dlls/mshtml/view.c

   1 /*
   2  * Copyright 2005 Jacek Caban
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23
  24 #define COBJMACROS
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winuser.h"
  29 #include "wingdi.h"
  30 #include "ole2.h"
  31
  32 #include "wine/debug.h"
  33
  34 #include "mshtml_private.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  37
  38 static const WCHAR wszInternetExplorer_Server[] =
  39     {'I','n','t','e','r','n','e','t',' ','E','x','p','l','o','r','e','r','_','S','e','r','v','e','r',0};
  40 static const WCHAR wszHTML_Document[] =
  41     {'H','T','M','L',' ','D','o','c','u','m','e','n','t',0};
  42
  43 static ATOM serverwnd_class = 0;
  44
  45 static void paint_disabled(HWND hwnd) {
  46     HDC hdc;
  47     PAINTSTRUCT ps;
  48     HBRUSH brush;
  49     RECT rect;
  50     HFONT font;
  51
  52     font = CreateFontA(25,0,0,0,400,0,0,0,ANSI_CHARSET,0,0,DEFAULT_QUALITY,DEFAULT_PITCH,NULL);
  53     brush = CreateSolidBrush(RGB(255,255,255));
  54     GetClientRect(hwnd, &rect);
  55
  56     hdc = BeginPaint(hwnd, &ps);
  57     SelectObject(hdc, font);
  58     SelectObject(hdc, brush);
  59     Rectangle(hdc, rect.left, rect.top, rect.right, rect.bottom);
  60     DrawTextA(hdc, "HTML rendering is currently disabled.",-1, &rect,
  61             DT_CENTER | DT_SINGLELINE | DT_VCENTER);
  62     EndPaint(hwnd, &ps);
  63
  64     DeleteObject(font);
  65     DeleteObject(brush);
  66 }
  67
  68 static void activate_gecko(HTMLDocument *This)
  69 {
  70     TRACE("(%p) %p\n", This, This->nscontainer->window);
  71
  72     SetParent(This->nscontainer->hwnd, This->hwnd);
  73     ShowWindow(This->nscontainer->hwnd, SW_SHOW);
  74
  75     nsIBaseWindow_SetVisibility(This->nscontainer->window, TRUE);
  76     nsIBaseWindow_SetEnabled(This->nscontainer->window, TRUE);
  77 }
  78
  79 static LRESULT WINAPI serverwnd_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
  80 {
  81     HTMLDocument *This;
  82
  83     static const WCHAR wszTHIS[] = {'T','H','I','S',0};
  84
  85     if(msg == WM_CREATE) {
  86         This = *(HTMLDocument**)lParam;
  87         SetPropW(hwnd, wszTHIS, This);
  88     }else {
  89         This = (HTMLDocument*)GetPropW(hwnd, wszTHIS);
  90     }
  91
  92     switch(msg) {
  93     case WM_CREATE:
  94         This->hwnd = hwnd;
  95         if(This->nscontainer)
  96             activate_gecko(This);
  97         break;
  98     case WM_PAINT:
  99         if(!This->nscontainer)
 100             paint_disabled(hwnd);
 101         break;
 102     case WM_SIZE:
 103         TRACE("(%p)->(WM_SIZE)\n", This);
 104         if(This->nscontainer)
 105             SetWindowPos(This->nscontainer->hwnd, NULL, 0, 0, LOWORD(lParam), HIWORD(lParam),
 106                     SWP_NOZORDER | SWP_NOACTIVATE);
 107     }
 108
 109     return DefWindowProcW(hwnd, msg, wParam, lParam);
 110 }
 111
 112 static void register_serverwnd_class(void)
 113 {
 114     static WNDCLASSEXW wndclass = {
 115         sizeof(WNDCLASSEXW),
 116         CS_DBLCLKS,
 117         serverwnd_proc,
 118         0, 0, NULL, NULL, NULL, NULL, NULL,
