src/msw/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/textctrl.cpp
   3 // Purpose:     wxTextCtrl
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 #ifdef __GNUG__
  17     #pragma implementation "textctrl.h"
  18 #endif
  19
  20 // ----------------------------------------------------------------------------
  21 // headers
  22 // ----------------------------------------------------------------------------
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/textctrl.h"
  33     #include "wx/settings.h"
  34     #include "wx/brush.h"
  35     #include "wx/utils.h"
  36     #include "wx/intl.h"
  37     #include "wx/log.h"
  38     #include "wx/app.h"
  39 #endif
  40
  41 #include "wx/module.h"
  42
  43 #if wxUSE_CLIPBOARD
  44     #include "wx/clipbrd.h"
  45 #endif
  46
  47 #include "wx/textfile.h"
  48
  49 #include <windowsx.h>
  50
  51 #include "wx/msw/private.h"
  52
  53 #include <string.h>
  54 #include <stdlib.h>
  55 #include <sys/types.h>
  56
  57 #if wxUSE_IOSTREAMH
  58 #   include <fstream.h>
  59 #else
  60 #   include <fstream>
  61 #endif
  62
  63 #if wxUSE_RICHEDIT && !defined(__GNUWIN32_OLD__)
  64     #include <richedit.h>
  65 #endif
  66
  67 // ----------------------------------------------------------------------------
  68 // private classes
  69 // ----------------------------------------------------------------------------
  70
  71 #if wxUSE_RICHEDIT
  72
  73 // this module initializes RichEdit DLL if needed
  74 class wxRichEditModule : public wxModule
  75 {
  76 public:
  77     virtual bool OnInit();
  78     virtual void OnExit();
  79
  80     // get the version currently loaded, -1 if none
  81     static int GetLoadedVersion() { return ms_verRichEdit; }
  82
  83     // load the richedit DLL of at least of required version
  84     static bool Load(int version = 1);
  85
  86 private:
  87     // the handle to richedit DLL and the version of the DLL loaded
  88     static HINSTANCE ms_hRichEdit;
  89
  90     // the DLL version loaded or -1 if none
  91     static int ms_verRichEdit;
  92
  93     DECLARE_DYNAMIC_CLASS(wxRichEditModule)
  94 };
  95
  96 HINSTANCE wxRichEditModule::ms_hRichEdit = (HINSTANCE)NULL;
  97 int       wxRichEditModule::ms_verRichEdit = -1;
  98
  99 IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule)
 100
 101 #endif // wxUSE_RICHEDIT
 102
 103 // ----------------------------------------------------------------------------
 104 // event tables and other macros
 105 // ----------------------------------------------------------------------------
 106
 107 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)
 108
 109 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 110     EVT_CHAR(wxTextCtrl::OnChar)
 111     EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
 112
 113     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 114     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 115     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 116     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 117     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 118
 119     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 120     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 121     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 122     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 123     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 124 #ifdef __WIN16__
 125     EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground)
 126 #endif
 127 END_EVENT_TABLE()
 128
 129 // ============================================================================
 130 // implementation
 131 // ============================================================================
 132
 133 // ----------------------------------------------------------------------------
 134 // creation
 135 // ----------------------------------------------------------------------------
 136
 137 wxTextCtrl::wxTextCtrl()
 138 {
 139 #if wxUSE_RICHEDIT
 140     m_isRich = FALSE;
 141 #endif
 142 }
 143
 144 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
 145                         const wxString& value,
 146                         const wxPoint& pos,
 147                         const wxSize& size,
 148                         long style,
 149                         const wxValidator& validator,
 150                         const wxString& name)
 151 {
 152     // base initialization
 153     if ( !CreateBase(parent, id, pos, size, style, validator, name) )
 154         return FALSE;
 155
 156     if ( parent )
 157         parent->AddChild(this);
 158
 159     // translate wxWin style flags to MSW ones, checking for consistency while
 160     // doing it
 161     long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP;
 162
 163     if ( m_windowStyle & wxCLIP_SIBLINGS )
 164         msStyle |= WS_CLIPSIBLINGS;
 165
 166     if ( m_windowStyle & wxTE_MULTILINE )
 167     {
 168         wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER),
 169                       wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") );
 170
 171         msStyle |= ES_MULTILINE | ES_WANTRETURN;
 172         if ((m_windowStyle & wxTE_NO_VSCROLL) == 0)
 173             msStyle |= WS_VSCROLL;
 174         m_windowStyle |= wxTE_PROCESS_ENTER;
 175     }
 176     else
