Exemplo n.º 1
0
/*
 * @implemented
 */
HWND WINAPI
GetShellWindow(VOID)
{
   PDESKTOPINFO pdi;
   pdi = GetThreadDesktopInfo();
   if (pdi) return pdi->hShellWindow;
   return NULL;
}
Exemplo n.º 2
0
LRESULT WINAPI
User32DefWindowProc(HWND hWnd,
		    UINT Msg,
		    WPARAM wParam,
		    LPARAM lParam,
		    BOOL bUnicode)
{
    PWND pWnd = NULL;
    if (hWnd)
    {
       pWnd = ValidateHwnd(hWnd);
       if (!pWnd) return 0;
    }

    switch (Msg)
    {
	case WM_NCPAINT:
	{
            return DefWndNCPaint(hWnd, (HRGN)wParam, -1);
        }

        case WM_NCCALCSIZE:
        {
            return DefWndNCCalcSize(hWnd, (BOOL)wParam, (RECT*)lParam);
        }

        case WM_POPUPSYSTEMMENU:
        {
            /* This is an undocumented message used by the windows taskbar to
               display the system menu of windows that belong to other processes. */
            HMENU menu = GetSystemMenu(hWnd, FALSE);

            if (menu)
                TrackPopupMenu(menu, TPM_LEFTBUTTON|TPM_RIGHTBUTTON,
                               LOWORD(lParam), HIWORD(lParam), 0, hWnd, NULL);
            return 0;
        }

        case WM_NCACTIVATE:
        {
            return DefWndNCActivate(hWnd, wParam, lParam);
        }

        case WM_NCHITTEST:
        {
            POINT Point;
            Point.x = GET_X_LPARAM(lParam);
            Point.y = GET_Y_LPARAM(lParam);
            return (DefWndNCHitTest(hWnd, Point));
        }

        case WM_LBUTTONDOWN:
        case WM_RBUTTONDOWN:
        case WM_MBUTTONDOWN:
            iF10Key = iMenuSysKey = 0;
            break;

        case WM_NCLBUTTONDOWN:
        {
            return (DefWndNCLButtonDown(hWnd, wParam, lParam));
        }

        case WM_LBUTTONDBLCLK:
            return (DefWndNCLButtonDblClk(hWnd, HTCLIENT, lParam));

        case WM_NCLBUTTONDBLCLK:
        {
            return (DefWndNCLButtonDblClk(hWnd, wParam, lParam));
        }

        case WM_NCRBUTTONDOWN:
            return NC_HandleNCRButtonDown( hWnd, wParam, lParam );

        case WM_RBUTTONUP:
        {
            POINT Pt;

            Pt.x = GET_X_LPARAM(lParam);
            Pt.y = GET_Y_LPARAM(lParam);
            ClientToScreen(hWnd, &Pt);
            lParam = MAKELPARAM(Pt.x, Pt.y);
            if (bUnicode)
            {
                SendMessageW(hWnd, WM_CONTEXTMENU, (WPARAM)hWnd, lParam);
            }
            else
            {
                SendMessageA(hWnd, WM_CONTEXTMENU, (WPARAM)hWnd, lParam);
            }
            break;
        }

        case WM_NCRBUTTONUP:
          /*
           * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
           * in Windows), but what _should_ we do? According to MSDN :
           * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
           * message to the window". When is it appropriate?
           */
            break;

        case WM_CONTEXTMENU:
        {
            if (GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CHILD)
            {
                if (bUnicode)
                {
                    SendMessageW(GetParent(hWnd), Msg, wParam, lParam);
                }
                else
                {
                    SendMessageA(GetParent(hWnd), WM_CONTEXTMENU, wParam, lParam);
                }
            }
            else
            {
                POINT Pt;
                LONG_PTR Style;
                LONG HitCode;

                Style = GetWindowLongPtrW(hWnd, GWL_STYLE);

                Pt.x = GET_X_LPARAM(lParam);
                Pt.y = GET_Y_LPARAM(lParam);
                if (Style & WS_CHILD)
                {
                    ScreenToClient(GetParent(hWnd), &Pt);
                }

