include/wx/msw/window.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/window.h
   3 // Purpose:     wxWindowMSW class
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin on 13.05.99: complete refont of message handling,
   6 //              elimination of Default(), ...
   7 // Created:     01/02/97
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) Julian Smart
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_WINDOW_H_
  14 #define _WX_WINDOW_H_
  15
  16 #include "wx/settings.h"        // solely for wxSystemColour
  17
  18 // if this is set to 1, we use deferred window sizing to reduce flicker when
  19 // resizing complicated window hierarchies, but this can in theory result in
  20 // different behaviour than the old code so we keep the possibility to use it
  21 // by setting this to 0 (in the future this should be removed completely)
  22 #ifdef __WXWINCE__
  23     #define wxUSE_DEFERRED_SIZING 0
  24 #else
  25     #define wxUSE_DEFERRED_SIZING 1
  26 #endif
  27
  28 // ---------------------------------------------------------------------------
  29 // wxWindow declaration for MSW
  30 // ---------------------------------------------------------------------------
  31
  32 class WXDLLIMPEXP_CORE wxWindowMSW : public wxWindowBase
  33 {
  34     friend class wxSpinCtrl;
  35     friend class wxSlider;
  36     friend class wxRadioBox;
  37 #if defined __VISUALC__ && __VISUALC__ <= 1200
  38     friend class wxWindowMSW;
  39 #endif
  40 public:
  41     wxWindowMSW() { Init(); }
  42
  43     wxWindowMSW(wxWindow *parent,
  44                 wxWindowID id,
  45                 const wxPoint& pos = wxDefaultPosition,
  46                 const wxSize& size = wxDefaultSize,
  47                 long style = 0,
  48                 const wxString& name = wxPanelNameStr)
  49     {
  50         Init();
  51         Create(parent, id, pos, size, style, name);
  52     }
  53
  54     virtual ~wxWindowMSW();
  55
  56     bool Create(wxWindow *parent,
  57                 wxWindowID id,
  58                 const wxPoint& pos = wxDefaultPosition,
  59                 const wxSize& size = wxDefaultSize,
  60                 long style = 0,
  61                 const wxString& name = wxPanelNameStr);
  62
  63     // implement base class pure virtuals
  64     virtual void SetLabel(const wxString& label);
  65     virtual wxString GetLabel() const;
  66
  67     virtual void Raise();
  68     virtual void Lower();
  69
  70     virtual bool Show(bool show = true);
  71     virtual bool ShowWithEffect(wxShowEffect effect,
  72                                 unsigned timeout = 0)
  73     {
  74         return MSWShowWithEffect(true, effect, timeout);
  75     }
  76     virtual bool HideWithEffect(wxShowEffect effect,
  77                                 unsigned timeout = 0)
  78     {
  79         return MSWShowWithEffect(false, effect, timeout);
  80     }
  81
  82     virtual void SetFocus();
  83     virtual void SetFocusFromKbd();
  84
  85     virtual bool Reparent(wxWindowBase *newParent);
  86
  87     virtual void WarpPointer(int x, int y);
  88
  89     virtual void Refresh( bool eraseBackground = true,
  90                           const wxRect *rect = (const wxRect *) NULL );
  91     virtual void Update();
  92
  93     virtual void SetWindowStyleFlag(long style);
  94     virtual void SetExtraStyle(long exStyle);
  95     virtual bool SetCursor( const wxCursor &cursor );
  96     virtual bool SetFont( const wxFont &font );
  97
  98     virtual int GetCharHeight() const;
  99     virtual int GetCharWidth() const;
 100
 101     virtual void SetScrollbar( int orient, int pos, int thumbVisible,
 102                                int range, bool refresh = true );
 103     virtual void SetScrollPos( int orient, int pos, bool refresh = true );
 104     virtual int GetScrollPos( int orient ) const;
 105     virtual int GetScrollThumb( int orient ) const;
 106     virtual int GetScrollRange( int orient ) const;
 107     virtual void ScrollWindow( int dx, int dy,
 108                                const wxRect* rect = NULL );
 109
 110     virtual bool ScrollLines(int lines);
 111     virtual bool ScrollPages(int pages);
 112
 113     virtual void SetLayoutDirection(wxLayoutDirection dir);
 114     virtual wxLayoutDirection GetLayoutDirection() const;
 115     virtual wxCoord AdjustForLayoutDirection(wxCoord x,
 116                                              wxCoord width,
 117                                              wxCoord widthTotal) const;
 118
 119 #if wxUSE_DRAG_AND_DROP
 120     virtual void SetDropTarget( wxDropTarget *dropTarget );
 121 #endif // wxUSE_DRAG_AND_DROP
 122
 123     // Accept files for dragging
 124     virtual void DragAcceptFiles(bool accept);
 125
 126 #ifndef __WXUNIVERSAL__
 127     // Native resource loading (implemented in src/msw/nativdlg.cpp)
 128     // FIXME: should they really be all virtual?
