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 // This one is a macro so that it can be tested with #ifdef, it will be
 178 // undefined if it cannot be implemented for a given compiler.
 179 // Vc++, bcc, dmc, ow, mingw, codewarrior (and rsxnt) have _get_osfhandle.
 180 // Cygwin has get_osfhandle. Others are currently unknown, e.g. Salford,
 181 // Intel, Visual Age.
 182 #if defined(__WXWINCE__)
 183     #define wxGetOSFHandle(fd) ((HANDLE)fd)
 184 #elif defined(__CYGWIN__)
 185     #define wxGetOSFHandle(fd) ((HANDLE)get_osfhandle(fd))
 186 #elif defined(__VISUALC__) \
 187    || defined(__BORLANDC__) \
 188    || defined(__DMC__) \
 189    || (defined(__GNUWIN32__) || defined(__MINGW32__)) \
 190    || (defined(__MWERKS__) && defined(__MSL__))
 191     #define wxGetOSFHandle(fd) ((HANDLE)_get_osfhandle(fd))
 192 #endif
 193
 194 #if wxUSE_GUI
 195
 196 #include <wx/gdicmn.h>
 197 #include <wx/colour.h>
 198
 199 // make conversion from wxColour and COLORREF a bit less painful
 200 inline COLORREF wxColourToRGB(const wxColour& c)
 201 {
 202     return RGB(c.Red(), c.Green(), c.Blue());
 203 }
 204
 205 inline COLORREF wxColourToPalRGB(const wxColour& c)
 206 {
 207     return PALETTERGB(c.Red(), c.Green(), c.Blue());
 208 }
 209
 210 inline wxColour wxRGBToColour(COLORREF rgb)
 211 {
 212     return wxColour(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
 213 }
 214
 215 inline void wxRGBToColour(wxColour& c, COLORREF rgb)
 216 {
 217     c.Set(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
 218 }
 219
 220 // get the standard colour map for some standard colours - see comment in this
 221 // function to understand why is it needed and when should it be used
 222 //
 223 // it returns a wxCOLORMAP (can't use COLORMAP itself here as comctl32.dll
 224 // might be not included/available) array of size wxSTD_COLOUR_MAX
 225 //
 226 // NB: if you change these colours, update wxBITMAP_STD_COLOURS in the
 227 //     resources as well: it must have the same number of pixels!
 228 enum wxSTD_COLOUR
 229 {
 230     wxSTD_COL_BTNTEXT,
 231     wxSTD_COL_BTNSHADOW,
 232     wxSTD_COL_BTNFACE,
 233     wxSTD_COL_BTNHIGHLIGHT,
 234     wxSTD_COL_MAX
 235 };
 236
 237 struct WXDLLEXPORT wxCOLORMAP
 238 {
 239     COLORREF from, to;
 240 };
 241
 242 // this function is implemented in src/msw/window.cpp
 243 extern wxCOLORMAP *wxGetStdColourMap();
 244
 245 // create a wxRect from Windows RECT
 246 inline wxRect wxRectFromRECT(const RECT& r)
 247 {
 248     return wxRect(r.left, r.top, r.right - r.left, r.bottom - r.top);
 249 }
 250
 251 // copy Windows RECT to our wxRect
 252 inline void wxCopyRECTToRect(const RECT& r, wxRect& rect)
 253 {
 254     rect = wxRectFromRECT(r);
 255 }
 256
 257 // translations between HIMETRIC units (which OLE likes) and pixels (which are
 258 // liked by all the others) - implemented in msw/utilsexc.cpp
 259 extern void HIMETRICToPixel(LONG *x, LONG *y);
 260 extern void PixelToHIMETRIC(LONG *x, LONG *y);
 261
 262 // Windows convention of the mask is opposed to the wxWidgets one, so we need
 263 // to invert the mask each time we pass one/get one to/from Windows
 264 extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w = 0, int h = 0);
 265
 266 // Creates an icon or cursor depending from a bitmap
 267 //
 268 // The bitmap must be valid and it should have a mask. If it doesn't, a default
 269 // mask is created using light grey as the transparent colour.
 270 extern HICON wxBitmapToHICON(const wxBitmap& bmp);
 271
 272 // Same requirments as above apply and the bitmap must also have the correct
 273 // size.