                HitCode = DefWndNCHitTest(hWnd, Pt);

                if (HitCode == HTCAPTION || HitCode == HTSYSMENU)
                {
                    HMENU SystemMenu;
                    UINT Flags;

                    if((SystemMenu = GetSystemMenu(hWnd, FALSE)))
                    {
                      MenuInitSysMenuPopup(SystemMenu, GetWindowLongPtrW(hWnd, GWL_STYLE),
                                           GetClassLongPtrW(hWnd, GCL_STYLE), HitCode);

                      if(HitCode == HTCAPTION)
                        Flags = TPM_LEFTBUTTON | TPM_RIGHTBUTTON;
                      else
                        Flags = TPM_LEFTBUTTON;

                      TrackPopupMenu(SystemMenu, Flags,
                                     Pt.x, Pt.y, 0, hWnd, NULL);
                    }
                }
	    }
            break;
        }

        case WM_PRINT:
        {
            DefWndPrint(hWnd, (HDC)wParam, lParam);
            return (0);
        }

        case WM_SYSCOLORCHANGE:
        {
            /* force to redraw non-client area */
            DefWndNCPaint(hWnd, HRGN_WINDOW, -1);
            /* Use InvalidateRect to redraw client area, enable
             * erase to redraw all subcontrols otherwise send the
             * WM_SYSCOLORCHANGE to child windows/controls is required
             */
            InvalidateRect(hWnd,NULL,TRUE);
            return (0);
        }

        case WM_PAINTICON:
        case WM_PAINT:
        {
            PAINTSTRUCT Ps;
            HDC hDC;

            /* If already in Paint and Client area is not empty just return. */
            if (pWnd->state2 & WNDS2_STARTPAINT && !IsRectEmpty(&pWnd->rcClient))
            {
               ERR("In Paint and Client area is not empty!\n");
               return 0;
            }

            hDC = BeginPaint(hWnd, &Ps);
            if (hDC)
            {
                HICON hIcon;

                if (IsIconic(hWnd) && ((hIcon = (HICON)GetClassLongPtrW( hWnd, GCLP_HICON))))
                {
                    RECT ClientRect;
                    INT x, y;
                    GetClientRect(hWnd, &ClientRect);
                    x = (ClientRect.right - ClientRect.left -
                         GetSystemMetrics(SM_CXICON)) / 2;
                    y = (ClientRect.bottom - ClientRect.top -
                         GetSystemMetrics(SM_CYICON)) / 2;
                    DrawIcon(hDC, x, y, hIcon);
                }
                EndPaint(hWnd, &Ps);
            }
            return (0);
        }

        case WM_CLOSE:
            DestroyWindow(hWnd);
            return (0);

        case WM_MOUSEACTIVATE:
            if (GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CHILD)
            {
                LONG Ret = SendMessageW(GetParent(hWnd), WM_MOUSEACTIVATE, wParam, lParam);
                if (Ret) return (Ret);
            }
            return ( (HIWORD(lParam) == WM_LBUTTONDOWN && LOWORD(lParam) == HTCAPTION) ? MA_NOACTIVATE : MA_ACTIVATE );

        case WM_ACTIVATE:
            /* The default action in Windows is to set the keyboard focus to
             * the window, if it's being activated and not minimized */
            if (LOWORD(wParam) != WA_INACTIVE &&
                !(GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_MINIMIZE))
            {
                //ERR("WM_ACTIVATE %p\n",hWnd);
                SetFocus(hWnd);
            }
            break;

        case WM_MOUSEWHEEL:
            if (GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CHILD)
                return SendMessageW( GetParent(hWnd), WM_MOUSEWHEEL, wParam, lParam);
            break;

        case WM_ERASEBKGND:
        case WM_ICONERASEBKGND:
        {
            RECT Rect;
            HBRUSH hBrush = (HBRUSH)GetClassLongPtrW(hWnd, GCL_HBRBACKGROUND);