 129     virtual bool LoadNativeDialog(wxWindow* parent, wxWindowID& id);
 130     virtual bool LoadNativeDialog(wxWindow* parent, const wxString& name);
 131     wxWindow* GetWindowChild1(wxWindowID id);
 132     wxWindow* GetWindowChild(wxWindowID id);
 133 #endif // __WXUNIVERSAL__
 134
 135 #if wxUSE_HOTKEY
 136     // install and deinstall a system wide hotkey
 137     virtual bool RegisterHotKey(int hotkeyId, int modifiers, int keycode);
 138     virtual bool UnregisterHotKey(int hotkeyId);
 139 #endif // wxUSE_HOTKEY
 140
 141 #ifdef __POCKETPC__
 142     bool IsContextMenuEnabled() const { return m_contextMenuEnabled; }
 143     void EnableContextMenu(bool enable = true) { m_contextMenuEnabled = enable; }
 144 #endif
 145
 146     // window handle stuff
 147     // -------------------
 148
 149     WXHWND GetHWND() const { return m_hWnd; }
 150     void SetHWND(WXHWND hWnd) { m_hWnd = hWnd; }
 151     virtual WXWidget GetHandle() const { return GetHWND(); }
 152
 153     void AssociateHandle(WXWidget handle);
 154     void DissociateHandle();
 155
 156     // does this window have deferred position and/or size?
 157     bool IsSizeDeferred() const;
 158
 159     // these functions allow to register a global handler for the given Windows
 160     // message: it will be called from MSWWindowProc() of any window which gets
 161     // this event if it's not processed before (i.e. unlike a hook procedure it
 162     // does not override the normal processing)
 163     //
 164     // notice that if you want to process a message for a given window only you
 165     // should override its MSWWindowProc() instead
 166
 167     // type of the handler: it is called with the message parameters (except
 168     // that the window object is passed instead of window handle) and should
 169     // return true if it handled the message or false if it should be passed to
 170     // DefWindowProc()
 171     typedef bool (*MSWMessageHandler)(wxWindowMSW *win,
 172                                       WXUINT nMsg,
 173                                       WXWPARAM wParam,
 174                                       WXLPARAM lParam);
 175
 176     // install a handler, shouldn't be called more than one for the same message
 177     static bool MSWRegisterMessageHandler(int msg, MSWMessageHandler handler);
 178
 179     // unregister a previously registered handler
 180     static void MSWUnregisterMessageHandler(int msg, MSWMessageHandler handler);
 181
 182
 183     // implementation from now on
 184     // ==========================
 185
 186     // event handlers
 187     // --------------
 188
 189     void OnPaint(wxPaintEvent& event);
 190 #ifdef __WXWINCE__
 191     void OnInitDialog(wxInitDialogEvent& event);
 192 #endif
 193
 194 public:
 195     // Windows subclassing
 196     void SubclassWin(WXHWND hWnd);
 197     void UnsubclassWin();
 198
 199     WXFARPROC MSWGetOldWndProc() const { return m_oldWndProc; }
 200     void MSWSetOldWndProc(WXFARPROC proc) { m_oldWndProc = proc; }
 201
 202     // return true if the window is of a standard (i.e. not wxWidgets') class
 203     //
 204     // to understand why does it work, look at SubclassWin() code and comments
 205     bool IsOfStandardClass() const { return m_oldWndProc != NULL; }
 206
 207     wxWindow *FindItem(long id) const;
 208     wxWindow *FindItemByHWND(WXHWND hWnd, bool controlOnly = false) const;
 209
 210     // MSW only: true if this control is part of the main control
 211     virtual bool ContainsHWND(WXHWND WXUNUSED(hWnd)) const { return false; }
 212
 213 #if wxUSE_TOOLTIPS
 214     // MSW only: true if this window or any of its children have a tooltip
 215     virtual bool HasToolTips() const { return GetToolTip() != NULL; }
 216 #endif // wxUSE_TOOLTIPS
 217
 218     // translate wxWidgets style flags for this control into the Windows style
 219     // and optional extended style for the corresponding native control
 220     //