 274 extern
 275 HCURSOR wxBitmapToHCURSOR(const wxBitmap& bmp, int hotSpotX, int hotSpotY);
 276
 277 // get (x, y) from DWORD - notice that HI/LOWORD can *not* be used because they
 278 // will fail on system with multiple monitors where the coords may be negative
 279 //
 280 // these macros are standard now (Win98) but some older headers don't have them
 281 #ifndef GET_X_LPARAM
 282     #define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
 283     #define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
 284 #endif // GET_X_LPARAM
 285
 286 // get the current state of SHIFT/CTRL keys
 287 inline bool wxIsShiftDown()
 288 {
 289 //    return (::GetKeyState(VK_SHIFT) & 0x100) != 0;
 290     // Returns different negative values on WinME and WinNT,
 291     // so simply test for negative value.
 292     return ::GetKeyState(VK_SHIFT) < 0;
 293 }
 294
 295 inline bool wxIsCtrlDown()
 296 {
 297 //    return (::GetKeyState(VK_CONTROL) & 0x100) != 0;
 298     // Returns different negative values on WinME and WinNT,
 299     // so simply test for negative value.
 300     return ::GetKeyState(VK_CONTROL) < 0;
 301 }
 302
 303 // wrapper around GetWindowRect() and GetClientRect() APIs doing error checking
 304 // for Win32
 305 inline RECT wxGetWindowRect(HWND hwnd)
 306 {
 307     RECT rect;
 308
 309     if ( !::GetWindowRect(hwnd, &rect) )
 310     {
 311         wxLogLastError(_T("GetWindowRect"));
 312     }
 313
 314     return rect;
 315 }
 316
 317 inline RECT wxGetClientRect(HWND hwnd)
 318 {
 319     RECT rect;
 320
 321     if ( !::GetClientRect(hwnd, &rect) )
 322     {
 323         wxLogLastError(_T("GetClientRect"));
 324     }
 325
 326     return rect;
 327 }
 328
 329 // ---------------------------------------------------------------------------
 330 // small helper classes
 331 // ---------------------------------------------------------------------------
 332
 333 // a template to make initializing Windows styructs less painful: it zeroes all
 334 // the struct fields and also sets cbSize member to the correct value (and so
 335 // can be only used with structures which have this member...)
 336 template <class T>
 337 struct WinStruct : public T
 338 {
 339     WinStruct()
 340     {
 341         ::ZeroMemory(this, sizeof(T));
 342
 343         // explicit qualification is required here for this to be valid C++
 344         this->cbSize = sizeof(T);
 345     }
 346 };
 347
 348
 349 // create an instance of this class and use it as the HDC for screen, will
 350 // automatically release the DC going out of scope
 351 class ScreenHDC
 352 {
 353 public:
 354     ScreenHDC() { m_hdc = ::GetDC(NULL);    }
 355    ~ScreenHDC() { ::ReleaseDC(NULL, m_hdc); }
 356
 357     operator HDC() const { return m_hdc; }
 358
 359 private:
 360     HDC m_hdc;
 361
 362     DECLARE_NO_COPY_CLASS(ScreenHDC)
 363 };
 364
 365 // the same as ScreenHDC but for window DCs
 366 class WindowHDC
 367 {
 368 public:
 369     WindowHDC(HWND hwnd) { m_hdc = ::GetDC(m_hwnd = hwnd); }
 370    ~WindowHDC() { ::ReleaseDC(m_hwnd, m_hdc); }
 371
 372     operator HDC() const { return m_hdc; }
 373
 374 private:
 375    HWND m_hwnd;
 376    HDC m_hdc;
 377
 378    DECLARE_NO_COPY_CLASS(WindowHDC)
 379 };
 380
 381 // the same as ScreenHDC but for memory DCs: creates the HDC compatible with
 382 // the given one (screen by default) in ctor and destroys it in dtor
 383 class MemoryHDC
 384 {
 385 public:
 386     MemoryHDC(HDC hdc = 0) { m_hdc = ::CreateCompatibleDC(hdc); }
 387    ~MemoryHDC() { ::DeleteDC(m_hdc); }
 388
 389     operator HDC() const { return m_hdc; }
 390
 391 private:
 392     HDC m_hdc;
 393
 394     DECLARE_NO_COPY_CLASS(MemoryHDC)
 395 };
 396
 397 // a class which selects a GDI object into a DC in its ctor and deselects in
 398 // dtor
 399 class SelectInHDC
 400 {
 401 public:
 402     SelectInHDC(HDC hdc, HGDIOBJ hgdiobj) : m_hdc(hdc)
 403         { m_hgdiobj = ::SelectObject(hdc, hgdiobj); }
 404
 405    ~SelectInHDC() { ::SelectObject(m_hdc, m_hgdiobj); }
 406
 407    // return true if the object was successfully selected
 408    operator bool() const { return m_hgdiobj != 0; }
