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Sweden-Number/dlls/user/property.c

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/*
* Window properties
*
* Copyright 1995, 1996, 2001 Alexandre Julliard
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <string.h>
#include "windef.h"
#include "wingdi.h"
#include "wownt32.h"
#include "wine/winuser16.h"
#include "wine/server.h"
#include "win.h"
/* size of buffer needed to store an atom string */
#define ATOM_BUFFER_SIZE 256
/***********************************************************************
* get_properties
*
* Retrieve the list of properties of a given window.
* Returned buffer must be freed by caller.
*/
static property_data_t *get_properties( HWND hwnd, int *count )
{
property_data_t *data;
int total = 32;
while (total)
{
int res = 0;
if (!(data = HeapAlloc( GetProcessHeap(), 0, total * sizeof(*data) ))) break;
*count = 0;
SERVER_START_REQ( get_window_properties )
{
req->window = hwnd;
wine_server_add_data( req, data, total * sizeof(*data) );
if (!wine_server_call( req )) res = reply->total;
}
SERVER_END_REQ;
if (res && res <= total)
{
*count = res;
return data;
}
HeapFree( GetProcessHeap(), 0, data );
total = res; /* restart with larger buffer */
}
return NULL;
}
/***********************************************************************
* EnumPropsA_relay
*
* relay to call the EnumProps callback function from EnumPropsEx
*/
static BOOL CALLBACK EnumPropsA_relay( HWND hwnd, LPCSTR str, HANDLE handle, ULONG_PTR lparam )
{
PROPENUMPROCA func = (PROPENUMPROCA)lparam;
return func( hwnd, str, handle );
}
/***********************************************************************
* EnumPropsW_relay
*
* relay to call the EnumProps callback function from EnumPropsEx
*/
static BOOL CALLBACK EnumPropsW_relay( HWND hwnd, LPCWSTR str, HANDLE handle, ULONG_PTR lparam )
{
PROPENUMPROCW func = (PROPENUMPROCW)lparam;
return func( hwnd, str, handle );
}
/***********************************************************************
* EnumPropsA (USER32.@)
*/
INT WINAPI EnumPropsA( HWND hwnd, PROPENUMPROCA func )
{
return EnumPropsExA( hwnd, EnumPropsA_relay, (LPARAM)func );
}
/***********************************************************************
* EnumPropsW (USER32.@)
*/
INT WINAPI EnumPropsW( HWND hwnd, PROPENUMPROCW func )
{
return EnumPropsExW( hwnd, EnumPropsW_relay, (LPARAM)func );
}
/***********************************************************************
* GetPropA (USER32.@)
*/
HANDLE WINAPI GetPropA( HWND hwnd, LPCSTR str )
{
ATOM atom;
HANDLE ret = 0;
if (!HIWORD(str)) atom = LOWORD(str);
else if (!(atom = GlobalFindAtomA( str ))) return 0;
SERVER_START_REQ( get_window_property )
{
req->window = hwnd;
req->atom = atom;
if (!wine_server_call_err( req )) ret = reply->handle;
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* GetPropW (USER32.@)
*/
HANDLE WINAPI GetPropW( HWND hwnd, LPCWSTR str )
{
ATOM atom;
HANDLE ret = 0;
if (!HIWORD(str)) atom = LOWORD(str);
else if (!(atom = GlobalFindAtomW( str ))) return 0;
SERVER_START_REQ( get_window_property )
{
req->window = hwnd;
req->atom = atom;
if (!wine_server_call_err( req )) ret = reply->handle;
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* SetPropA (USER32.@)
*/
BOOL WINAPI SetPropA( HWND hwnd, LPCSTR str, HANDLE handle )
{
ATOM atom;
BOOL ret;
if (!HIWORD(str)) atom = LOWORD(str);
else if (!(atom = GlobalAddAtomA( str ))) return FALSE;
SERVER_START_REQ( set_window_property )
{
req->window = hwnd;
req->atom = atom;
req->string = (HIWORD(str) != 0);
