src/msw/tbar95.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        tbar95.cpp
   3 // Purpose:     wxToolBar95
   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 #ifdef __GNUG__
  13 #pragma implementation "tbar95.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx.h"
  25 #endif
  26
  27 #if USE_BUTTONBAR && USE_TOOLBAR && defined(__WIN95__)
  28
  29 #ifndef __GNUWIN32__
  30 #include "malloc.h"
  31 #endif
  32
  33 #include <windows.h>
  34
  35 #ifndef __GNUWIN32__
  36 #include <commctrl.h>
  37 #endif
  38
  39 #ifdef __GNUWIN32__
  40 #include "wx/msw/gnuwin32/extra.h"
  41 #endif
  42
  43 #include "wx/msw/dib.h"
  44 #include "wx/tbar95.h"
  45 #include "wx/app.h"
  46 #include "wx/msw/private.h"
  47
  48 // Styles
  49 #ifndef TBSTYLE_FLAT
  50 #define TBSTYLE_LIST            0x1000
  51 #define TBSTYLE_FLAT            0x0800
  52 #define TBSTYLE_TRANSPARENT     0x8000
  53 #endif
  54  // use TBSTYLE_TRANSPARENT if you use TBSTYLE_FLAT
  55
  56 // Messages
  57 #ifndef TB_GETSTYLE
  58 #define TB_GETSTYLE             (WM_USER + 57)
  59 #define TB_SETSTYLE             (WM_USER + 56)
  60 #endif
  61
  62 /* Hint from a newsgroup for custom flatbar drawing:
  63 Set the TBSTYLE_CUSTOMERASE style, then handle the
  64 NM_CUSTOMDRAW message and do your custom drawing.
  65 */
  66
  67 #define DEFAULTBITMAPX   16
  68 #define DEFAULTBITMAPY   15
  69 #define DEFAULTBUTTONX   24
  70 #define DEFAULTBUTTONY   24
  71 #define DEFAULTBARHEIGHT 27
  72
  73 #if !USE_SHARED_LIBRARY
  74 IMPLEMENT_DYNAMIC_CLASS(wxToolBar95, wxToolBarBase)
  75
  76 BEGIN_EVENT_TABLE(wxToolBar95, wxToolBarBase)
  77         EVT_SIZE(wxToolBar95::OnSize)
  78         EVT_PAINT(wxToolBar95::OnPaint)
  79         EVT_KILL_FOCUS(wxToolBar95::OnKillFocus)
  80         EVT_MOUSE_EVENTS(wxToolBar95::OnMouseEvent)
  81     EVT_SYS_COLOUR_CHANGED(wxToolBar95::OnSysColourChanged)
  82 END_EVENT_TABLE()
  83 #endif
  84
  85 void wxMapBitmap(HBITMAP hBitmap, int width, int height);
  86
  87 wxToolBar95::wxToolBar95(void)
  88 {
  89   m_maxWidth = -1;
  90   m_maxHeight = -1;
  91   m_hBitmap = 0;
  92   m_defaultWidth = DEFAULTBITMAPX;
  93   m_defaultHeight = DEFAULTBITMAPY;
  94 }
  95
  96 bool wxToolBar95::Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
  97             long style, const wxString& name)
  98 {
  99   m_backgroundColour = wxColour(GetRValue(GetSysColor(COLOR_BTNFACE)),
 100         GetGValue(GetSysColor(COLOR_BTNFACE)), GetBValue(GetSysColor(COLOR_BTNFACE)));
 101   m_foregroundColour = *wxBLACK ;
 102
 103   m_defaultForegroundColour = *wxBLACK ;
 104   m_defaultBackgroundColour = wxColour(GetRValue(GetSysColor(COLOR_BTNFACE)),
 105         GetGValue(GetSysColor(COLOR_BTNFACE)), GetBValue(GetSysColor(COLOR_BTNFACE)));
 106
 107   if (style & wxTB_VERTICAL)
 108     wxMessageBox("Sorry, wxToolBar95 under Windows 95 only supports vertical tiling.", "wxToolBar95 usage", wxOK);
 109   m_maxWidth = -1;
 110   m_maxHeight = -1;
 111
 112   m_hBitmap = 0;
 113
 114   m_defaultWidth = DEFAULTBITMAPX;
 115   m_defaultHeight = DEFAULTBITMAPY;
 116   SetName(name);
 117
 118   int x = pos.x;