 177         msStyle |= ES_AUTOHSCROLL;
 178
 179     if (m_windowStyle & wxHSCROLL)
 180         msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL);
 181
 182     if (m_windowStyle & wxTE_READONLY)
 183         msStyle |= ES_READONLY;
 184
 185     if (m_windowStyle & wxTE_PASSWORD) // hidden input
 186         msStyle |= ES_PASSWORD;
 187
 188    if (m_windowStyle & wxTE_AUTO_SCROLL)
 189         msStyle |=  ES_AUTOHSCROLL;
 190
 191
 192     // we always want the characters and the arrows
 193     m_lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS;
 194
 195     // we may have several different cases:
 196     // 1. normal case: both TAB and ENTER are used for dialog navigation
 197     // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next
 198     //    control in the dialog
 199     // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation
 200     // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to
 201     //    the next control
 202     if ( m_windowStyle & wxTE_PROCESS_ENTER )
 203         m_lDlgCode |= DLGC_WANTMESSAGE;
 204     if ( m_windowStyle & wxTE_PROCESS_TAB )
 205         m_lDlgCode |= DLGC_WANTTAB;
 206
 207     // do create the control - either an EDIT or RICHEDIT
 208     wxString windowClass = wxT("EDIT");
 209
 210 #if wxUSE_RICHEDIT
 211     if ( m_windowStyle & wxTE_RICH )
 212     {
 213         static bool s_errorGiven = FALSE;   // MT-FIXME
 214
 215         // only give the error msg once if the DLL can't be loaded
 216         if ( !s_errorGiven )
 217         {
 218             // first try to load the RichEdit DLL (will do nothing if already
 219             // done)
 220             if ( !wxRichEditModule::Load() )
 221             {
 222                 wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll"));
 223
 224                 s_errorGiven = TRUE;
 225             }
 226         }
 227
 228         if ( s_errorGiven )
 229         {
 230             m_isRich = FALSE;
 231         }
 232         else
 233         {
 234             msStyle |= ES_AUTOVSCROLL;
 235             m_isRich = TRUE;
 236
 237             int ver = wxRichEditModule::GetLoadedVersion();
 238             if ( ver == 1 )
 239             {
 240                 windowClass = wxT("RICHEDIT");
 241             }
 242             else
 243             {
 244 #ifndef RICHEDIT_CLASS
 245                 wxString RICHEDIT_CLASS;
 246                 RICHEDIT_CLASS.Printf(_T("RichEdit%d0"), ver);
 247 #if wxUSE_UNICODE
 248                 RICHEDIT_CLASS += _T('W');
 249 #else // ANSI
 250                 RICHEDIT_CLASS += _T('A');
 251 #endif // Unicode/ANSI
 252 #endif // !RICHEDIT_CLASS
 253
 254                 windowClass = RICHEDIT_CLASS;
 255             }
 256         }
 257     }
 258     else
 259         m_isRich = FALSE;
 260 #endif // wxUSE_RICHEDIT
 261
 262     bool want3D;
 263     WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
 264
 265     // Even with extended styles, need to combine with WS_BORDER for them to
 266     // look right.
 267     if ( want3D || wxStyleHasBorder(m_windowStyle) )
 268         msStyle |= WS_BORDER;
 269
 270     // NB: don't use pos and size as CreateWindowEx arguments because they
 271     //     might be -1 in which case we should use the default values (and
 272     //     SetSize called below takes care of it)
 273     m_hWnd = (WXHWND)::CreateWindowEx(exStyle,
 274                                       windowClass.c_str(),
 275                                       NULL,
 276                                       msStyle,
 277                                       0, 0, 0, 0,
 278                                       GetHwndOf(parent),
 279                                       (HMENU)m_windowId,
 280                                       wxGetInstance(),
 281                                       NULL);
 282
 283     wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create text ctrl") );
 284
 285 #if wxUSE_CTL3D
 286     if ( want3D )
 287     {
 288         Ctl3dSubclassCtl(GetHwnd());
 289         m_useCtl3D = TRUE;
 290     }
 291 #endif
 292
 293 #if wxUSE_RICHEDIT
 294     if (m_isRich)
 295     {
 296         // Have to enable events
 297         ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0,
 298                       ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE);
 299     }
 300 #endif
 301
 302     SubclassWin(GetHWND());
 303
 304     // set font, position, size and initial value
 305     wxFont& fontParent = parent->GetFont();
 306     if ( fontParent.Ok() )
 307     {
 308         SetFont(fontParent);
 309     }
 310     else
 311     {
 312         SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT));
 313     }
 314
 315     // Causes a crash for Symantec C++ and WIN32 for some reason
 316 #if !(defined(__SC__) && defined(__WIN32__))
 317     if ( !value.IsEmpty() )
 318     {
 319         SetValue(value);
 320     }
 321 #endif
 322
 323     // set colours
 324     SetupColours();
 325
 326     SetSize(pos.x, pos.y, size.x, size.y);
 327
 328     return TRUE;
 329 }
 330
 331 // Make sure the window style (etc.) reflects the HWND style (roughly)
 332 void wxTextCtrl::AdoptAttributesFromHWND()
 333 {
 334   wxWindow::AdoptAttributesFromHWND();
 335
 336   HWND hWnd = GetHwnd();
 337   long style = GetWindowLong(hWnd, GWL_STYLE);