            if (NULL == hBrush)
            {
                return 0;
            }
            if (GetClassLongPtrW(hWnd, GCL_STYLE) & CS_PARENTDC)
            {
                /* can't use GetClipBox with a parent DC or we fill the whole parent */
                GetClientRect(hWnd, &Rect);
                DPtoLP((HDC)wParam, (LPPOINT)&Rect, 2);
            }
            else
            {
                GetClipBox((HDC)wParam, &Rect);
            }
            FillRect((HDC)wParam, &Rect, hBrush);
            return (1);
        }

        case WM_CTLCOLORMSGBOX:
        case WM_CTLCOLOREDIT:
        case WM_CTLCOLORLISTBOX:
        case WM_CTLCOLORBTN:
        case WM_CTLCOLORDLG:
        case WM_CTLCOLORSTATIC:
        case WM_CTLCOLORSCROLLBAR:
	    return (LRESULT) DefWndControlColor((HDC)wParam, Msg - WM_CTLCOLORMSGBOX);

        case WM_CTLCOLOR:
            return (LRESULT) DefWndControlColor((HDC)wParam, HIWORD(lParam));

        case WM_SETCURSOR:
        {
            LONG_PTR Style = GetWindowLongPtrW(hWnd, GWL_STYLE);

            if (Style & WS_CHILD)
            {
                /* with the exception of the border around a resizable wnd,
                 * give the parent first chance to set the cursor */
                if (LOWORD(lParam) < HTLEFT || LOWORD(lParam) > HTBOTTOMRIGHT)
                {
                    HWND parent = GetParent( hWnd );
                    if (bUnicode)
                    {
                       if (parent != GetDesktopWindow() &&
                           SendMessageW( parent, WM_SETCURSOR, wParam, lParam))
                          return TRUE;
                    }
                    else
                    {
                       if (parent != GetDesktopWindow() &&                    
                           SendMessageA( parent, WM_SETCURSOR, wParam, lParam))
                          return TRUE;
                    }
                }
            }
            return (DefWndHandleSetCursor(hWnd, wParam, lParam, Style));
        }

        case WM_SYSCOMMAND:
            return (DefWndHandleSysCommand(hWnd, wParam, lParam));

        case WM_KEYDOWN:
            if(wParam == VK_F10) iF10Key = VK_F10;
            break;

        case WM_SYSKEYDOWN:
        {
            if (HIWORD(lParam) & KF_ALTDOWN)
            {   /* Previous state, if the key was down before this message,
                   this is a cheap way to ignore autorepeat keys. */
                if ( !(HIWORD(lParam) & KF_REPEAT) )
                {
                   if ( ( wParam == VK_MENU  ||
                          wParam == VK_LMENU ||
                          wParam == VK_RMENU ) && !iMenuSysKey )
                       iMenuSysKey = 1;
                   else
                       iMenuSysKey = 0;
                }

                iF10Key = 0;

                if (wParam == VK_F4) /* Try to close the window */
                {
                   HWND top = GetAncestor(hWnd, GA_ROOT);
                   if (!(GetClassLongPtrW(top, GCL_STYLE) & CS_NOCLOSE))
                      PostMessageW(top, WM_SYSCOMMAND, SC_CLOSE, 0);
                }
                else if (wParam == VK_SNAPSHOT) // Alt-VK_SNAPSHOT?
                {
                   HWND hwnd = hWnd;
                   while (GetParent(hwnd) != NULL)
                   {
                       hwnd = GetParent(hwnd);
                   }
                   DefWndScreenshot(hwnd);
                }
                else if ( wParam == VK_ESCAPE || wParam == VK_TAB ) // Alt-Tab/ESC Alt-Shift-Tab/ESC
                {
                   WPARAM wParamTmp;
                   HWND Active = GetActiveWindow(); // Noticed MDI problem.
                   if (!Active)
                   {
                      FIXME("WM_SYSKEYDOWN VK_ESCAPE no active\n");
                      break;
                   }
                   wParamTmp = GetKeyState(VK_SHIFT) & 0x8000 ? SC_PREVWINDOW : SC_NEXTWINDOW;
                   SendMessageW( Active, WM_SYSCOMMAND, wParamTmp, wParam );
                }
            }
            else if( wParam == VK_F10 )
            {
                if (GetKeyState(VK_SHIFT) & 0x8000)
                    SendMessageW( hWnd, WM_CONTEXTMENU, (WPARAM)hWnd, MAKELPARAM(-1, -1) );
                iF10Key = 1;
            }
            break;
        }