 119         wszInternetExplorer_Server,
 120         NULL,
 121     };
 122     wndclass.hInstance = hInst;
 123     serverwnd_class = RegisterClassExW(&wndclass);
 124 }
 125
 126 static HRESULT activate_window(HTMLDocument *This)
 127 {
 128     IOleInPlaceUIWindow *pIPWnd;
 129     IOleInPlaceFrame *pIPFrame;
 130     RECT posrect, cliprect;
 131     OLEINPLACEFRAMEINFO frameinfo;
 132     HWND parent_hwnd;
 133     HRESULT hres;
 134
 135     if(!serverwnd_class)
 136         register_serverwnd_class();
 137
 138     hres = IOleInPlaceSite_CanInPlaceActivate(This->ipsite);
 139     if(hres != S_OK) {
 140         WARN("CanInPlaceActivate returned: %08lx\n", hres);
 141         return FAILED(hres) ? hres : E_FAIL;
 142     }
 143
 144     hres = IOleInPlaceSite_GetWindowContext(This->ipsite, &pIPFrame, &pIPWnd, &posrect, &cliprect, &frameinfo);
 145     if(FAILED(hres)) {
 146         WARN("GetWindowContext failed: %08lx\n", hres);
 147         return hres;
 148     }
 149     if(pIPWnd)
 150         IOleInPlaceUIWindow_Release(pIPWnd);
 151     TRACE("got window context: %p %p {%ld %ld %ld %ld} {%ld %ld %ld %ld} {%d %x %p %p %d}\n",
 152             pIPFrame, pIPWnd, posrect.left, posrect.top, posrect.right, posrect.bottom,
 153             cliprect.left, cliprect.top, cliprect.right, cliprect.bottom,
 154             frameinfo.cb, frameinfo.fMDIApp, frameinfo.hwndFrame, frameinfo.haccel, frameinfo.cAccelEntries);
 155
 156     hres = IOleInPlaceSite_GetWindow(This->ipsite, &parent_hwnd);
 157     if(FAILED(hres)) {
 158         WARN("GetWindow failed: %08lx\n", hres);
 159         return hres;
 160     }
 161
 162     TRACE("got parent window %p\n", parent_hwnd);
 163
 164     if(This->hwnd) {
 165         if(GetParent(This->hwnd) != parent_hwnd)
 166             SetParent(This->hwnd, parent_hwnd);
 167         SetWindowPos(This->hwnd, HWND_TOP,
 168                 posrect.left, posrect.top, posrect.right-posrect.left, posrect.bottom-posrect.top,
 169                 SWP_NOACTIVATE | SWP_SHOWWINDOW);
 170     }else {
 171         CreateWindowExW(0, wszInternetExplorer_Server, NULL,
 172                 WS_CHILD | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
 173                 posrect.left, posrect.top, posrect.right-posrect.left, posrect.bottom-posrect.top,
 174                 parent_hwnd, NULL, hInst, This);
 175
 176         TRACE("Created window %p\n", This->hwnd);
 177
 178         SetWindowPos(This->hwnd, NULL, 0, 0, 0, 0,
 179                 SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOREDRAW | SWP_NOACTIVATE | SWP_SHOWWINDOW);
 180         RedrawWindow(This->hwnd, NULL, NULL, RDW_INVALIDATE | RDW_NOERASE | RDW_ALLCHILDREN);
 181         SetFocus(This->hwnd);
 182
 183         /* NOTE:
 184          * Windows implementation calls:
 185          * RegisterWindowMessage("MSWHEEL_ROLLMSG");
 186          * SetTimer(This->hwnd, TIMER_ID, 100, NULL);
 187          */
 188     }
 189
 190     This->in_place_active = TRUE;
 191     hres = IOleInPlaceSite_OnInPlaceActivate(This->ipsite);
 192     if(FAILED(hres)) {
 193         WARN("OnInPlaceActivate failed: %08lx\n", hres);