 338
 339   // retrieve the style to see whether this is an edit or richedit ctrl
 340 #if wxUSE_RICHEDIT
 341   wxChar buf[256];
 342
 343   GetClassName(hWnd, buf, WXSIZEOF(buf));
 344
 345   if ( wxStricmp(buf, wxT("EDIT")) == 0 )
 346     m_isRich = FALSE;
 347   else
 348     m_isRich = TRUE;
 349 #endif // wxUSE_RICHEDIT
 350
 351   if (style & ES_MULTILINE)
 352     m_windowStyle |= wxTE_MULTILINE;
 353   if (style & ES_PASSWORD)
 354     m_windowStyle |= wxTE_PASSWORD;
 355   if (style & ES_READONLY)
 356     m_windowStyle |= wxTE_READONLY;
 357   if (style & ES_WANTRETURN)
 358     m_windowStyle |= wxTE_PROCESS_ENTER;
 359 }
 360
 361 void wxTextCtrl::SetupColours()
 362 {
 363     wxColour bkgndColour;
 364 //    if (IsEditable() || (m_windowStyle & wxTE_MULTILINE))
 365         bkgndColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW);
 366 //    else
 367 //        bkgndColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 368
 369     SetBackgroundColour(bkgndColour);
 370     SetForegroundColour(GetParent()->GetForegroundColour());
 371 }
 372
 373 // ----------------------------------------------------------------------------
 374 // set/get the controls text
 375 // ----------------------------------------------------------------------------
 376
 377 wxString wxTextCtrl::GetValue() const
 378 {
 379     // we can't use wxGetWindowText() (i.e. WM_GETTEXT internally) for
 380     // retrieving more than 64Kb under Win9x
 381 #if wxUSE_RICHEDIT
 382     if ( m_isRich )
 383     {
 384         wxString str;
 385
 386         int len = GetWindowTextLength(GetHwnd());
 387         if ( len )
 388         {
 389             // alloc one extra WORD as needed by the control
 390             wxChar *p = str.GetWriteBuf(++len);
 391
 392             TEXTRANGE textRange;
 393             textRange.chrg.cpMin = 0;
 394             textRange.chrg.cpMax = -1;
 395             textRange.lpstrText = p;
 396
 397             (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange);
 398
 399             // believe it or not, but EM_GETTEXTRANGE uses just CR ('\r') for
 400             // the newlines which is neither Unix nor Windows style (Win95 with
 401             // riched20.dll shows this behaviour) - convert it to something
 402             // reasonable
 403             for ( ; *p; p++ )
 404             {
 405                 if ( *p == _T('\r') )
 406                     *p = _T('\n');
 407             }
 408
 409             str.UngetWriteBuf();
 410         }
 411         //else: no text at all, leave the string empty
 412
 413         return str;
 414     }
 415 #endif // wxUSE_RICHEDIT
 416
 417     // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the
 418     // same one as above for consitency
 419     wxString str = wxGetWindowText(GetHWND());
 420
 421     return wxTextFile::Translate(str, wxTextFileType_Unix);
 422 }
 423
 424 void wxTextCtrl::SetValue(const wxString& value)
 425 {
 426     // if the text is long enough, it's faster to just set it instead of first
 427     // comparing it with the old one (chances are that it will be different
 428     // anyhow, this comparison is there to avoid flicker for small single-line
 429     // edit controls mostly)
 430     if ( (value.length() > 0x400) || (value != GetValue()) )
 431     {
 432         wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
 433
 434         SetWindowText(GetHwnd(), valueDos.c_str());
 435
 436         // for compatibility with the GTK and because it is more logical, we
 437         // move the cursor to the end of the text after SetValue()
 438
 439         // GRG, Jun/2000: Changed this back after a lot of discussion
 440         //   in the lists. wxWindows 2.2 will have a set of flags to
 441         //   customize this behaviour.
 442         //SetInsertionPointEnd();
 443
 444         AdjustSpaceLimit();
 445     }
 446 }
 447
 448 void wxTextCtrl::WriteText(const wxString& value)
 449 {
 450     wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
 451
 452 #if wxUSE_RICHEDIT
 453     // ensure that the new text will be in the default style
 454     if ( IsRich() &&
 455             (m_defaultStyle.HasFont() || m_defaultStyle.HasTextColour()) )
 456     {
 457         long start, end;
 458         GetSelection(&start, &end);
 459         SetStyle(start, end, m_defaultStyle );
 460     }
 461 #endif // wxUSE_RICHEDIT
 462
 463     SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str());
 464
 465     AdjustSpaceLimit();
 466 }
 467
 468 void wxTextCtrl::AppendText(const wxString& text)
 469 {
 470     SetInsertionPointEnd();
 471     WriteText(text);
 472 }
 473
 474 void wxTextCtrl::Clear()
 475 {
 476     SetWindowText(GetHwnd(), wxT(""));
 477 }
 478
 479 // ----------------------------------------------------------------------------
 480 // Clipboard operations
 481 // ----------------------------------------------------------------------------
 482
 483 void wxTextCtrl::Copy()
 484 {
 485     if (CanCopy())
 486     {
 487         HWND hWnd = GetHwnd();
 488         SendMessage(hWnd, WM_COPY, 0, 0L);
 489     }
 490 }
 491
 492 void wxTextCtrl::Cut()
 493 {
 494     if (CanCut())
 495     {
 496         HWND hWnd = GetHwnd();
 497         SendMessage(hWnd, WM_CUT, 0, 0L);
 498     }
 499 }
 500
 501 void wxTextCtrl::Paste()
