src/msw/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for MSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     24.09.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   9 // License:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/toplevel.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/app.h"
  31     #include "wx/dialog.h"
  32     #include "wx/string.h"
  33     #include "wx/log.h"
  34     #include "wx/intl.h"
  35     #include "wx/frame.h"
  36     #include "wx/containr.h"        // wxSetFocusToChild()
  37 #endif //WX_PRECOMP
  38
  39 #include "wx/module.h"
  40 #include "wx/dynlib.h"
  41
  42 #include "wx/msw/private.h"
  43 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__)
  44   #include <ole2.h>
  45   #include <shellapi.h>
  46   // Standard SDK doesn't have aygshell.dll: see include/wx/msw/wince/libraries.h
  47   #if _WIN32_WCE < 400 || !defined(__WINCE_STANDARDSDK__)
  48     #include <aygshell.h>
  49   #endif
  50 #include "wx/msw/wince/missing.h"
  51 #endif
  52
  53 #include "wx/msw/missing.h"
  54 #include "wx/msw/winundef.h"
  55
  56 #include "wx/display.h"
  57
  58 #ifndef ICON_BIG
  59     #define ICON_BIG 1
  60 #endif
  61
  62 #ifndef ICON_SMALL
  63     #define ICON_SMALL 0
  64 #endif
  65
  66 // ----------------------------------------------------------------------------
  67 // stubs for missing functions under MicroWindows
  68 // ----------------------------------------------------------------------------
  69
  70 #ifdef __WXMICROWIN__
  71
  72 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return false; }
  73 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return false; }
  74
  75 #endif // __WXMICROWIN__
  76
  77 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  78 //     is not included by wxUniv build which does need wxDlgProc
  79 LONG APIENTRY _EXPORT
  80 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  81
  82 // ----------------------------------------------------------------------------
  83 // globals
  84 // ----------------------------------------------------------------------------
  85
  86 // the name of the default wxWidgets class
  87 #ifdef __WXWINCE__
  88 extern       wxChar *wxCanvasClassName;
  89 #else
  90 extern const wxChar *wxCanvasClassName;
  91 #endif
  92
  93 // ----------------------------------------------------------------------------
  94 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  95 // module to ensure that the window is always deleted)
  96 // ----------------------------------------------------------------------------
  97
  98 class wxTLWHiddenParentModule : public wxModule
  99 {
 100 public:
 101     // module init/finalize
 102     virtual bool OnInit();
 103     virtual void OnExit();
 104
 105     // get the hidden window (creates on demand)
 106     static HWND GetHWND();
 107
 108 private:
 109     // the HWND of the hidden parent
 110     static HWND ms_hwnd;
 111
 112     // the class used to create it
 113     static const wxChar *ms_className;
 114
 115     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 116 };
 117
 118 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 119
 120 // ============================================================================
 121 // wxTopLevelWindowMSW implementation
 122 // ============================================================================
 123
 124 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 125     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 126 END_EVENT_TABLE()
 127
 128 // ----------------------------------------------------------------------------
 129 // wxTopLevelWindowMSW creation
 130 // ----------------------------------------------------------------------------
 131
 132 void wxTopLevelWindowMSW::Init()
 133 {
 134     m_iconized =
 135     m_maximizeOnShow = false;
 136
 137     // Data to save/restore when calling ShowFullScreen
 138     m_fsStyle = 0;
 139     m_fsOldWindowStyle = 0;
 140     m_fsIsMaximized = false;
 141     m_fsIsShowing = false;
 142
 143     m_winLastFocused = (wxWindow *)NULL;
 144
 145 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 146     m_MenuBarHWND = 0;
 147 #endif
 148
 149 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 150     SHACTIVATEINFO* info = new SHACTIVATEINFO;
 151     wxZeroMemory(*info);
 152     info->cbSize = sizeof(SHACTIVATEINFO);
 153
 154     m_activateInfo = (void*) info;
 155 #endif
 156 }
 157
 158 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 159 {
 160     // let the base class deal with the common styles but fix the ones which
 161     // don't make sense for us (we also deal with the borders ourselves)
 162     WXDWORD msflags = wxWindow::MSWGetStyle
 163                       (
 164                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 165                       ) & ~WS_CHILD & ~WS_VISIBLE;
 166
 167     // For some reason, WS_VISIBLE needs to be defined on creation for
 168     // SmartPhone 2003. The title can fail to be displayed otherwise.