req->handle = handle;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
if (HIWORD(str)) GlobalDeleteAtom( atom );
return ret;
}
/***********************************************************************
* SetPropW (USER32.@)
*/
BOOL WINAPI SetPropW( HWND hwnd, LPCWSTR str, HANDLE handle )
{
ATOM atom;
BOOL ret;
if (!HIWORD(str)) atom = LOWORD(str);
else if (!(atom = GlobalAddAtomW( str ))) return FALSE;
SERVER_START_REQ( set_window_property )
{
req->window = hwnd;
req->atom = atom;
req->string = (HIWORD(str) != 0);
req->handle = handle;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
if (HIWORD(str)) GlobalDeleteAtom( atom );
return ret;
}
/***********************************************************************
* RemovePropA (USER32.@)
*/
HANDLE WINAPI RemovePropA( HWND hwnd, LPCSTR str )
{
ATOM atom;
HANDLE ret = 0;
if (!HIWORD(str)) return RemovePropW( hwnd, MAKEINTATOMW(LOWORD(str)) );
if ((atom = GlobalAddAtomA( str )))
{
ret = RemovePropW( hwnd, MAKEINTATOMW(atom) );
GlobalDeleteAtom( atom );
}
return ret;
}
/***********************************************************************
* RemovePropW (USER32.@)
*/
HANDLE WINAPI RemovePropW( HWND hwnd, LPCWSTR str )
{
ATOM atom;
HANDLE ret = 0;
if (!HIWORD(str)) atom = LOWORD(str);
else if (!(atom = GlobalAddAtomW( str ))) return 0;
SERVER_START_REQ( remove_window_property )
{
req->window = hwnd;
req->atom = atom;
if (!wine_server_call_err( req )) ret = reply->handle;
}
SERVER_END_REQ;
if (HIWORD(str)) GlobalDeleteAtom( atom );
return ret;
}
/***********************************************************************
* EnumPropsExA (USER32.@)
*/
INT WINAPI EnumPropsExA(HWND hwnd, PROPENUMPROCEXA func, LPARAM lParam)
{
int ret = -1, i, count;
property_data_t *list = get_properties( hwnd, &count );
if (list)
{
for (i = 0; i < count; i++)
{
char string[ATOM_BUFFER_SIZE];
if (!GlobalGetAtomNameA( list[i].atom, string, ATOM_BUFFER_SIZE )) continue;
if (!(ret = func( hwnd, string, list[i].handle, lParam ))) break;
}
HeapFree( GetProcessHeap(), 0, list );
}
return ret;
}
/***********************************************************************
* EnumPropsExW (USER32.@)
*/
INT WINAPI EnumPropsExW(HWND hwnd, PROPENUMPROCEXW func, LPARAM lParam)
{
int ret = -1, i, count;
property_data_t *list = get_properties( hwnd, &count );
if (list)
{
for (i = 0; i < count; i++)
{
WCHAR string[ATOM_BUFFER_SIZE];
if (!GlobalGetAtomNameW( list[i].atom, string, ATOM_BUFFER_SIZE )) continue;
if (!(ret = func( hwnd, string, list[i].handle, lParam ))) break;
}
HeapFree( GetProcessHeap(), 0, list );
}
return ret;
}
/***********************************************************************
* EnumProps (USER.27)
*/
INT16 WINAPI EnumProps16( HWND16 hwnd, PROPENUMPROC16 func )
{
int ret = -1, i, count;
property_data_t *list = get_properties( HWND_32(hwnd), &count );
if (list)
{
char string[ATOM_BUFFER_SIZE];
SEGPTR segptr = MapLS( string );
WORD args[4];
DWORD result;
for (i = 0; i < count; i++)
{
if (list[i].string) /* it was a string originally */
{
if (!GlobalGetAtomNameA( list[i].atom, string, ATOM_BUFFER_SIZE )) continue;
args[3] = hwnd;
args[2] = SELECTOROF(segptr);
args[1] = OFFSETOF(segptr);
args[0] = LOWORD(list[i].handle);
}
else
{
args[3] = hwnd;
args[2] = 0;
args[1] = list[i].atom;
args[0] = LOWORD(list[i].handle);
}
WOWCallback16Ex( (DWORD)func, WCB16_PASCAL, sizeof(args), args, &result );
if (!(ret = LOWORD(result))) break;
}
UnMapLS( segptr );
HeapFree( GetProcessHeap(), 0, list );
}
return ret;
}
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