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 // 260 was taken from windef.h
  37 #ifndef MAX_PATH
  38     #define MAX_PATH  260
  39 #endif
  40
  41 // ---------------------------------------------------------------------------
  42 // standard icons from the resources
  43 // ---------------------------------------------------------------------------
  44
  45 #if wxUSE_GUI
  46
  47 extern WXDLLEXPORT_DATA(HICON) wxSTD_FRAME_ICON;
  48 extern WXDLLEXPORT_DATA(HICON) wxSTD_MDIPARENTFRAME_ICON;
  49 extern WXDLLEXPORT_DATA(HICON) wxSTD_MDICHILDFRAME_ICON;
  50 extern WXDLLEXPORT_DATA(HICON) wxDEFAULT_FRAME_ICON;
  51 extern WXDLLEXPORT_DATA(HICON) wxDEFAULT_MDIPARENTFRAME_ICON;
  52 extern WXDLLEXPORT_DATA(HICON) wxDEFAULT_MDICHILDFRAME_ICON;
  53 extern WXDLLEXPORT_DATA(HFONT) wxSTATUS_LINE_FONT;
  54
  55 #endif // wxUSE_GUI
  56
  57 // ---------------------------------------------------------------------------
  58 // global data
  59 // ---------------------------------------------------------------------------
  60
  61 extern WXDLLIMPEXP_DATA_BASE(HINSTANCE) wxhInstance;
  62
  63 // ---------------------------------------------------------------------------
  64 // define things missing from some compilers' headers
  65 // ---------------------------------------------------------------------------
  66
  67 #if defined(__WXWINCE__) || (defined(__GNUWIN32__) && !wxUSE_NORLANDER_HEADERS)
  68 #ifndef ZeroMemory
  69     inline void ZeroMemory(void *buf, size_t len) { memset(buf, 0, len); }
  70 #endif
  71 #endif // old mingw32
  72
  73 // this defines a CASTWNDPROC macro which casts a pointer to the type of a
  74 // window proc
  75 #if defined(STRICT) || defined(__GNUC__)
  76     typedef WNDPROC WndProcCast;
  77 #else
  78     typedef FARPROC WndProcCast;
  79 #endif
  80
  81
  82 #define CASTWNDPROC (WndProcCast)
  83
  84
  85
  86 // ---------------------------------------------------------------------------
  87 // some stuff for old Windows versions (FIXME: what does it do here??)
  88 // ---------------------------------------------------------------------------
  89
  90 #if !defined(APIENTRY)  // NT defines APIENTRY, 3.x not
  91     #define APIENTRY FAR PASCAL
  92 #endif
  93
  94 #ifdef __WIN32__
  95     #define _EXPORT
  96 #else
  97     #define _EXPORT _export
  98 #endif
  99
 100 #ifndef __WIN32__
 101     typedef signed short int SHORT;
 102 #endif
 103
 104 #if !defined(__WIN32__)  // 3.x uses FARPROC for dialogs
 105 #ifndef STRICT
 106     #define DLGPROC FARPROC
 107 #endif
 108 #endif
 109
 110 #if wxUSE_PENWIN
 111     WXDLLEXPORT void wxRegisterPenWin();
 112     WXDLLEXPORT void wxCleanUpPenWin();
 113     WXDLLEXPORT void wxEnablePenAppHooks (bool hook);
 114 #endif // wxUSE_PENWIN
 115
 116 #if wxUSE_ITSY_BITSY
 117     #define IBS_HORZCAPTION    0x4000L
 118     #define IBS_VERTCAPTION    0x8000L
 119
 120     UINT    WINAPI ibGetCaptionSize( HWND hWnd  ) ;
 121     UINT    WINAPI ibSetCaptionSize( HWND hWnd, UINT nSize ) ;
 122     LRESULT WINAPI ibDefWindowProc( HWND hWnd, UINT uiMsg, WPARAM wParam, LPARAM lParam ) ;
 123     VOID    WINAPI ibAdjustWindowRect( HWND hWnd, LPRECT lprc ) ;
 124 #endif // wxUSE_ITSY_BITSY
 125
 126 /*
 127  * Decide what window classes we're going to use