 409
 410 private:
 411    HDC m_hdc;
 412    HGDIOBJ m_hgdiobj;
 413
 414    DECLARE_NO_COPY_CLASS(SelectInHDC)
 415 };
 416
 417 // a class for temporary bitmaps
 418 class CompatibleBitmap
 419 {
 420 public:
 421     CompatibleBitmap(HDC hdc, int w, int h)
 422     {
 423         m_hbmp = ::CreateCompatibleBitmap(hdc, w, h);
 424     }
 425
 426     ~CompatibleBitmap()
 427     {
 428         if ( m_hbmp )
 429             ::DeleteObject(m_hbmp);
 430     }
 431
 432     operator HBITMAP() const { return m_hbmp; }
 433
 434 private:
 435     HBITMAP m_hbmp;
 436 };
 437
 438 // when working with global pointers (which is unfortunately still necessary
 439 // sometimes, e.g. for clipboard) it is important to unlock them exactly as
 440 // many times as we lock them which just asks for using a "smart lock" class
 441 class GlobalPtr
 442 {
 443 public:
 444     GlobalPtr(HGLOBAL hGlobal) : m_hGlobal(hGlobal)
 445     {
 446         m_ptr = GlobalLock(hGlobal);
 447         if ( !m_ptr )
 448         {
 449             wxLogLastError(_T("GlobalLock"));
 450         }
 451     }
 452
 453     ~GlobalPtr()
 454     {
 455         if ( !GlobalUnlock(m_hGlobal) )
 456         {
 457 #ifdef __WXDEBUG__
 458             // this might happen simply because the block became unlocked
 459             DWORD dwLastError = ::GetLastError();
 460             if ( dwLastError != NO_ERROR )
 461             {
 462                 wxLogApiError(_T("GlobalUnlock"), dwLastError);
 463             }
 464 #endif // __WXDEBUG__
 465         }
 466     }
 467
 468     operator void *() const { return m_ptr; }
 469
 470 private:
 471     HGLOBAL m_hGlobal;
 472     void *m_ptr;
 473
 474     DECLARE_NO_COPY_CLASS(GlobalPtr)
 475 };
 476
 477 // register the class when it is first needed and unregister it in dtor
 478 class ClassRegistrar
 479 {
 480 public:
 481     // ctor doesn't register the class, call Initialize() for this
 482     ClassRegistrar() { m_registered = -1; }
 483
 484     // return true if the class is already registered
 485     bool IsInitialized() const { return m_registered != -1; }
 486
 487     // return true if the class had been already registered
 488     bool IsRegistered() const { return m_registered == 1; }
 489
 490     // try to register the class if not done yet, return true on success
 491     bool Register(const WNDCLASS& wc)
 492     {
 493         // we should only be called if we hadn't been initialized yet
 494         wxASSERT_MSG( m_registered == -1,
 495                         _T("calling ClassRegistrar::Register() twice?") );
 496
 497         m_registered = ::RegisterClass(&wc) ? 1 : 0;
 498         if ( !IsRegistered() )
 499         {
 500             wxLogLastError(_T("RegisterClassEx()"));
 501         }
 502         else
 503         {
 504             m_clsname = wc.lpszClassName;
 505         }
 506
 507         return m_registered == 1;
 508     }
 509
 510     // get the name of the registered class (returns empty string if not
 511     // registered)
 512     const wxString& GetName() const { return m_clsname; }
 513
 514     // unregister the class if it had been registered
 515     ~ClassRegistrar()
 516     {
 517         if ( IsRegistered() )
 518         {
 519             if ( !::UnregisterClass(m_clsname, wxhInstance) )
 520             {
 521                 wxLogLastError(_T("UnregisterClass"));
 522             }
 523         }
 524     }
 525
 526 private:
 527     // initial value is -1 which means that we hadn't tried registering the
 528     // class yet, it becomes true or false (1 or 0) when Initialize() is called
 529     int m_registered;
 530
 531     // the name of the class, only non empty if it had been registered
 532     wxString m_clsname;
 533 };
 534
 535 // ---------------------------------------------------------------------------
 536 // macros to make casting between WXFOO and FOO a bit easier: the GetFoo()
 537 // returns Foo cast to the Windows type for oruselves, while GetFooOf() takes
 538 // an argument which should be a pointer or reference to the object of the
 539 // corresponding class (this depends on the macro)