 221     // this is the function that should be overridden in the derived classes,
 222     // but you will mostly use MSWGetCreateWindowFlags() below
 223     virtual WXDWORD MSWGetStyle(long flags, WXDWORD *exstyle = NULL) const ;
 224
 225     // get the MSW window flags corresponding to wxWidgets ones
 226     //
 227     // the functions returns the flags (WS_XXX) directly and puts the ext
 228     // (WS_EX_XXX) flags into the provided pointer if not NULL
 229     WXDWORD MSWGetCreateWindowFlags(WXDWORD *exflags = NULL) const
 230         { return MSWGetStyle(GetWindowStyle(), exflags); }
 231
 232     // update the real underlying window style flags to correspond to the
 233     // current wxWindow object style (safe to call even if window isn't fully
 234     // created yet)
 235     void MSWUpdateStyle(long flagsOld, long exflagsOld);
 236
 237     // get the HWND to be used as parent of this window with CreateWindow()
 238     virtual WXHWND MSWGetParent() const;
 239
 240     // get the Win32 window class name used by all wxWindow objects by default
 241     static const wxChar *MSWGetRegisteredClassName();
 242
 243     // creates the window of specified Windows class with given style, extended
 244     // style, title and geometry (default values
 245     //
 246     // returns true if the window has been created, false if creation failed
 247     bool MSWCreate(const wxChar *wclass,
 248                    const wxChar *title = NULL,
 249                    const wxPoint& pos = wxDefaultPosition,
 250                    const wxSize& size = wxDefaultSize,
 251                    WXDWORD style = 0,
 252                    WXDWORD exendedStyle = 0);
 253
 254     virtual bool MSWCommand(WXUINT param, WXWORD id);
 255
 256 #ifndef __WXUNIVERSAL__
 257     // Create an appropriate wxWindow from a HWND
 258     virtual wxWindow* CreateWindowFromHWND(wxWindow* parent, WXHWND hWnd);
 259
 260     // Make sure the window style reflects the HWND style (roughly)
 261     virtual void AdoptAttributesFromHWND();
 262 #endif // __WXUNIVERSAL__
 263
 264     // Setup background and foreground colours correctly
 265     virtual void SetupColours();
 266
 267     // ------------------------------------------------------------------------
 268     // helpers for message handlers: these perform the same function as the
 269     // message crackers from <windowsx.h> - they unpack WPARAM and LPARAM into
 270     // the correct parameters
 271     // ------------------------------------------------------------------------
 272
 273     void UnpackCommand(WXWPARAM wParam, WXLPARAM lParam,
 274                        WXWORD *id, WXHWND *hwnd, WXWORD *cmd);
 275     void UnpackActivate(WXWPARAM wParam, WXLPARAM lParam,
 276                         WXWORD *state, WXWORD *minimized, WXHWND *hwnd);
 277     void UnpackScroll(WXWPARAM wParam, WXLPARAM lParam,
 278                       WXWORD *code, WXWORD *pos, WXHWND *hwnd);
 279     void UnpackCtlColor(WXWPARAM wParam, WXLPARAM lParam,
 280                         WXHDC *hdc, WXHWND *hwnd);
 281     void UnpackMenuSelect(WXWPARAM wParam, WXLPARAM lParam,
 282                           WXWORD *item, WXWORD *flags, WXHMENU *hmenu);
 283
 284     // ------------------------------------------------------------------------
 285     // internal handlers for MSW messages: all handlers return a boolean value:
 286     // true means that the handler processed the event and false that it didn't
 287     // ------------------------------------------------------------------------
 288
 289     // there are several cases where we have virtual functions for Windows
 290     // message processing: this is because these messages often require to be
 291     // processed in a different manner in the derived classes. For all other
 292     // messages, however, we do *not* have corresponding MSWOnXXX() function
 293     // and if the derived class wants to process them, it should override
 294     // MSWWindowProc() directly.
