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wine/dlls/comctl32/comctl32undoc.c
Alexandre Julliard b7f2ccb6b4 comctl32: Use explicit prototypes for function pointers.
2009-09-09 13:13:08 +02:00

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/*
* Undocumented functions from COMCTL32.DLL
*
* Copyright 1998 Eric Kohl
* 1998 Juergen Schmied <j.schmied@metronet.de>
* 2000 Eric Kohl for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* NOTES
* All of these functions are UNDOCUMENTED!! And I mean UNDOCUMENTED!!!!
* Do NOT rely on names or contents of undocumented structures and types!!!
* These functions are used by EXPLORER.EXE, IEXPLORE.EXE and
* COMCTL32.DLL (internally).
*
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <limits.h>
#define COBJMACROS
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winnls.h"
#include "winreg.h"
#include "commctrl.h"
#include "objbase.h"
#include "winerror.h"
#include "wine/unicode.h"
#include "comctl32.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(commctrl);
static const WCHAR strMRUList[] = { 'M','R','U','L','i','s','t',0 };
/**************************************************************************
* Alloc [COMCTL32.71]
*
* Allocates memory block from the dll's private heap
*
* PARAMS
* dwSize [I] size of the allocated memory block
*
* RETURNS
* Success: pointer to allocated memory block
* Failure: NULL
*/
LPVOID WINAPI Alloc (DWORD dwSize)
{
return LocalAlloc( LMEM_ZEROINIT, dwSize );
}
/**************************************************************************
* ReAlloc [COMCTL32.72]
*
* Changes the size of an allocated memory block or allocates a memory
* block using the dll's private heap.
*
* PARAMS
* lpSrc [I] pointer to memory block which will be resized
* dwSize [I] new size of the memory block.
*
* RETURNS
* Success: pointer to the resized memory block
* Failure: NULL
*
* NOTES
* If lpSrc is a NULL-pointer, then ReAlloc allocates a memory
* block like Alloc.
*/
LPVOID WINAPI ReAlloc (LPVOID lpSrc, DWORD dwSize)
{
if (lpSrc)
return LocalReAlloc( lpSrc, dwSize, LMEM_ZEROINIT | LMEM_MOVEABLE );
else
return LocalAlloc( LMEM_ZEROINIT, dwSize);
}
/**************************************************************************
* Free [COMCTL32.73]
*
* Frees an allocated memory block from the dll's private heap.
*
* PARAMS
* lpMem [I] pointer to memory block which will be freed
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI Free (LPVOID lpMem)
{
return !LocalFree( lpMem );
}
/**************************************************************************
* GetSize [COMCTL32.74]
*
* Retrieves the size of the specified memory block from the dll's
* private heap.
*
* PARAMS
* lpMem [I] pointer to an allocated memory block
*
* RETURNS
* Success: size of the specified memory block
* Failure: 0
*/
DWORD WINAPI GetSize (LPVOID lpMem)
{
return LocalSize( lpMem );
}
/**************************************************************************
* MRU-Functions {COMCTL32}
*
* NOTES
* The MRU-Api is a set of functions to manipulate lists of M.R.U. (Most Recently
* Used) items. It is an undocumented Api that is used (at least) by the shell
* and explorer to implement their recent documents feature.
*
* Since these functions are undocumented, they are unsupported by MS and
* may change at any time.
*
* Internally, the list is implemented as a last in, last out list of items
* persisted into the system registry under a caller chosen key. Each list
* item is given a one character identifier in the Ascii range from 'a' to
* '}'. A list of the identifiers in order from newest to oldest is stored
* under the same key in a value named "MRUList".
*
* Items are re-ordered by changing the order of the values in the MRUList
* value. When a new item is added, it becomes the new value of the oldest
* identifier, and that identifier is moved to the front of the MRUList value.
*
* Wine stores MRU-lists in the same registry format as Windows, so when
* switching between the builtin and native comctl32.dll no problems or
* incompatibilities should occur.
*
* The following undocumented structure is used to create an MRU-list:
*|typedef INT (CALLBACK *MRUStringCmpFn)(LPCTSTR lhs, LPCTSTR rhs);
*|typedef INT (CALLBACK *MRUBinaryCmpFn)(LPCVOID lhs, LPCVOID rhs, DWORD length);
*|
*|typedef struct tagCREATEMRULIST
*|{
*| DWORD cbSize;
*| DWORD nMaxItems;
*| DWORD dwFlags;
*| HKEY hKey;
*| LPTSTR lpszSubKey;
*| PROC lpfnCompare;
*|} CREATEMRULIST, *LPCREATEMRULIST;
*
* MEMBERS
* cbSize [I] The size of the CREATEMRULIST structure. This must be set
* to sizeof(CREATEMRULIST) by the caller.
