include/wx/msw/private.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        private.h
   3 // Purpose:     Private declarations: as this header is only included by
   4 //              wxWidgets itself, it may contain identifiers which don't start
   5 //              with "wx".
   6 // Author:      Julian Smart
   7 // Modified by:
   8 // Created:     01/02/97
   9 // RCS-ID:      $Id$
  10 // Copyright:   (c) Julian Smart
  11 // Licence:     wxWindows licence
  12 /////////////////////////////////////////////////////////////////////////////
  13
  14 #ifndef _WX_PRIVATE_H_
  15 #define _WX_PRIVATE_H_
  16
  17 #include "wx/msw/wrapwin.h"
  18
  19 #ifdef __WXMICROWIN__
  20     // Extra prototypes and symbols not defined by MicroWindows
  21     #include "wx/msw/microwin.h"
  22 #endif
  23
  24 // Include fixes for MSLU:
  25 #include "wx/msw/mslu.h"
  26
  27 #include "wx/log.h"
  28
  29 class WXDLLEXPORT wxFont;
  30 class WXDLLEXPORT wxWindow;
  31
  32 // ---------------------------------------------------------------------------
  33 // private constants
  34 // ---------------------------------------------------------------------------
  35
  36 // Conversion
  37 static const double METRIC_CONVERSION_CONSTANT = 0.0393700787;
  38
  39 // Scaling factors for various unit conversions
  40 static const double mm2inches = (METRIC_CONVERSION_CONSTANT);
  41 static const double inches2mm = (1/METRIC_CONVERSION_CONSTANT);
  42
  43 static const double mm2twips = (METRIC_CONVERSION_CONSTANT*1440);
  44 static const double twips2mm = (1/(METRIC_CONVERSION_CONSTANT*1440));
  45
  46 static const double mm2pt = (METRIC_CONVERSION_CONSTANT*72);
  47 static const double pt2mm = (1/(METRIC_CONVERSION_CONSTANT*72));
  48
  49 // ---------------------------------------------------------------------------
  50 // standard icons from the resources
  51 // ---------------------------------------------------------------------------
  52
  53 #if wxUSE_GUI
  54
  55 WXDLLEXPORT_DATA(extern HICON) wxSTD_FRAME_ICON;
  56 WXDLLEXPORT_DATA(extern HICON) wxSTD_MDIPARENTFRAME_ICON;
  57 WXDLLEXPORT_DATA(extern HICON) wxSTD_MDICHILDFRAME_ICON;
  58 WXDLLEXPORT_DATA(extern HICON) wxDEFAULT_FRAME_ICON;
  59 WXDLLEXPORT_DATA(extern HICON) wxDEFAULT_MDIPARENTFRAME_ICON;
  60 WXDLLEXPORT_DATA(extern HICON) wxDEFAULT_MDICHILDFRAME_ICON;
  61 WXDLLEXPORT_DATA(extern HFONT) wxSTATUS_LINE_FONT;
  62
  63 #endif // wxUSE_GUI
  64
  65 // ---------------------------------------------------------------------------
  66 // define things missing from some compilers' headers
  67 // ---------------------------------------------------------------------------
  68
  69 #if defined(__WXWINCE__) || (defined(__GNUWIN32__) && !wxUSE_NORLANDER_HEADERS)
  70 #ifndef ZeroMemory
  71     inline void ZeroMemory(void *buf, size_t len) { memset(buf, 0, len); }
  72 #endif
  73 #endif // old mingw32
  74
  75 // this defines a CASTWNDPROC macro which casts a pointer to the type of a
  76 // window proc
  77 #if defined(STRICT) || defined(__GNUC__)
  78     typedef WNDPROC WndProcCast;
  79 #else
  80     typedef FARPROC WndProcCast;
  81 #endif
  82
  83
  84 #define CASTWNDPROC (WndProcCast)
  85
  86
  87
  88 // ---------------------------------------------------------------------------
  89 // some stuff for old Windows versions (FIXME: what does it do here??)
