dlls/msi/dialog.c

   1 /*
   2  * Implementation of the Microsoft Installer (msi.dll)
   3  *
   4  * Copyright 2005 Mike McCormack for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "winnls.h"
  29 #include "wingdi.h"
  30 #include "msi.h"
  31 #include "msipriv.h"
  32 #include "msidefs.h"
  33 #include "ocidl.h"
  34 #include "olectl.h"
  35 #include "richedit.h"
  36
  37 #include "wine/debug.h"
  38 #include "wine/unicode.h"
  39
  40 #include "action.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  43
  44
  45 struct msi_control_tag;
  46 typedef struct msi_control_tag msi_control;
  47 typedef UINT (*msi_handler)( msi_dialog *, msi_control *, WPARAM );
  48
  49 struct msi_control_tag
  50 {
  51     struct msi_control_tag *next;
  52     HWND hwnd;
  53     msi_handler handler;
  54     LPWSTR property;
  55     LPWSTR value;
  56     IPicture *pic;
  57     HICON hIcon;
  58     LPWSTR tabnext;
  59     WCHAR name[1];
  60 };
  61
  62 typedef struct msi_font_tag
  63 {
  64     struct msi_font_tag *next;
  65     HFONT hfont;
  66     WCHAR name[1];
  67 } msi_font;
  68
  69 struct msi_dialog_tag
  70 {
  71     MSIPACKAGE *package;
  72     msi_dialog_event_handler event_handler;
  73     BOOL finished;
  74     INT scale;
  75     DWORD attributes;
  76     HWND hwnd;
  77     LPWSTR default_font;
  78     msi_font *font_list;
  79     msi_control *control_list;
  80     WCHAR name[1];
  81 };
  82
  83 typedef UINT (*msi_dialog_control_func)( msi_dialog *dialog, MSIRECORD *rec );
  84 struct control_handler
  85 {
  86     LPCWSTR control_type;
  87     msi_dialog_control_func func;
  88 };
  89
  90 typedef struct
  91 {
  92     msi_dialog* dialog;
  93     msi_control *parent;
  94     DWORD       attributes;
  95 } radio_button_group_descr;
  96
  97 const WCHAR szMsiDialogClass[] = {
  98     'M','s','i','D','i','a','l','o','g','C','l','o','s','e','C','l','a','s','s',0
  99 };
 100 const WCHAR szMsiHiddenWindow[] = {
 101     'M','s','i','H','i','d','d','e','n','W','i','n','d','o','w',0 };
 102 const static WCHAR szStatic[] = { 'S','t','a','t','i','c',0 };
 103 const static WCHAR szButton[] = { 'B','U','T','T','O','N', 0 };
 104 const static WCHAR szButtonData[] = { 'M','S','I','D','A','T','A',0 };
 105 static const WCHAR szText[] = { 'T','e','x','t',0 };
 106 static const WCHAR szPushButton[] = { 'P','u','s','h','B','u','t','t','o','n',0 };
 107 static const WCHAR szLine[] = { 'L','i','n','e',0 };
 108 static const WCHAR szBitmap[] = { 'B','i','t','m','a','p',0 };
 109 static const WCHAR szCheckBox[] = { 'C','h','e','c','k','B','o','x',0 };
 110 static const WCHAR szScrollableText[] = {
 111     'S','c','r','o','l','l','a','b','l','e','T','e','x','t',0 };
 112 static const WCHAR szComboBox[] = { 'C','o','m','b','o','B','o','x',0 };
 113 static const WCHAR szEdit[] = { 'E','d','i','t',0 };
 114 static const WCHAR szMaskedEdit[] = { 'M','a','s','k','e','d','E','d','i','t',0 };
 115 static const WCHAR szPathEdit[] = { 'P','a','t','h','E','d','i','t',0 };
 116 static const WCHAR szRadioButtonGroup[] = {
 117     'R','a','d','i','o','B','u','t','t','o','n','G','r','o','u','p',0 };
 118 static const WCHAR szIcon[] = { 'I','c','o','n',0 };
 119
 120 static UINT msi_dialog_checkbox_handler( msi_dialog *, msi_control *, WPARAM );
 121 static void msi_dialog_checkbox_sync_state( msi_dialog *, msi_control * );
 122 static UINT msi_dialog_button_handler( msi_dialog *, msi_control *, WPARAM );
 123 static UINT msi_dialog_edit_handler( msi_dialog *, msi_control *, WPARAM );
 124 static UINT msi_dialog_radiogroup_handler( msi_dialog *, msi_control *, WPARAM param );
 125 static UINT msi_dialog_evaluate_control_conditions( msi_dialog *dialog );
 126 static LRESULT WINAPI MSIRadioGroup_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
 127
 128
 129 /* dialog sequencing */
 130
 131 #define WM_MSI_DIALOG_CREATE  (WM_USER+0x100)
 132 #define WM_MSI_DIALOG_DESTROY (WM_USER+0x101)
 133
 134 static DWORD uiThreadId;
 135 static HWND hMsiHiddenWindow;
 136 static HMODULE hRichedit;
 137
 138 static INT msi_dialog_scale_unit( msi_dialog *dialog, INT val )
 139 {
 140     return (dialog->scale * val + 5) / 10;
 141 }
 142
 143 static msi_control *msi_dialog_find_control( msi_dialog *dialog, LPCWSTR name )
 144 {
 145     msi_control *control;
 146
 147     if( !name )
 148         return NULL;
 149     for( control = dialog->control_list; control; control = control->next )
 150         if( !strcmpW( control->name, name ) ) /* FIXME: case sensitive? */
 151             break;
 152     return control;
 153 }
 154
 155 static msi_control *msi_dialog_find_control_by_hwnd( msi_dialog *dialog, HWND hwnd )
 156 {
 157     msi_control *control;
 158
 159     for( control = dialog->control_list; control; control = control->next )
 160         if( hwnd == control->hwnd )
 161             break;
 162     return control;
 163 }
 164
 165 /*
 166  * msi_dialog_get_style
 167  *
 168  * Extract the {\style} string from the front of the text to display and
 169  *  update the pointer.