 119   int y = pos.y;
 120   int width = size.x;
 121   int height = size.y;
 122
 123   m_windowStyle = style;
 124
 125   SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 126
 127   SetParent(parent);
 128
 129   DWORD msflags = 0;
 130   if (style & wxBORDER)
 131     msflags |= WS_BORDER;
 132   msflags |= WS_CHILD | WS_VISIBLE;
 133
 134   if (width <= 0)
 135     width = 100;
 136   if (height <= 0)
 137     height = 30;
 138   if (x < 0)
 139     x = 0;
 140   if (y < 0)
 141     y = 0;
 142
 143   m_windowId = (id < 0 ? NewControlId() : id);
 144   DWORD msStyle = WS_CHILD | WS_BORDER | WS_VISIBLE | TBSTYLE_TOOLTIPS;
 145
 146   if (style & wxTB_FLAT)
 147   {
 148     if (wxTheApp->GetComCtl32Version() > 400)
 149         msStyle |= TBSTYLE_FLAT;
 150   }
 151
 152   // Create the toolbar control.
 153   HWND hWndToolbar = CreateWindowEx(0L,   // No extended styles.
 154     TOOLBARCLASSNAME,                 // Class name for the toolbar.
 155     "",                               // No default text.
 156     msStyle,    // Styles and defaults.
 157     x, y, width, height,                    // Standard toolbar size and position.
 158     (HWND) parent->GetHWND(),                       // Parent window of the toolbar.
 159     (HMENU)m_windowId,                // Toolbar ID.
 160     wxGetInstance(),                            // Current instance.
 161     NULL );                           // No class data.
 162
 163   // Toolbar-specific initialisation
 164   ::SendMessage(hWndToolbar, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), (LPARAM)0);
 165
 166   m_hWnd = (WXHWND) hWndToolbar;
 167   if (parent) parent->AddChild(this);
 168
 169   SubclassWin((WXHWND) hWndToolbar);
 170
 171   return TRUE;
 172 }
 173
 174 wxToolBar95::~wxToolBar95(void)
 175 {
 176   UnsubclassWin();
 177
 178   if (m_hBitmap)
 179   {
 180     ::DeleteObject((HBITMAP) m_hBitmap);
 181     m_hBitmap = 0;
 182   }
 183 }
 184
 185 bool wxToolBar95::CreateTools(void)
 186 {
 187   if (m_tools.Number() == 0)
 188     return FALSE;
 189
 190   HBITMAP oldToolBarBitmap = (HBITMAP) m_hBitmap;
 191
 192   int totalBitmapWidth = (int)(m_defaultWidth * m_tools.Number());
 193   int totalBitmapHeight = (int)m_defaultHeight;
 194
 195   // Create a bitmap for all the tool bitmaps
 196   HDC dc = ::GetDC(NULL);
 197   m_hBitmap = (WXHBITMAP) ::CreateCompatibleBitmap(dc, totalBitmapWidth, totalBitmapHeight);
 198   ::ReleaseDC(NULL, dc);
 199
 200   // Now blit all the tools onto this bitmap
 201   HDC memoryDC = ::CreateCompatibleDC(NULL);
 202   HBITMAP oldBitmap = (HBITMAP) ::SelectObject(memoryDC, (HBITMAP) m_hBitmap);
 203
 204   HDC memoryDC2 = ::CreateCompatibleDC(NULL);
 205   int x = 0;
 206   wxNode *node = m_tools.First();
 207   int noButtons = 0;
 208   while (node)
 209   {
 210     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 211     if ((tool->m_toolStyle != wxTOOL_STYLE_SEPARATOR) && tool->m_bitmap1.Ok() && tool->m_bitmap1.GetHBITMAP())
 212     {
 213 //      wxPalette *palette = tool->m_bitmap1->GetPalette();
 214
 215       HBITMAP oldBitmap2 = (HBITMAP) ::SelectObject(memoryDC2, (HBITMAP) tool->m_bitmap1.GetHBITMAP());
