qasm/ciderpress/util/Pidl.h
2019-11-13 15:45:39 -08:00

93 lines
2.7 KiB
C++

/*
* CiderPress
* Copyright (C) 2007 by faddenSoft, LLC. All Rights Reserved.
* See the file LICENSE for distribution terms.
*/
/*
* A collection of functions for manipulating Pointers to ID Lists (PIDLs).
*/
#ifndef UTIL_PIDL_H
#define UTIL_PIDL_H
/*
* All functions are static; the class is more about namespace protection than
* data encapsulation.
*/
class Pidl {
public:
/*
* Concatenates two PIDLs. The PIDL returned is newly-allocated storage.
*
* "pidl1" may be NULL.
*/
static LPITEMIDLIST ConcatPidls(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2);
/*
* Get a fully qualified PIDL for a ShellFolder.
*
* This is a rather roundabout way of doing things (converting to a full
* display name and then converting that to a PIDL). However, there doesn't
* seem to be a way to just ask a ShellFolder for its fully qualified PIDL.
* TODO: see if there's a better way now.
*
* Pass in the parent ShellFolder and the item's partial PIDL.
*/
static LPITEMIDLIST GetFullyQualPidl(LPSHELLFOLDER lpsf, LPITEMIDLIST lpi);
/*
* Make a copy of a PIDL.
*
* The PIDL returned is newly-allocated storage.
*/
static LPITEMIDLIST CopyITEMID(LPMALLOC lpMalloc, LPITEMIDLIST lpi);
/*
* Get the display name of a file in a ShellFolder.
*
* "lpsf" is the ShellFolder that contains the file, "lpi" is the PIDL for
* the file, "dwFlags" is passed to GetDisplayNameOf and affects which
* name is returned, and "lpFriendlyName" is a buffer of at least MAX_PATH
* bytes.
*/
static BOOL GetName(LPSHELLFOLDER lpsf, LPITEMIDLIST lpi, DWORD dwFlags,
CString* pFriendlyName);
/*
* Allocate a PIDL of the specified size.
*/
static LPITEMIDLIST CreatePidl(UINT cbSize);
/*
* Compute the size in bytes of a PIDL.
*/
static UINT GetSize(LPCITEMIDLIST pidl);
/*
* Return the next item in the PIDL.
*
* "pidl->mkid.cb" will be zero at the end of the list.
*/
static LPITEMIDLIST Next(LPCITEMIDLIST pidl);
/*
* Convert a PIDL to a filesystem path.
*
* Returns TRUE on success, FALSE on failure.
*/
static BOOL GetPath(LPCITEMIDLIST pidl, CString* pPath);
/*
* Get the index for an icon for a ShellFolder object.
*
* "lpi" is the fully-qualified PIDL for the object in question. "uFlags"
* specifies which of the object's icons to retrieve.
*/
static int GetItemIcon(LPITEMIDLIST lpi, UINT uFlags);
private:
Pidl(); // do not instantiate
~Pidl();
};
#endif /*UTIL_PIDL_H*/