 169 #if defined(__SMARTPHONE__) || (defined(__WXWINCE__) && _WIN32_WCE < 400)
 170     msflags |= WS_VISIBLE;
 171     ((wxTopLevelWindowMSW*)this)->wxWindowBase::Show(true);
 172 #endif
 173
 174     // first select the kind of window being created
 175     //
 176     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 177     // creates a window with both caption and border, hence we need to use
 178     // WS_POPUP in a few cases just to avoid having caption/border which we
 179     // don't want
 180
 181     // border and caption styles
 182     if ( ( style & wxRESIZE_BORDER ) && !IsAlwaysMaximized())
 183         msflags |= WS_THICKFRAME;
 184     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 185         *exflags |= WS_EX_DLGMODALFRAME;
 186     else if ( !(style & wxBORDER_NONE) )
 187         msflags |= WS_BORDER;
 188 #ifndef __POCKETPC__
 189     else
 190         msflags |= WS_POPUP;
 191 #endif
 192
 193     // normally we consider that all windows without a caption must be popups,
 194     // but CE is an exception: there windows normally do not have the caption
 195     // but shouldn't be made popups as popups can't have menus and don't look
 196     // like normal windows anyhow
 197
 198     // TODO: Smartphone appears to like wxCAPTION, but we should check that
 199     // we need it.
 200 #if defined(__SMARTPHONE__) || !defined(__WXWINCE__)
 201     if ( style & wxCAPTION )
 202         msflags |= WS_CAPTION;
 203 #ifndef __WXWINCE__
 204     else
 205         msflags |= WS_POPUP;
 206 #endif // !__WXWINCE__
 207 #endif
 208
 209     // next translate the individual flags
 210
 211     // WS_EX_CONTEXTHELP is incompatible with WS_MINIMIZEBOX and WS_MAXIMIZEBOX
 212     // and is ignored if we specify both of them, but chances are that if we
 213     // use wxWS_EX_CONTEXTHELP, we really do want to have the context help
 214     // button while wxMINIMIZE/wxMAXIMIZE are included by default, so the help
 215     // takes precedence
 216     if ( !(GetExtraStyle() & wxWS_EX_CONTEXTHELP) )
 217     {
 218         if ( style & wxMINIMIZE_BOX )
 219             msflags |= WS_MINIMIZEBOX;
 220         if ( style & wxMAXIMIZE_BOX )
 221             msflags |= WS_MAXIMIZEBOX;
 222     }
 223
 224 #ifndef __WXWINCE__
 225     if ( style & wxSYSTEM_MENU )
 226         msflags |= WS_SYSMENU;
 227 #endif
 228
 229     // NB: under CE these 2 styles are not supported currently, we should
 230     //     call Minimize()/Maximize() "manually" if we want to support them
 231     if ( style & wxMINIMIZE )
 232         msflags |= WS_MINIMIZE;
 233
 234     if ( style & wxMAXIMIZE )
 235         msflags |= WS_MAXIMIZE;
 236
 237     // Keep this here because it saves recoding this function in wxTinyFrame
 238     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 239         msflags |= WS_CAPTION;
 240
 241     if ( exflags )
 242     {
 243         // there is no taskbar under CE, so omit all this
 244 #if !defined(__WXWINCE__)
 245         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 246         {
 247             if ( style & wxFRAME_TOOL_WINDOW )
 248             {
 249                 // create the palette-like window
 250                 *exflags |= WS_EX_TOOLWINDOW;
 251
 252                 // tool windows shouldn't appear on the taskbar (as documented)
 253                 style |= wxFRAME_NO_TASKBAR;
 254             }
 255
 256             // We have to solve 2 different problems here:
 257             //
 258             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 259             //    taskbar even if they don't have a parent
 260             //
 261             // 2. frames without this style should appear in the taskbar even
 262             //    if they're owned (Windows only puts non owned windows into
 263             //    the taskbar normally)
 264             //
 265             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 266             // first one is dealt with in our MSWGetParent() method
 267             // implementation
 268             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 269             {
 270                 // need to force the frame to appear in the taskbar
 271                 *exflags |= WS_EX_APPWINDOW;
 272             }
 273             //else: nothing to do [here]
 274         }
 275
 276         if ( GetExtraStyle() & wxWS_EX_CONTEXTHELP )
 277             *exflags |= WS_EX_CONTEXTHELP;
 278 #endif // !__WXWINCE__
 279
 280         if ( style & wxSTAY_ON_TOP )
 281             *exflags |= WS_EX_TOPMOST;
 282     }
 283
 284     return msflags;
 285 }
 286
 287 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 288 {
 289     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 290     // parent HWND or it would be always on top of its parent which is not what
 291     // we usually want (in fact, we only want it for frames with the
 292     // wxFRAME_FLOAT_ON_PARENT flag)
 293     HWND hwndParent = NULL;
 294     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 295     {
 296         const wxWindow *parent = GetParent();
 297
 298         if ( !parent )
 299         {
 300             // this flag doesn't make sense then and will be ignored
 301             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 302         }
 303         else
 304         {
 305             hwndParent = GetHwndOf(parent);
 306         }
 307     }
 308     //else: don't float on parent, must not be owned
 309