 194         This->in_place_active = FALSE;
 195         return hres;
 196     }
 197
 198     if(This->frame)
 199         IOleInPlaceFrame_Release(This->frame);
 200     This->frame = pIPFrame;
 201
 202     This->window_active = TRUE;
 203
 204     return S_OK;
 205 }
 206
 207 /**********************************************************
 208  * IOleDocumentView implementation
 209  */
 210
 211 #define DOCVIEW_THIS(iface) DEFINE_THIS(HTMLDocument, OleDocumentView, iface)
 212
 213 static HRESULT WINAPI OleDocumentView_QueryInterface(IOleDocumentView *iface, REFIID riid, void **ppvObject)
 214 {
 215     HTMLDocument *This = DOCVIEW_THIS(iface);
 216     return IHTMLDocument2_QueryInterface(HTMLDOC(This), riid, ppvObject);
 217 }
 218
 219 static ULONG WINAPI OleDocumentView_AddRef(IOleDocumentView *iface)
 220 {
 221     HTMLDocument *This = DOCVIEW_THIS(iface);
 222     return IHTMLDocument2_AddRef(HTMLDOC(This));
 223 }
 224
 225 static ULONG WINAPI OleDocumentView_Release(IOleDocumentView *iface)
 226 {
 227     HTMLDocument *This = DOCVIEW_THIS(iface);
 228     return IHTMLDocument2_Release(HTMLDOC(This));
 229 }
 230
 231 static HRESULT WINAPI OleDocumentView_SetInPlaceSite(IOleDocumentView *iface, IOleInPlaceSite *pIPSite)
 232 {
 233     HTMLDocument *This = DOCVIEW_THIS(iface);
 234     TRACE("(%p)->(%p)\n", This, pIPSite);
 235
 236     if(pIPSite)
 237         IOleInPlaceSite_AddRef(pIPSite);
 238
 239     if(This->ipsite)
 240         IOleInPlaceSite_Release(This->ipsite);
 241
 242     This->ipsite = pIPSite;
 243     return S_OK;
 244 }
 245
 246 static HRESULT WINAPI OleDocumentView_GetInPlaceSite(IOleDocumentView *iface, IOleInPlaceSite **ppIPSite)
 247 {
 248     HTMLDocument *This = DOCVIEW_THIS(iface);
 249     TRACE("(%p)->(%p)\n", This, ppIPSite);
 250
 251     if(!ppIPSite)
 252         return E_INVALIDARG;
 253
 254     if(This->ipsite)
 255         IOleInPlaceSite_AddRef(This->ipsite);
 256
 257     *ppIPSite = This->ipsite;
 258     return S_OK;
 259 }
 260
 261 static HRESULT WINAPI OleDocumentView_GetDocument(IOleDocumentView *iface, IUnknown **ppunk)
 262 {
 263     HTMLDocument *This = DOCVIEW_THIS(iface);
 264     TRACE("(%p)->(%p)\n", This, ppunk);
 265
 266     if(!ppunk)
 267         return E_INVALIDARG;
 268
 269     IHTMLDocument2_AddRef(HTMLDOC(This));
 270     *ppunk = (IUnknown*)HTMLDOC(This);
 271     return S_OK;
 272 }
 273
 274 static HRESULT WINAPI OleDocumentView_SetRect(IOleDocumentView *iface, LPRECT prcView)
 275 {
 276     HTMLDocument *This = DOCVIEW_THIS(iface);
 277     RECT rect;
 278
 279     TRACE("(%p)->(%p)\n", This, prcView);
 280
 281     if(!prcView)
 282         return E_INVALIDARG;
 283
 284     if(This->hwnd) {
 285         GetClientRect(This->hwnd, &rect);
 286         if(memcmp(prcView, &rect, sizeof(RECT))) {
 287             InvalidateRect(This->hwnd,NULL,TRUE);
 288             SetWindowPos(This->hwnd, NULL, prcView->left, prcView->top, prcView->right,
 289                     prcView->bottom, SWP_NOZORDER | SWP_NOACTIVATE);
 290         }
 291     }
 292
 293     return S_OK;
 294 }
 295
 296 static HRESULT WINAPI OleDocumentView_GetRect(IOleDocumentView *iface, LPRECT prcView)