 216       /* int bltResult = */
 217           BitBlt(memoryDC, x, 0, (int) m_defaultWidth, (int) m_defaultHeight, memoryDC2,
 218                         0, 0, SRCCOPY);
 219       ::SelectObject(memoryDC2, oldBitmap2);
 220       x += (int)m_defaultWidth;
 221       noButtons ++;
 222     }
 223     node = node->Next();
 224   }
 225   ::SelectObject(memoryDC, oldBitmap);
 226   ::DeleteDC(memoryDC);
 227   ::DeleteDC(memoryDC2);
 228
 229   // Map to system colours
 230   wxMapBitmap((HBITMAP) m_hBitmap, totalBitmapWidth, totalBitmapHeight);
 231
 232   if ( oldToolBarBitmap )
 233   {
 234     TBREPLACEBITMAP replaceBitmap;
 235     replaceBitmap.hInstOld = NULL;
 236     replaceBitmap.hInstNew = NULL;
 237     replaceBitmap.nIDOld = (UINT) oldToolBarBitmap;
 238     replaceBitmap.nIDNew = (UINT) (HBITMAP) m_hBitmap;
 239     replaceBitmap.nButtons = noButtons;
 240     if (::SendMessage((HWND) GetHWND(), TB_REPLACEBITMAP, (WPARAM) 0, (LPARAM) &replaceBitmap) == -1)
 241       wxMessageBox("Could not add bitmap to toolbar");
 242
 243     ::DeleteObject((HBITMAP) oldToolBarBitmap);
 244
 245     // Now delete all the buttons
 246     int i = 0;
 247     while ( TRUE )
 248     {
 249         // TODO: What about separators???? They don't have an id!
 250         if ( ! ::SendMessage( (HWND) GetHWND(), TB_DELETEBUTTON, i, 0 ) )
 251             break;
 252     }
 253   }
 254   else
 255   {
 256     TBADDBITMAP addBitmap;
 257     addBitmap.hInst = 0;
 258     addBitmap.nID = (UINT)m_hBitmap;
 259     if (::SendMessage((HWND) GetHWND(), TB_ADDBITMAP, (WPARAM) noButtons, (LPARAM) &addBitmap) == -1)
 260       wxMessageBox("Could not add bitmap to toolbar");
 261   }
 262
 263   // Now add the buttons.
 264   TBBUTTON buttons[50];
 265
 266   node = m_tools.First();
 267   int i = 0;
 268   int bitmapId = 0;
 269   while (node)
 270   {
 271     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 272     if (tool->m_toolStyle == wxTOOL_STYLE_SEPARATOR)
 273     {
 274       buttons[i].iBitmap = 0;
 275       buttons[i].idCommand = 0;
 276
 277       buttons[i].fsState = TBSTATE_ENABLED;
 278       buttons[i].fsStyle = TBSTYLE_SEP;
 279       buttons[i].dwData = 0L;
 280       buttons[i].iString = 0;
 281     }
 282     else
 283     {
 284       buttons[i].iBitmap = bitmapId;
 285       buttons[i].idCommand = tool->m_index;
 286
 287       buttons[i].fsState = 0;
 288       if (tool->m_enabled)
 289         buttons[i].fsState |= TBSTATE_ENABLED;
 290       if (tool->m_toggleState)
 291         buttons[i].fsState |= TBSTATE_CHECKED;
 292       buttons[i].fsStyle = tool->m_isToggle ? TBSTYLE_CHECK : TBSTYLE_BUTTON;
 293       buttons[i].dwData = 0L;
 294       buttons[i].iString = 0;
 295
 296       bitmapId ++;
 297     }
 298
 299     i ++;
 300     node = node->Next();
 301   }
 302
 303   int ans = (int)::SendMessage((HWND) GetHWND(), TB_ADDBUTTONS, (WPARAM)i, (LPARAM)& buttons);
 304   ans = (int)::SendMessage((HWND) GetHWND(), TB_AUTOSIZE, (WPARAM)0, (LPARAM) 0);
 305
 306   RECT rect;
 307   ::SendMessage((HWND) GetHWND(), TB_SETROWS, MAKEWPARAM(m_maxRows, TRUE), (LPARAM) & rect);