  90 // ---------------------------------------------------------------------------
  91
  92 #if !defined(APIENTRY)  // NT defines APIENTRY, 3.x not
  93     #define APIENTRY FAR PASCAL
  94 #endif
  95
  96 #ifdef __WIN32__
  97     #define _EXPORT
  98 #else
  99     #define _EXPORT _export
 100 #endif
 101
 102 #ifndef __WIN32__
 103     typedef signed short int SHORT;
 104 #endif
 105
 106 #if !defined(__WIN32__)  // 3.x uses FARPROC for dialogs
 107 #ifndef STRICT
 108     #define DLGPROC FARPROC
 109 #endif
 110 #endif
 111
 112 #if wxUSE_PENWIN
 113     WXDLLEXPORT void wxRegisterPenWin();
 114     WXDLLEXPORT void wxCleanUpPenWin();
 115     WXDLLEXPORT void wxEnablePenAppHooks (bool hook);
 116 #endif // wxUSE_PENWIN
 117
 118 #if wxUSE_ITSY_BITSY
 119     #define IBS_HORZCAPTION    0x4000L
 120     #define IBS_VERTCAPTION    0x8000L
 121
 122     UINT    WINAPI ibGetCaptionSize( HWND hWnd  ) ;
 123     UINT    WINAPI ibSetCaptionSize( HWND hWnd, UINT nSize ) ;
 124     LRESULT WINAPI ibDefWindowProc( HWND hWnd, UINT uiMsg, WPARAM wParam, LPARAM lParam ) ;
 125     VOID    WINAPI ibAdjustWindowRect( HWND hWnd, LPRECT lprc ) ;
 126 #endif // wxUSE_ITSY_BITSY
 127
 128 #if wxUSE_CTL3D
 129     #include "wx/msw/ctl3d/ctl3d.h"
 130 #endif // wxUSE_CTL3D
 131
 132 /*
 133  * Decide what window classes we're going to use
 134  * for this combination of CTl3D/FAFA settings
 135  */
 136
 137 #define STATIC_CLASS     wxT("STATIC")
 138 #define STATIC_FLAGS     (SS_LEFT|WS_CHILD|WS_VISIBLE)
 139 #define CHECK_CLASS      wxT("BUTTON")
 140 #define CHECK_FLAGS      (BS_AUTOCHECKBOX|WS_TABSTOP|WS_CHILD)
 141 #define CHECK_IS_FAFA   FALSE
 142 #define RADIO_CLASS      wxT("BUTTON")
 143 #define RADIO_FLAGS      (BS_AUTORADIOBUTTON|WS_CHILD|WS_VISIBLE)
 144 #define RADIO_SIZE       20
 145 #define RADIO_IS_FAFA   FALSE
 146 #define PURE_WINDOWS
 147 #define GROUP_CLASS      wxT("BUTTON")
 148 #define GROUP_FLAGS      (BS_GROUPBOX|WS_CHILD|WS_VISIBLE)
 149
 150 /*
 151 #define BITCHECK_FLAGS   (FB_BITMAP|FC_BUTTONDRAW|FC_DEFAULT|WS_VISIBLE)
 152 #define BITRADIO_FLAGS   (FC_BUTTONDRAW|FB_BITMAP|FC_RADIO|WS_CHILD|WS_VISIBLE)
 153 */
 154
 155 // ---------------------------------------------------------------------------
 156 // misc macros
 157 // ---------------------------------------------------------------------------
 158
 159 #define MEANING_CHARACTER '0'
 160 #define DEFAULT_ITEM_WIDTH  100
 161 #define DEFAULT_ITEM_HEIGHT 80
 162
 163 // Scale font to get edit control height
 164 //#define EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)    (3*(cy)/2)
 165 #define EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)    (cy+8)
 166
 167 // Generic subclass proc, for panel item moving/sizing and intercept
 168 // EDIT control VK_RETURN messages
 169 extern LONG APIENTRY _EXPORT
 170   wxSubclassedGenericControlProc(WXHWND hWnd, WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
 171
 172 // ---------------------------------------------------------------------------
 173 // useful macros and functions
 174 // ---------------------------------------------------------------------------
 175
 176 // a wrapper macro for ZeroMemory()
 177 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 178 #define wxZeroMemory(obj)   ::ZeroMemory(&obj, sizeof(obj))
 179 #else
 180 #define wxZeroMemory(obj)   memset((void*) & obj, 0, sizeof(obj))
 181 #endif
 182
 183 #if wxUSE_GUI
 184
 185 #include <wx/gdicmn.h>
 186 #include <wx/colour.h>
 187
 188 // make conversion from wxColour and COLORREF a bit less painful
 189 inline COLORREF wxColourToRGB(const wxColour& c)
 190 {
 191     return RGB(c.Red(), c.Green(), c.Blue());
 192 }
 193
 194 inline COLORREF wxColourToPalRGB(const wxColour& c)
 195 {
 196     return PALETTERGB(c.Red(), c.Green(), c.Blue());
 197 }
 198
 199 inline wxColour wxRGBToColour(COLORREF rgb)
 200 {
 201     return wxColour(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
 202 }
 203
 204 inline void wxRGBToColour(wxColour& c, COLORREF rgb)
 205 {
 206     c.Set(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
 207 }
 208
 209 // get the standard colour map for some standard colours - see comment in this
 210 // function to understand why is it needed and when should it be used
 211 //
 212 // it returns a wxCOLORMAP (can't use COLORMAP itself here as comctl32.dll
 213 // might be not included/available) array of size wxSTD_COLOUR_MAX
 214 //
 215 // NB: if you change these colours, update wxBITMAP_STD_COLOURS in the
 216 //     resources as well: it must have the same number of pixels!