 540 // ---------------------------------------------------------------------------
 541
 542 #define GetHwnd()               ((HWND)GetHWND())
 543 #define GetHwndOf(win)          ((HWND)((win)->GetHWND()))
 544 // old name
 545 #define GetWinHwnd              GetHwndOf
 546
 547 #define GetHdc()                ((HDC)GetHDC())
 548 #define GetHdcOf(dc)            ((HDC)(dc).GetHDC())
 549
 550 #define GetHbitmap()            ((HBITMAP)GetHBITMAP())
 551 #define GetHbitmapOf(bmp)       ((HBITMAP)(bmp).GetHBITMAP())
 552
 553 #define GetHicon()              ((HICON)GetHICON())
 554 #define GetHiconOf(icon)        ((HICON)(icon).GetHICON())
 555
 556 #define GetHaccel()             ((HACCEL)GetHACCEL())
 557 #define GetHaccelOf(table)      ((HACCEL)((table).GetHACCEL()))
 558
 559 #define GetHbrush()             ((HPEN)GetResourceHandle())
 560 #define GetHbrushOf(brush)      ((HPEN)(brush).GetResourceHandle())
 561
 562 #define GetHmenu()              ((HMENU)GetHMenu())
 563 #define GetHmenuOf(menu)        ((HMENU)menu->GetHMenu())
 564
 565 #define GetHcursor()            ((HCURSOR)GetHCURSOR())
 566 #define GetHcursorOf(cursor)    ((HCURSOR)(cursor).GetHCURSOR())
 567
 568 #define GetHfont()              ((HFONT)GetHFONT())
 569 #define GetHfontOf(font)        ((HFONT)(font).GetHFONT())
 570
 571 #define GetHpalette()           ((HPALETTE)GetHPALETTE())
 572 #define GetHpaletteOf(pal)      ((HPALETTE)(pal).GetHPALETTE())
 573
 574 #define GetHpen()               ((HPEN)GetResourceHandle())
 575 #define GetHpenOf(pen)          ((HPEN)(pen).GetResourceHandle())
 576
 577 #define GetHrgn()               ((HRGN)GetHRGN())
 578 #define GetHrgnOf(rgn)          ((HRGN)(rgn).GetHRGN())
 579
 580 #endif // wxUSE_GUI
 581
 582 // ---------------------------------------------------------------------------
 583 // global functions
 584 // ---------------------------------------------------------------------------
 585
 586 extern "C"
 587 {
 588     WXDLLIMPEXP_BASE HINSTANCE wxGetInstance();
 589 }
 590
 591 WXDLLIMPEXP_BASE void wxSetInstance(HINSTANCE hInst);
 592
 593 // return the full path of the given module
 594 inline wxString wxGetFullModuleName(HMODULE hmod)
 595 {
 596     wxString fullname;
 597     if ( !::GetModuleFileName
 598             (
 599                 hmod,
 600                 wxStringBuffer(fullname, MAX_PATH),
 601                 MAX_PATH
 602             ) )
 603     {
 604         wxLogLastError(_T("GetModuleFileName"));
 605     }
 606
 607     return fullname;
 608 }
 609
 610 // return the full path of the program file
 611 inline wxString wxGetFullModuleName()
 612 {
 613     return wxGetFullModuleName((HMODULE)wxGetInstance());
 614 }
 615
 616 #if wxUSE_GUI
 617
 618 // cursor stuff
 619 extern HCURSOR wxGetCurrentBusyCursor();    // from msw/utils.cpp
 620 extern const wxCursor *wxGetGlobalCursor(); // from msw/cursor.cpp
 621
 622 WXDLLEXPORT void wxGetCharSize(WXHWND wnd, int *x, int *y, const wxFont& the_font);
 623 WXDLLEXPORT void wxFillLogFont(LOGFONT *logFont, const wxFont *font);
 624 WXDLLEXPORT wxFont wxCreateFontFromLogFont(const LOGFONT *logFont);
 625 WXDLLEXPORT wxFontEncoding wxGetFontEncFromCharSet(int charset);
 626
 627 WXDLLEXPORT void wxSliderEvent(WXHWND control, WXWORD wParam, WXWORD pos);
 628 WXDLLEXPORT void wxScrollBarEvent(WXHWND hbar, WXWORD wParam, WXWORD pos);
 629
 630 // Find maximum size of window/rectangle
 631 extern WXDLLEXPORT void wxFindMaxSize(WXHWND hwnd, RECT *rect);
 632
 633 // Safely get the window text (i.e. without using fixed size buffer)
 634 extern WXDLLEXPORT wxString wxGetWindowText(WXHWND hWnd);
 635
 636 // get the window class name
 637 extern WXDLLEXPORT wxString wxGetWindowClass(WXHWND hWnd);
 638
 639 // get the window id (should be unsigned, hence this is not wxWindowID which
 640 // is, for mainly historical reasons, signed)
 641 extern WXDLLEXPORT WXWORD wxGetWindowId(WXHWND hWnd);
 642
 643 // check if hWnd's WNDPROC is wndProc. Return true if yes, false if they are
 644 // different
 645 extern WXDLLEXPORT bool wxCheckWindowWndProc(WXHWND hWnd, WXFARPROC wndProc);
 646
 647 // Does this window style specify any border?