 308   m_maxWidth = (rect.right - rect.left + 2);
 309   m_maxHeight = (rect.bottom - rect.top + 2);
 310
 311   return TRUE;
 312 }
 313
 314 bool wxToolBar95::MSWCommand(WXUINT cmd, WXWORD id)
 315 {
 316   wxNode *node = m_tools.Find((long)id);
 317   if (!node)
 318     return FALSE;
 319   wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 320   if (tool->m_isToggle)
 321     tool->m_toggleState = (1 == (1 & (int)::SendMessage((HWND) GetHWND(), TB_GETSTATE, (WPARAM) id, (LPARAM) 0)));
 322
 323   BOOL ret = OnLeftClick((int)id, tool->m_toggleState);
 324   if (ret == FALSE && tool->m_isToggle)
 325   {
 326     tool->m_toggleState = !tool->m_toggleState;
 327     ::SendMessage((HWND) GetHWND(), TB_CHECKBUTTON, (WPARAM)id, (LPARAM)MAKELONG(tool->m_toggleState, 0));
 328   }
 329   return TRUE;
 330 }
 331
 332 bool wxToolBar95::MSWNotify(WXWPARAM WXUNUSED(wParam), WXLPARAM lParam)
 333 {
 334         // First check if this applies to us
 335     NMHDR *hdr = (NMHDR *)lParam;
 336     if (hdr->code != TTN_NEEDTEXT)
 337                 return FALSE;
 338
 339         HWND toolTipWnd = (HWND) ::SendMessage((HWND) GetHWND(), TB_GETTOOLTIPS, 0, 0);
 340         if ( toolTipWnd != hdr->hwndFrom )
 341                 return FALSE;
 342
 343   LPTOOLTIPTEXT ttText = (LPTOOLTIPTEXT) lParam;
 344   int id = (int)ttText->hdr.idFrom;
 345   wxNode *node = m_tools.Find((long)id);
 346   if (!node)
 347     return FALSE;
 348
 349   wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 350
 351   switch (ttText->hdr.code)
 352   {
 353     case TTN_NEEDTEXT:
 354     {
 355       if (tool->m_shortHelpString != "")
 356         ttText->lpszText = (char *) (const char *)tool->m_shortHelpString;
 357
 358       // For backward compatibility...
 359       OnMouseEnter(tool->m_index);
 360       break;
 361     }
 362     default:
 363       return FALSE;
 364       break;
 365   }
 366
 367   return TRUE;
 368 }
 369
 370 void wxToolBar95::SetToolBitmapSize(const wxSize& size)
 371 {
 372   m_defaultWidth = size.x; m_defaultHeight = size.y;
 373   ::SendMessage((HWND) GetHWND(), TB_SETBITMAPSIZE, 0, (LPARAM) MAKELONG ((int)size.x, (int)size.y));
 374 }
 375
 376 void wxToolBar95::SetRows(int nRows)
 377 {
 378   RECT rect;
 379   ::SendMessage((HWND) GetHWND(), TB_SETROWS, MAKEWPARAM(nRows, TRUE), (LPARAM) & rect);
 380   m_maxWidth = (rect.right - rect.left + 2);
 381   m_maxHeight = (rect.bottom - rect.top + 2);
 382 }
 383
 384 wxSize wxToolBar95::GetMaxSize(void) const
 385 {
 386   if (m_maxWidth == -1 | m_maxHeight == -1)
 387   {
 388     RECT rect;
 389     ::SendMessage((HWND) GetHWND(), TB_SETROWS, MAKEWPARAM(m_maxRows, TRUE), (LPARAM) & rect);
 390     ((wxToolBar95 *)this)->m_maxWidth = (rect.right - rect.left + 2); // ???
 391     ((wxToolBar95 *)this)->m_maxHeight = (rect.bottom - rect.top + 2); // ???
 392   }
 393   return wxSize(m_maxWidth, m_maxHeight);
 394 }
 395
 396 void wxToolBar95::GetSize(int *w, int *h) const
 397 {
 398   wxWindow::GetSize(w, h);
 399   // For some reason, the returned height is several pixels bigger than that
 400   // displayed!