 217 enum wxSTD_COLOUR
 218 {
 219     wxSTD_COL_BTNTEXT,
 220     wxSTD_COL_BTNSHADOW,
 221     wxSTD_COL_BTNFACE,
 222     wxSTD_COL_BTNHIGHLIGHT,
 223     wxSTD_COL_MAX,
 224 };
 225
 226 struct WXDLLEXPORT wxCOLORMAP
 227 {
 228     COLORREF from, to;
 229 };
 230
 231 // this function is implemented in src/msw/window.cpp
 232 extern wxCOLORMAP *wxGetStdColourMap();
 233
 234 // copy Windows RECT to our wxRect
 235 inline void wxCopyRECTToRect(const RECT& r, wxRect& rect)
 236 {
 237     rect.y = r.top;
 238     rect.x = r.left;
 239     rect.width = r.right - r.left;
 240     rect.height = r.bottom - r.top;
 241 }
 242
 243 // translations between HIMETRIC units (which OLE likes) and pixels (which are
 244 // liked by all the others) - implemented in msw/utilsexc.cpp
 245 extern void HIMETRICToPixel(LONG *x, LONG *y);
 246 extern void PixelToHIMETRIC(LONG *x, LONG *y);
 247
 248 // Windows convention of the mask is opposed to the wxWidgets one, so we need
 249 // to invert the mask each time we pass one/get one to/from Windows
 250 extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w = 0, int h = 0);
 251
 252 // Creates an icon or cursor depending from a bitmap
 253 //
 254 // The bitmap must be valid and it should have a mask. If it doesn't, a default
 255 // mask is created using light grey as the transparent colour.
 256 extern HICON wxBitmapToHICON(const wxBitmap& bmp);
 257
 258 // Same requirments as above apply and the bitmap must also have the correct
 259 // size.
 260 extern
 261 HCURSOR wxBitmapToHCURSOR(const wxBitmap& bmp, int hotSpotX, int hotSpotY);
 262
 263 // get (x, y) from DWORD - notice that HI/LOWORD can *not* be used because they
 264 // will fail on system with multiple monitors where the coords may be negative
 265 //
 266 // these macros are standard now (Win98) but some older headers don't have them
 267 #ifndef GET_X_LPARAM
 268     #define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
 269     #define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
 270 #endif // GET_X_LPARAM
 271
 272 // get the current state of SHIFT/CTRL keys
 273 inline bool wxIsShiftDown()
 274 {
 275 //    return (::GetKeyState(VK_SHIFT) & 0x100) != 0;
 276     // Returns different negative values on WinME and WinNT,
 277     // so simply test for negative value.
 278     return ::GetKeyState(VK_SHIFT) < 0;
 279 }
 280
 281 inline bool wxIsCtrlDown()
 282 {
 283 //    return (::GetKeyState(VK_CONTROL) & 0x100) != 0;
 284     // Returns different negative values on WinME and WinNT,
 285     // so simply test for negative value.