 310     // now deal with the 2nd taskbar-related problem (see comments above in
 311     // MSWGetStyle())
 312     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 313     {
 314         // use hidden parent
 315         hwndParent = wxTLWHiddenParentModule::GetHWND();
 316     }
 317
 318     return (WXHWND)hwndParent;
 319 }
 320
 321 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 322 bool wxTopLevelWindowMSW::HandleSettingChange(WXWPARAM wParam, WXLPARAM lParam)
 323 {
 324     SHACTIVATEINFO *info = (SHACTIVATEINFO*) m_activateInfo;
 325     if ( info )
 326     {
 327         SHHandleWMSettingChange(GetHwnd(), wParam, lParam, info);
 328     }
 329
 330     return wxWindowMSW::HandleSettingChange(wParam, lParam);
 331 }
 332 #endif
 333
 334 WXLRESULT wxTopLevelWindowMSW::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 335 {
 336     WXLRESULT rc = 0;
 337     bool processed = false;
 338
 339 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 340     switch ( message )
 341     {
 342         case WM_ACTIVATE:
 343         {
 344             SHACTIVATEINFO* info = (SHACTIVATEINFO*) m_activateInfo;
 345             if (info)
 346             {
 347                 DWORD flags = 0;
 348                 if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) flags = SHA_INPUTDIALOG;
 349                 SHHandleWMActivate(GetHwnd(), wParam, lParam, info, flags);
 350             }
 351
 352             // This implicitly sends a wxEVT_ACTIVATE_APP event
 353             if (wxTheApp)
 354                 wxTheApp->SetActive(wParam != 0, FindFocus());
 355
 356             break;
 357         }
 358         case WM_HIBERNATE:
 359         {
 360             if (wxTheApp)
 361             {
 362                 wxActivateEvent event(wxEVT_HIBERNATE, true, wxID_ANY);
 363                 event.SetEventObject(wxTheApp);
 364                 processed = wxTheApp->ProcessEvent(event);
 365             }
 366             break;
 367         }
 368     }
 369 #endif
 370
 371     if ( !processed )
 372         rc = wxTopLevelWindowBase::MSWWindowProc(message, wParam, lParam);
 373
 374     return rc;
 375 }
 376
 377 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 378                                        const wxString& title,
 379                                        const wxPoint& pos,
 380                                        const wxSize& size)
 381 {
 382 #ifdef __WXMICROWIN__
 383     // no dialogs support under MicroWin yet
 384     return CreateFrame(title, pos, size);
 385 #else // !__WXMICROWIN__
 386     wxWindow *parent = GetParent();
 387
 388     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 389     // app window as parent - this avoids creating modal dialogs without
 390     // parent
 391     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 392     {
 393         parent = wxTheApp->GetTopWindow();
 394
 395         if ( parent )
 396         {
 397             // don't use transient windows as parents, this is dangerous as it
 398             // can lead to a crash if the parent is destroyed before the child
 399             //
 400             // also don't use the window which is currently hidden as then the
 401             // dialog would be hidden as well
 402             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 403                     !parent->IsShown() )
 404             {
 405                 parent = NULL;
 406             }
 407         }
 408     }
 409
 410     m_hWnd = (WXHWND)::CreateDialogIndirect
 411                        (
 412                         wxGetInstance(),
 413                         (DLGTEMPLATE*)dlgTemplate,
 414                         parent ? GetHwndOf(parent) : NULL,
 415                         (DLGPROC)wxDlgProc
 416                        );
 417
 418     if ( !m_hWnd )
 419     {
 420         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 421
 422         wxLogSysError(wxT("Can't create dialog using memory template"));
 423
 424         return false;
 425     }
 426
 427     WXDWORD exflags;
 428     (void)MSWGetCreateWindowFlags(&exflags);
 429
 430     if ( exflags )
 431     {
 432         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 433         ::SetWindowPos(GetHwnd(),
 434                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 435                        0, 0, 0, 0,
 436                        SWP_NOSIZE |
 437                        SWP_NOMOVE |
 438                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 439                        SWP_NOACTIVATE);
 440     }
 441
 442 #if !defined(__WXWINCE__)
 443     // For some reason, the system menu is activated when we use the
 444     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 445     if ( exflags & WS_EX_CONTEXTHELP )
 446     {
 447         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 448         if ( winTop )
 449         {
 450             wxIcon icon = winTop->GetIcon();
 451             if ( icon.Ok() )
 452             {
 453                 ::SendMessage(GetHwnd(), WM_SETICON,
 454                               (WPARAM)TRUE,
 455                               (LPARAM)GetHiconOf(icon));
 456             }
 457         }
 458     }
 459 #endif
 460
 461     // move the dialog to its initial position without forcing repainting
 462     int x, y, w, h;
 463     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 464
 465     if ( x == (int)CW_USEDEFAULT )
 466     {
 467         // centre it on the screen - what else can we do?