 297 {
 298     HTMLDocument *This = DOCVIEW_THIS(iface);
 299
 300     TRACE("(%p)->(%p)\n", This, prcView);
 301
 302     if(!prcView)
 303         return E_INVALIDARG;
 304
 305     GetClientRect(This->hwnd, prcView);
 306     return S_OK;
 307 }
 308
 309 static HRESULT WINAPI OleDocumentView_SetRectComplex(IOleDocumentView *iface, LPRECT prcView,
 310                         LPRECT prcHScroll, LPRECT prcVScroll, LPRECT prcSizeBox)
 311 {
 312     HTMLDocument *This = DOCVIEW_THIS(iface);
 313     FIXME("(%p)->(%p %p %p %p)\n", This, prcView, prcHScroll, prcVScroll, prcSizeBox);
 314     return E_NOTIMPL;
 315 }
 316
 317 static HRESULT WINAPI OleDocumentView_Show(IOleDocumentView *iface, BOOL fShow)
 318 {
 319     HTMLDocument *This = DOCVIEW_THIS(iface);
 320     HRESULT hres;
 321
 322     TRACE("(%p)->(%x)\n", This, fShow);
 323
 324     if(fShow) {
 325         if(!This->ui_active) {
 326             hres = activate_window(This);
 327             if(FAILED(hres))
 328                 return hres;
 329         }
 330         ShowWindow(This->hwnd, SW_SHOW);
 331     }else {
 332         ShowWindow(This->hwnd, SW_HIDE);
 333     }
 334
 335     return S_OK;
 336 }
 337
 338 static HRESULT WINAPI OleDocumentView_UIActivate(IOleDocumentView *iface, BOOL fUIActivate)
 339 {
 340     HTMLDocument *This = DOCVIEW_THIS(iface);
 341     HRESULT hres;
 342
 343     TRACE("(%p)->(%x)\n", This, fUIActivate);
 344
 345     if(!This->ipsite) {
 346         FIXME("This->ipsite = NULL\n");
 347         return E_FAIL;
 348     }
 349
 350     if(fUIActivate) {
 351         if(This->ui_active)
 352             return S_OK;
 353
 354         if(!This->window_active) {
 355             hres = activate_window(This);
 356             if(FAILED(hres))
 357                 return hres;
 358         }
 359
 360         hres = IOleInPlaceSite_OnUIActivate(This->ipsite);
 361         if(SUCCEEDED(hres)) {
 362             IOleInPlaceFrame_SetActiveObject(This->frame, ACTOBJ(This), wszHTML_Document);
 363         }else {
 364             FIXME("OnUIActivate failed: %08lx\n", hres);
 365             IOleInPlaceFrame_Release(This->frame);
 366             This->frame = NULL;
 367             This->ui_active = FALSE;
 368             return hres;
 369         }
 370
 371         hres = IDocHostUIHandler_ShowUI(This->hostui, 0, ACTOBJ(This), CMDTARGET(This),
 372                 This->frame, NULL);
 373         if(FAILED(hres))
 374             IDocHostUIHandler_HideUI(This->hostui);
 375
 376         This->ui_active = TRUE;
 377     }else {
 378         This->window_active = FALSE;
 379         if(This->ui_active) {
 380             This->ui_active = FALSE;
 381             if(This->frame)
 382                 IOleInPlaceFrame_SetActiveObject(This->frame, NULL, NULL);
 383             if(This->hostui)
 384                 IDocHostUIHandler_HideUI(This->hostui);
 385             if(This->ipsite)
 386                 IOleInPlaceSite_OnUIDeactivate(This->ipsite, FALSE);
 387         }
 388     }
 389     return S_OK;
 390 }
 391
 392 static HRESULT WINAPI OleDocumentView_Open(IOleDocumentView *iface)
