShellApi.SHNAMEMAPPINGINDEXSTRUCT));
// Prepare array
this.NameMappings = new ShellNameMapping[mappingIndex.counter];
// Set pointer to first mapping struct
IntPtr mover = mappingIndex.firstMappingStruct;
for (int i = 0; i < mappingIndex.counter; i++)
{
ShellApi.SHNAMEMAPPINGSTRUCT oneNameMappingStruct =
(ShellApi.SHNAMEMAPPINGSTRUCT)Marshal.PtrToStructure(mover, typeof(ShellApi.SHNAMEMAPPINGSTRUCT));
this.NameMappings[i] = new ShellNameMapping(oneNameMappingStruct.pszOldPath, oneNameMappingStruct.pszNewPath);
// move pointer to the next mapping struct
mover = (IntPtr)((int)mover + Marshal.SizeOf(typeof(ShellApi.SHNAMEMAPPINGSTRUCT)));
}
// Free NameMappings in memory
ShellApi.SHFreeNameMappings(FileOpStruct.hNameMappings);
}
return true;
}
public CopyFileResult DoOperation(ref String errorMessage)
{
errorMessage = "";
ShellApi.SHFILEOPSTRUCT FileOpStruct = new ShellApi.SHFILEOPSTRUCT();
FileOpStruct.hwnd = OwnerWindow;
FileOpStruct.wFunc = (uint)Operation;
String multiSource = StringArrayToMultiString(SourceFiles);
String multiDest = StringArrayToMultiString(DestFiles);
FileOpStruct.pFrom = Marshal.StringToHGlobalUni(multiSource);
FileOpStruct.pTo = Marshal.StringToHGlobalUni(multiDest);
FileOpStruct.fFlags = (ushort)OperationFlags;
FileOpStruct.lpszProgressTitle = ProgressTitle;
FileOpStruct.fAnyOperationsAborted = 0;
FileOpStruct.hNameMappings = IntPtr.Zero;
RetVal = ShellApi.SHFileOperation(ref FileOpStruct);
ShellApi.SHChangeNotify(
(uint)ShellChangeNotificationEvents.SHCNE_ALLEVENTS,
(uint)ShellChangeNotificationFlags.SHCNF_DWORD,
IntPtr.Zero,
IntPtr.Zero);
if (FileOpStruct.fAnyOperationsAborted != 0)
return CopyFileResult.Aborted;
// If RetVal is 0, we are then sure that the operation succeeded.
if (RetVal == 0)
return CopyFileResult.Completed;
// In this case, the operation failed. We need to report why.
// From http://msdn.microsoft.com/en-us/library/bb762164(VS.85).aspx,
// we cannot map some of the return values of ShFileOperation() to Win32 error
// strings, let's use a custom dictionnary to perform the appropriate mapping.
if (ShFileOpErrorMap.ContainsKey(RetVal)) errorMessage = ShFileOpErrorMap[RetVal];
else errorMessage = "Unknown error message: " + RetVal;
return CopyFileResult.Failed;
}