 468         wxSize sizeDpy = wxGetDisplaySize();
 469
 470         x = (sizeDpy.x - w) / 2;
 471         y = (sizeDpy.y - h) / 2;
 472     }
 473
 474 #if !defined(__WXWINCE__) || defined(__WINCE_STANDARDSDK__)
 475     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 476     {
 477         wxLogLastError(wxT("MoveWindow"));
 478     }
 479 #endif
 480
 481     if ( !title.empty() )
 482     {
 483         ::SetWindowText(GetHwnd(), title);
 484     }
 485
 486     SubclassWin(m_hWnd);
 487
 488 #ifdef __SMARTPHONE__
 489     // Work around title non-display glitch
 490     Show(false);
 491 #endif
 492
 493     return true;
 494 #endif // __WXMICROWIN__/!__WXMICROWIN__
 495 }
 496
 497 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 498                                       const wxPoint& pos,
 499                                       const wxSize& size)
 500 {
 501     WXDWORD exflags;
 502     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 503
 504     const wxSize sz = IsAlwaysMaximized() ? wxDefaultSize : size;
 505
 506     return MSWCreate(wxCanvasClassName, title, pos, sz, flags, exflags);
 507 }
 508
 509 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 510                                  wxWindowID id,
 511                                  const wxString& title,
 512                                  const wxPoint& pos,
 513                                  const wxSize& size,
 514                                  long style,
 515                                  const wxString& name)
 516 {
 517     bool ret wxDUMMY_INITIALIZE(false);
 518
 519     // init our fields
 520     Init();
 521
 522     wxSize sizeReal = size;
 523     if ( !sizeReal.IsFullySpecified() )
 524     {
 525         sizeReal.SetDefaults(GetDefaultSize());
 526     }
 527
 528     m_windowStyle = style;
 529
 530     SetName(name);
 531
 532     m_windowId = id == wxID_ANY ? NewControlId() : id;
 533
 534     wxTopLevelWindows.Append(this);
 535
 536     if ( parent )
 537         parent->AddChild(this);
 538
 539     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 540     {
 541         // we have different dialog templates to allows creation of dialogs
 542         // with & without captions under MSWindows, resizeable or not (but a
 543         // resizeable dialog always has caption - otherwise it would look too
 544         // strange)
 545
 546         // we need 3 additional WORDs for dialog menu, class and title (as we
 547         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 548         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 549         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 550         memset(dlgTemplate, 0, dlgsize);
 551
 552         // these values are arbitrary, they won't be used normally anyhow
 553         dlgTemplate->x  = 34;
 554         dlgTemplate->y  = 22;
 555         dlgTemplate->cx = 144;
 556         dlgTemplate->cy = 75;
 557
 558         // reuse the code in MSWGetStyle() but correct the results slightly for
 559         // the dialog
 560         dlgTemplate->style = MSWGetStyle(style, NULL);
 561
 562         // all dialogs are popups
 563         dlgTemplate->style |= WS_POPUP;
 564
 565 #ifndef __WXWINCE__
 566         // force 3D-look if necessary, it looks impossibly ugly otherwise
 567         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 568             dlgTemplate->style |= DS_MODALFRAME;
 569 #endif
 570
 571         ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
 572         free(dlgTemplate);
 573     }
 574     else // !dialog
 575     {
 576         ret = CreateFrame(title, pos, sizeReal);
 577     }
 578
 579 #ifndef __WXWINCE__
 580     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 581     {
 582         EnableCloseButton(false);
 583     }
 584 #endif
 585
 586     // for standard dialogs the dialog manager generates WM_CHANGEUISTATE
 587     // itself but for custom windows we have to do it ourselves in order to
 588     // make the keyboard indicators (such as underlines for accelerators and
 589     // focus rectangles) work under Win2k+
 590     if ( ret )
 591     {
 592         MSWUpdateUIState(UIS_INITIALIZE);
 593     }
 594
 595     // Note: if we include PocketPC in this test, dialogs can fail to show up,
 596     // for example the text entry dialog in the dialogs sample. Problem with Maximise()?