 648 inline bool wxStyleHasBorder(long style)
 649 {
 650     return (style & (wxSIMPLE_BORDER | wxRAISED_BORDER |
 651                      wxSUNKEN_BORDER | wxDOUBLE_BORDER)) != 0;
 652 }
 653
 654 // ----------------------------------------------------------------------------
 655 // functions mapping HWND to wxWindow
 656 // ----------------------------------------------------------------------------
 657
 658 // this function simply checks whether the given hWnd corresponds to a wxWindow
 659 // and returns either that window if it does or NULL otherwise
 660 extern WXDLLEXPORT wxWindow* wxFindWinFromHandle(WXHWND hWnd);
 661
 662 // find the window for HWND which is part of some wxWindow, i.e. unlike
 663 // wxFindWinFromHandle() above it will also work for "sub controls" of a
 664 // wxWindow.
 665 //
 666 // returns the wxWindow corresponding to the given HWND or NULL.
 667 extern WXDLLEXPORT wxWindow *wxGetWindowFromHWND(WXHWND hwnd);
 668
 669 // Get the size of an icon
 670 extern WXDLLEXPORT wxSize wxGetHiconSize(HICON hicon);
 671
 672 // Lines are drawn differently for WinCE and regular WIN32
 673 WXDLLEXPORT void wxDrawLine(HDC hdc, int x1, int y1, int x2, int y2);
 674
 675 // ----------------------------------------------------------------------------
 676 // 32/64 bit helpers
 677 // ----------------------------------------------------------------------------
 678
 679 #ifdef __WIN64__
 680
 681 inline void *wxGetWindowProc(HWND hwnd)
 682 {
 683     return (void *)::GetWindowLongPtr(hwnd, GWLP_WNDPROC);
 684 }
 685
 686 inline void *wxGetWindowUserData(HWND hwnd)
 687 {
 688     return (void *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
 689 }
 690
 691 inline WNDPROC wxSetWindowProc(HWND hwnd, WNDPROC func)
 692 {
 693     return (WNDPROC)::SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)func);
 694 }
 695
 696 inline void *wxSetWindowUserData(HWND hwnd, void *data)
 697 {
 698     return (void *)::SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)data);
 699 }
 700
 701 #else // __WIN32__
 702
 703 #ifdef __VISUALC__
 704     // strangely enough, VC++ 7.1 gives warnings about 32 -> 64 bit conversions
 705     // in the functions below, even in spite of the explicit casts
 706     #pragma warning(disable:4311)
 707     #pragma warning(disable:4312)
 708 #endif
 709
 710 inline void *wxGetWindowProc(HWND hwnd)
 711 {
 712     return (void *)::GetWindowLong(hwnd, GWL_WNDPROC);
 713 }
 714
 715 inline void *wxGetWindowUserData(HWND hwnd)
 716 {
 717     return (void *)::GetWindowLong(hwnd, GWL_USERDATA);
 718 }
 719
 720 inline WNDPROC wxSetWindowProc(HWND hwnd, WNDPROC func)
 721 {
 722     return (WNDPROC)::SetWindowLong(hwnd, GWL_WNDPROC, (LONG)func);
 723 }
 724
 725 inline void *wxSetWindowUserData(HWND hwnd, void *data)
 726 {
 727     return (void *)::SetWindowLong(hwnd, GWL_USERDATA, (LONG)data);
 728 }
 729
 730 #ifdef __VISUALC__
 731     #pragma warning(default:4311)
 732     #pragma warning(default:4312)
 733 #endif
 734
 735 #endif // __WIN64__/__WIN32__
 736
 737 #endif // wxUSE_GUI
 738
 739 #endif
 740     // _WX_PRIVATE_H_