324 lines
8.7 KiB
C
324 lines
8.7 KiB
C
/*
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* Window properties
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*
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* Copyright 1995, 1996, 2001 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <string.h>
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#include "windef.h"
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#include "wingdi.h"
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#include "wine/winuser16.h"
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#include "wine/server.h"
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#include "win.h"
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/* size of buffer needed to store an atom string */
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#define ATOM_BUFFER_SIZE 256
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/* ### start build ### */
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extern WORD CALLBACK PROP_CallTo16_word_wlw(PROPENUMPROC16,WORD,LONG,WORD);
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/* ### stop build ### */
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/***********************************************************************
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* get_properties
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*
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* Retrieve the list of properties of a given window.
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* Returned buffer must be freed by caller.
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*/
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static property_data_t *get_properties( HWND hwnd, int *count )
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{
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property_data_t *data;
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int total = 32;
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while (total)
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{
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int res = 0;
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if (!(data = HeapAlloc( GetProcessHeap(), 0, total * sizeof(*data) ))) break;
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*count = 0;
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SERVER_START_REQ( get_window_properties )
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{
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req->window = hwnd;
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wine_server_add_data( req, data, total * sizeof(*data) );
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if (!wine_server_call( req )) res = reply->total;
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}
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SERVER_END_REQ;
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if (res && res <= total)
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{
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*count = res;
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return data;
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}
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HeapFree( GetProcessHeap(), 0, data );
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total = res; /* restart with larger buffer */
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}
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return NULL;
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}
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/***********************************************************************
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* EnumPropsA_relay
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*
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* relay to call the EnumProps callback function from EnumPropsEx
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*/
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static BOOL CALLBACK EnumPropsA_relay( HWND hwnd, LPCSTR str, HANDLE handle, ULONG_PTR lparam )
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{
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PROPENUMPROCA func = (PROPENUMPROCA)lparam;
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return func( hwnd, str, handle );
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}
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/***********************************************************************
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* EnumPropsW_relay
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*
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* relay to call the EnumProps callback function from EnumPropsEx
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*/
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static BOOL CALLBACK EnumPropsW_relay( HWND hwnd, LPCWSTR str, HANDLE handle, ULONG_PTR lparam )
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{
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PROPENUMPROCW func = (PROPENUMPROCW)lparam;
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return func( hwnd, str, handle );
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}
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/***********************************************************************
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* EnumPropsA (USER32.@)
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*/
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INT WINAPI EnumPropsA( HWND hwnd, PROPENUMPROCA func )
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{
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return EnumPropsExA( hwnd, EnumPropsA_relay, (LPARAM)func );
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}
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/***********************************************************************
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* EnumPropsW (USER32.@)
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*/
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INT WINAPI EnumPropsW( HWND hwnd, PROPENUMPROCW func )
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{
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return EnumPropsExW( hwnd, EnumPropsW_relay, (LPARAM)func );
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}
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/***********************************************************************
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* GetPropA (USER32.@)
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*/
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HANDLE WINAPI GetPropA( HWND hwnd, LPCSTR str )
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{
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ATOM atom;
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HANDLE ret = 0;
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if (!HIWORD(str)) atom = LOWORD(str);
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else if (!(atom = GlobalFindAtomA( str ))) return 0;
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SERVER_START_REQ( get_window_property )
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{
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req->window = hwnd;
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req->atom = atom;
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if (!wine_server_call_err( req )) ret = reply->handle;
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}
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SERVER_END_REQ;
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return ret;
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}
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/***********************************************************************
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* GetPropW (USER32.@)
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*/
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HANDLE WINAPI GetPropW( HWND hwnd, LPCWSTR str )
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{
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ATOM atom;
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HANDLE ret = 0;
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if (!HIWORD(str)) atom = LOWORD(str);
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else if (!(atom = GlobalFindAtomW( str ))) return 0;
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SERVER_START_REQ( get_window_property )
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{
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req->window = hwnd;
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req->atom = atom;
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if (!wine_server_call_err( req )) ret = reply->handle;
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}
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SERVER_END_REQ;
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return ret;
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}
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/***********************************************************************
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* SetPropA (USER32.@)
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*/
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BOOL WINAPI SetPropA( HWND hwnd, LPCSTR str, HANDLE handle )
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{
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ATOM atom;
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BOOL ret;
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if (!HIWORD(str)) atom = LOWORD(str);
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else if (!(atom = GlobalAddAtomA( str ))) return FALSE;
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SERVER_START_REQ( set_window_property )
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{
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req->window = hwnd;