* nMaxItems [I] The maximum number of items allowed in the list. Because
* of the limited number of identifiers, this should be set to
* a value from 1 to 30 by the caller.
* dwFlags [I] If bit 0 is set, the list will be used to store binary
* data, otherwise it is assumed to store strings. If bit 1
* is set, every change made to the list will be reflected in
* the registry immediately, otherwise changes will only be
* written when the list is closed.
* hKey [I] The registry key that the list should be written under.
* This must be supplied by the caller.
* lpszSubKey [I] A caller supplied name of a subkey under hKey to write
* the list to. This may not be blank.
* lpfnCompare [I] A caller supplied comparison function, which may be either
* an MRUStringCmpFn if dwFlags does not have bit 0 set, or a
* MRUBinaryCmpFn otherwise.
*
* FUNCTIONS
* - Create an MRU-list with CreateMRUList() or CreateMRUListLazy().
* - Add items to an MRU-list with AddMRUString() or AddMRUData().
* - Remove items from an MRU-list with DelMRUString().
* - Find data in an MRU-list with FindMRUString() or FindMRUData().
* - Iterate through an MRU-list with EnumMRUList().
* - Free an MRU-list with FreeMRUList().
*/
typedef INT (CALLBACK *MRUStringCmpFnA)(LPCSTR lhs, LPCSTR rhs);
typedef INT (CALLBACK *MRUStringCmpFnW)(LPCWSTR lhs, LPCWSTR rhs);
typedef INT (CALLBACK *MRUBinaryCmpFn)(LPCVOID lhs, LPCVOID rhs, DWORD length);
typedef struct tagCREATEMRULISTA
{
DWORD cbSize;
DWORD nMaxItems;
DWORD dwFlags;
HKEY hKey;
LPSTR lpszSubKey;
union
{
MRUStringCmpFnA string_cmpfn;
MRUBinaryCmpFn binary_cmpfn;
} u;
} CREATEMRULISTA, *LPCREATEMRULISTA;
typedef struct tagCREATEMRULISTW
{
DWORD cbSize;
DWORD nMaxItems;
DWORD dwFlags;
HKEY hKey;
LPWSTR lpszSubKey;
union
{
MRUStringCmpFnW string_cmpfn;
MRUBinaryCmpFn binary_cmpfn;
} u;
} CREATEMRULISTW, *LPCREATEMRULISTW;
/* dwFlags */
#define MRUF_STRING_LIST 0 /* list will contain strings */
#define MRUF_BINARY_LIST 1 /* list will contain binary data */
#define MRUF_DELAYED_SAVE 2 /* only save list order to reg. is FreeMRUList */
/* If list is a string list lpfnCompare has the following prototype
* int CALLBACK MRUCompareString(LPCSTR s1, LPCSTR s2)
* for binary lists the prototype is
* int CALLBACK MRUCompareBinary(LPCVOID data1, LPCVOID data2, DWORD cbData)
* where cbData is the no. of bytes to compare.
* Need to check what return value means identical - 0?
*/
typedef struct tagWINEMRUITEM
{
DWORD size; /* size of data stored */
DWORD itemFlag; /* flags */
BYTE datastart;
} WINEMRUITEM, *LPWINEMRUITEM;
/* itemFlag */
#define WMRUIF_CHANGED 0x0001 /* this dataitem changed */
typedef struct tagWINEMRULIST
{
CREATEMRULISTW extview; /* original create information */
BOOL isUnicode; /* is compare fn Unicode */
DWORD wineFlags; /* internal flags */
DWORD cursize; /* current size of realMRU */
LPWSTR realMRU; /* pointer to string of index names */
LPWINEMRUITEM *array; /* array of pointers to data */
/* in 'a' to 'z' order */
} WINEMRULIST, *LPWINEMRULIST;
/* wineFlags */
#define WMRUF_CHANGED 0x0001 /* MRU list has changed */
/**************************************************************************
* MRU_SaveChanged (internal)
*
* Local MRU saving code
*/
static void MRU_SaveChanged ( LPWINEMRULIST mp )
{
UINT i, err;
HKEY newkey;
WCHAR realname[2];
LPWINEMRUITEM witem;
/* or should we do the following instead of RegOpenKeyEx:
*/
/* open the sub key */
if ((err = RegOpenKeyExW( mp->extview.hKey, mp->extview.lpszSubKey,
0, KEY_WRITE, &newkey))) {
/* not present - what to do ??? */
ERR("Could not open key, error=%d, attempting to create\n",
err);
if ((err = RegCreateKeyExW( mp->extview.hKey, mp->extview.lpszSubKey,
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_READ | KEY_WRITE,
0,
&newkey,
0))) {
ERR("failed to create key /%s/, err=%d\n",
debugstr_w(mp->extview.lpszSubKey), err);
return;
}
}
if (mp->wineFlags & WMRUF_CHANGED) {
mp->wineFlags &= ~WMRUF_CHANGED;
err = RegSetValueExW(newkey, strMRUList, 0, REG_SZ, (LPBYTE)mp->realMRU,
(strlenW(mp->realMRU) + 1)*sizeof(WCHAR));
if (err) {
ERR("error saving MRUList, err=%d\n", err);
}
TRACE("saving MRUList=/%s/\n", debugstr_w(mp->realMRU));
}
realname[1] = 0;
for(i=0; i<mp->cursize; i++) {
witem = mp->array[i];
if (witem->itemFlag & WMRUIF_CHANGED) {
witem->itemFlag &= ~WMRUIF_CHANGED;
realname[0] = 'a' + i;
err = RegSetValueExW(newkey, realname, 0,
(mp->extview.dwFlags & MRUF_BINARY_LIST) ?