 128  * for this combination of CTl3D/FAFA settings
 129  */
 130
 131 #define STATIC_CLASS     wxT("STATIC")
 132 #define STATIC_FLAGS     (SS_LEFT|WS_CHILD|WS_VISIBLE)
 133 #define CHECK_CLASS      wxT("BUTTON")
 134 #define CHECK_FLAGS      (BS_AUTOCHECKBOX|WS_TABSTOP|WS_CHILD)
 135 #define CHECK_IS_FAFA    FALSE
 136 #define RADIO_CLASS      wxT("BUTTON")
 137 #define RADIO_FLAGS      (BS_AUTORADIOBUTTON|WS_CHILD|WS_VISIBLE)
 138 #define RADIO_SIZE       20
 139 #define RADIO_IS_FAFA    FALSE
 140 #define PURE_WINDOWS
 141 #define GROUP_CLASS      wxT("BUTTON")
 142 #define GROUP_FLAGS      (BS_GROUPBOX|WS_CHILD|WS_VISIBLE)
 143
 144 /*
 145 #define BITCHECK_FLAGS   (FB_BITMAP|FC_BUTTONDRAW|FC_DEFAULT|WS_VISIBLE)
 146 #define BITRADIO_FLAGS   (FC_BUTTONDRAW|FB_BITMAP|FC_RADIO|WS_CHILD|WS_VISIBLE)
 147 */
 148
 149 // ---------------------------------------------------------------------------
 150 // misc macros
 151 // ---------------------------------------------------------------------------
 152
 153 #define MEANING_CHARACTER '0'
 154 #define DEFAULT_ITEM_WIDTH  100
 155 #define DEFAULT_ITEM_HEIGHT 80
 156
 157 // Scale font to get edit control height
 158 //#define EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)    (3*(cy)/2)
 159 #define EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)    (cy+8)
 160
 161 // Generic subclass proc, for panel item moving/sizing and intercept
 162 // EDIT control VK_RETURN messages
 163 extern LONG APIENTRY _EXPORT
 164   wxSubclassedGenericControlProc(WXHWND hWnd, WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
 165
 166 // ---------------------------------------------------------------------------
 167 // useful macros and functions
 168 // ---------------------------------------------------------------------------
 169
 170 // a wrapper macro for ZeroMemory()
 171 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 172 #define wxZeroMemory(obj)   ::ZeroMemory(&obj, sizeof(obj))
 173 #else
 174 #define wxZeroMemory(obj)   memset((void*) & obj, 0, sizeof(obj))
 175 #endif
 176
 177 #if wxUSE_GUI
 178
 179 #include <wx/gdicmn.h>
 180 #include <wx/colour.h>
 181
 182 // make conversion from wxColour and COLORREF a bit less painful
 183 inline COLORREF wxColourToRGB(const wxColour& c)
 184 {
 185     return RGB(c.Red(), c.Green(), c.Blue());
 186 }
 187
 188 inline COLORREF wxColourToPalRGB(const wxColour& c)
 189 {
 190     return PALETTERGB(c.Red(), c.Green(), c.Blue());
 191 }
 192
 193 inline wxColour wxRGBToColour(COLORREF rgb)
 194 {
 195     return wxColour(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
 196 }
 197
 198 inline void wxRGBToColour(wxColour& c, COLORREF rgb)
 199 {
 200     c.Set(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
 201 }
 202
 203 // get the standard colour map for some standard colours - see comment in this
 204 // function to understand why is it needed and when should it be used
 205 //
 206 // it returns a wxCOLORMAP (can't use COLORMAP itself here as comctl32.dll
 207 // might be not included/available) array of size wxSTD_COLOUR_MAX
 208 //
 209 // NB: if you change these colours, update wxBITMAP_STD_COLOURS in the
 210 //     resources as well: it must have the same number of pixels!