 502 {
 503     if (CanPaste())
 504     {
 505         HWND hWnd = GetHwnd();
 506         SendMessage(hWnd, WM_PASTE, 0, 0L);
 507     }
 508 }
 509
 510 bool wxTextCtrl::CanCopy() const
 511 {
 512     // Can copy if there's a selection
 513     long from, to;
 514     GetSelection(& from, & to);
 515     return (from != to) ;
 516 }
 517
 518 bool wxTextCtrl::CanCut() const
 519 {
 520     // Can cut if there's a selection
 521     long from, to;
 522     GetSelection(& from, & to);
 523     return (from != to) && (IsEditable());
 524 }
 525
 526 bool wxTextCtrl::CanPaste() const
 527 {
 528 #if wxUSE_RICHEDIT
 529     if (m_isRich)
 530     {
 531         int dataFormat = 0; // 0 == any format
 532         return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0);
 533     }
 534 #endif
 535     if (!IsEditable())
 536         return FALSE;
 537
 538     // Standard edit control: check for straight text on clipboard
 539     bool isTextAvailable = FALSE;
 540     if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
 541     {
 542         isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0);
 543         ::CloseClipboard();
 544     }
 545
 546     return isTextAvailable;
 547 }
 548
 549 // ----------------------------------------------------------------------------
 550 // Accessors
 551 // ----------------------------------------------------------------------------
 552
 553 void wxTextCtrl::SetEditable(bool editable)
 554 {
 555     HWND hWnd = GetHwnd();
 556     SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
 557 }
 558
 559 void wxTextCtrl::SetInsertionPoint(long pos)
 560 {
 561     HWND hWnd = GetHwnd();
 562 #ifdef __WIN32__
 563 #if wxUSE_RICHEDIT
 564     if ( m_isRich)
 565     {
 566         CHARRANGE range;
 567         range.cpMin = pos;
 568         range.cpMax = pos;
 569         SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range);
 570         SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 571     }
 572     else
 573 #endif // wxUSE_RICHEDIT
 574     {
 575         SendMessage(hWnd, EM_SETSEL, pos, pos);
 576         SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 577     }
 578 #else // Win16
 579     SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos));
 580 #endif // Win32/16
 581
 582     static const wxChar *nothing = _T("");
 583     SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);
 584 }
 585
 586 void wxTextCtrl::SetInsertionPointEnd()
 587 {
 588     long pos = GetLastPosition();
 589     SetInsertionPoint(pos);
 590 }
 591
 592 long wxTextCtrl::GetInsertionPoint() const
 593 {
 594 #if wxUSE_RICHEDIT
 595     if (m_isRich)
 596     {
 597         CHARRANGE range;
 598         range.cpMin = 0;
 599         range.cpMax = 0;
 600         SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range);
 601         return range.cpMin;
 602     }
 603 #endif
 604
 605     DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
 606     return Pos & 0xFFFF;
 607 }
 608
 609 long wxTextCtrl::GetLastPosition() const
 610 {
 611     HWND hWnd = GetHwnd();
 612
 613     // Will always return a number > 0 (according to docs)
 614     int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
 615
 616     // This gets the char index for the _beginning_ of the last line
 617     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
 618
 619     // Get number of characters in the last line. We'll add this to the character
 620     // index for the last line, 1st position.
 621     int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
 622
 623     return (long)(charIndex + lineLength);
 624 }
 625
 626 // If the return values from and to are the same, there is no
 627 // selection.
 628 void wxTextCtrl::GetSelection(long* from, long* to) const
 629 {
 630 #if wxUSE_RICHEDIT
 631     if (m_isRich)
 632     {
 633         CHARRANGE charRange;
 634         ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange);
 635
 636         *from = charRange.cpMin;
 637         *to = charRange.cpMax;
 638     }
 639     else
 640 #endif // rich/!rich
 641     {
 642         DWORD dwStart, dwEnd;
 643         WPARAM wParam = (WPARAM) &dwStart; // receives starting position
 644         LPARAM lParam = (LPARAM) &dwEnd;   // receives ending position
 645
 646         ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam);
 647
 648         *from = dwStart;
 649         *to = dwEnd;
 650     }
 651 }
 652
 653 bool wxTextCtrl::IsEditable() const
 654 {
 655     long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
 656
 657     return ((style & ES_READONLY) == 0);
 658 }
 659
 660 // ----------------------------------------------------------------------------
 661 // Editing
 662 // ----------------------------------------------------------------------------
 663
 664 void wxTextCtrl::Replace(long from, long to, const wxString& value)
 665 {
 666 #if wxUSE_CLIPBOARD
 667     HWND hWnd = GetHwnd();
 668     long fromChar = from;
 669     long toChar = to;
 670
 671     // Set selection and remove it
 672 #ifdef __WIN32__
 673     SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
 674 #else
 675     SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
 676 #endif
 677     SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 678
 679     // Now replace with 'value', by pasting.