REG_BINARY : REG_SZ,
&witem->datastart, witem->size);
if (err) {
ERR("error saving /%s/, err=%d\n", debugstr_w(realname), err);
}
TRACE("saving value for name /%s/ size=%d\n",
debugstr_w(realname), witem->size);
}
}
RegCloseKey( newkey );
}
/**************************************************************************
* FreeMRUList [COMCTL32.152]
*
* Frees a most-recently-used items list.
*
* PARAMS
* hMRUList [I] Handle to list.
*
* RETURNS
* Nothing.
*/
void WINAPI FreeMRUList (HANDLE hMRUList)
{
LPWINEMRULIST mp = hMRUList;
UINT i;
TRACE("(%p)\n", hMRUList);
if (!hMRUList)
return;
if (mp->wineFlags & WMRUF_CHANGED) {
/* need to open key and then save the info */
MRU_SaveChanged( mp );
}
for(i=0; i<mp->extview.nMaxItems; i++)
Free(mp->array[i]);
Free(mp->realMRU);
Free(mp->array);
Free(mp->extview.lpszSubKey);
Free(mp);
}
/**************************************************************************
* FindMRUData [COMCTL32.169]
*
* Searches binary list for item that matches lpData of length cbData.
* Returns position in list order 0 -> MRU and if lpRegNum != NULL then value
* corresponding to item's reg. name will be stored in it ('a' -> 0).
*
* PARAMS
* hList [I] list handle
* lpData [I] data to find
* cbData [I] length of data
* lpRegNum [O] position in registry (maybe NULL)
*
* RETURNS
* Position in list 0 -> MRU. -1 if item not found.
*/
INT WINAPI FindMRUData (HANDLE hList, LPCVOID lpData, DWORD cbData,
LPINT lpRegNum)
{
const WINEMRULIST *mp = hList;
INT ret;
UINT i;
LPSTR dataA = NULL;
if (!mp || !mp->extview.u.string_cmpfn)
return -1;
if(!(mp->extview.dwFlags & MRUF_BINARY_LIST) && !mp->isUnicode) {
DWORD len = WideCharToMultiByte(CP_ACP, 0, lpData, -1,
NULL, 0, NULL, NULL);
dataA = Alloc(len);
WideCharToMultiByte(CP_ACP, 0, lpData, -1, dataA, len, NULL, NULL);
}
for(i=0; i<mp->cursize; i++) {
if (mp->extview.dwFlags & MRUF_BINARY_LIST) {
if (!mp->extview.u.binary_cmpfn(lpData, &mp->array[i]->datastart, cbData))
break;
}
else {
if(mp->isUnicode) {
if (!mp->extview.u.string_cmpfn(lpData, (LPWSTR)&mp->array[i]->datastart))
break;
} else {
DWORD len = WideCharToMultiByte(CP_ACP, 0,
(LPWSTR)&mp->array[i]->datastart, -1,
NULL, 0, NULL, NULL);
LPSTR itemA = Alloc(len);
INT cmp;
WideCharToMultiByte(CP_ACP, 0, (LPWSTR)&mp->array[i]->datastart, -1,
itemA, len, NULL, NULL);
cmp = mp->extview.u.string_cmpfn((LPWSTR)dataA, (LPWSTR)itemA);
Free(itemA);
if(!cmp)
break;
}
}
}
Free(dataA);
if (i < mp->cursize)
ret = i;
else
ret = -1;
if (lpRegNum && (ret != -1))
*lpRegNum = 'a' + i;
TRACE("(%p, %p, %d, %p) returning %d\n",
hList, lpData, cbData, lpRegNum, ret);
return ret;
}
/**************************************************************************
* AddMRUData [COMCTL32.167]
*
* Add item to MRU binary list. If item already exists in list then it is
* simply moved up to the top of the list and not added again. If list is
* full then the least recently used item is removed to make room.