 211 enum wxSTD_COLOUR
 212 {
 213     wxSTD_COL_BTNTEXT,
 214     wxSTD_COL_BTNSHADOW,
 215     wxSTD_COL_BTNFACE,
 216     wxSTD_COL_BTNHIGHLIGHT,
 217     wxSTD_COL_MAX
 218 };
 219
 220 struct WXDLLEXPORT wxCOLORMAP
 221 {
 222     COLORREF from, to;
 223 };
 224
 225 // this function is implemented in src/msw/window.cpp
 226 extern wxCOLORMAP *wxGetStdColourMap();
 227
 228 // create a wxRect from Windows RECT
 229 inline wxRect wxRectFromRECT(const RECT& r)
 230 {
 231     return wxRect(r.left, r.top, r.right - r.left, r.bottom - r.top);
 232 }
 233
 234 // copy Windows RECT to our wxRect
 235 inline void wxCopyRECTToRect(const RECT& r, wxRect& rect)
 236 {
 237     rect = wxRectFromRECT(r);
 238 }
 239
 240 // translations between HIMETRIC units (which OLE likes) and pixels (which are
 241 // liked by all the others) - implemented in msw/utilsexc.cpp
 242 extern void HIMETRICToPixel(LONG *x, LONG *y);
 243 extern void PixelToHIMETRIC(LONG *x, LONG *y);
 244
 245 // Windows convention of the mask is opposed to the wxWidgets one, so we need
 246 // to invert the mask each time we pass one/get one to/from Windows
 247 extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w = 0, int h = 0);
 248
 249 // Creates an icon or cursor depending from a bitmap
 250 //
 251 // The bitmap must be valid and it should have a mask. If it doesn't, a default
 252 // mask is created using light grey as the transparent colour.
 253 extern HICON wxBitmapToHICON(const wxBitmap& bmp);
 254
 255 // Same requirments as above apply and the bitmap must also have the correct
 256 // size.
 257 extern
 258 HCURSOR wxBitmapToHCURSOR(const wxBitmap& bmp, int hotSpotX, int hotSpotY);
 259
 260 // get (x, y) from DWORD - notice that HI/LOWORD can *not* be used because they
 261 // will fail on system with multiple monitors where the coords may be negative
 262 //
 263 // these macros are standard now (Win98) but some older headers don't have them
 264 #ifndef GET_X_LPARAM
 265     #define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
 266     #define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
 267 #endif // GET_X_LPARAM
 268
 269 // get the current state of SHIFT/CTRL keys
 270 inline bool wxIsShiftDown()
 271 {
 272 //    return (::GetKeyState(VK_SHIFT) & 0x100) != 0;
 273     // Returns different negative values on WinME and WinNT,
 274     // so simply test for negative value.
 275     return ::GetKeyState(VK_SHIFT) < 0;
 276 }
 277
 278 inline bool wxIsCtrlDown()
 279 {
 280 //    return (::GetKeyState(VK_CONTROL) & 0x100) != 0;
 281     // Returns different negative values on WinME and WinNT,
 282     // so simply test for negative value.
 283     return ::GetKeyState(VK_CONTROL) < 0;
 284 }
 285
 286 // wrapper around GetWindowRect() and GetClientRect() APIs doing error checking
 287 // for Win32
 288 inline RECT wxGetWindowRect(HWND hwnd)
 289 {
 290     RECT rect;
 291
 292     if ( !::GetWindowRect(hwnd, &rect) )
 293     {
 294         wxLogLastError(_T("GetWindowRect"));
 295     }
 296
 297     return rect;
 298 }
 299
 300 inline RECT wxGetClientRect(HWND hwnd)
 301 {
 302     RECT rect;
 303
 304     if ( !::GetClientRect(hwnd, &rect) )
 305     {
 306         wxLogLastError(_T("GetClientRect"));
 307     }
 308
 309     return rect;
 310 }
 311
 312 // ---------------------------------------------------------------------------
 313 // small helper classes
 314 // ---------------------------------------------------------------------------
 315
 316 // a template to make initializing Windows styructs less painful: it zeroes all
 317 // the struct fields and also sets cbSize member to the correct value (and so
 318 // can be only used with structures which have this member...)