 680     wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0);
 681
 682     // Paste into edit control
 683     SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
 684 #else
 685     wxFAIL_MSG("wxTextCtrl::Replace not implemented if wxUSE_CLIPBOARD is 0.");
 686 #endif
 687 }
 688
 689 void wxTextCtrl::Remove(long from, long to)
 690 {
 691     HWND hWnd = GetHwnd();
 692     long fromChar = from;
 693     long toChar = to;
 694
 695     // Cut all selected text
 696 #ifdef __WIN32__
 697     SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
 698 #else
 699     SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
 700 #endif
 701     SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 702 }
 703
 704 void wxTextCtrl::SetSelection(long from, long to)
 705 {
 706     HWND hWnd = GetHwnd();
 707     long fromChar = from;
 708     long toChar = to;
 709
 710     // if from and to are both -1, it means (in wxWindows) that all text should
 711     // be selected. Translate into Windows convention
 712     if ((from == -1) && (to == -1))
 713     {
 714       fromChar = 0;
 715       toChar = -1;
 716     }
 717
 718 #ifdef __WIN32__
 719     SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar);
 720     SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 721 #else
 722     // WPARAM is 0: selection is scrolled into view
 723     SendMessage(hWnd, EM_SETSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
 724 #endif
 725 }
 726
 727 bool wxTextCtrl::LoadFile(const wxString& file)
 728 {
 729     if ( wxTextCtrlBase::LoadFile(file) )
 730     {
 731         // update the size limit if needed
 732         AdjustSpaceLimit();
 733
 734         return TRUE;
 735     }
 736
 737     return FALSE;
 738 }
 739
 740 bool wxTextCtrl::IsModified() const
 741 {
 742     return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0);
 743 }
 744
 745 // Makes 'unmodified'
 746 void wxTextCtrl::DiscardEdits()
 747 {
 748     SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);
 749 }
 750
 751 int wxTextCtrl::GetNumberOfLines() const
 752 {
 753     return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0);
 754 }
 755
 756 long wxTextCtrl::XYToPosition(long x, long y) const
 757 {
 758     HWND hWnd = GetHwnd();
 759
 760     // This gets the char index for the _beginning_ of this line
 761     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)y, (LPARAM)0);
 762     return (long)(x + charIndex);
 763 }
 764
 765 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
 766 {
 767     HWND hWnd = GetHwnd();
 768
 769     // This gets the line number containing the character
 770     int lineNo;
 771 #if wxUSE_RICHEDIT
 772     if ( m_isRich )
 773     {
 774         lineNo = (int)SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos);
 775     }
 776     else
 777 #endif // wxUSE_RICHEDIT
 778         lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0);
 779
 780     if ( lineNo == -1 )
 781     {
 782         // no such line
 783         return FALSE;
 784     }
 785
 786     // This gets the char index for the _beginning_ of this line
 787     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0);
 788     if ( charIndex == -1 )
 789     {
 790         return FALSE;
 791     }
 792
 793     // The X position must therefore be the different between pos and charIndex
 794     if ( x )
 795         *x = (long)(pos - charIndex);
 796     if ( y )
 797         *y = (long)lineNo;
 798
 799     return TRUE;
 800 }
 801
 802 void wxTextCtrl::ShowPosition(long pos)
 803 {
 804     HWND hWnd = GetHwnd();
 805
 806     // To scroll to a position, we pass the number of lines and characters
 807     // to scroll *by*. This means that we need to:
 808     // (1) Find the line position of the current line.
 809     // (2) Find the line position of pos.
 810     // (3) Scroll by (pos - current).
 811     // For now, ignore the horizontal scrolling.
 812
 813     // Is this where scrolling is relative to - the line containing the caret?
 814     // Or is the first visible line??? Try first visible line.
 815 //    int currentLineLineNo1 = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L);
 816
 817     int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L);
 818
 819     int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L);
 820
 821     int linesToScroll = specifiedLineLineNo - currentLineLineNo;
 822
 823     if (linesToScroll != 0)
 824       (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll);
 825 }
 826
 827 int wxTextCtrl::GetLineLength(long lineNo) const
 828 {
 829     long charIndex = XYToPosition(0, lineNo);
 830     int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0);
 831     return len;
 832 }
 833
 834 wxString wxTextCtrl::GetLineText(long lineNo) const
 835 {
 836     size_t len = (size_t)GetLineLength(lineNo) + 1;
 837
 838     // there must be at least enough place for the length WORD in the
 839     // buffer
 840     len += sizeof(WORD);
 841
 842     wxString str;
 843     wxChar *buf = str.GetWriteBuf(len);
 844
 845     *(WORD *)buf = (WORD)len;
 846     len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
 847     buf[len] = 0;
 848
 849     str.UngetWriteBuf(len);
 850
 851     return str;
 852 }
 853
 854 // ----------------------------------------------------------------------------
 855 // Undo/redo
 856 // ----------------------------------------------------------------------------
 857
 858 void wxTextCtrl::Undo()
 859 {
 860     if (CanUndo())
 861     {
 862         ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
 863     }
 864 }
 865
 866 void wxTextCtrl::Redo()
 867 {
 868     if (CanRedo())
 869     {
 870         // Same as Undo, since Undo undoes the undo, i.e. a redo.