 295
 296     // scroll event (both horizontal and vertical)
 297     virtual bool MSWOnScroll(int orientation, WXWORD nSBCode,
 298                              WXWORD pos, WXHWND control);
 299
 300     // child control notifications
 301     virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
 302
 303     // owner-drawn controls need to process these messages
 304     virtual bool MSWOnDrawItem(int id, WXDRAWITEMSTRUCT *item);
 305     virtual bool MSWOnMeasureItem(int id, WXMEASUREITEMSTRUCT *item);
 306
 307     // the rest are not virtual
 308     bool HandleCreate(WXLPCREATESTRUCT cs, bool *mayCreate);
 309     bool HandleInitDialog(WXHWND hWndFocus);
 310     bool HandleDestroy();
 311
 312     bool HandlePaint();
 313     bool HandlePrintClient(WXHDC hDC);
 314     bool HandleEraseBkgnd(WXHDC hDC);
 315
 316     bool HandleMinimize();
 317     bool HandleMaximize();
 318     bool HandleSize(int x, int y, WXUINT flag);
 319     bool HandleSizing(wxRect& rect);
 320     bool HandleGetMinMaxInfo(void *mmInfo);
 321     bool HandleEnterSizeMove();
 322     bool HandleExitSizeMove();
 323
 324     bool HandleShow(bool show, int status);
 325     bool HandleActivate(int flag, bool minimized, WXHWND activate);
 326
 327     bool HandleCommand(WXWORD id, WXWORD cmd, WXHWND control);
 328
 329     bool HandleCtlColor(WXHBRUSH *hBrush, WXHDC hdc, WXHWND hWnd);
 330
 331     bool HandlePaletteChanged(WXHWND hWndPalChange);
 332     bool HandleQueryNewPalette();
 333     bool HandleSysColorChange();
 334     bool HandleDisplayChange();
 335     bool HandleCaptureChanged(WXHWND gainedCapture);
 336     virtual bool HandleSettingChange(WXWPARAM wParam, WXLPARAM lParam);
 337
 338     bool HandleQueryEndSession(long logOff, bool *mayEnd);
 339     bool HandleEndSession(bool endSession, long logOff);
 340
 341     bool HandleSetFocus(WXHWND wnd);
 342     bool HandleKillFocus(WXHWND wnd);
 343
 344     bool HandleDropFiles(WXWPARAM wParam);
 345
 346     bool HandleMouseEvent(WXUINT msg, int x, int y, WXUINT flags);
 347     bool HandleMouseMove(int x, int y, WXUINT flags);
 348     bool HandleMouseWheel(WXWPARAM wParam, WXLPARAM lParam);
 349
 350     bool HandleChar(WXWPARAM wParam, WXLPARAM lParam);
 351     bool HandleKeyDown(WXWPARAM wParam, WXLPARAM lParam);
 352     bool HandleKeyUp(WXWPARAM wParam, WXLPARAM lParam);
 353 #if wxUSE_ACCEL
 354     bool HandleHotKey(WXWPARAM wParam, WXLPARAM lParam);
 355 #endif
 356 #ifdef __WIN32__
 357     int HandleMenuChar(int chAccel, WXLPARAM lParam);
 358 #endif
 359     // Create and process a clipboard event specified by type.