        case WM_KEYUP:
        case WM_SYSKEYUP:
        {
           /* Press and release F10 or ALT */
            if (((wParam == VK_MENU || wParam == VK_LMENU || wParam == VK_RMENU)
                 && iMenuSysKey) || ((wParam == VK_F10) && iF10Key))
                SendMessageW( GetAncestor( hWnd, GA_ROOT ), WM_SYSCOMMAND, SC_KEYMENU, 0L );
            iMenuSysKey = iF10Key = 0;
            break;
        }

        case WM_SYSCHAR:
        {
            iMenuSysKey = 0;
            if (wParam == VK_RETURN && IsIconic(hWnd))
            {
                PostMessageW( hWnd, WM_SYSCOMMAND, SC_RESTORE, 0L );
                break;
            }
            if ((HIWORD(lParam) & KF_ALTDOWN) && wParam)
            {
                if (wParam == VK_TAB || wParam == VK_ESCAPE) break;
                if (wParam == VK_SPACE && (GetWindowLongPtrW( hWnd, GWL_STYLE ) & WS_CHILD))
                    SendMessageW( GetParent(hWnd), Msg, wParam, lParam );
                else
                    SendMessageW( hWnd, WM_SYSCOMMAND, SC_KEYMENU, wParam );
            }
            else /* check for Ctrl-Esc */
                if (wParam != VK_ESCAPE) MessageBeep(0);
            break;
        }

        case WM_CANCELMODE:
        {
            iMenuSysKey = 0;
            /* FIXME: Check for a desktop. */
            //if (!(GetWindowLongPtrW( hWnd, GWL_STYLE ) & WS_CHILD)) EndMenu();
            MENU_EndMenu( hWnd );
            if (GetCapture() == hWnd)
            {
                ReleaseCapture();
            }
            break;
        }

        case WM_VKEYTOITEM:
        case WM_CHARTOITEM:
            return (-1);
/*
        case WM_DROPOBJECT:
            return DRAG_FILE;
*/
        case WM_QUERYDROPOBJECT:
        {
            if (GetWindowLongPtrW(hWnd, GWL_EXSTYLE) & WS_EX_ACCEPTFILES)
            {
                return(1);
            }
            break;
        }

        case WM_QUERYDRAGICON:
        {
            UINT Len;
            HICON hIcon;

            hIcon = (HICON)GetClassLongPtrW(hWnd, GCL_HICON);
            if (hIcon)
            {
                return ((LRESULT)hIcon);
            }
            for (Len = 1; Len < 64; Len++)
            {
                if ((hIcon = LoadIconW(NULL, MAKEINTRESOURCEW(Len))) != NULL)
                {
                    return((LRESULT)hIcon);
                }
            }
            return ((LRESULT)LoadIconW(0, IDI_APPLICATION));
        }

        case WM_ISACTIVEICON:
        {
           BOOL isai;
           isai = (pWnd->state & WNDS_ACTIVEFRAME) != 0;
           return isai;
        }

        case WM_NOTIFYFORMAT:
        {
            if (lParam == NF_QUERY)
                return IsWindowUnicode(hWnd) ? NFR_UNICODE : NFR_ANSI;
            break;
        }

        case WM_SETICON:
        {
           return DefWndSetIcon(pWnd, wParam, lParam);
        }

        case WM_GETICON:
        {
           return DefWndGetIcon(pWnd, wParam, lParam);
        }

        case WM_HELP:
        {
            if (bUnicode)
            {
                SendMessageW(GetParent(hWnd), Msg, wParam, lParam);
            }
            else
            {
                SendMessageA(GetParent(hWnd), Msg, wParam, lParam);
            }
            break;
        }