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req->atom = atom;
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req->string = (HIWORD(str) != 0);
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req->handle = handle;
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ret = !wine_server_call_err( req );
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}
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SERVER_END_REQ;
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if (HIWORD(str)) GlobalDeleteAtom( atom );
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return ret;
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}
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/***********************************************************************
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* SetPropW (USER32.@)
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*/
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BOOL WINAPI SetPropW( HWND hwnd, LPCWSTR str, HANDLE handle )
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{
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ATOM atom;
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BOOL ret;
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if (!HIWORD(str)) atom = LOWORD(str);
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else if (!(atom = GlobalAddAtomW( str ))) return FALSE;
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SERVER_START_REQ( set_window_property )
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{
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req->window = hwnd;
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req->atom = atom;
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req->string = (HIWORD(str) != 0);
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req->handle = handle;
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ret = !wine_server_call_err( req );
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}
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SERVER_END_REQ;
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if (HIWORD(str)) GlobalDeleteAtom( atom );
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return ret;
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}
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/***********************************************************************
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* RemovePropA (USER32.@)
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*/
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HANDLE WINAPI RemovePropA( HWND hwnd, LPCSTR str )
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{
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ATOM atom;
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HANDLE ret = 0;
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if (!HIWORD(str)) return RemovePropW( hwnd, MAKEINTATOMW(LOWORD(str)) );
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if ((atom = GlobalAddAtomA( str )))
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{
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ret = RemovePropW( hwnd, MAKEINTATOMW(atom) );
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GlobalDeleteAtom( atom );
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}
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return ret;
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}
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/***********************************************************************
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* RemovePropW (USER32.@)
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*/
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HANDLE WINAPI RemovePropW( HWND hwnd, LPCWSTR str )
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{
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ATOM atom;
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HANDLE ret = 0;
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if (!HIWORD(str)) atom = LOWORD(str);
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else if (!(atom = GlobalAddAtomW( str ))) return 0;
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SERVER_START_REQ( remove_window_property )
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{
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req->window = hwnd;
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req->atom = atom;
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if (!wine_server_call_err( req )) ret = reply->handle;
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}
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SERVER_END_REQ;
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if (HIWORD(str)) GlobalDeleteAtom( atom );
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return ret;
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}
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/***********************************************************************
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* EnumPropsExA (USER32.@)
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*/
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INT WINAPI EnumPropsExA(HWND hwnd, PROPENUMPROCEXA func, LPARAM lParam)
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{
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int ret = -1, i, count;
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property_data_t *list = get_properties( hwnd, &count );
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if (list)
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{
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for (i = 0; i < count; i++)
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{
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char string[ATOM_BUFFER_SIZE];
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if (!GlobalGetAtomNameA( list[i].atom, string, ATOM_BUFFER_SIZE )) continue;
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if (!(ret = func( hwnd, string, list[i].handle, lParam ))) break;
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}
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HeapFree( GetProcessHeap(), 0, list );
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}
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return ret;
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}
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/***********************************************************************
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* EnumPropsExW (USER32.@)
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*/
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INT WINAPI EnumPropsExW(HWND hwnd, PROPENUMPROCEXW func, LPARAM lParam)
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{
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int ret = -1, i, count;
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property_data_t *list = get_properties( hwnd, &count );
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if (list)
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{
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for (i = 0; i < count; i++)
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{
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WCHAR string[ATOM_BUFFER_SIZE];
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if (!GlobalGetAtomNameW( list[i].atom, string, ATOM_BUFFER_SIZE )) continue;
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if (!(ret = func( hwnd, string, list[i].handle, lParam ))) break;
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}
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HeapFree( GetProcessHeap(), 0, list );
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}
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return ret;
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}
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/***********************************************************************
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* EnumProps (USER.27)
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*/
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INT16 WINAPI EnumProps16( HWND16 hwnd, PROPENUMPROC16 func )
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{
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int ret = -1, i, count;
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property_data_t *list = get_properties( HWND_32(hwnd), &count );
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if (list)
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{
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char string[ATOM_BUFFER_SIZE];
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SEGPTR segptr = MapLS( string );
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for (i = 0; i < count; i++)
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{
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if (list[i].string) /* it was a string originally */
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{
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if (!GlobalGetAtomNameA( list[i].atom, string, ATOM_BUFFER_SIZE )) continue;
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ret = PROP_CallTo16_word_wlw( func, hwnd, segptr, list[i].handle );
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}
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else
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ret = PROP_CallTo16_word_wlw( func, hwnd, list[i].atom, list[i].handle );
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if (!ret) break;
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}
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UnMapLS( segptr );
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HeapFree( GetProcessHeap(), 0, list );
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}
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return ret;
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}
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