*
* PARAMS
* hList [I] Handle to list.
* lpData [I] ptr to data to add.
* cbData [I] no. of bytes of data.
*
* RETURNS
* No. corresponding to registry name where value is stored 'a' -> 0 etc.
* -1 on error.
*/
INT WINAPI AddMRUData (HANDLE hList, LPCVOID lpData, DWORD cbData)
{
LPWINEMRULIST mp = hList;
LPWINEMRUITEM witem;
INT i, replace;
if ((replace = FindMRUData (hList, lpData, cbData, NULL)) >= 0) {
/* Item exists, just move it to the front */
LPWSTR pos = strchrW(mp->realMRU, replace + 'a');
while (pos > mp->realMRU)
{
pos[0] = pos[-1];
pos--;
}
}
else {
/* either add a new entry or replace oldest */
if (mp->cursize < mp->extview.nMaxItems) {
/* Add in a new item */
replace = mp->cursize;
mp->cursize++;
}
else {
/* get the oldest entry and replace data */
replace = mp->realMRU[mp->cursize - 1] - 'a';
Free(mp->array[replace]);
}
/* Allocate space for new item and move in the data */
mp->array[replace] = witem = Alloc(cbData + sizeof(WINEMRUITEM));
witem->itemFlag |= WMRUIF_CHANGED;
witem->size = cbData;
memcpy( &witem->datastart, lpData, cbData);
/* now rotate MRU list */
for(i=mp->cursize-1; i>=1; i--)
mp->realMRU[i] = mp->realMRU[i-1];
}
/* The new item gets the front spot */
mp->wineFlags |= WMRUF_CHANGED;
mp->realMRU[0] = replace + 'a';
TRACE("(%p, %p, %d) adding data, /%c/ now most current\n",
hList, lpData, cbData, replace+'a');
if (!(mp->extview.dwFlags & MRUF_DELAYED_SAVE)) {
/* save changed stuff right now */
MRU_SaveChanged( mp );
}
return replace;
}
/**************************************************************************
* AddMRUStringW [COMCTL32.401]
*
* Add an item to an MRU string list.
*
* PARAMS
* hList [I] Handle to list.
* lpszString [I] The string to add.
*
* RETURNS
* Success: The number corresponding to the registry name where the string
* has been stored (0 maps to 'a', 1 to 'b' and so on).
* Failure: -1, if hList is NULL or memory allocation fails. If lpszString
* is invalid, the function returns 0, and GetLastError() returns
* ERROR_INVALID_PARAMETER. The last error value is set only in
* this case.
*
* NOTES
* -If lpszString exists in the list already, it is moved to the top of the
* MRU list (it is not duplicated).
* -If the list is full the least recently used list entry is replaced with
* lpszString.
* -If this function returns 0 you should check the last error value to
* ensure the call really succeeded.
*/
INT WINAPI AddMRUStringW(HANDLE hList, LPCWSTR lpszString)
{
TRACE("(%p,%s)\n", hList, debugstr_w(lpszString));
if (!hList)
return -1;
if (!lpszString || IsBadStringPtrW(lpszString, -1))
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
return AddMRUData(hList, lpszString,
(strlenW(lpszString) + 1) * sizeof(WCHAR));
}
/**************************************************************************
* AddMRUStringA [COMCTL32.153]
*
* See AddMRUStringW.
*/
INT WINAPI AddMRUStringA(HANDLE hList, LPCSTR lpszString)
{
DWORD len;
LPWSTR stringW;
INT ret;
TRACE("(%p,%s)\n", hList, debugstr_a(lpszString));
if (!hList)
return -1;
if (IsBadStringPtrA(lpszString, -1))
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
len = MultiByteToWideChar(CP_ACP, 0, lpszString, -1, NULL, 0) * sizeof(WCHAR);
stringW = Alloc(len);
if (!stringW)
return -1;
MultiByteToWideChar(CP_ACP, 0, lpszString, -1, stringW, len/sizeof(WCHAR));
ret = AddMRUData(hList, stringW, len);
Free(stringW);
return ret;
}
/**************************************************************************
* DelMRUString [COMCTL32.156]
*
* Removes item from either string or binary list (despite its name)
*
* PARAMS
* hList [I] list handle
* nItemPos [I] item position to remove 0 -> MRU
*
* RETURNS
* TRUE if successful, FALSE if nItemPos is out of range.
*/
BOOL WINAPI DelMRUString(HANDLE hList, INT nItemPos)
{
FIXME("(%p, %d): stub\n", hList, nItemPos);
return TRUE;
}
/**************************************************************************
* FindMRUStringW [COMCTL32.402]
*
* See FindMRUStringA.