 393 {
 394     HTMLDocument *This = DOCVIEW_THIS(iface);
 395     FIXME("(%p)\n", This);
 396     return E_NOTIMPL;
 397 }
 398
 399 static HRESULT WINAPI OleDocumentView_CloseView(IOleDocumentView *iface, DWORD dwReserved)
 400 {
 401     HTMLDocument *This = DOCVIEW_THIS(iface);
 402     TRACE("(%p)->(%lx)\n", This, dwReserved);
 403
 404     if(dwReserved)
 405         WARN("dwReserved = %ld\n", dwReserved);
 406
 407     /* NOTE:
 408      * Windows implementation calls QueryInterface(IID_IOleCommandTarget),
 409      * QueryInterface(IID_IOleControlSite) and KillTimer
 410      */
 411
 412     IOleDocumentView_Show(iface, FALSE);
 413
 414     return S_OK;
 415 }
 416
 417 static HRESULT WINAPI OleDocumentView_SaveViewState(IOleDocumentView *iface, LPSTREAM pstm)
 418 {
 419     HTMLDocument *This = DOCVIEW_THIS(iface);
 420     FIXME("(%p)->(%p)\n", This, pstm);
 421     return E_NOTIMPL;
 422 }
 423
 424 static HRESULT WINAPI OleDocumentView_ApplyViewState(IOleDocumentView *iface, LPSTREAM pstm)
 425 {
 426     HTMLDocument *This = DOCVIEW_THIS(iface);
 427     FIXME("(%p)->(%p)\n", This, pstm);
 428     return E_NOTIMPL;
 429 }
 430
 431 static HRESULT WINAPI OleDocumentView_Clone(IOleDocumentView *iface, IOleInPlaceSite *pIPSiteNew,
 432                                         IOleDocumentView **ppViewNew)
 433 {
 434     HTMLDocument *This = DOCVIEW_THIS(iface);
 435     FIXME("(%p)->(%p %p)\n", This, pIPSiteNew, ppViewNew);
 436     return E_NOTIMPL;
 437 }
 438
 439 #undef DOCVIEW_THIS
 440
 441 static const IOleDocumentViewVtbl OleDocumentViewVtbl = {
 442     OleDocumentView_QueryInterface,
 443     OleDocumentView_AddRef,
 444     OleDocumentView_Release,
 445     OleDocumentView_SetInPlaceSite,
 446     OleDocumentView_GetInPlaceSite,
 447     OleDocumentView_GetDocument,
 448     OleDocumentView_SetRect,
 449     OleDocumentView_GetRect,
 450     OleDocumentView_SetRectComplex,
 451     OleDocumentView_Show,
 452     OleDocumentView_UIActivate,
 453     OleDocumentView_Open,
 454     OleDocumentView_CloseView,
 455     OleDocumentView_SaveViewState,
 456     OleDocumentView_ApplyViewState,
 457     OleDocumentView_Clone
 458 };
 459
 460 /**********************************************************
 461  * IViewObject implementation
 462  */
 463
 464 #define VIEWOBJ_THIS(iface) DEFINE_THIS(HTMLDocument, ViewObject2, iface)
 465
 466 static HRESULT WINAPI ViewObject_QueryInterface(IViewObject2 *iface, REFIID riid, void **ppvObject)
 467 {
 468     HTMLDocument *This = VIEWOBJ_THIS(iface);
 469     return IHTMLDocument2_QueryInterface(HTMLDOC(This), riid, ppvObject);
 470 }
 471
 472 static ULONG WINAPI ViewObject_AddRef(IViewObject2 *iface)
 473 {
 474     HTMLDocument *This = VIEWOBJ_THIS(iface);
 475     return IHTMLDocument2_AddRef(HTMLDOC(This));
 476 }
 477
 478 static ULONG WINAPI ViewObject_Release(IViewObject2 *iface)
 479 {
 480     HTMLDocument *This = VIEWOBJ_THIS(iface);
 481     return IHTMLDocument2_Release(HTMLDOC(This));
 482 }
 483
 484 static HRESULT WINAPI ViewObject_Draw(IViewObject2 *iface, DWORD dwDrawAspect, LONG lindex, void *pvAspect,