 319 template <class T>
 320 struct WinStruct : public T
 321 {
 322     WinStruct()
 323     {
 324         ::ZeroMemory(this, sizeof(T));
 325
 326         // explicit qualification is required here for this to be valid C++
 327         this->cbSize = sizeof(T);
 328     }
 329 };
 330
 331
 332 // create an instance of this class and use it as the HDC for screen, will
 333 // automatically release the DC going out of scope
 334 class ScreenHDC
 335 {
 336 public:
 337     ScreenHDC() { m_hdc = ::GetDC(NULL);    }
 338    ~ScreenHDC() { ::ReleaseDC(NULL, m_hdc); }
 339
 340     operator HDC() const { return m_hdc; }
 341
 342 private:
 343     HDC m_hdc;
 344
 345     DECLARE_NO_COPY_CLASS(ScreenHDC)
 346 };
 347
 348 // the same as ScreenHDC but for window DCs
 349 class WindowHDC
 350 {
 351 public:
 352     WindowHDC(HWND hwnd) { m_hdc = ::GetDC(m_hwnd = hwnd); }
 353    ~WindowHDC() { ::ReleaseDC(m_hwnd, m_hdc); }
 354
 355     operator HDC() const { return m_hdc; }
 356
 357 private:
 358    HWND m_hwnd;
 359    HDC m_hdc;
 360
 361    DECLARE_NO_COPY_CLASS(WindowHDC)
 362 };
 363
 364 // the same as ScreenHDC but for memory DCs: creates the HDC compatible with
 365 // the given one (screen by default) in ctor and destroys it in dtor
 366 class MemoryHDC
 367 {
 368 public:
 369     MemoryHDC(HDC hdc = 0) { m_hdc = ::CreateCompatibleDC(hdc); }
 370    ~MemoryHDC() { ::DeleteDC(m_hdc); }
 371
 372     operator HDC() const { return m_hdc; }
 373
 374 private:
 375     HDC m_hdc;
 376
 377     DECLARE_NO_COPY_CLASS(MemoryHDC)
 378 };
 379
 380 // a class which selects a GDI object into a DC in its ctor and deselects in
 381 // dtor
 382 class SelectInHDC
 383 {
 384 public:
 385     SelectInHDC(HDC hdc, HGDIOBJ hgdiobj) : m_hdc(hdc)
 386         { m_hgdiobj = ::SelectObject(hdc, hgdiobj); }
 387
 388    ~SelectInHDC() { ::SelectObject(m_hdc, m_hgdiobj); }
 389
 390    // return true if the object was successfully selected
 391    operator bool() const { return m_hgdiobj != 0; }
 392
 393 private:
 394    HDC m_hdc;
 395    HGDIOBJ m_hgdiobj;
 396
 397    DECLARE_NO_COPY_CLASS(SelectInHDC)
 398 };
 399
 400 // a class for temporary bitmaps
 401 class CompatibleBitmap
 402 {
 403 public:
 404     CompatibleBitmap(HDC hdc, int w, int h)
 405     {
 406         m_hbmp = ::CreateCompatibleBitmap(hdc, w, h);
 407     }
 408
 409     ~CompatibleBitmap()
 410     {
 411         if ( m_hbmp )
 412             ::DeleteObject(m_hbmp);
 413     }
 414
 415     operator HBITMAP() const { return m_hbmp; }
 416
 417 private:
 418     HBITMAP m_hbmp;
 419 };
 420
 421 // when working with global pointers (which is unfortunately still necessary
 422 // sometimes, e.g. for clipboard) it is important to unlock them exactly as
 423 // many times as we lock them which just asks for using a "smart lock" class
 424 class GlobalPtr
 425 {
 426 public:
 427     GlobalPtr(HGLOBAL hGlobal) : m_hGlobal(hGlobal)
 428     {
 429         m_ptr = GlobalLock(hGlobal);
 430         if ( !m_ptr )
 431         {
 432             wxLogLastError(_T("GlobalLock"));
 433         }
 434     }
 435
 436     ~GlobalPtr()
 437     {
 438         if ( !GlobalUnlock(m_hGlobal) )
 439         {
 440 #ifdef __WXDEBUG__
 441             // this might happen simply because the block became unlocked
 442             DWORD dwLastError = ::GetLastError();
 443             if ( dwLastError != NO_ERROR )
 444             {