*/
INT WINAPI FindMRUStringW (HANDLE hList, LPCWSTR lpszString, LPINT lpRegNum)
{
return FindMRUData(hList, lpszString,
(lstrlenW(lpszString) + 1) * sizeof(WCHAR), lpRegNum);
}
/**************************************************************************
* FindMRUStringA [COMCTL32.155]
*
* Searches string list for item that matches lpszString.
* Returns position in list order 0 -> MRU and if lpRegNum != NULL then value
* corresponding to item's reg. name will be stored in it ('a' -> 0).
*
* PARAMS
* hList [I] list handle
* lpszString [I] string to find
* lpRegNum [O] position in registry (maybe NULL)
*
* RETURNS
* Position in list 0 -> MRU. -1 if item not found.
*/
INT WINAPI FindMRUStringA (HANDLE hList, LPCSTR lpszString, LPINT lpRegNum)
{
DWORD len = MultiByteToWideChar(CP_ACP, 0, lpszString, -1, NULL, 0);
LPWSTR stringW = Alloc(len * sizeof(WCHAR));
INT ret;
MultiByteToWideChar(CP_ACP, 0, lpszString, -1, stringW, len);
ret = FindMRUData(hList, stringW, len * sizeof(WCHAR), lpRegNum);
Free(stringW);
return ret;
}
/*************************************************************************
* CreateMRUListLazy_common (internal)
*/
static HANDLE CreateMRUListLazy_common(LPWINEMRULIST mp)
{
UINT i, err;
HKEY newkey;
DWORD datasize, dwdisp;
WCHAR realname[2];
LPWINEMRUITEM witem;
DWORD type;
/* get space to save indices that will turn into names
* but in order of most to least recently used
*/
mp->realMRU = Alloc((mp->extview.nMaxItems + 2) * sizeof(WCHAR));
/* get space to save pointers to actual data in order of
* 'a' to 'z' (0 to n).
*/
mp->array = Alloc(mp->extview.nMaxItems * sizeof(LPVOID));
/* open the sub key */
if ((err = RegCreateKeyExW( mp->extview.hKey, mp->extview.lpszSubKey,
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_READ | KEY_WRITE,
0,
&newkey,
&dwdisp))) {
/* error - what to do ??? */
ERR("(%u %u %x %p %s %p): Could not open key, error=%d\n",
mp->extview.cbSize, mp->extview.nMaxItems, mp->extview.dwFlags,
mp->extview.hKey, debugstr_w(mp->extview.lpszSubKey),
mp->extview.u.string_cmpfn, err);
return 0;
}
/* get values from key 'MRUList' */
if (newkey) {
datasize = (mp->extview.nMaxItems + 1) * sizeof(WCHAR);
if((err=RegQueryValueExW( newkey, strMRUList, 0, &type,
(LPBYTE)mp->realMRU, &datasize))) {
/* not present - set size to 1 (will become 0 later) */
datasize = 1;
*mp->realMRU = 0;
}
else
datasize /= sizeof(WCHAR);
TRACE("MRU list = %s, datasize = %d\n", debugstr_w(mp->realMRU), datasize);
mp->cursize = datasize - 1;
/* datasize now has number of items in the MRUList */
/* get actual values for each entry */
realname[1] = 0;
for(i=0; i<mp->cursize; i++) {
realname[0] = 'a' + i;
if(RegQueryValueExW( newkey, realname, 0, &type, 0, &datasize)) {
/* not present - what to do ??? */
ERR("Key %s not found 1\n", debugstr_w(realname));
}
mp->array[i] = witem = Alloc(datasize + sizeof(WINEMRUITEM));
witem->size = datasize;
if(RegQueryValueExW( newkey, realname, 0, &type,
&witem->datastart, &datasize)) {
/* not present - what to do ??? */
ERR("Key %s not found 2\n", debugstr_w(realname));
}
}
RegCloseKey( newkey );
}
else
mp->cursize = 0;
TRACE("(%u %u %x %p %s %p): Current Size = %d\n",
mp->extview.cbSize, mp->extview.nMaxItems, mp->extview.dwFlags,
mp->extview.hKey, debugstr_w(mp->extview.lpszSubKey),
mp->extview.u.string_cmpfn, mp->cursize);
return mp;
}
/**************************************************************************
* CreateMRUListLazyW [COMCTL32.404]
*
* See CreateMRUListLazyA.