 871         ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
 872     }
 873 }
 874
 875 bool wxTextCtrl::CanUndo() const
 876 {
 877     return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);
 878 }
 879
 880 bool wxTextCtrl::CanRedo() const
 881 {
 882     return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);
 883 }
 884
 885 // ----------------------------------------------------------------------------
 886 // implemenation details
 887 // ----------------------------------------------------------------------------
 888
 889 void wxTextCtrl::Command(wxCommandEvent & event)
 890 {
 891     SetValue(event.GetString());
 892     ProcessCommand (event);
 893 }
 894
 895 void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
 896 {
 897     // By default, load the first file into the text window.
 898     if (event.GetNumberOfFiles() > 0)
 899     {
 900         LoadFile(event.GetFiles()[0]);
 901     }
 902 }
 903
 904 void wxTextCtrl::OnChar(wxKeyEvent& event)
 905 {
 906     switch ( event.KeyCode() )
 907     {
 908         case WXK_RETURN:
 909             if ( !(m_windowStyle & wxTE_MULTILINE) )
 910             {
 911                 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 912                 InitCommandEvent(event);
 913                 event.SetString(GetValue());
 914                 if ( GetEventHandler()->ProcessEvent(event) )
 915                     return;
 916             }
 917             //else: multiline controls need Enter for themselves
 918
 919             break;
 920
 921         case WXK_TAB:
 922             // always produce navigation event - even if we process TAB
 923             // ourselves the fact that we got here means that the user code
 924             // decided to skip processing of this TAB - probably to let it
 925             // do its default job.
 926             {
 927                 wxNavigationKeyEvent eventNav;
 928                 eventNav.SetDirection(!event.ShiftDown());
 929                 eventNav.SetWindowChange(event.ControlDown());
 930                 eventNav.SetEventObject(this);
 931
 932                 if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
 933                     return;
 934             }
 935             break;
 936     }
 937
 938     // no, we didn't process it
 939     event.Skip();
 940 }
 941
 942 bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
 943 {
 944     switch (param)
 945     {
 946         case EN_SETFOCUS:
 947         case EN_KILLFOCUS:
 948             {
 949                 wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
 950                         : wxEVT_SET_FOCUS,
 951                         m_windowId);
 952                 event.SetEventObject( this );
 953                 GetEventHandler()->ProcessEvent(event);
 954             }
 955             break;
 956
 957         case EN_CHANGE:
 958             {
 959                 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
 960                 InitCommandEvent(event);
 961                 event.SetString(GetValue());
 962                 ProcessCommand(event);
 963             }
 964             break;
 965
 966         case EN_MAXTEXT:
 967             // the text size limit has been hit - increase it
 968             AdjustSpaceLimit();
 969             break;
 970
 971             // the other notification messages are not processed
 972         case EN_UPDATE:
 973         case EN_ERRSPACE:
 974         case EN_HSCROLL:
 975         case EN_VSCROLL:
 976             return FALSE;
 977         default:
 978             return FALSE;
 979     }
 980
 981     // processed
 982     return TRUE;
 983 }
 984
 985 WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
 986 #if wxUSE_CTL3D
 987                                WXUINT message,
 988                                WXWPARAM wParam,
 989                                WXLPARAM lParam
 990 #else
 991                                WXUINT WXUNUSED(message),
 992                                WXWPARAM WXUNUSED(wParam),
 993                                WXLPARAM WXUNUSED(lParam)
 994 #endif
 995     )
 996 {
 997 #if wxUSE_CTL3D
 998     if ( m_useCtl3D )
 999     {
1000         HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
1001         return (WXHBRUSH) hbrush;
1002     }
1003 #endif // wxUSE_CTL3D
1004
1005     HDC hdc = (HDC)pDC;
1006     if (GetParent()->GetTransparentBackground())
1007         SetBkMode(hdc, TRANSPARENT);
1008     else
1009         SetBkMode(hdc, OPAQUE);
1010
1011     wxColour colBack = GetBackgroundColour();
1012
1013     if (!IsEnabled() && (GetWindowStyle() & wxTE_MULTILINE) == 0)
1014         colBack = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
1015
1016     ::SetBkColor(hdc, wxColourToRGB(colBack));
1017     ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
1018
1019     wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
1020
1021     return (WXHBRUSH)brush->GetResourceHandle();
1022 }
1023
1024 // In WIN16, need to override normal erasing because
1025 // Ctl3D doesn't use the wxWindows background colour.