 445                 wxLogApiError(_T("GlobalUnlock"), dwLastError);
 446             }
 447 #endif // __WXDEBUG__
 448         }
 449     }
 450
 451     operator void *() const { return m_ptr; }
 452
 453 private:
 454     HGLOBAL m_hGlobal;
 455     void *m_ptr;
 456
 457     DECLARE_NO_COPY_CLASS(GlobalPtr)
 458 };
 459
 460 // register the class when it is first needed and unregister it in dtor
 461 class ClassRegistrar
 462 {
 463 public:
 464     // ctor doesn't register the class, call Initialize() for this
 465     ClassRegistrar() { m_registered = -1; }
 466
 467     // return true if the class is already registered
 468     bool IsInitialized() const { return m_registered != -1; }
 469
 470     // return true if the class had been already registered
 471     bool IsRegistered() const { return m_registered == 1; }
 472
 473     // try to register the class if not done yet, return true on success
 474     bool Register(const WNDCLASS& wc)
 475     {
 476         // we should only be called if we hadn't been initialized yet
 477         wxASSERT_MSG( m_registered == -1,
 478                         _T("calling ClassRegistrar::Register() twice?") );
 479
 480         m_registered = ::RegisterClass(&wc) ? 1 : 0;
 481         if ( !IsRegistered() )
 482         {
 483             wxLogLastError(_T("RegisterClassEx()"));
 484         }
 485         else
 486         {
 487             m_clsname = wc.lpszClassName;
 488         }
 489
 490         return m_registered == 1;
 491     }
 492
 493     // get the name of the registered class (returns empty string if not
 494     // registered)
 495     const wxString& GetName() const { return m_clsname; }
 496
 497     // unregister the class if it had been registered
 498     ~ClassRegistrar()
 499     {
 500         if ( IsRegistered() )
 501         {
 502             if ( !::UnregisterClass(m_clsname, wxhInstance) )
 503             {
 504                 wxLogLastError(_T("UnregisterClass"));
 505             }
 506         }
 507     }
 508
 509 private:
 510     // initial value is -1 which means that we hadn't tried registering the
 511     // class yet, it becomes true or false (1 or 0) when Initialize() is called
 512     int m_registered;
 513
 514     // the name of the class, only non empty if it had been registered
 515     wxString m_clsname;
 516 };
 517
 518 // ---------------------------------------------------------------------------
 519 // macros to make casting between WXFOO and FOO a bit easier: the GetFoo()
 520 // returns Foo cast to the Windows type for oruselves, while GetFooOf() takes
 521 // an argument which should be a pointer or reference to the object of the
 522 // corresponding class (this depends on the macro)
 523 // ---------------------------------------------------------------------------
 524
 525 #define GetHwnd()               ((HWND)GetHWND())
 526 #define GetHwndOf(win)          ((HWND)((win)->GetHWND()))
 527 // old name
 528 #define GetWinHwnd              GetHwndOf
 529
 530 #define GetHdc()                ((HDC)GetHDC())
 531 #define GetHdcOf(dc)            ((HDC)(dc).GetHDC())
 532
 533 #define GetHbitmap()            ((HBITMAP)GetHBITMAP())
 534 #define GetHbitmapOf(bmp)       ((HBITMAP)(bmp).GetHBITMAP())
 535
 536 #define GetHicon()              ((HICON)GetHICON())
 537 #define GetHiconOf(icon)        ((HICON)(icon).GetHICON())
 538
 539 #define GetHaccel()             ((HACCEL)GetHACCEL())