 360     bool HandleClipboardEvent( WXUINT nMsg );
 361
 362     bool HandleQueryDragIcon(WXHICON *hIcon);
 363
 364     bool HandleSetCursor(WXHWND hWnd, short nHitTest, int mouseMsg);
 365
 366     bool HandlePower(WXWPARAM wParam, WXLPARAM lParam, bool *vetoed);
 367
 368
 369     // Window procedure
 370     virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
 371
 372     // Calls an appropriate default window procedure
 373     virtual WXLRESULT MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
 374
 375     // message processing helpers
 376
 377     // return false if the message shouldn't be translated/preprocessed but
 378     // dispatched normally
 379     virtual bool MSWShouldPreProcessMessage(WXMSG* pMsg);
 380
 381     // return true if the message was preprocessed and shouldn't be dispatched
 382     virtual bool MSWProcessMessage(WXMSG* pMsg);
 383
 384     // return true if the message was translated and shouldn't be dispatched
 385     virtual bool MSWTranslateMessage(WXMSG* pMsg);
 386
 387     // called when the window is about to be destroyed
 388     virtual void MSWDestroyWindow();
 389
 390
 391     // this function should return the brush to paint the children controls
 392     // background or 0 if this window doesn't impose any particular background
 393     // on its children
 394     //
 395     // the hDC parameter is the DC background will be drawn on, it can be used
 396     // to call SetBrushOrgEx() on it if the returned brush is a bitmap one
 397     //
 398     // child parameter is never NULL, it can be this window itself or one of
 399     // its (grand)children
 400     //
 401     // the base class version returns a solid brush if we have a non default
 402     // background colour or 0 otherwise
 403     virtual WXHBRUSH MSWGetBgBrushForChild(WXHDC hDC, wxWindowMSW *child);
 404
 405     // return the background brush to use for painting the given window by
 406     // querying the parent windows via MSWGetBgBrushForChild() recursively
 407     WXHBRUSH MSWGetBgBrush(WXHDC hDC);
 408
 409     enum MSWThemeColour
 410     {
 411         ThemeColourText = 0,
 412         ThemeColourBackground,
 413         ThemeColourBorder
 414     };
 415
 416     // returns a specific theme colour, or if that is not possible then
 417     // wxSystemSettings::GetColour(fallback)
 418     wxColour MSWGetThemeColour(const wchar_t *themeName,
 419                                int themePart,
 420                                int themeState,
 421                                MSWThemeColour themeColour,
 422                                wxSystemColour fallback) const;
 423
 424     // gives the parent the possibility to draw its children background, e.g.
 425     // this is used by wxNotebook to do it using DrawThemeBackground()
 426     //
 427     // return true if background was drawn, false otherwise
 428     virtual bool MSWPrintChild(WXHDC WXUNUSED(hDC), wxWindow * WXUNUSED(child))
 429     {
 430         return false;
 431     }
 432
 433     // some controls (e.g. wxListBox) need to set the return value themselves
 434     //
 435     // return true to let parent handle it if we don't, false otherwise
 436     virtual bool MSWShouldPropagatePrintChild()
 437     {
 438         return true;
 439     }
 440
 441     // This should be overridden to return true for the controls which have
 442     // themed background that should through their children. Currently only
 443     // wxNotebook uses this.
 444     virtual bool MSWHasInheritableBackground() const { return false; }
 445
 446 #if !defined(__WXWINCE__) && !defined(__WXUNIVERSAL__)
 447     #define wxHAS_MSW_BACKGROUND_ERASE_HOOK
 448 #endif
 449
 450 #ifdef wxHAS_MSW_BACKGROUND_ERASE_HOOK
 451     // allows the child to hook into its parent WM_ERASEBKGND processing: call
 452     // MSWSetEraseBgHook() with a non-NULL window to make parent call
 453     // MSWEraseBgHook() on this window (don't forget to reset it to NULL
 454     // afterwards)
 455     //
 456     // this hack is used by wxToolBar, see comments there
 457     void MSWSetEraseBgHook(wxWindow *child);
 458
 459     // return true if WM_ERASEBKGND is currently hooked
 460     bool MSWHasEraseBgHook() const;
 461
 462     // called when the window on which MSWSetEraseBgHook() had been called
 463     // receives WM_ERASEBKGND
 464     virtual bool MSWEraseBgHook(WXHDC WXUNUSED(hDC)) { return false; }
 465 #endif // wxHAS_MSW_BACKGROUND_ERASE_HOOK
 466
 467     // common part of Show/HideWithEffect()
 468     bool MSWShowWithEffect(bool show,
 469                            wxShowEffect effect,
 470                            unsigned timeout);
 471
 472     // Responds to colour changes: passes event on to children.