 597 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__WINCE_STANDARDSDK__))
 598     if ( ( style & wxMAXIMIZE ) || IsAlwaysMaximized() )
 599     {
 600         this->Maximize();
 601     }
 602 #endif
 603
 604 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 605     SetRightMenu(); // to nothing for initialization
 606 #endif
 607
 608     return ret;
 609 }
 610
 611 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 612 {
 613 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 614     SHACTIVATEINFO* info = (SHACTIVATEINFO*) m_activateInfo;
 615     delete info;
 616     m_activateInfo = NULL;
 617 #endif
 618
 619     // after destroying an owned window, Windows activates the next top level
 620     // window in Z order but it may be different from our owner (to reproduce
 621     // this simply Alt-TAB to another application and back before closing the
 622     // owned frame) whereas we always want to yield activation to our parent
 623     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 624     {
 625         wxWindow *parent = GetParent();
 626         if ( parent )
 627         {
 628             ::BringWindowToTop(GetHwndOf(parent));
 629         }
 630     }
 631 }
 632
 633 // ----------------------------------------------------------------------------
 634 // wxTopLevelWindowMSW showing
 635 // ----------------------------------------------------------------------------
 636
 637 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 638 {
 639     ::ShowWindow(GetHwnd(), nShowCmd);
 640
 641     m_iconized = nShowCmd == SW_MINIMIZE;
 642 }
 643
 644 bool wxTopLevelWindowMSW::Show(bool show)
 645 {
 646     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 647     if ( !wxWindowBase::Show(show) )
 648         return false;
 649
 650     int nShowCmd;
 651     if ( show )
 652     {
 653         if ( m_maximizeOnShow )
 654         {
 655             // show and maximize
 656             nShowCmd = SW_MAXIMIZE;
 657
 658             // This is necessary, or no window appears
 659 #if defined( __WINCE_STANDARDSDK__) || defined(__SMARTPHONE__)
 660             DoShowWindow(SW_SHOW);
 661 #endif
 662
 663             m_maximizeOnShow = false;
 664         }
 665         else // just show
 666         {
 667            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 668                nShowCmd = SW_SHOWNA;
 669            else
 670                nShowCmd = SW_SHOW;
 671         }
 672     }
 673     else // hide
 674     {
 675         nShowCmd = SW_HIDE;
 676     }
 677
 678     DoShowWindow(nShowCmd);
 679
 680 #if defined(__WXWINCE__) && (_WIN32_WCE >= 400 && !defined(__POCKETPC__) && !defined(__SMARTPHONE__))
 681     // Addornments have to be added when the frame is the correct size
 682     wxFrame* frame = wxDynamicCast(this, wxFrame);
 683     if (frame && frame->GetMenuBar())
 684         frame->GetMenuBar()->AddAdornments(GetWindowStyleFlag());
 685 #endif
 686
 687     // we only set pending size if we're maximized before being shown, now that
 688     // we're shown we don't need it any more (it is reset in size event handler
 689     // for child windows but we have to do it ourselves for this parent window)
 690     m_pendingSize = wxDefaultSize;
 691
 692     return true;
 693 }
 694
 695 // ----------------------------------------------------------------------------
 696 // wxTopLevelWindowMSW maximize/minimize
 697 // ----------------------------------------------------------------------------
 698
 699 void wxTopLevelWindowMSW::Maximize(bool maximize)
 700 {
 701     if ( IsShown() )
 702     {
 703         // just maximize it directly
 704         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 705     }
 706     else // hidden
 707     {
 708         // we can't maximize the hidden frame because it shows it as well,
 709         // so just remember that we should do it later in this case
 710         m_maximizeOnShow = maximize;
 711
 712         // after calling Maximize() the client code expects to get the frame
 713         // "real" size and doesn't want to know that, because of implementation
 714         // details, the frame isn't really maximized yet but will be only once
 715         // it's shown, so return our size as it will be then in this case
 716         if ( maximize )
 717         {
 718             // we must only change pending size here, and not call SetSize()
 719             // because otherwise Windows would think that this (full screen)
 720             // size is the natural size for the frame and so would use it when
 721             // the user clicks on "restore" title bar button instead of the
 722             // correct initial frame size
 723             //
 724             // NB: unfortunately we don't know which display we're on yet so we
 725             //     have to use the default one
 726             m_pendingSize = wxGetClientDisplayRect().GetSize();
 727         }
 728         //else: can't do anything in this case, we don't have the old size
 729     }
 730 }
 731
 732 bool wxTopLevelWindowMSW::IsMaximized() const
 733 {
 734     return IsAlwaysMaximized() ||
 735 #if !defined(__SMARTPHONE__) && !defined(__POCKETPC__)
 736            (::IsZoomed(GetHwnd()) != 0) ||
 737 #endif
 738            m_maximizeOnShow;
 739 }
 740
 741 void wxTopLevelWindowMSW::Iconize(bool iconize)
 742 {
 743     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 744 }
 745
 746 bool wxTopLevelWindowMSW::IsIconized() const
 747 {
 748 #ifdef __WXWINCE__
 749     return false;
 750 #else
 751     // don't use m_iconized, it may be briefly out of sync with the real state
 752     // as it's only modified when we receive a WM_SIZE and we could be called
 753     // from an event handler from one of the messages we receive before it,
 754     // such as WM_MOVE
 755     return ::IsIconic(GetHwnd()) != 0;
 756 #endif
 757 }
 758
 759 void wxTopLevelWindowMSW::Restore()
 760 {
 761     DoShowWindow(SW_RESTORE);
 762 }
 763
 764 // ----------------------------------------------------------------------------
 765 // wxTopLevelWindowMSW fullscreen
 766 // ----------------------------------------------------------------------------
 767
 768 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 769 {
 770     if ( show == IsFullScreen() )