 401   *h -= 2;
 402 }
 403
 404 // The button size is bigger than the bitmap size
 405 wxSize wxToolBar95::GetToolSize(void) const
 406 {
 407   return wxSize(m_defaultWidth + 8, m_defaultHeight + 7);
 408 }
 409
 410 void wxToolBar95::EnableTool(int toolIndex, bool enable)
 411 {
 412   wxNode *node = m_tools.Find((long)toolIndex);
 413   if (node)
 414   {
 415     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 416     tool->m_enabled = enable;
 417     ::SendMessage((HWND) GetHWND(), TB_ENABLEBUTTON, (WPARAM)toolIndex, (LPARAM)MAKELONG(enable, 0));
 418   }
 419 }
 420
 421 void wxToolBar95::ToggleTool(int toolIndex, bool toggle)
 422 {
 423   wxNode *node = m_tools.Find((long)toolIndex);
 424   if (node)
 425   {
 426     wxToolBarTool *tool = (wxToolBarTool *)node->Data();
 427     if (tool->m_isToggle)
 428     {
 429       tool->m_toggleState = toggle;
 430       ::SendMessage((HWND) GetHWND(), TB_CHECKBUTTON, (WPARAM)toolIndex, (LPARAM)MAKELONG(toggle, 0));
 431     }
 432   }
 433 }
 434
 435 void wxToolBar95::ClearTools(void)
 436 {
 437   // TODO: Don't know how to reset the toolbar bitmap, as yet.
 438   // But adding tools and calling CreateTools should probably
 439   // recreate a buttonbar OK.
 440   wxToolBarBase::ClearTools();
 441 }
 442
 443 // If pushedBitmap is NULL, a reversed version of bitmap is
 444 // created and used as the pushed/toggled image.
 445 // If toggle is TRUE, the button toggles between the two states.
 446 wxToolBarTool *wxToolBar95::AddTool(int index, const wxBitmap& bitmap, const wxBitmap& pushedBitmap,
 447              bool toggle, long xPos, long yPos, wxObject *clientData, const wxString& helpString1, const wxString& helpString2)
 448 {
 449   wxToolBarTool *tool = new wxToolBarTool(index, bitmap, (wxBitmap *)NULL, toggle, xPos, yPos, helpString1, helpString2);
 450   tool->m_clientData = clientData;
 451
 452   if (xPos > -1)
 453     tool->m_x = xPos;
 454   else
 455     tool->m_x = m_xMargin;
 456
 457   if (yPos > -1)
 458     tool->m_y = yPos;
 459   else
 460     tool->m_y = m_yMargin;
 461
 462   tool->SetSize(GetDefaultButtonWidth(), GetDefaultButtonHeight());
 463
 464   m_tools.Append((long)index, tool);
 465   return tool;
 466 }
 467
 468 // Responds to colour changes, and passes event on to children.
 469 void wxToolBar95::OnSysColourChanged(wxSysColourChangedEvent& event)
 470 {
 471     m_backgroundColour = wxColour(GetRValue(GetSysColor(COLOR_BTNFACE)),
 472             GetGValue(GetSysColor(COLOR_BTNFACE)), GetBValue(GetSysColor(COLOR_BTNFACE)));
 473     m_defaultBackgroundColour = wxColour(GetRValue(GetSysColor(COLOR_BTNFACE)),
 474             GetGValue(GetSysColor(COLOR_BTNFACE)), GetBValue(GetSysColor(COLOR_BTNFACE)));
 475
 476     // Remap the buttons
 477     CreateTools();
 478
 479     Default();
 480
 481     Refresh();
 482
 483     // Propagate the event to the non-top-level children
 484     wxWindow::OnSysColourChanged(event);
 485 }
 486
 487 // These are the default colors used to map the bitmap colors
 488 // to the current system colors
 489
 490 #define BGR_BUTTONTEXT      (RGB(000,000,000))  // black
 491 #define BGR_BUTTONSHADOW    (RGB(128,128,128))  // dark grey