        case WM_SYSTIMER:
        {
          THRDCARETINFO CaretInfo;
          switch(wParam)
          {
            case 0xffff: /* Caret timer */
              /* switch showing byte in win32k and get information about the caret */
              if(NtUserxSwitchCaretShowing(&CaretInfo) && (CaretInfo.hWnd == hWnd))
              {
                DrawCaret(hWnd, &CaretInfo);
              }
              break;
          }
          break;
        }

        case WM_QUERYOPEN:
        case WM_QUERYENDSESSION:
        {
            return (1);
        }

        case WM_INPUTLANGCHANGEREQUEST:
        {
            HKL NewHkl;

            if(wParam & INPUTLANGCHANGE_BACKWARD
               && wParam & INPUTLANGCHANGE_FORWARD)
            {
                return FALSE;
            }

            //FIXME: What to do with INPUTLANGCHANGE_SYSCHARSET ?

            if(wParam & INPUTLANGCHANGE_BACKWARD) NewHkl = (HKL) HKL_PREV;
            else if(wParam & INPUTLANGCHANGE_FORWARD) NewHkl = (HKL) HKL_NEXT;
            else NewHkl = (HKL) lParam;

            NtUserActivateKeyboardLayout(NewHkl, 0);

            return TRUE;
        }

        case WM_INPUTLANGCHANGE:
        {
            int count = 0;
            HWND *win_array = WIN_ListChildren( hWnd );

            if (!win_array)
                break;
            while (win_array[count])
                SendMessageW( win_array[count++], WM_INPUTLANGCHANGE, wParam, lParam);
            HeapFree(GetProcessHeap(),0,win_array);
            break;
        }

        case WM_QUERYUISTATE:
        {
            LRESULT Ret = 0;
            PWND Wnd = ValidateHwnd(hWnd);
            if (Wnd != NULL)
            {
                if (Wnd->HideFocus)
                    Ret |= UISF_HIDEFOCUS;
                if (Wnd->HideAccel)
                    Ret |= UISF_HIDEACCEL;
            }
            return Ret;
        }

        case WM_CHANGEUISTATE:
        {
            BOOL AlwaysShowCues = FALSE;
            WORD Action = LOWORD(wParam);
            WORD Flags = HIWORD(wParam);
            PWND Wnd;

            SystemParametersInfoW(SPI_GETKEYBOARDCUES, 0, &AlwaysShowCues, 0);
            if (AlwaysShowCues)
                break;

            Wnd= ValidateHwnd(hWnd);
            if (!Wnd || lParam != 0)
                break;

            if (Flags & ~(UISF_HIDEFOCUS | UISF_HIDEACCEL | UISF_ACTIVE))
                break;

            if (Flags & UISF_ACTIVE)
            {
                WARN("WM_CHANGEUISTATE does not yet support UISF_ACTIVE!\n");
            }

            if (Action == UIS_INITIALIZE)
            {
                PDESKTOPINFO Desk = GetThreadDesktopInfo();
                if (Desk == NULL)
                    break;

                Action = Desk->LastInputWasKbd ? UIS_CLEAR : UIS_SET;
                Flags = UISF_HIDEFOCUS | UISF_HIDEACCEL;

                /* We need to update wParam in case we need to send out messages */
                wParam = MAKEWPARAM(Action, Flags);
            }

            switch (Action)
            {
                case UIS_SET:
                    /* See if we actually need to change something */
                    if ((Flags & UISF_HIDEFOCUS) && !Wnd->HideFocus)
                        break;
                    if ((Flags & UISF_HIDEACCEL) && !Wnd->HideAccel)
                        break;

                    /* Don't need to do anything... */
                    return 0;

                case UIS_CLEAR:
                    /* See if we actually need to change something */
                    if ((Flags & UISF_HIDEFOCUS) && Wnd->HideFocus)
                        break;
                    if ((Flags & UISF_HIDEACCEL) && Wnd->HideAccel)
                        break;

