Sweden-Number/dlls/win32u/window.c

190 lines
6.0 KiB
C

/*
* Window related functions
*
* Copyright 1993, 1994 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
*/
#if 0
#pragma makedep unix
#endif
#include <pthread.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "win32u_private.h"
#include "wine/server.h"
static struct list window_surfaces = LIST_INIT( window_surfaces );
static pthread_mutex_t surfaces_lock = PTHREAD_MUTEX_INITIALIZER;
/*******************************************************************
* register_window_surface
*
* Register a window surface in the global list, possibly replacing another one.
*/
void register_window_surface( struct window_surface *old, struct window_surface *new )
{
if (old == new) return;
pthread_mutex_lock( &surfaces_lock );
if (old) list_remove( &old->entry );
if (new) list_add_tail( &window_surfaces, &new->entry );
pthread_mutex_unlock( &surfaces_lock );
}
/*******************************************************************
* flush_window_surfaces
*
* Flush pending output from all window surfaces.
*/
void flush_window_surfaces( BOOL idle )
{
static DWORD last_idle;
DWORD now;
struct window_surface *surface;
pthread_mutex_lock( &surfaces_lock );
now = NtGetTickCount();
if (idle) last_idle = now;
/* if not idle, we only flush if there's evidence that the app never goes idle */
else if ((int)(now - last_idle) < 50) goto done;
LIST_FOR_EACH_ENTRY( surface, &window_surfaces, struct window_surface, entry )
surface->funcs->flush( surface );
done:
pthread_mutex_unlock( &surfaces_lock );
}
/***********************************************************************
* NtUserGetProp (win32u.@)
*
* NOTE Native allows only ATOMs as the second argument. We allow strings
* to save extra server call in GetPropW.
*/
HANDLE WINAPI NtUserGetProp( HWND hwnd, const WCHAR *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;
}
/*****************************************************************************
* NtUserSetProp (win32u.@)
*
* NOTE Native allows only ATOMs as the second argument. We allow strings
* to save extra server call in SetPropW.
*/
BOOL WINAPI NtUserSetProp( HWND hwnd, const WCHAR *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;
}
/***********************************************************************
* NtUserRemoveProp (win32u.@)
*
* NOTE Native allows only ATOMs as the second argument. We allow strings
* to save extra server call in RemovePropW.
*/
HANDLE WINAPI NtUserRemoveProp( HWND hwnd, const WCHAR *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;
}
/*****************************************************************************
* NtUserGetLayeredWindowAttributes (win32u.@)
*/
BOOL WINAPI NtUserGetLayeredWindowAttributes( HWND hwnd, COLORREF *key, BYTE *alpha, DWORD *flags )
{
BOOL ret;
SERVER_START_REQ( get_window_layered_info )
{
req->handle = wine_server_user_handle( hwnd );
if ((ret = !wine_server_call_err( req )))
{
if (key) *key = reply->color_key;
if (alpha) *alpha = reply->alpha;
if (flags) *flags = reply->flags;
}
}
SERVER_END_REQ;
return ret;
}
/*****************************************************************************
* NtUserBuildHwndList (win32u.@)
*/
NTSTATUS WINAPI NtUserBuildHwndList( HDESK desktop, ULONG unk2, ULONG unk3, ULONG unk4,
ULONG thread_id, ULONG count, HWND *buffer, ULONG *size )
{
user_handle_t *list = (user_handle_t *)buffer;
int i;
NTSTATUS status;
SERVER_START_REQ( get_window_children )
{
req->desktop = wine_server_obj_handle( desktop );
req->tid = thread_id;
if (count) wine_server_set_reply( req, list, (count - 1) * sizeof(user_handle_t) );
status = wine_server_call( req );
if (status && status != STATUS_BUFFER_TOO_SMALL) return status;
*size = reply->count + 1;
}
SERVER_END_REQ;
if (*size > count) return STATUS_BUFFER_TOO_SMALL;
/* start from the end since HWND is potentially larger than user_handle_t */
for (i = *size - 2; i >= 0; i--)
buffer[i] = wine_server_ptr_handle( list[i] );
buffer[*size - 1] = HWND_BOTTOM;
return STATUS_SUCCESS;
}