 771     {
 772         // nothing to do
 773         return true;
 774     }
 775
 776     m_fsIsShowing = show;
 777
 778     if ( show )
 779     {
 780         m_fsStyle = style;
 781
 782         // zap the frame borders
 783
 784         // save the 'normal' window style
 785         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 786
 787         // save the old position, width & height, maximize state
 788         m_fsOldSize = GetRect();
 789         m_fsIsMaximized = IsMaximized();
 790
 791         // decide which window style flags to turn off
 792         LONG newStyle = m_fsOldWindowStyle;
 793         LONG offFlags = 0;
 794
 795         if (style & wxFULLSCREEN_NOBORDER)
 796         {
 797             offFlags |= WS_BORDER;
 798 #ifndef __WXWINCE__
 799             offFlags |= WS_THICKFRAME;
 800 #endif
 801         }
 802         if (style & wxFULLSCREEN_NOCAPTION)
 803             offFlags |= WS_CAPTION | WS_SYSMENU;
 804
 805         newStyle &= ~offFlags;
 806
 807         // change our window style to be compatible with full-screen mode
 808         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 809
 810         wxRect rect;
 811 #if wxUSE_DISPLAY
 812         // resize to the size of the display containing us
 813         int dpy = wxDisplay::GetFromWindow(this);
 814         if ( dpy != wxNOT_FOUND )
 815         {
 816             rect = wxDisplay(dpy).GetGeometry();
 817         }
 818         else // fall back to the main desktop
 819 #endif // wxUSE_DISPLAY
 820         {
 821             // resize to the size of the desktop
 822             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 823 #ifdef __WXWINCE__
 824             // FIXME: size of the bottom menu (toolbar)
 825             // should be taken in account
 826             rect.height += rect.y;
 827             rect.y       = 0;
 828 #endif
 829         }
 830
 831         SetSize(rect);
 832
 833         // now flush the window style cache and actually go full-screen
 834         long flags = SWP_FRAMECHANGED;
 835
 836         // showing the frame full screen should also show it if it's still
 837         // hidden
 838         if ( !IsShown() )
 839         {
 840             // don't call wxWindow version to avoid flicker from calling
 841             // ::ShowWindow() -- we're going to show the window at the correct
 842             // location directly below -- but do call the wxWindowBase version
 843             // to sync the internal m_isShown flag
 844             wxWindowBase::Show();
 845
 846             flags |= SWP_SHOWWINDOW;
 847         }
 848
 849         SetWindowPos(GetHwnd(), HWND_TOP,
 850                      rect.x, rect.y, rect.width, rect.height,
 851                      flags);
 852
 853 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 854         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 855 #endif
 856
 857         // finally send an event allowing the window to relayout itself &c
 858         wxSizeEvent event(rect.GetSize(), GetId());
 859         GetEventHandler()->ProcessEvent(event);
 860     }
 861     else // stop showing full screen
 862     {
 863 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 864         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 865 #endif
 866         Maximize(m_fsIsMaximized);
 867         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 868         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 869             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 870     }
 871
 872     return true;
 873 }
 874
 875 // ----------------------------------------------------------------------------
 876 // wxTopLevelWindowMSW misc
 877 // ----------------------------------------------------------------------------
 878
 879 void wxTopLevelWindowMSW::SetTitle( const wxString& title)
 880 {
 881     SetLabel(title);
 882 }
 883
 884 wxString wxTopLevelWindowMSW::GetTitle() const
 885 {
 886     return GetLabel();
 887 }
 888
 889 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 890 {
 891     SetIcons( wxIconBundle( icon ) );
 892 }
 893
 894 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 895 {
 896     wxTopLevelWindowBase::SetIcons(icons);
 897
 898 #if !defined(__WXMICROWIN__)
 899     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 900     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 901     {
 902         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 903                        (LPARAM)GetHiconOf(sml) );
 904     }
 905
 906     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 907     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 908     {
 909         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 910                        (LPARAM)GetHiconOf(big) );
 911     }
 912 #endif // !__WXMICROWIN__
 913 }
 914
 915 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 916 {
 917 #if !defined(__WXMICROWIN__)
 918     // get system (a.k.a. window) menu
 919     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 920     if ( !hmenu )
 921     {
 922         // no system menu at all -- ok if we want to remove the close button
 923         // anyhow, but bad if we want to show it
 924         return !enable;
 925     }
 926
 927     // enabling/disabling the close item from it also automatically
 928     // disables/enables the close title bar button
 929     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 930                           MF_BYCOMMAND |
 931                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 932     {
 933         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 934
 935         return false;
 936     }
 937 #ifndef __WXWINCE__
 938     // update appearance immediately
 939     if ( !::DrawMenuBar(GetHwnd()) )
 940     {
 941         wxLogLastError(_T("DrawMenuBar"));
 942     }
 943 #endif
 944 #endif // !__WXMICROWIN__
 945
 946     return true;
 947 }
 948
 949 #ifndef __WXWINCE__
 950
 951 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 952 {
 953     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
 954                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 955
 956     // The empty region signifies that the shape should be removed from the
 957     // window.