                    /* Don't need to do anything... */
                    return 0;

                default:
                    WARN("WM_CHANGEUISTATE: Unsupported Action 0x%x\n", Action);
                    break;
            }

            if ((Wnd->style & WS_CHILD) && Wnd->spwndParent != NULL)
            {
                /* We're a child window and we need to pass this message down until
                   we reach the root */
                hWnd = UserHMGetHandle((PWND)DesktopPtrToUser(Wnd->spwndParent));
            }
            else
            {
                /* We're a top level window, we need to change the UI state */
                Msg = WM_UPDATEUISTATE;
            }

            if (bUnicode)
                return SendMessageW(hWnd, Msg, wParam, lParam);
            else
                return SendMessageA(hWnd, Msg, wParam, lParam);
        }

        case WM_UPDATEUISTATE:
        {
            BOOL Change = TRUE;
            BOOL AlwaysShowCues = FALSE;
            WORD Action = LOWORD(wParam);
            WORD Flags = HIWORD(wParam);
            PWND Wnd;

            SystemParametersInfoW(SPI_GETKEYBOARDCUES, 0, &AlwaysShowCues, 0);
            if (AlwaysShowCues)
                break;

            Wnd = ValidateHwnd(hWnd);
            if (!Wnd || lParam != 0)
                break;

            if (Flags & ~(UISF_HIDEFOCUS | UISF_HIDEACCEL | UISF_ACTIVE))
                break;

            if (Flags & UISF_ACTIVE)
            {
                WARN("WM_UPDATEUISTATE does not yet support UISF_ACTIVE!\n");
            }

            if (Action == UIS_INITIALIZE)
            {
                PDESKTOPINFO Desk = GetThreadDesktopInfo();
                if (Desk == NULL)
                    break;

                Action = Desk->LastInputWasKbd ? UIS_CLEAR : UIS_SET;
                Flags = UISF_HIDEFOCUS | UISF_HIDEACCEL;

                /* We need to update wParam for broadcasting the update */
                wParam = MAKEWPARAM(Action, Flags);
            }

            switch (Action)
            {
                case UIS_SET:
                    /* See if we actually need to change something */
                    if ((Flags & UISF_HIDEFOCUS) && !Wnd->HideFocus)
                        break;
                    if ((Flags & UISF_HIDEACCEL) && !Wnd->HideAccel)
                        break;

                    /* Don't need to do anything... */
                    Change = FALSE;
                    break;

                case UIS_CLEAR:
                    /* See if we actually need to change something */
                    if ((Flags & UISF_HIDEFOCUS) && Wnd->HideFocus)
                        break;
                    if ((Flags & UISF_HIDEACCEL) && Wnd->HideAccel)
                        break;

                    /* Don't need to do anything... */
                    Change = FALSE;
                    break;

                default:
                    WARN("WM_UPDATEUISTATE: Unsupported Action 0x%x\n", Action);
                    return 0;
            }

            /* Pack the information and call win32k */
            if (Change)
            {
                if (!NtUserxUpdateUiState(hWnd, Flags | ((DWORD)Action << 3)))
                    break;
            }

            /* Always broadcast the update to all children */
            EnumChildWindows(hWnd,
                             UserSendUiUpdateMsg,
                             (LPARAM)wParam);

            break;
        }

/* Move to Win32k !*/
        case WM_SHOWWINDOW:
            if (!lParam) break; // Call when it is necessary.
        case WM_SYNCPAINT:
        case WM_SETREDRAW:
        case WM_CLIENTSHUTDOWN:
        case WM_GETHOTKEY:
        case WM_SETHOTKEY:
        case WM_WINDOWPOSCHANGING:
        case WM_WINDOWPOSCHANGED:
        case WM_APPCOMMAND:
        {
            LRESULT lResult;
            NtUserMessageCall( hWnd, Msg, wParam, lParam, (ULONG_PTR)&lResult, FNID_DEFWINDOWPROC, !bUnicode);
            return lResult;
        }
    }
    return 0;
}