shfileoperation delphi коды ошибок

Returns zero if successful; otherwise nonzero. Applications normally should simply check for zero or nonzero.
It is good practice to examine the value of the fAnyOperationsAborted member of the SHFILEOPSTRUCT. SHFileOperation can return 0 for success if the user cancels the operation. If you do not check fAnyOperationsAborted as well as the return value, you cannot know that the function accomplished the full task you asked of it and you might proceed under incorrect assumptions.

Do not use GetLastError with the return values of this function.

To examine the nonzero values for troubleshooting purposes, they largely map to those defined in Winerror.h. However, several of its possible return values are based on pre-Win32 error codes, which in some cases overlap the later Winerror.h values without matching their meaning. Those particular values are detailed here, and for these specific values only these meanings should be accepted over the Winerror.h codes. However, these values are provided with these warnings:

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SHFileOperationA function (shellapi.h)

Copies, moves, renames, or deletes a file system object. This function has been replaced in WindowsВ Vista by IFileOperation.

Syntax

Parameters

A pointer to an SHFILEOPSTRUCT structure that contains information this function needs to carry out the specified operation. This parameter must contain a valid value that is not NULL. You are responsible for validating the value. If you do not validate it, you will experience unexpected results.

Return value

Returns zero if successful; otherwise nonzero. Applications normally should simply check for zero or nonzero.

It is good practice to examine the value of the fAnyOperationsAborted member of the SHFILEOPSTRUCT. SHFileOperation can return 0 for success if the user cancels the operation. If you do not check fAnyOperationsAborted as well as the return value, you cannot know that the function accomplished the full task you asked of it and you might proceed under incorrect assumptions.

Do not use GetLastError with the return values of this function.

To examine the nonzero values for troubleshooting purposes, they largely map to those defined in Winerror.h. However, several of its possible return values are based on pre-Win32 error codes, which in some cases overlap the later Winerror.h values without matching their meaning. Those particular values are detailed here, and for these specific values only these meanings should be accepted over the Winerror.h codes. However, these values are provided with these warnings:

Remarks

You should use fully qualified path names with this function. Using it with relative path names is not thread safe.

With two exceptions, you cannot use SHFileOperation to move special folders from a local drive to a remote computer by specifying a network path. The exceptions are the My Documents (CSIDL_PERSONAL, CSIDL_DOCUMENTS) and My Pictures folders (CSIDL_MYPICTURES).

When used to delete a file, SHFileOperation permanently deletes the file unless you set the FOF_ALLOWUNDO flag in the fFlags member of the SHFILEOPSTRUCT structure pointed to by lpFileOp. Setting that flag sends the file to the Recycle Bin. If you want to simply delete a file and guarantee that it is not placed in the Recycle Bin, use DeleteFile.

If a copy callback handler is exposed and registered, SHFileOperation calls it unless you set a flag such as FOF_NOCONFIRMATION in the fFlags member of the structure pointed to by lpFileOp. See ICopyHook::CopyCallback for details on implementing copy callback handlers.

File deletion is recursive unless you set the FOF_NORECURSION flag in lpFileOp.

Connecting Files

File connection is enabled by default. It can be disabled by adding a REG_DWORD entry, NoFileFolderConnection, as shown here:

Setting NoFileFolderConnection to 1 disables file connection. If the value is set to zero or is missing, file connection is enabled.

To move only the specified files and none of the connected files, set the FOF_NO_CONNECTED_ELEMENTS flag in the fFlags member of the structure pointed to by lpFileOp.

Note that the use of a folder with a name like «MyFile_files» to define a connection may not be valid for localized versions of Windows. The term «files» may need to be replaced by the equivalent word in the local language.

The shellapi.h header defines SHFileOperation as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

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Shfileoperation delphi коды ошибок

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Пишу программу на С++ с использованием Qt, необходимо удалять файлы в корзину под windows.
Использую для этого SHFileOperation, код приведен ниже.
Часть файлов удаляется нормально, вторая часть отказывается удалятся возвращая код «2».
Сижу в windows 7 (может быть это играет роль. ).

В msdn смотрел, не не нашел там такой ошибки в описании SHFileOperation, поиск в google выдаёт много мусора.

Что значит код ошибки 2 у SHFileOperation?
Может быть ошибка в написанном мною коде, если так, то покажите где.

QString file_for_delete = str;
file_for_delete += «\0\0»;

SHFILEOPSTRUCT shfo=<0>;
shfo.wFunc=FO_DELETE;
shfo.pFrom = (wchar_t*)(file_for_delete.utf16());
shfo.fFlags =FOF_NOCONFIRMATION | FOF_SIMPLEPROGRESS | FOF_NOERRORUI | FOF_ALLOWUNDO;
shfo.fAnyOperationsAborted=false;
shfo.hNameMappings=NULL;
shfo.pTo = NULL;
shfo.lpszProgressTitle=NULL;
int res = SHFileOperation (&shfo);
qDebug()