 492 #define BGR_BUTTONFACE      (RGB(192,192,192))  // bright grey
 493 #define BGR_BUTTONHILIGHT   (RGB(255,255,255))  // white
 494 #define BGR_BACKGROUNDSEL   (RGB(255,000,000))  // blue
 495 #define BGR_BACKGROUND      (RGB(255,000,255))  // magenta
 496
 497 void wxMapBitmap(HBITMAP hBitmap, int width, int height)
 498 {
 499   COLORMAP ColorMap[] = {
 500     {BGR_BUTTONTEXT,    COLOR_BTNTEXT},     // black
 501     {BGR_BUTTONSHADOW,  COLOR_BTNSHADOW},   // dark grey
 502     {BGR_BUTTONFACE,    COLOR_BTNFACE},     // bright grey
 503     {BGR_BUTTONHILIGHT, COLOR_BTNHIGHLIGHT},// white
 504     {BGR_BACKGROUNDSEL, COLOR_HIGHLIGHT},   // blue
 505     {BGR_BACKGROUND,    COLOR_WINDOW}       // magenta
 506   };
 507
 508   int NUM_MAPS = (sizeof(ColorMap)/sizeof(COLORMAP));
 509   int n;
 510   for ( n = 0; n < NUM_MAPS; n++)
 511   {
 512     ColorMap[n].to = ::GetSysColor(ColorMap[n].to);
 513   }
 514
 515   HBITMAP hbmOld;
 516   HDC hdcMem = CreateCompatibleDC(NULL);
 517
 518   if (hdcMem)
 519   {
 520     hbmOld = (HBITMAP) SelectObject(hdcMem, hBitmap);
 521
 522     int i, j, k;
 523     for ( i = 0; i < width; i++)
 524     {
 525         for ( j = 0; j < height; j++)
 526         {
 527             COLORREF pixel = ::GetPixel(hdcMem, i, j);
 528 /*
 529             BYTE red = GetRValue(pixel);
 530             BYTE green = GetGValue(pixel);
 531             BYTE blue = GetBValue(pixel);
 532 */
 533
 534             for ( k = 0; k < NUM_MAPS; k ++)
 535             {
 536                 if ( ColorMap[k].from == pixel )
 537                 {
 538                     /* COLORREF actualPixel = */ ::SetPixel(hdcMem, i, j, ColorMap[k].to);
 539                     break;
 540                 }
 541             }
 542         }
 543     }
 544
 545
 546     SelectObject(hdcMem, hbmOld);
 547     DeleteObject(hdcMem);
 548   }
 549
 550 }
 551
 552 // Some experiments...
 553 #if 0
 554   // What we want to do is create another bitmap which has a depth of 4,
 555   // and set the bits. So probably we want to convert this HBITMAP into a
 556   // DIB, then call SetDIBits.
 557   // AAAGH. The stupid thing is that if newBitmap has a depth of 4 (less than that of
 558   // the screen), then SetDIBits fails.
 559   HBITMAP newBitmap = ::CreateBitmap(totalBitmapWidth, totalBitmapHeight, 1, 4, NULL);
 560   HANDLE newDIB = ::BitmapToDIB((HBITMAP) m_hBitmap, NULL);
 561   LPBITMAPINFOHEADER lpbmi = (LPBITMAPINFOHEADER) GlobalLock(newDIB);
 562
 563   dc = ::GetDC(NULL);
 564 //  LPBITMAPINFOHEADER lpbmi = (LPBITMAPINFOHEADER) newDIB;
 565
 566   int result = ::SetDIBits(dc, newBitmap, 0, lpbmi->biHeight, FindDIBBits((LPSTR)lpbmi), (LPBITMAPINFO)lpbmi,
 567     DIB_PAL_COLORS);
 568   DWORD err = GetLastError();
 569
 570   ::ReleaseDC(NULL, dc);
 571
 572   // Delete the DIB
 573   GlobalUnlock (newDIB);
 574   GlobalFree (newDIB);
 575
 576 //  WXHBITMAP hBitmap2 = wxCreateMappedBitmap((WXHINSTANCE) wxGetInstance(), (WXHBITMAP) m_hBitmap);
 577   // Substitute our new bitmap for the old one
 578   ::DeleteObject((HBITMAP) m_hBitmap);
 579   m_hBitmap = (WXHBITMAP) newBitmap;
 580 #endif
 581
 582
 583 #endif