*/
HANDLE WINAPI CreateMRUListLazyW (const CREATEMRULISTW *lpcml, DWORD dwParam2,
DWORD dwParam3, DWORD dwParam4)
{
LPWINEMRULIST mp;
/* Native does not check for a NULL lpcml */
if (lpcml->cbSize != sizeof(CREATEMRULISTW) || !lpcml->hKey ||
IsBadStringPtrW(lpcml->lpszSubKey, -1))
return NULL;
mp = Alloc(sizeof(WINEMRULIST));
memcpy(&mp->extview, lpcml, sizeof(CREATEMRULISTW));
mp->extview.lpszSubKey = Alloc((strlenW(lpcml->lpszSubKey) + 1) * sizeof(WCHAR));
strcpyW(mp->extview.lpszSubKey, lpcml->lpszSubKey);
mp->isUnicode = TRUE;
return CreateMRUListLazy_common(mp);
}
/**************************************************************************
* CreateMRUListLazyA [COMCTL32.157]
*
* Creates a most-recently-used list.
*
* PARAMS
* lpcml [I] ptr to CREATEMRULIST structure.
* dwParam2 [I] Unknown
* dwParam3 [I] Unknown
* dwParam4 [I] Unknown
*
* RETURNS
* Handle to MRU list.
*/
HANDLE WINAPI CreateMRUListLazyA (const CREATEMRULISTA *lpcml, DWORD dwParam2,
DWORD dwParam3, DWORD dwParam4)
{
LPWINEMRULIST mp;
DWORD len;
/* Native does not check for a NULL lpcml */
if (lpcml->cbSize != sizeof(CREATEMRULISTA) || !lpcml->hKey ||
IsBadStringPtrA(lpcml->lpszSubKey, -1))
return 0;
mp = Alloc(sizeof(WINEMRULIST));
memcpy(&mp->extview, lpcml, sizeof(CREATEMRULISTW));
len = MultiByteToWideChar(CP_ACP, 0, lpcml->lpszSubKey, -1, NULL, 0);
mp->extview.lpszSubKey = Alloc(len * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, lpcml->lpszSubKey, -1,
mp->extview.lpszSubKey, len);
mp->isUnicode = FALSE;
return CreateMRUListLazy_common(mp);
}
/**************************************************************************
* CreateMRUListW [COMCTL32.400]
*
* See CreateMRUListA.
*/
HANDLE WINAPI CreateMRUListW (const CREATEMRULISTW *lpcml)
{
return CreateMRUListLazyW(lpcml, 0, 0, 0);
}
/**************************************************************************
* CreateMRUListA [COMCTL32.151]
*
* Creates a most-recently-used list.
*
* PARAMS
* lpcml [I] ptr to CREATEMRULIST structure.
*
* RETURNS
* Handle to MRU list.
*/
HANDLE WINAPI CreateMRUListA (const CREATEMRULISTA *lpcml)
{
return CreateMRUListLazyA (lpcml, 0, 0, 0);
}
/**************************************************************************
* EnumMRUListW [COMCTL32.403]
*
* Enumerate item in a most-recently-used list
*
* PARAMS
* hList [I] list handle
* nItemPos [I] item position to enumerate
* lpBuffer [O] buffer to receive item
* nBufferSize [I] size of buffer
*
* RETURNS
* For binary lists specifies how many bytes were copied to buffer, for
* string lists specifies full length of string. Enumerating past the end
* of list returns -1.
* If lpBuffer == NULL or nItemPos is -ve return value is no. of items in
* the list.
*/
INT WINAPI EnumMRUListW (HANDLE hList, INT nItemPos, LPVOID lpBuffer,
DWORD nBufferSize)
{
const WINEMRULIST *mp = hList;
const WINEMRUITEM *witem;
INT desired, datasize;
if (!mp) return -1;
if ((nItemPos < 0) || !lpBuffer) return mp->cursize;
if (nItemPos >= mp->cursize) return -1;
desired = mp->realMRU[nItemPos];
desired -= 'a';
TRACE("nItemPos=%d, desired=%d\n", nItemPos, desired);
witem = mp->array[desired];
datasize = min( witem->size, nBufferSize );
memcpy( lpBuffer, &witem->datastart, datasize);
TRACE("(%p, %d, %p, %d): returning len=%d\n",
hList, nItemPos, lpBuffer, nBufferSize, datasize);
return datasize;
}
/**************************************************************************
* EnumMRUListA [COMCTL32.154]
*
* See EnumMRUListW.