 485         DVTARGETDEVICE *ptd, HDC hdcTargetDev, HDC hdcDraw, LPCRECTL lprcBounds,
 486         LPCRECTL lprcWBounds, BOOL (CALLBACK *pfnContinue)(ULONG_PTR dwContinue), ULONG_PTR dwContinue)
 487 {
 488     HTMLDocument *This = VIEWOBJ_THIS(iface);
 489     FIXME("(%p)->(%ld %ld %p %p %p %p %p %p %p %ld)\n", This, dwDrawAspect, lindex, pvAspect,
 490             ptd, hdcTargetDev, hdcDraw, lprcBounds, lprcWBounds, pfnContinue, dwContinue);
 491     return E_NOTIMPL;
 492 }
 493
 494 static HRESULT WINAPI ViewObject_GetColorSet(IViewObject2 *iface, DWORD dwDrawAspect, LONG lindex, void *pvAspect,
 495         DVTARGETDEVICE *ptd, HDC hicTargetDev, LOGPALETTE **ppColorSet)
 496 {
 497     HTMLDocument *This = VIEWOBJ_THIS(iface);
 498     FIXME("(%p)->(%ld %ld %p %p %p %p)\n", This, dwDrawAspect, lindex, pvAspect, ptd, hicTargetDev, ppColorSet);
 499     return E_NOTIMPL;
 500 }
 501
 502 static HRESULT WINAPI ViewObject_Freeze(IViewObject2 *iface, DWORD dwDrawAspect, LONG lindex,
 503         void *pvAspect, DWORD *pdwFreeze)
 504 {
 505     HTMLDocument *This = VIEWOBJ_THIS(iface);
 506     FIXME("(%p)->(%ld %ld %p %p)\n", This, dwDrawAspect, lindex, pvAspect, pdwFreeze);
 507     return E_NOTIMPL;
 508 }
 509
 510 static HRESULT WINAPI ViewObject_Unfreeze(IViewObject2 *iface, DWORD dwFreeze)
 511 {
 512     HTMLDocument *This = VIEWOBJ_THIS(iface);
 513     FIXME("(%p)->(%ld)\n", This, dwFreeze);
 514     return E_NOTIMPL;
 515 }
 516
 517 static HRESULT WINAPI ViewObject_SetAdvise(IViewObject2 *iface, DWORD aspects, DWORD advf, IAdviseSink *pAdvSink)
 518 {
 519     HTMLDocument *This = VIEWOBJ_THIS(iface);
 520     FIXME("(%p)->(%ld %ld %p)\n", This, aspects, advf, pAdvSink);
 521     return E_NOTIMPL;
 522 }
 523
 524 static HRESULT WINAPI ViewObject_GetAdvise(IViewObject2 *iface, DWORD *pAspects, DWORD *pAdvf, IAdviseSink **ppAdvSink)
 525 {
 526     HTMLDocument *This = VIEWOBJ_THIS(iface);
 527     FIXME("(%p)->(%p %p %p)\n", This, pAspects, pAdvf, ppAdvSink);
 528     return E_NOTIMPL;
 529 }
 530
 531 static HRESULT WINAPI ViewObject_GetExtent(IViewObject2 *iface, DWORD dwDrawAspect, LONG lindex,
 532                                 DVTARGETDEVICE* ptd, LPSIZEL lpsizel)
 533 {
 534     HTMLDocument *This = VIEWOBJ_THIS(iface);
 535     FIXME("(%p)->(%ld %ld %p %p)\n", This, dwDrawAspect, lindex, ptd, lpsizel);
 536     return E_NOTIMPL;
 537 }
 538
 539 #undef VIEWOBJ_THIS
 540
 541 static const IViewObject2Vtbl ViewObjectVtbl = {
 542     ViewObject_QueryInterface,
 543     ViewObject_AddRef,
 544     ViewObject_Release,
 545     ViewObject_Draw,
 546     ViewObject_GetColorSet,
 547     ViewObject_Freeze,
 548     ViewObject_Unfreeze,
 549     ViewObject_SetAdvise,
 550     ViewObject_GetAdvise,
 551     ViewObject_GetExtent
 552 };
 553
 554 void HTMLDocument_View_Init(HTMLDocument *This)
 555 {
 556     This->lpOleDocumentViewVtbl = &OleDocumentViewVtbl;
 557     This->lpViewObject2Vtbl = &ViewObjectVtbl;
 558
 559     This->ipsite = NULL;
 560     This->frame = NULL;
 561     This->hwnd = NULL;
 562
 563     This->in_place_active = FALSE;
 564     This->ui_active = FALSE;
 565     This->window_active = FALSE;
 566 }