 958     if ( region.IsEmpty() )
 959     {
 960         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 961         {
 962             wxLogLastError(_T("SetWindowRgn"));
 963             return false;
 964         }
 965         return true;
 966     }
 967
 968     // Windows takes ownership of the region, so
 969     // we'll have to make a copy of the region to give to it.
 970     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 971     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 972     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 973     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 974     delete[] (char*) rgnData;
 975
 976     // SetWindowRgn expects the region to be in coordinants
 977     // relative to the window, not the client area.  Figure
 978     // out the offset, if any.
 979     RECT rect;
 980     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 981     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 982     ::GetClientRect(GetHwnd(), &rect);
 983     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 984     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 985
 986     // Now call the shape API with the new region.
 987     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 988     {
 989         wxLogLastError(_T("SetWindowRgn"));
 990         return false;
 991     }
 992     return true;
 993 }
 994
 995 #endif // !__WXWINCE__
 996
 997 void wxTopLevelWindowMSW::RequestUserAttention(int flags)
 998 {
 999     // check if we can use FlashWindowEx(): unfortunately a simple test for
1000     // FLASHW_STOP doesn't work because MSVC6 headers do #define it but don't
1001     // provide FlashWindowEx() declaration, so try to detect whether we have
1002     // real headers for WINVER 0x0500 by checking for existence of a symbol not
1003     // declated in MSVC6 header
1004 #if defined(FLASHW_STOP) && defined(VK_XBUTTON1)
1005     // available in the headers, check if it is supported by the system
1006     typedef BOOL (WINAPI *FlashWindowEx_t)(FLASHWINFO *pfwi);
1007     FlashWindowEx_t s_pfnFlashWindowEx = NULL;
1008     if ( !s_pfnFlashWindowEx )
1009     {
1010         wxDynamicLibrary dllUser32(_T("user32.dll"));
1011         s_pfnFlashWindowEx = (FlashWindowEx_t)
1012                                 dllUser32.GetSymbol(_T("FlashWindowEx"));
1013
1014         // we can safely unload user32.dll here, it's going to remain loaded as
1015         // long as the program is running anyhow
1016     }
1017
1018     if ( s_pfnFlashWindowEx )
1019     {
1020         WinStruct<FLASHWINFO> fwi;
1021         fwi.hwnd = GetHwnd();
1022         fwi.dwFlags = FLASHW_ALL;
1023         if ( flags & wxUSER_ATTENTION_INFO )
1024         {
1025             // just flash a few times
1026             fwi.uCount = 3;
1027         }
1028         else // wxUSER_ATTENTION_ERROR
1029         {
1030             // flash until the user notices it
1031             fwi.dwFlags |= FLASHW_TIMERNOFG;
1032         }
1033
1034         s_pfnFlashWindowEx(&fwi);
1035     }
1036     else // FlashWindowEx() not available
1037 #endif // FlashWindowEx() defined
1038     {
1039         wxUnusedVar(flags);
1040 #ifndef __WXWINCE__
1041         ::FlashWindow(GetHwnd(), TRUE);
1042 #endif // __WXWINCE__
1043     }
1044 }
1045
1046 // ---------------------------------------------------------------------------
1047
1048 bool wxTopLevelWindowMSW::SetTransparent(wxByte alpha)
1049 {
1050     typedef DWORD (WINAPI *PSETLAYEREDWINDOWATTR)(HWND, DWORD, BYTE, DWORD);
1051     static PSETLAYEREDWINDOWATTR pSetLayeredWindowAttributes = NULL;
1052
1053     if ( pSetLayeredWindowAttributes == NULL )
1054     {
1055         wxDynamicLibrary dllUser32(_T("user32.dll"));
1056         pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)
1057             dllUser32.GetSymbol(wxT("SetLayeredWindowAttributes"));
1058     }
1059     if ( pSetLayeredWindowAttributes == NULL )
1060         return false;
1061
1062     LONG exstyle = GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1063
1064     // if setting alpha to fully opaque then turn off the layered style
1065     if (alpha == 255)
1066     {
1067         SetWindowLong(GetHwnd(), GWL_EXSTYLE, exstyle & ~WS_EX_LAYERED);
1068         Refresh();
1069         return true;
1070     }
1071
1072     // Otherwise, set the layered style if needed and set the alpha value
1073     if ((exstyle & WS_EX_LAYERED) == 0 )
1074         SetWindowLong(GetHwnd(), GWL_EXSTYLE, exstyle | WS_EX_LAYERED);
1075
1076     return pSetLayeredWindowAttributes(GetHwnd(), 0, (BYTE)alpha, LWA_ALPHA) != 0;
1077 }
1078
1079 bool wxTopLevelWindowMSW::CanSetTransparent()
1080 {
1081     // The API is available on win2k and above
1082
1083     static int os_type = -1;
1084     static int ver_major = -1;
1085
1086     if (os_type == -1)
1087         os_type = ::wxGetOsVersion(&ver_major);
1088
1089     return (os_type == wxOS_WINDOWS_NT && ver_major >= 5);
1090 }
1091
1092 // ----------------------------------------------------------------------------
1093 // wxTopLevelWindow event handling
1094 // ----------------------------------------------------------------------------
1095
1096 // Default activation behaviour - set the focus for the first child
1097 // subwindow found.