 286     return ::GetKeyState(VK_CONTROL) < 0;
 287 }
 288
 289 // wrapper around GetWindowRect() and GetClientRect() APIs doing error checking
 290 // for Win32
 291 inline RECT wxGetWindowRect(HWND hwnd)
 292 {
 293     RECT rect;
 294
 295     if ( !::GetWindowRect(hwnd, &rect) )
 296     {
 297         wxLogLastError(_T("GetWindowRect"));
 298     }
 299
 300     return rect;
 301 }
 302
 303 inline RECT wxGetClientRect(HWND hwnd)
 304 {
 305     RECT rect;
 306
 307     if ( !::GetClientRect(hwnd, &rect) )
 308     {
 309         wxLogLastError(_T("GetClientRect"));
 310     }
 311
 312     return rect;
 313 }
 314
 315 // ---------------------------------------------------------------------------
 316 // small helper classes
 317 // ---------------------------------------------------------------------------
 318
 319 // a template to make initializing Windows styructs less painful: it zeroes all
 320 // the struct fields and also sets cbSize member to the correct value (and so
 321 // can be only used with structures which have this member...)
 322 template <class T>
 323 struct WinStruct : public T
 324 {
 325     WinStruct()
 326     {
 327         ::ZeroMemory(this, sizeof(T));
 328         // NB: gcc-3.4 would give syntax error without "this->"
 329         this->cbSize = sizeof(T);
 330     }
 331 };
 332
 333
 334 // create an instance of this class and use it as the HDC for screen, will
 335 // automatically release the DC going out of scope
 336 class ScreenHDC
 337 {
 338 public:
 339     ScreenHDC() { m_hdc = ::GetDC(NULL);    }
 340    ~ScreenHDC() { ::ReleaseDC(NULL, m_hdc); }
 341
 342     operator HDC() const { return m_hdc; }
 343
 344 private:
 345     HDC m_hdc;
 346
 347     DECLARE_NO_COPY_CLASS(ScreenHDC)
 348 };
 349
 350 // the same as ScreenHDC but for memory DCs: creates the HDC compatible with
 351 // the given one (screen by default) in ctor and destroys it in dtor
 352 class MemoryHDC
 353 {
 354 public:
 355     MemoryHDC(HDC hdc = 0) { m_hdc = ::CreateCompatibleDC(hdc); }
 356    ~MemoryHDC() { ::DeleteDC(m_hdc); }
 357
 358     operator HDC() const { return m_hdc; }
 359
 360 private:
 361     HDC m_hdc;
 362
 363     DECLARE_NO_COPY_CLASS(MemoryHDC)
 364 };
 365
 366 // a class which selects a GDI object into a DC in its ctor and deselects in
 367 // dtor
 368 class SelectInHDC
 369 {
 370 public:
 371     SelectInHDC(HDC hdc, HGDIOBJ hgdiobj) : m_hdc(hdc)
 372         { m_hgdiobj = ::SelectObject(hdc, hgdiobj); }
 373
 374    ~SelectInHDC() { ::SelectObject(m_hdc, m_hgdiobj); }
 375
 376    // return true if the object was successfully selected
 377    operator bool() const { return m_hgdiobj != 0; }
 378
 379 private:
 380    HDC m_hdc;
 381    HGDIOBJ m_hgdiobj;
 382
 383    DECLARE_NO_COPY_CLASS(SelectInHDC)
 384 };
 385
 386 // when working with global pointers (which is unfortunately still necessary
 387 // sometimes, e.g. for clipboard) it is important to unlock them exactly as
 388 // many times as we lock them which just asks for using a "smart lock" class
 389 class GlobalPtr
 390 {
 391 public:
 392     GlobalPtr(HGLOBAL hGlobal) : m_hGlobal(hGlobal)
 393     {
 394         m_ptr = GlobalLock(hGlobal);
 395         if ( !m_ptr )
 396         {
 397             wxLogLastError(_T("GlobalLock"));
 398         }
 399     }
 400
 401     ~GlobalPtr()
 402     {
 403         if ( !GlobalUnlock(m_hGlobal) )
 404         {
 405 #ifdef __WXDEBUG__
 406             // this might happen simply because the block became unlocked
 407             DWORD dwLastError = ::GetLastError();
 408             if ( dwLastError != NO_ERROR )
 409             {
 410                 wxLogApiError(_T("GlobalUnlock"), dwLastError);
 411             }
 412 #endif // __WXDEBUG__
 413         }
 414     }
 415
 416     operator void *() const { return m_ptr; }
 417
 418 private:
 419     HGLOBAL m_hGlobal;
 420     void *m_ptr;
 421
 422     DECLARE_NO_COPY_CLASS(GlobalPtr)
 423 };
 424
 425 // ---------------------------------------------------------------------------