*/
INT WINAPI EnumMRUListA (HANDLE hList, INT nItemPos, LPVOID lpBuffer,
DWORD nBufferSize)
{
const WINEMRULIST *mp = hList;
LPWINEMRUITEM witem;
INT desired, datasize;
DWORD lenA;
if (!mp) return -1;
if ((nItemPos < 0) || !lpBuffer) return mp->cursize;
if (nItemPos >= mp->cursize) return -1;
desired = mp->realMRU[nItemPos];
desired -= 'a';
TRACE("nItemPos=%d, desired=%d\n", nItemPos, desired);
witem = mp->array[desired];
if(mp->extview.dwFlags & MRUF_BINARY_LIST) {
datasize = min( witem->size, nBufferSize );
memcpy( lpBuffer, &witem->datastart, datasize);
} else {
lenA = WideCharToMultiByte(CP_ACP, 0, (LPWSTR)&witem->datastart, -1,
NULL, 0, NULL, NULL);
datasize = min( witem->size, nBufferSize );
WideCharToMultiByte(CP_ACP, 0, (LPWSTR)&witem->datastart, -1,
lpBuffer, datasize, NULL, NULL);
}
TRACE("(%p, %d, %p, %d): returning len=%d\n",
hList, nItemPos, lpBuffer, nBufferSize, datasize);
return datasize;
}
/**************************************************************************
* Str_GetPtrWtoA [internal]
*
* Converts a unicode string into a multi byte string
*
* PARAMS
* lpSrc [I] Pointer to the unicode source string
* lpDest [O] Pointer to caller supplied storage for the multi byte string
* nMaxLen [I] Size, in bytes, of the destination buffer
*
* RETURNS
* Length, in bytes, of the converted string.
*/
INT Str_GetPtrWtoA (LPCWSTR lpSrc, LPSTR lpDest, INT nMaxLen)
{
INT len;
TRACE("(%s %p %d)\n", debugstr_w(lpSrc), lpDest, nMaxLen);
if (!lpDest && lpSrc)
return WideCharToMultiByte(CP_ACP, 0, lpSrc, -1, 0, 0, NULL, NULL);
if (nMaxLen == 0)
return 0;
if (lpSrc == NULL) {
lpDest[0] = '\0';
return 0;
}
len = WideCharToMultiByte(CP_ACP, 0, lpSrc, -1, 0, 0, NULL, NULL);
if (len >= nMaxLen)
len = nMaxLen - 1;
WideCharToMultiByte(CP_ACP, 0, lpSrc, -1, lpDest, len, NULL, NULL);
lpDest[len] = '\0';
return len;
}
/**************************************************************************
* Str_GetPtrAtoW [internal]
*
* Converts a multibyte string into a unicode string
*
* PARAMS
* lpSrc [I] Pointer to the multibyte source string
* lpDest [O] Pointer to caller supplied storage for the unicode string
* nMaxLen [I] Size, in characters, of the destination buffer
*
* RETURNS
* Length, in characters, of the converted string.
*/
INT Str_GetPtrAtoW (LPCSTR lpSrc, LPWSTR lpDest, INT nMaxLen)
{
INT len;
TRACE("(%s %p %d)\n", debugstr_a(lpSrc), lpDest, nMaxLen);
if (!lpDest && lpSrc)
return MultiByteToWideChar(CP_ACP, 0, lpSrc, -1, 0, 0);
if (nMaxLen == 0)
return 0;
if (lpSrc == NULL) {
lpDest[0] = '\0';
return 0;
}
len = MultiByteToWideChar(CP_ACP, 0, lpSrc, -1, 0, 0);
if (len >= nMaxLen)
len = nMaxLen - 1;
MultiByteToWideChar(CP_ACP, 0, lpSrc, -1, lpDest, len);
lpDest[len] = '\0';
return len;
}
/**************************************************************************
* Str_SetPtrAtoW [internal]
*
* Converts a multi byte string to a unicode string.
* If the pointer to the destination buffer is NULL a buffer is allocated.
* If the destination buffer is too small to keep the converted multi byte
* string the destination buffer is reallocated. If the source pointer is
* NULL, the destination buffer is freed.
*
* PARAMS
* lppDest [I/O] pointer to a pointer to the destination buffer
* lpSrc [I] pointer to a multi byte string
*
* RETURNS
* TRUE: conversion successful
* FALSE: error
*/
BOOL Str_SetPtrAtoW (LPWSTR *lppDest, LPCSTR lpSrc)
{
TRACE("(%p %s)\n", lppDest, lpSrc);
if (lpSrc) {
INT len = MultiByteToWideChar(CP_ACP,0,lpSrc,-1,NULL,0);
LPWSTR ptr = ReAlloc (*lppDest, len*sizeof(WCHAR));
if (!ptr)
return FALSE;
MultiByteToWideChar(CP_ACP,0,lpSrc,-1,ptr,len);
*lppDest = ptr;
}
else {
Free (*lppDest);
*lppDest = NULL;
}
return TRUE;
}
/**************************************************************************
* Str_SetPtrWtoA [internal]
*
* Converts a unicode string to a multi byte string.
* If the pointer to the destination buffer is NULL a buffer is allocated.
* If the destination buffer is too small to keep the converted wide
* string the destination buffer is reallocated. If the source pointer is
* NULL, the destination buffer is freed.