1026 #ifdef __WIN16__
1027 void wxTextCtrl::OnEraseBackground(wxEraseEvent& event)
1028 {
1029     wxColour col(m_backgroundColour);
1030
1031 #if wxUSE_CTL3D
1032     if (m_useCtl3D)
1033         col = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW);
1034 #endif
1035
1036     RECT rect;
1037     ::GetClientRect(GetHwnd(), &rect);
1038
1039     COLORREF ref = PALETTERGB(col.Red(),
1040                               col.Green(),
1041                               col.Blue());
1042     HBRUSH hBrush = ::CreateSolidBrush(ref);
1043     if ( !hBrush )
1044         wxLogLastError(wxT("CreateSolidBrush"));
1045
1046     HDC hdc = (HDC)event.GetDC()->GetHDC();
1047
1048     int mode = ::SetMapMode(hdc, MM_TEXT);
1049
1050     ::FillRect(hdc, &rect, hBrush);
1051     ::DeleteObject(hBrush);
1052     ::SetMapMode(hdc, mode);
1053
1054 }
1055 #endif
1056
1057 void wxTextCtrl::AdjustSpaceLimit()
1058 {
1059 #ifndef __WIN16__
1060     unsigned int len = ::GetWindowTextLength(GetHwnd()),
1061     limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
1062     if ( len >= limit )
1063     {
1064         limit = len + 0x8000;    // 32Kb
1065
1066 #if wxUSE_RICHEDIT
1067         if ( m_isRich )
1068         {
1069             // as a nice side effect, this also allows passing limit > 64Kb
1070             ::SendMessage(GetHwnd(), EM_EXLIMITTEXT, 0, limit);
1071         }
1072         else
1073 #endif // wxUSE_RICHEDIT
1074         {
1075             if ( limit > 0xffff )
1076             {
1077                 // this will set it to a platform-dependent maximum (much more
1078                 // than 64Kb under NT)
1079                 limit = 0;
1080             }
1081
1082             ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0);
1083         }
1084     }
1085 #endif // !Win16
1086 }
1087
1088 bool wxTextCtrl::AcceptsFocus() const
1089 {
1090     // we don't want focus if we can't be edited
1091     return IsEditable() && wxControl::AcceptsFocus();
1092 }
1093
1094 wxSize wxTextCtrl::DoGetBestSize() const
1095 {
1096     int cx, cy;
1097     wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
1098
1099     int wText = DEFAULT_ITEM_WIDTH;
1100
1101     int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
1102     if ( m_windowStyle & wxTE_MULTILINE )
1103     {
1104         hText *= wxMax(GetNumberOfLines(), 5);
1105     }
1106     //else: for single line control everything is ok
1107
1108     return wxSize(wText, hText);
1109 }
1110
1111 // ----------------------------------------------------------------------------
1112 // standard handlers for standard edit menu events
1113 // ----------------------------------------------------------------------------
1114
1115 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1116 {
1117     Cut();
1118 }
1119
1120 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1121 {
1122     Copy();
1123 }
1124
1125 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1126 {
1127     Paste();
1128 }
1129
1130 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1131 {
1132     Undo();
1133 }
1134
1135 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1136 {
1137     Redo();
1138 }
1139
1140 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1141 {
1142     event.Enable( CanCut() );
1143 }
1144
1145 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1146 {
1147     event.Enable( CanCopy() );
1148 }
1149
1150 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1151 {
1152     event.Enable( CanPaste() );
1153 }
1154
1155 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1156 {
1157     event.Enable( CanUndo() );
1158 }
1159
1160 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1161 {
1162     event.Enable( CanRedo() );
1163 }
1164
1165 // the rest of the file only deals with the rich edit controls
1166 #if wxUSE_RICHEDIT
1167
1168 // ----------------------------------------------------------------------------
1169 // colour setting for the rich edit controls
1170 // ----------------------------------------------------------------------------
1171
1172 // Watcom C++ doesn't define this
1173 #ifndef SCF_ALL
1174 #define SCF_ALL 0x0004
1175 #endif
1176
1177 bool wxTextCtrl::SetBackgroundColour(const wxColour& colour)
1178 {
1179     if ( !wxTextCtrlBase::SetBackgroundColour(colour) )
1180     {
1181         // colour didn't really change
1182         return FALSE;
1183     }
1184
1185     if ( IsRich() )
1186     {
1187         // rich edit doesn't use WM_CTLCOLOR, hence we need to send
1188         // EM_SETBKGNDCOLOR additionally
1189         ::SendMessage(GetHwnd(), EM_SETBKGNDCOLOR, 0, wxColourToRGB(colour));
1190     }
1191
1192     return TRUE;
1193 }
1194
1195 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1196 {
1197     if ( !wxTextCtrlBase::SetForegroundColour(colour) )
1198     {
1199         // colour didn't really change
1200         return FALSE;
1201     }
1202
1203     if ( IsRich() )
1204     {
1205         // change the colour of everything
1206         CHARFORMAT cf;
1207         wxZeroMemory(cf);
1208         cf.cbSize = sizeof(cf);
1209         cf.dwMask = CFM_COLOR;
1210         cf.crTextColor = wxColourToRGB(colour);
1211         ::SendMessage(GetHwnd(), EM_SETCHARFORMAT, SCF_ALL, (LPARAM)&cf);
1212     }
1213
1214     return TRUE;
1215 }
1216
1217 // ----------------------------------------------------------------------------
1218 // styling support for rich edit controls
1219 // ----------------------------------------------------------------------------
1220
1221 bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
1222 {
1223     if ( !IsRich() )
1224     {
1225         // can't do it with normal text control
1226         return FALSE;
1227     }
1228
1229     // the rich text control doesn't handle setting background colour, so don't
1230     // even try if it's the only thing we want to change
1231     if ( !style.HasFont() && !style.HasTextColour() )
1232     {
1233         // nothing to do: return TRUE if there was really nothing to doand
1234         // FALSE fi we failed to set bg colour
1235         return !style.HasBackgroundColour();
1236     }
1237
1238     // order the range if needed
1239     if ( start > end )
1240     {
1241         long tmp = start;
1242         start = end;
1243         end = tmp;
1244     }
1245
1246     // we can only change the format of the selection, so select the range we
1247     // want and restore the old selection later
1248     long startOld, endOld;
1249     GetSelection(&startOld, &endOld);
1250
1251     // but do we really have to change the selection?