 426 // macros to make casting between WXFOO and FOO a bit easier: the GetFoo()
 427 // returns Foo cast to the Windows type for oruselves, while GetFooOf() takes
 428 // an argument which should be a pointer or reference to the object of the
 429 // corresponding class (this depends on the macro)
 430 // ---------------------------------------------------------------------------
 431
 432 #define GetHwnd()               ((HWND)GetHWND())
 433 #define GetHwndOf(win)          ((HWND)((win)->GetHWND()))
 434 // old name
 435 #define GetWinHwnd              GetHwndOf
 436
 437 #define GetHdc()                ((HDC)GetHDC())
 438 #define GetHdcOf(dc)            ((HDC)(dc).GetHDC())
 439
 440 #define GetHbitmap()            ((HBITMAP)GetHBITMAP())
 441 #define GetHbitmapOf(bmp)       ((HBITMAP)(bmp).GetHBITMAP())
 442
 443 #define GetHicon()              ((HICON)GetHICON())
 444 #define GetHiconOf(icon)        ((HICON)(icon).GetHICON())
 445
 446 #define GetHaccel()             ((HACCEL)GetHACCEL())
 447 #define GetHaccelOf(table)      ((HACCEL)((table).GetHACCEL()))
 448
 449 #define GetHbrush()             ((HPEN)GetResourceHandle())
 450 #define GetHbrushOf(brush)      ((HPEN)(brush).GetResourceHandle())
 451
 452 #define GetHmenu()              ((HMENU)GetHMenu())
 453 #define GetHmenuOf(menu)        ((HMENU)menu->GetHMenu())
 454
 455 #define GetHcursor()            ((HCURSOR)GetHCURSOR())
 456 #define GetHcursorOf(cursor)    ((HCURSOR)(cursor).GetHCURSOR())
 457
 458 #define GetHfont()              ((HFONT)GetHFONT())
 459 #define GetHfontOf(font)        ((HFONT)(font).GetHFONT())
 460
 461 #define GetHpalette()           ((HPALETTE)GetHPALETTE())
 462 #define GetHpaletteOf(pal)      ((HPALETTE)(pal).GetHPALETTE())
 463
 464 #define GetHpen()               ((HPEN)GetResourceHandle())
 465 #define GetHpenOf(pen)          ((HPEN)(pen).GetResourceHandle())
 466
 467 #define GetHrgn()               ((HRGN)GetHRGN())
 468 #define GetHrgnOf(rgn)          ((HRGN)(rgn).GetHRGN())
 469
 470 #endif // wxUSE_GUI
 471
 472 // ---------------------------------------------------------------------------
 473 // global data
 474 // ---------------------------------------------------------------------------
 475
 476 WXDLLIMPEXP_DATA_BASE(extern HINSTANCE) wxhInstance;
 477
 478 // ---------------------------------------------------------------------------
 479 // global functions
 480 // ---------------------------------------------------------------------------
 481
 482 extern "C"
 483 {
 484     WXDLLIMPEXP_BASE HINSTANCE wxGetInstance();
 485 }
 486
 487 WXDLLIMPEXP_BASE void wxSetInstance(HINSTANCE hInst);
 488
 489 #if wxUSE_GUI
 490
 491 // cursor stuff
 492 extern HCURSOR wxGetCurrentBusyCursor();    // from msw/utils.cpp
 493 extern const wxCursor *wxGetGlobalCursor(); // from msw/cursor.cpp
 494
 495 WXDLLEXPORT void wxGetCharSize(WXHWND wnd, int *x, int *y, const wxFont *the_font);
 496 WXDLLEXPORT void wxFillLogFont(LOGFONT *logFont, const wxFont *font);
 497 WXDLLEXPORT wxFont wxCreateFontFromLogFont(const LOGFONT *logFont);
 498 WXDLLEXPORT wxFontEncoding wxGetFontEncFromCharSet(int charset);
 499
 500 WXDLLEXPORT void wxSliderEvent(WXHWND control, WXWORD wParam, WXWORD pos);
 501 WXDLLEXPORT void wxScrollBarEvent(WXHWND hbar, WXWORD wParam, WXWORD pos);
 502
 503 // Find maximum size of window/rectangle
 504 WXDLLEXPORT extern void wxFindMaxSize(WXHWND hwnd, RECT *rect);
 505
 506 // Safely get the window text (i.e. without using fixed size buffer)
 507 WXDLLEXPORT extern wxString wxGetWindowText(WXHWND hWnd);
 508
 509 // get the window class name
 510 WXDLLEXPORT extern wxString wxGetWindowClass(WXHWND hWnd);
 511
 512 // get the window id (should be unsigned, hence this is not wxWindowID which
 513 // is, for mainly historical reasons, signed)
 514 WXDLLEXPORT extern WXWORD wxGetWindowId(WXHWND hWnd);
 515
 516 // check if hWnd's WNDPROC is wndProc. Return true if yes, false if they are
 517 // different
 518 WXDLLEXPORT extern bool wxCheckWindowWndProc(WXHWND hWnd, WXFARPROC wndProc);
 519
 520 // Does this window style specify any border?