 473     void OnSysColourChanged(wxSysColourChangedEvent& event);
 474
 475     // initialize various fields of wxMouseEvent (common part of MSWOnMouseXXX)
 476     void InitMouseEvent(wxMouseEvent& event, int x, int y, WXUINT flags);
 477
 478     // check if mouse is in the window
 479     bool IsMouseInWindow() const;
 480
 481     // check if a native double-buffering applies for this window
 482     virtual bool IsDoubleBuffered() const;
 483
 484     void SetDoubleBuffered(bool on);
 485
 486     // synthesize a wxEVT_LEAVE_WINDOW event and set m_mouseInWindow to false
 487     void GenerateMouseLeave();
 488
 489     // virtual function for implementing internal idle
 490     // behaviour
 491     virtual void OnInternalIdle();
 492
 493 protected:
 494     // this allows you to implement standard control borders without
 495     // repeating the code in different classes that are not derived from
 496     // wxControl
 497     virtual wxBorder GetDefaultBorderForControl() const;
 498
 499     // choose the default border for this window
 500     virtual wxBorder GetDefaultBorder() const;
 501
 502     // Translate wxBORDER_THEME (and other border styles if necessary to the value
 503     // that makes most sense for this Windows environment
 504     virtual wxBorder TranslateBorder(wxBorder border) const;
 505
 506 #if wxUSE_MENUS_NATIVE
 507     virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
 508 #endif // wxUSE_MENUS_NATIVE
 509
 510     // the window handle
 511     WXHWND                m_hWnd;
 512
 513     // the old window proc (we subclass all windows)
 514     WXFARPROC             m_oldWndProc;
 515
 516     // additional (MSW specific) flags
 517     bool                  m_mouseInWindow:1;
 518     bool                  m_lastKeydownProcessed:1;
 519
 520     // the size of one page for scrolling
 521     int                   m_xThumbSize;
 522     int                   m_yThumbSize;
 523
 524     // implement the base class pure virtuals
 525     virtual void DoGetTextExtent(const wxString& string,
 526                                  int *x, int *y,
 527                                  int *descent = NULL,
 528                                  int *externalLeading = NULL,
 529                                  const wxFont *font = NULL) const;
 530     virtual void DoClientToScreen( int *x, int *y ) const;
 531     virtual void DoScreenToClient( int *x, int *y ) const;
 532     virtual void DoGetPosition( int *x, int *y ) const;
 533     virtual void DoGetSize( int *width, int *height ) const;
 534     virtual void DoGetClientSize( int *width, int *height ) const;
 535     virtual void DoSetSize(int x, int y,
 536                            int width, int height,
 537                            int sizeFlags = wxSIZE_AUTO);
 538     virtual void DoSetClientSize(int width, int height);
 539
 540     virtual wxSize DoGetBorderSize() const;
 541
 542     virtual void DoCaptureMouse();
 543     virtual void DoReleaseMouse();
 544
 545     virtual void DoEnable(bool enable);
 546
 547     virtual void DoFreeze();
 548     virtual void DoThaw();
 549
 550     // this simply moves/resizes the given HWND which is supposed to be our
 551     // sibling (this is useful for controls which are composite at MSW level
 552     // and for which DoMoveWindow() is not enough)
 553     //
 554     // returns true if the window move was deferred, false if it was moved
 555     // immediately (no error return)
 556     bool DoMoveSibling(WXHWND hwnd, int x, int y, int width, int height);
 557
 558     // move the window to the specified location and resize it: this is called
 559     // from both DoSetSize() and DoSetClientSize() and would usually just call
 560     // ::MoveWindow() except for composite controls which will want to arrange
 561     // themselves inside the given rectangle
 562     virtual void DoMoveWindow(int x, int y, int width, int height);
 563
 564 #if wxUSE_TOOLTIPS
 565     virtual void DoSetToolTip( wxToolTip *tip );
 566
 567     // process TTN_NEEDTEXT message properly (i.e. fixing the bugs in
 568     // comctl32.dll in our code -- see the function body for more info)
 569     bool HandleTooltipNotify(WXUINT code,
 570                              WXLPARAM lParam,
 571                              const wxString& ttip);
 572 #endif // wxUSE_TOOLTIPS
 573
 574     // This is used by CreateKeyEvent() and also for wxEVT_CHAR[_HOOK] event
 575     // creation. Notice that this method doesn't initialize wxKeyEvent
 576     // m_keyCode and m_uniChar fields.