*
* PARAMS
* lppDest [I/O] pointer to a pointer to the destination buffer
* lpSrc [I] pointer to a wide string
*
* RETURNS
* TRUE: conversion successful
* FALSE: error
*/
BOOL Str_SetPtrWtoA (LPSTR *lppDest, LPCWSTR lpSrc)
{
TRACE("(%p %s)\n", lppDest, debugstr_w(lpSrc));
if (lpSrc) {
INT len = WideCharToMultiByte(CP_ACP,0,lpSrc,-1,NULL,0,NULL,FALSE);
LPSTR ptr = ReAlloc (*lppDest, len*sizeof(CHAR));
if (!ptr)
return FALSE;
WideCharToMultiByte(CP_ACP,0,lpSrc,-1,ptr,len,NULL,FALSE);
*lppDest = ptr;
}
else {
Free (*lppDest);
*lppDest = NULL;
}
return TRUE;
}
/**************************************************************************
* Notification functions
*/
typedef struct tagNOTIFYDATA
{
HWND hwndFrom;
HWND hwndTo;
DWORD dwParam3;
DWORD dwParam4;
DWORD dwParam5;
DWORD dwParam6;
} NOTIFYDATA, *LPNOTIFYDATA;
/**************************************************************************
* DoNotify [Internal]
*/
static LRESULT DoNotify (const NOTIFYDATA *lpNotify, UINT uCode, LPNMHDR lpHdr)
{
NMHDR nmhdr;
LPNMHDR lpNmh = NULL;
UINT idFrom = 0;
TRACE("(%p %p %d %p 0x%08x)\n",
lpNotify->hwndFrom, lpNotify->hwndTo, uCode, lpHdr,
lpNotify->dwParam5);
if (!lpNotify->hwndTo)
return 0;
if (lpNotify->hwndFrom == (HWND)-1) {
lpNmh = lpHdr;
idFrom = lpHdr->idFrom;
}
else {
if (lpNotify->hwndFrom)
idFrom = GetDlgCtrlID (lpNotify->hwndFrom);
lpNmh = (lpHdr) ? lpHdr : &nmhdr;
lpNmh->hwndFrom = lpNotify->hwndFrom;
lpNmh->idFrom = idFrom;
lpNmh->code = uCode;
}
return SendMessageW (lpNotify->hwndTo, WM_NOTIFY, idFrom, (LPARAM)lpNmh);
}
/**************************************************************************
* SendNotify [COMCTL32.341]
*
* Sends a WM_NOTIFY message to the specified window.
*
* PARAMS
* hwndTo [I] Window to receive the message
* hwndFrom [I] Window that the message is from (see notes)
* uCode [I] Notification code
* lpHdr [I] The NMHDR and any additional information to send or NULL
*
* RETURNS
* Success: return value from notification
* Failure: 0
*
* NOTES
* If hwndFrom is -1 then the identifier of the control sending the
* message is taken from the NMHDR structure.
* If hwndFrom is not -1 then lpHdr can be NULL.
*/
LRESULT WINAPI SendNotify (HWND hwndTo, HWND hwndFrom, UINT uCode, LPNMHDR lpHdr)
{
NOTIFYDATA notify;
TRACE("(%p %p %d %p)\n",
hwndTo, hwndFrom, uCode, lpHdr);
notify.hwndFrom = hwndFrom;
notify.hwndTo = hwndTo;
notify.dwParam5 = 0;
notify.dwParam6 = 0;
return DoNotify (&notify, uCode, lpHdr);
}
/**************************************************************************
* SendNotifyEx [COMCTL32.342]
*
* Sends a WM_NOTIFY message to the specified window.
*
* PARAMS
* hwndFrom [I] Window to receive the message
* hwndTo [I] Window that the message is from
* uCode [I] Notification code
* lpHdr [I] The NMHDR and any additional information to send or NULL
* dwParam5 [I] Unknown
*
* RETURNS
* Success: return value from notification
* Failure: 0
*
* NOTES
* If hwndFrom is -1 then the identifier of the control sending the
* message is taken from the NMHDR structure.
* If hwndFrom is not -1 then lpHdr can be NULL.
*/
LRESULT WINAPI SendNotifyEx (HWND hwndTo, HWND hwndFrom, UINT uCode,
LPNMHDR lpHdr, DWORD dwParam5)
{
NOTIFYDATA notify;
HWND hwndNotify;
TRACE("(%p %p %d %p 0x%08x)\n",
hwndFrom, hwndTo, uCode, lpHdr, dwParam5);
hwndNotify = hwndTo;
if (!hwndTo) {
if (IsWindow (hwndFrom)) {
hwndNotify = GetParent (hwndFrom);
if (!hwndNotify)
return 0;
}
}
notify.hwndFrom = hwndFrom;
notify.hwndTo = hwndNotify;
notify.dwParam5 = dwParam5;
notify.dwParam6 = 0;
return DoNotify (&notify, uCode, lpHdr);
}
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