 521 inline bool wxStyleHasBorder(long style)
 522 {
 523     return (style & (wxSIMPLE_BORDER | wxRAISED_BORDER |
 524                      wxSUNKEN_BORDER | wxDOUBLE_BORDER)) != 0;
 525 }
 526
 527 // ----------------------------------------------------------------------------
 528 // functions mapping HWND to wxWindow
 529 // ----------------------------------------------------------------------------
 530
 531 // this function simply checks whether the given hWnd corresponds to a wxWindow
 532 // and returns either that window if it does or NULL otherwise
 533 WXDLLEXPORT extern wxWindow* wxFindWinFromHandle(WXHWND hWnd);
 534
 535 // find the window for HWND which is part of some wxWindow, i.e. unlike
 536 // wxFindWinFromHandle() above it will also work for "sub controls" of a
 537 // wxWindow.
 538 //
 539 // returns the wxWindow corresponding to the given HWND or NULL.
 540 WXDLLEXPORT extern wxWindow *wxGetWindowFromHWND(WXHWND hwnd);
 541
 542 // Get the size of an icon
 543 WXDLLEXPORT extern wxSize wxGetHiconSize(HICON hicon);
 544
 545 // Lines are drawn differently for WinCE and regular WIN32
 546 WXDLLEXPORT void wxDrawLine(HDC hdc, int x1, int y1, int x2, int y2);
 547
 548 // ----------------------------------------------------------------------------
 549 // 32/64 bit helpers
 550 // ----------------------------------------------------------------------------
 551
 552 #ifdef __WIN64__
 553
 554 inline void *wxGetWindowProc(HWND hwnd)
 555 {
 556     return (void *)::GetWindowLongPtr(hwnd, GWLP_WNDPROC);
 557 }
 558
 559 inline void *wxGetWindowUserData(HWND hwnd)
 560 {
 561     return (void *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
 562 }
 563
 564 inline WNDPROC wxSetWindowProc(HWND hwnd, WNDPROC func)
 565 {
 566     return (WNDPROC)::SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)func);
 567 }
 568
 569 inline void *wxSetWindowUserData(HWND hwnd, void *data)
 570 {
 571     return (void *)::SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)data);
 572 }
 573
 574 #else // __WIN32__
 575
 576 inline void *wxGetWindowProc(HWND hwnd)
 577 {
 578     return (void *)::GetWindowLong(hwnd, GWL_WNDPROC);
 579 }
 580
 581 inline void *wxGetWindowUserData(HWND hwnd)
 582 {
 583     return (void *)::GetWindowLong(hwnd, GWL_USERDATA);
 584 }
 585
 586 inline WNDPROC wxSetWindowProc(HWND hwnd, WNDPROC func)
 587 {
 588     return (WNDPROC)::SetWindowLong(hwnd, GWL_WNDPROC, (LONG)func);
 589 }
 590
 591 inline void *wxSetWindowUserData(HWND hwnd, void *data)
 592 {
 593     return (void *)::SetWindowLong(hwnd, GWL_USERDATA, (LONG)data);
 594 }
 595
 596 #endif // __WIN64__/__WIN32__
 597
 598 #endif // wxUSE_GUI
 599
 600 #endif
 601     // _WX_PRIVATE_H_