 577     void InitAnyKeyEvent(wxKeyEvent& event,
 578                          WXWPARAM wParam,
 579                          WXLPARAM lParam) const;
 580
 581     // Helper functions used by HandleKeyXXX() methods and some derived
 582     // classes, wParam and lParam have the same meaning as in WM_KEY{DOWN,UP}.
 583     //
 584     // NB: evType here must be wxEVT_KEY_{DOWN,UP} as wParam here contains the
 585     //     virtual key code, not character!
 586     wxKeyEvent CreateKeyEvent(wxEventType evType,
 587                               WXWPARAM wParam,
 588                               WXLPARAM lParam = 0) const;
 589
 590
 591     // default OnEraseBackground() implementation, return true if we did erase
 592     // the background, false otherwise (i.e. the system should erase it)
 593     bool DoEraseBackground(WXHDC hDC);
 594
 595     // generate WM_CHANGEUISTATE if it's needed for the OS we're running under
 596     //
 597     // action should be one of the UIS_XXX constants
 598     // state should be one or more of the UISF_XXX constants
 599     // if action == UIS_INITIALIZE then it doesn't seem to matter what we use
 600     // for state as the system will decide for us what needs to be set
 601     void MSWUpdateUIState(int action, int state = 0);
 602
 603     // translate wxWidgets coords into Windows ones suitable to be passed to
 604     // ::CreateWindow(), called from MSWCreate()
 605     virtual void MSWGetCreateWindowCoords(const wxPoint& pos,
 606                                           const wxSize& size,
 607                                           int& x, int& y,
 608                                           int& w, int& h) const;
 609
 610     bool MSWEnableHWND(WXHWND hWnd, bool enable);
 611
 612 private:
 613     // common part of all ctors
 614     void Init();
 615
 616     // the (non-virtual) handlers for the events
 617     bool HandleMove(int x, int y);
 618     bool HandleMoving(wxRect& rect);
 619     bool HandleJoystickEvent(WXUINT msg, int x, int y, WXUINT flags);
 620     bool HandleNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
 621
 622 #if wxUSE_DEFERRED_SIZING
 623 protected:
 624     // this function is called after the window was resized to its new size
 625     virtual void MSWEndDeferWindowPos()
 626     {
 627         m_pendingPosition = wxDefaultPosition;
 628         m_pendingSize = wxDefaultSize;
 629     }
 630
 631     // current defer window position operation handle (may be NULL)
 632     WXHANDLE m_hDWP;
 633
 634     // When deferred positioning is done these hold the pending changes, and
 635     // are used for the default values if another size/pos changes is done on
 636     // this window before the group of deferred changes is completed.
 637     wxPoint     m_pendingPosition;
 638     wxSize      m_pendingSize;
 639 #endif // wxUSE_DEFERRED_SIZING
 640
 641 private:
 642 #ifdef __POCKETPC__
 643     bool        m_contextMenuEnabled;
 644 #endif
 645
 646     DECLARE_DYNAMIC_CLASS(wxWindowMSW)
 647     wxDECLARE_NO_COPY_CLASS(wxWindowMSW);
 648     DECLARE_EVENT_TABLE()
 649 };
 650
 651 // window creation helper class: before creating a new HWND, instantiate an
 652 // object of this class on stack - this allows to process the messages sent to
 653 // the window even before CreateWindow() returns
 654 class wxWindowCreationHook
 655 {
 656 public:
 657     wxWindowCreationHook(wxWindowMSW *winBeingCreated);
 658     ~wxWindowCreationHook();
 659 };
 660
 661 #endif // _WX_WINDOW_H_