ReactOS 0.4.15-dev-5666-gc548b97
fontpidl.cpp
Go to the documentation of this file.
1/*
2 * PROJECT: ReactOS Font Shell Extension
3 * LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
4 * PURPOSE: pidl handling
5 * COPYRIGHT: Copyright 2019,2020 Mark Jansen <mark.jansen@reactos.org>
6 */
7
8#include "precomp.h"
9
11{
12 // Because the FontPidlEntry contains one WCHAR, we do not need to take the null terminator into account
13 size_t cbData = sizeof(FontPidlEntry) + wcslen(lpString) * sizeof(WCHAR);
14 FontPidlEntry* pidl = (FontPidlEntry*)CoTaskMemAlloc(cbData + sizeof(WORD));
15 if (!pidl)
16 return NULL;
17
18 ZeroMemory(pidl, cbData + sizeof(WORD));
19
20 pidl->cb = (WORD)cbData;
21 pidl->Magic = 'fp';
22 pidl->Index = Index;
23
24 wcscpy(pidl->Name, lpString);
25 // Should be zero already, but make sure it is
26 *(WORD*)((char*)pidl + cbData) = 0;
27
28 return (LPITEMIDLIST)pidl;
29}
30
31
33{
34 const FontPidlEntry* fontEntry = (const FontPidlEntry*)pidl;
35 if (fontEntry->Magic == 'fp')
36 return fontEntry;
37 return NULL;
38}
#define NULL
Definition: types.h:112
unsigned short WORD
Definition: ntddk_ex.h:93
LPITEMIDLIST _ILCreate(LPCWSTR lpString, ULONG Index)
Definition: fontpidl.cpp:10
const FontPidlEntry * _FontFromIL(LPCITEMIDLIST pidl)
Definition: fontpidl.cpp:32
LPVOID WINAPI CoTaskMemAlloc(SIZE_T size)
Definition: ifs.c:426
_CRTIMP size_t __cdecl wcslen(_In_z_ const wchar_t *_Str)
unsigned int ULONG
Definition: retypes.h:1
_CRTIMP wchar_t *__cdecl wcscpy(_Out_writes_z_(_String_length_(_Source)+1) wchar_t *_Dest, _In_z_ const wchar_t *_Source)
ITEMIDLIST UNALIGNED * LPITEMIDLIST
Definition: shtypes.idl:41
const ITEMIDLIST UNALIGNED * LPCITEMIDLIST
Definition: shtypes.idl:42
WCHAR Name[1]
Definition: fontpidl.hpp:17
_In_ WDFCOLLECTION _In_ ULONG Index
#define ZeroMemory
Definition: winbase.h:1670
__wchar_t WCHAR
Definition: xmlstorage.h:180
const WCHAR * LPCWSTR
Definition: xmlstorage.h:185