 540 #define GetHaccelOf(table)      ((HACCEL)((table).GetHACCEL()))
 541
 542 #define GetHbrush()             ((HPEN)GetResourceHandle())
 543 #define GetHbrushOf(brush)      ((HPEN)(brush).GetResourceHandle())
 544
 545 #define GetHmenu()              ((HMENU)GetHMenu())
 546 #define GetHmenuOf(menu)        ((HMENU)menu->GetHMenu())
 547
 548 #define GetHcursor()            ((HCURSOR)GetHCURSOR())
 549 #define GetHcursorOf(cursor)    ((HCURSOR)(cursor).GetHCURSOR())
 550
 551 #define GetHfont()              ((HFONT)GetHFONT())
 552 #define GetHfontOf(font)        ((HFONT)(font).GetHFONT())
 553
 554 #define GetHpalette()           ((HPALETTE)GetHPALETTE())
 555 #define GetHpaletteOf(pal)      ((HPALETTE)(pal).GetHPALETTE())
 556
 557 #define GetHpen()               ((HPEN)GetResourceHandle())
 558 #define GetHpenOf(pen)          ((HPEN)(pen).GetResourceHandle())
 559
 560 #define GetHrgn()               ((HRGN)GetHRGN())
 561 #define GetHrgnOf(rgn)          ((HRGN)(rgn).GetHRGN())
 562
 563 #endif // wxUSE_GUI
 564
 565 // ---------------------------------------------------------------------------
 566 // global functions
 567 // ---------------------------------------------------------------------------
 568
 569 extern "C"
 570 {
 571     WXDLLIMPEXP_BASE HINSTANCE wxGetInstance();
 572 }
 573
 574 WXDLLIMPEXP_BASE void wxSetInstance(HINSTANCE hInst);
 575
 576 // return the full path of the given module
 577 inline wxString wxGetFullModuleName(HMODULE hmod)
 578 {
 579     wxString fullname;
 580     if ( !::GetModuleFileName
 581             (
 582                 hmod,
 583                 wxStringBuffer(fullname, MAX_PATH),
 584                 MAX_PATH
 585             ) )
 586     {
 587         wxLogLastError(_T("GetModuleFileName"));
 588     }
 589
 590     return fullname;
 591 }
 592
 593 // return the full path of the program file
 594 inline wxString wxGetFullModuleName()
 595 {
 596     return wxGetFullModuleName((HMODULE)wxGetInstance());
 597 }
 598
 599 #if wxUSE_GUI
 600
 601 // cursor stuff
 602 extern HCURSOR wxGetCurrentBusyCursor();    // from msw/utils.cpp
 603 extern const wxCursor *wxGetGlobalCursor(); // from msw/cursor.cpp
 604
 605 WXDLLEXPORT void wxGetCharSize(WXHWND wnd, int *x, int *y, const wxFont& the_font);
 606 WXDLLEXPORT void wxFillLogFont(LOGFONT *logFont, const wxFont *font);
 607 WXDLLEXPORT wxFont wxCreateFontFromLogFont(const LOGFONT *logFont);
 608 WXDLLEXPORT wxFontEncoding wxGetFontEncFromCharSet(int charset);
 609
 610 WXDLLEXPORT void wxSliderEvent(WXHWND control, WXWORD wParam, WXWORD pos);
 611 WXDLLEXPORT void wxScrollBarEvent(WXHWND hbar, WXWORD wParam, WXWORD pos);
 612
 613 // Find maximum size of window/rectangle
 614 extern WXDLLEXPORT void wxFindMaxSize(WXHWND hwnd, RECT *rect);
 615
 616 // Safely get the window text (i.e. without using fixed size buffer)
 617 extern WXDLLEXPORT wxString wxGetWindowText(WXHWND hWnd);
 618
 619 // get the window class name
 620 extern WXDLLEXPORT wxString wxGetWindowClass(WXHWND hWnd);
 621
 622 // get the window id (should be unsigned, hence this is not wxWindowID which
 623 // is, for mainly historical reasons, signed)
 624 extern WXDLLEXPORT WXWORD wxGetWindowId(WXHWND hWnd);
 625
 626 // check if hWnd's WNDPROC is wndProc. Return true if yes, false if they are
 627 // different
 628 extern WXDLLEXPORT bool wxCheckWindowWndProc(WXHWND hWnd, WXFARPROC wndProc);
 629
 630 // Does this window style specify any border?