1252     bool changeSel = start != startOld || end != endOld;
1253
1254     if ( changeSel )
1255         SendMessage(GetHwnd(), EM_SETSEL, (WPARAM) start, (LPARAM) end);
1256
1257     // initialize CHARFORMAT struct
1258     CHARFORMAT cf;
1259     wxZeroMemory(cf);
1260     cf.cbSize = sizeof(cf);
1261
1262     if ( style.HasFont() )
1263     {
1264         cf.dwMask |= CFM_FACE | CFM_SIZE | CFM_CHARSET;
1265
1266         // fill in data from LOGFONT but recalculate lfHeight because we need
1267         // the real height in twips and not the negative number which
1268         // wxFillLogFont() returns (this is correct in general and works with
1269         // the Windows font mapper, but not here)
1270         LOGFONT lf;
1271         wxFillLogFont(&lf, &style.GetFont());
1272         cf.yHeight = 20*style.GetFont().GetPointSize(); // 1 pt = 20 twips
1273         cf.bCharSet = lf.lfCharSet;
1274         cf.bPitchAndFamily = lf.lfPitchAndFamily;
1275         wxStrncpy( cf.szFaceName, lf.lfFaceName, WXSIZEOF(cf.szFaceName) );
1276
1277         // also deal with underline/italic/bold attributes
1278         if ( lf.lfItalic )
1279         {
1280             cf.dwMask |= CFM_ITALIC;
1281             cf.dwEffects |= CFE_ITALIC;
1282         }
1283
1284         if ( lf.lfWeight == FW_BOLD )
1285         {
1286             cf.dwMask |= CFM_BOLD;
1287             cf.dwEffects |= CFE_BOLD;
1288         }
1289
1290         if ( lf.lfUnderline )
1291         {
1292             cf.dwMask |= CFM_UNDERLINE;
1293             cf.dwEffects |= CFE_UNDERLINE;
1294         }
1295
1296         // strikeout fonts are not supported by wxWindows
1297     }
1298
1299     if ( style.HasTextColour() )
1300     {
1301         cf.dwMask |= CFM_COLOR;
1302         cf.crTextColor = wxColourToRGB(style.GetTextColour());
1303     }
1304
1305     // do format the selection
1306     bool ok = ::SendMessage(GetHwnd(), EM_SETCHARFORMAT,
1307                             SCF_SELECTION, (LPARAM)&cf) != 0;
1308     if ( !ok )
1309     {
1310         wxLogDebug(_T("SendMessage(EM_SETCHARFORMAT, SCF_SELECTION) failed"));
1311     }
1312
1313     if ( changeSel )
1314     {
1315         // restore the original selection
1316         SendMessage(GetHwnd(), EM_SETSEL, (WPARAM)startOld, (LPARAM)endOld);
1317     }
1318
1319     return ok;
1320 }
1321
1322 // ----------------------------------------------------------------------------
1323 // wxRichEditModule
1324 // ----------------------------------------------------------------------------
1325
1326 bool wxRichEditModule::OnInit()
1327 {
1328     // don't do anything - we will load it when needed
1329     return TRUE;
1330 }
1331
1332 void wxRichEditModule::OnExit()
1333 {
1334     if ( ms_hRichEdit )
1335     {
1336         FreeLibrary(ms_hRichEdit);
1337     }
1338 }
1339
1340 /* static */
1341 bool wxRichEditModule::Load(int version)
1342 {
1343     wxCHECK_MSG( version >= 1 && version <= 3, FALSE,
1344                  _T("incorrect richedit control version requested") );
1345
1346     if ( version <= ms_verRichEdit )
1347     {
1348         // we've already got this or better
1349         return TRUE;
1350     }
1351
1352     if ( ms_hRichEdit )
1353     {
1354         ::FreeLibrary(ms_hRichEdit);
1355     }
1356
1357     // always try load riched20.dll first - like this we won't have to reload
1358     // it later if we're first asked for RE 1 and then for RE 2 or 3
1359     wxString dllname = _T("riched20.dll");
1360     ms_hRichEdit = ::LoadLibrary(dllname);
1361     ms_verRichEdit = 2; // no way to tell if it's 2 or 3, assume 2
1362
1363     if ( !ms_hRichEdit && (version == 1) )
1364     {
1365         // fall back to RE 1
1366         dllname = _T("riched32.dll");
1367         ms_hRichEdit = ::LoadLibrary(dllname);
1368         ms_verRichEdit = 1;
1369     }
1370
1371     if ( !ms_hRichEdit )
1372     {
1373         wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str());
1374
1375         ms_verRichEdit = -1;
1376
1377         return FALSE;
1378     }
1379
1380     return TRUE;
1381 }
1382
1383 #endif // wxUSE_RICHEDIT
1384