Sweden-Number/dlls/user32/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
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#include "winuser.h"
#include "wine/server.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 = wine_server_user_handle( hwnd );
wine_server_set_reply( 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, LPSTR 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, LPWSTR 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 )
{
WCHAR buffer[ATOM_BUFFER_SIZE];
if (IS_INTRESOURCE(str)) return GetPropW( hwnd, (LPCWSTR)str );
if (!MultiByteToWideChar( CP_ACP, 0, str, -1, buffer, ATOM_BUFFER_SIZE )) return 0;
return GetPropW( hwnd, buffer );
}
/***********************************************************************
* GetPropW (USER32.@)
*/
HANDLE WINAPI GetPropW( HWND hwnd, LPCWSTR str )
{
ULONG_PTR ret = 0;
SERVER_START_REQ( get_window_property )
{
req->window = wine_server_user_handle( hwnd );
if (IS_INTRESOURCE(str)) req->atom = LOWORD(str);
else wine_server_add_data( req, str, lstrlenW(str) * sizeof(WCHAR) );
if (!wine_server_call_err( req )) ret = reply->data;
}
SERVER_END_REQ;
return (HANDLE)ret;
}
/***********************************************************************
* SetPropA (USER32.@)
*/
BOOL WINAPI SetPropA( HWND hwnd, LPCSTR str, HANDLE handle )
{
WCHAR buffer[ATOM_BUFFER_SIZE];
if (IS_INTRESOURCE(str)) return SetPropW( hwnd, (LPCWSTR)str, handle );
if (!MultiByteToWideChar( CP_ACP, 0, str, -1, buffer, ATOM_BUFFER_SIZE )) return FALSE;
return SetPropW( hwnd, buffer, handle );
}
/***********************************************************************
* SetPropW (USER32.@)
*/
BOOL WINAPI SetPropW( HWND hwnd, LPCWSTR str, HANDLE handle )
{
BOOL ret;
SERVER_START_REQ( set_window_property )
{
req->window = wine_server_user_handle( hwnd );
req->data = (ULONG_PTR)handle;
if (IS_INTRESOURCE(str)) req->atom = LOWORD(str);
else wine_server_add_data( req, str, lstrlenW(str) * sizeof(WCHAR) );
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* RemovePropA (USER32.@)
*/
HANDLE WINAPI RemovePropA( HWND hwnd, LPCSTR str )
{
WCHAR buffer[ATOM_BUFFER_SIZE];
if (IS_INTRESOURCE(str)) return RemovePropW( hwnd, (LPCWSTR)str );
if (!MultiByteToWideChar( CP_ACP, 0, str, -1, buffer, ATOM_BUFFER_SIZE )) return 0;
return RemovePropW( hwnd, buffer );
}
/***********************************************************************
* RemovePropW (USER32.@)
*/
HANDLE WINAPI RemovePropW( HWND hwnd, LPCWSTR str )
{
ULONG_PTR ret = 0;
SERVER_START_REQ( remove_window_property )
{
req->window = wine_server_user_handle( hwnd );
if (IS_INTRESOURCE(str)) req->atom = LOWORD(str);
else wine_server_add_data( req, str, lstrlenW(str) * sizeof(WCHAR) );
if (!wine_server_call_err( req )) ret = reply->data;
}
SERVER_END_REQ;
return (HANDLE)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, (HANDLE)(ULONG_PTR)list[i].data, 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, (HANDLE)(ULONG_PTR)list[i].data, lParam ))) break;
}
HeapFree( GetProcessHeap(), 0, list );
}
return ret;
}