 631 inline bool wxStyleHasBorder(long style)
 632 {
 633     return (style & (wxSIMPLE_BORDER | wxRAISED_BORDER |
 634                      wxSUNKEN_BORDER | wxDOUBLE_BORDER)) != 0;
 635 }
 636
 637 // ----------------------------------------------------------------------------
 638 // functions mapping HWND to wxWindow
 639 // ----------------------------------------------------------------------------
 640
 641 // this function simply checks whether the given hWnd corresponds to a wxWindow
 642 // and returns either that window if it does or NULL otherwise
 643 extern WXDLLEXPORT wxWindow* wxFindWinFromHandle(WXHWND hWnd);
 644
 645 // find the window for HWND which is part of some wxWindow, i.e. unlike
 646 // wxFindWinFromHandle() above it will also work for "sub controls" of a
 647 // wxWindow.
 648 //
 649 // returns the wxWindow corresponding to the given HWND or NULL.
 650 extern WXDLLEXPORT wxWindow *wxGetWindowFromHWND(WXHWND hwnd);
 651
 652 // Get the size of an icon
 653 extern WXDLLEXPORT wxSize wxGetHiconSize(HICON hicon);
 654
 655 // Lines are drawn differently for WinCE and regular WIN32
 656 WXDLLEXPORT void wxDrawLine(HDC hdc, int x1, int y1, int x2, int y2);
 657
 658 // ----------------------------------------------------------------------------
 659 // 32/64 bit helpers
 660 // ----------------------------------------------------------------------------
 661
 662 #ifdef __WIN64__
 663
 664 inline void *wxGetWindowProc(HWND hwnd)
 665 {
 666     return (void *)::GetWindowLongPtr(hwnd, GWLP_WNDPROC);
 667 }
 668
 669 inline void *wxGetWindowUserData(HWND hwnd)
 670 {
 671     return (void *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
 672 }
 673
 674 inline WNDPROC wxSetWindowProc(HWND hwnd, WNDPROC func)
 675 {
 676     return (WNDPROC)::SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)func);
 677 }
 678
 679 inline void *wxSetWindowUserData(HWND hwnd, void *data)
 680 {
 681     return (void *)::SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)data);
 682 }
 683
 684 #else // __WIN32__
 685
 686 #ifdef __VISUALC__
 687     // strangely enough, VC++ 7.1 gives warnings about 32 -> 64 bit conversions
 688     // in the functions below, even in spite of the explicit casts
 689     #pragma warning(disable:4311)
 690     #pragma warning(disable:4312)
 691 #endif
 692
 693 inline void *wxGetWindowProc(HWND hwnd)
 694 {
 695     return (void *)::GetWindowLong(hwnd, GWL_WNDPROC);
 696 }
 697
 698 inline void *wxGetWindowUserData(HWND hwnd)
 699 {
 700     return (void *)::GetWindowLong(hwnd, GWL_USERDATA);
 701 }
 702
 703 inline WNDPROC wxSetWindowProc(HWND hwnd, WNDPROC func)
 704 {
 705     return (WNDPROC)::SetWindowLong(hwnd, GWL_WNDPROC, (LONG)func);
 706 }
 707
 708 inline void *wxSetWindowUserData(HWND hwnd, void *data)
 709 {
 710     return (void *)::SetWindowLong(hwnd, GWL_USERDATA, (LONG)data);
 711 }
 712
 713 #ifdef __VISUALC__
 714     #pragma warning(default:4311)
 715     #pragma warning(default:4312)
 716 #endif
 717
 718 #endif // __WIN64__/__WIN32__
 719
 720 #endif // wxUSE_GUI
 721
 722 #endif
 723     // _WX_PRIVATE_H_