1098 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
1099 {
1100     if ( event.GetActive() )
1101     {
1102         // restore focus to the child which was last focused unless we already
1103         // have it
1104         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
1105
1106         wxWindow *winFocus = FindFocus();
1107         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
1108         {
1109             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
1110                                                 : NULL;
1111             if ( !parent )
1112             {
1113                 parent = this;
1114             }
1115
1116             wxSetFocusToChild(parent, &m_winLastFocused);
1117         }
1118     }
1119     else // deactivating
1120     {
1121         // remember the last focused child if it is our child
1122         m_winLastFocused = FindFocus();
1123
1124         if ( m_winLastFocused )
1125         {
1126             // let it know that it doesn't have focus any more
1127             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
1128
1129             // and don't remember it if it's a child from some other frame
1130             if ( wxGetTopLevelParent(m_winLastFocused) != this )
1131             {
1132                 m_winLastFocused = NULL;
1133             }
1134         }
1135
1136         wxLogTrace(_T("focus"),
1137                    _T("wxTLW %08x deactivated, last focused: %08x."),
1138                    (int) m_hWnd,
1139                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
1140                                            : NULL));
1141
1142         event.Skip();
1143     }
1144 }
1145
1146 // the DialogProc for all wxWidgets dialogs
1147 LONG APIENTRY _EXPORT
1148 wxDlgProc(HWND hDlg,
1149           UINT message,
1150           WPARAM WXUNUSED(wParam),
1151           LPARAM WXUNUSED(lParam))
1152 {
1153     switch ( message )
1154     {
1155         case WM_INITDIALOG:
1156         {
1157             // under CE, add a "Ok" button in the dialog title bar and make it full
1158             // screen
1159             //
1160             // TODO: find the window for this HWND, and take into account
1161             // wxMAXIMIZE and wxCLOSE_BOX. For now, assume both are present.
1162             //
1163             // Standard SDK doesn't have aygshell.dll: see
1164             // include/wx/msw/wince/libraries.h
1165 #if defined(__WXWINCE__) && !defined(__WINCE_STANDARDSDK__) && !defined(__HANDHELDPC__)
1166             SHINITDLGINFO shidi;
1167             shidi.dwMask = SHIDIM_FLAGS;
1168             shidi.dwFlags = SHIDIF_SIZEDLG // take account of the SIP or menubar
1169 #ifndef __SMARTPHONE__
1170                             | SHIDIF_DONEBUTTON
1171 #endif
1172                         ;
1173             shidi.hDlg = hDlg;
1174             SHInitDialog( &shidi );
1175 #else // no SHInitDialog()
1176             wxUnusedVar(hDlg);
1177 #endif
1178             // for WM_INITDIALOG, returning TRUE tells system to set focus to
1179             // the first control in the dialog box, but as we set the focus
1180             // ourselves, we return FALSE for it as well
1181             return FALSE;
1182         }
1183     }
1184
1185     // for almost all messages, returning FALSE means that we didn't process
1186     // the message
1187     return FALSE;
1188 }
1189
1190 // ============================================================================
1191 // wxTLWHiddenParentModule implementation
1192 // ============================================================================
1193
1194 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
1195
1196 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
1197
1198 bool wxTLWHiddenParentModule::OnInit()
1199 {
1200     ms_hwnd = NULL;
1201     ms_className = NULL;
1202
1203     return true;
1204 }
1205
1206 void wxTLWHiddenParentModule::OnExit()
1207 {
1208     if ( ms_hwnd )
1209     {
1210         if ( !::DestroyWindow(ms_hwnd) )
1211         {
1212             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1213         }
1214
1215         ms_hwnd = NULL;
1216     }
1217
1218     if ( ms_className )
1219     {
1220         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1221         {
1222             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
1223         }
1224
1225         ms_className = NULL;
1226     }
1227 }
1228
1229 /* static */
1230 HWND wxTLWHiddenParentModule::GetHWND()
1231 {
1232     if ( !ms_hwnd )
1233     {
1234         if ( !ms_className )
1235         {
1236             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1237
1238             WNDCLASS wndclass;
1239             wxZeroMemory(wndclass);
1240
1241             wndclass.lpfnWndProc   = DefWindowProc;
1242             wndclass.hInstance     = wxGetInstance();
1243             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1244
1245             if ( !::RegisterClass(&wndclass) )
1246             {
1247                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1248             }
1249             else
1250             {
1251                 ms_className = HIDDEN_PARENT_CLASS;
1252             }
1253         }
1254
1255         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1256                                  (HMENU)NULL, wxGetInstance(), NULL);
1257         if ( !ms_hwnd )
1258         {
1259             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1260         }
1261     }
1262
1263     return ms_hwnd;
1264 }