 170  */
 171 static LPWSTR msi_dialog_get_style( LPCWSTR *text )
 172 {
 173     LPWSTR ret = NULL;
 174     LPCWSTR p = *text, q;
 175     DWORD len;
 176
 177     if( *p++ != '{' )
 178         return ret;
 179     q = strchrW( p, '}' );
 180     if( !q )
 181         return ret;
 182     *text = ++q;
 183     if( *p++ != '\\' )
 184         return ret;
 185     len = q - p;
 186
 187     ret = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
 188     if( !ret )
 189         return ret;
 190     memcpy( ret, p, len*sizeof(WCHAR) );
 191     ret[len-1] = 0;
 192     return ret;
 193 }
 194
 195 static UINT msi_dialog_add_font( MSIRECORD *rec, LPVOID param )
 196 {
 197     msi_dialog *dialog = param;
 198     msi_font *font;
 199     LPCWSTR face, name;
 200     LOGFONTW lf;
 201     INT style;
 202     HDC hdc;
 203
 204     /* create a font and add it to the list */
 205     name = MSI_RecordGetString( rec, 1 );
 206     font = HeapAlloc( GetProcessHeap(), 0,
 207                       sizeof *font + strlenW( name )*sizeof (WCHAR) );
 208     strcpyW( font->name, name );
 209     font->next = dialog->font_list;
 210     dialog->font_list = font;
 211
 212     memset( &lf, 0, sizeof lf );
 213     face = MSI_RecordGetString( rec, 2 );
 214     lf.lfHeight = MSI_RecordGetInteger( rec, 3 );
 215     style = MSI_RecordGetInteger( rec, 5 );
 216     if( style & msidbTextStyleStyleBitsBold )
 217         lf.lfWeight = FW_BOLD;
 218     if( style & msidbTextStyleStyleBitsItalic )
 219         lf.lfItalic = TRUE;
 220     if( style & msidbTextStyleStyleBitsUnderline )
 221         lf.lfUnderline = TRUE;
 222     if( style & msidbTextStyleStyleBitsStrike )
 223         lf.lfStrikeOut = TRUE;
 224     lstrcpynW( lf.lfFaceName, face, LF_FACESIZE );
 225
 226     /* adjust the height */
 227     hdc = GetDC( dialog->hwnd );
 228     if (hdc)
 229     {
 230         lf.lfHeight = -MulDiv(lf.lfHeight, GetDeviceCaps(hdc, LOGPIXELSY), 72);
 231         ReleaseDC( dialog->hwnd, hdc );
 232     }
 233
 234     font->hfont = CreateFontIndirectW( &lf );
 235
 236     TRACE("Adding font style %s\n", debugstr_w(font->name) );
 237
 238     return ERROR_SUCCESS;
 239 }
 240
 241 static msi_font *msi_dialog_find_font( msi_dialog *dialog, LPCWSTR name )
 242 {
 243     msi_font *font;
 244
 245     for( font = dialog->font_list; font; font = font->next )
 246         if( !strcmpW( font->name, name ) )  /* FIXME: case sensitive? */
 247             break;
 248
 249     return font;
 250 }
 251
 252 static UINT msi_dialog_set_font( msi_dialog *dialog, HWND hwnd, LPCWSTR name )
 253 {
 254     msi_font *font;
 255
 256     font = msi_dialog_find_font( dialog, name );
 257     if( font )
 258         SendMessageW( hwnd, WM_SETFONT, (WPARAM) font->hfont, TRUE );
 259     else
 260         ERR("No font entry for %s\n", debugstr_w(name));
 261     return ERROR_SUCCESS;
 262 }
 263
 264 static UINT msi_dialog_build_font_list( msi_dialog *dialog )
 265 {
 266     static const WCHAR query[] = {
 267       'S','E','L','E','C','T',' ','*',' ',
 268       'F','R','O','M',' ','`','T','e','x','t','S','t','y','l','e','`',' ',0
 269     };
 270     UINT r;
 271     MSIQUERY *view = NULL;
 272
 273     TRACE("dialog %p\n", dialog );
 274
 275     r = MSI_OpenQuery( dialog->package->db, &view, query );
 276     if( r != ERROR_SUCCESS )
 277         return r;
 278
 279     r = MSI_IterateRecords( view, NULL, msi_dialog_add_font, dialog );
 280     msiobj_release( &view->hdr );
 281
 282     return r;
 283 }
 284
 285 static msi_control *msi_dialog_create_window( msi_dialog *dialog,
 286                 MSIRECORD *rec, LPCWSTR szCls, LPCWSTR name, LPCWSTR text,
 287                 DWORD style, HWND parent )
 288 {
 289     DWORD x, y, width, height;
 290     LPWSTR font = NULL, title = NULL;
 291     msi_control *control;
 292
 293     style |= WS_CHILD;
 294
 295     control = HeapAlloc( GetProcessHeap(), 0,
 296                          sizeof *control + strlenW(name)*sizeof(WCHAR) );
 297     strcpyW( control->name, name );
 298     control->next = dialog->control_list;
 299     dialog->control_list = control;
 300     control->handler = NULL;
 301     control->property = NULL;
 302     control->value = NULL;
 303     control->pic = NULL;
 304     control->hIcon = NULL;
 305     control->tabnext = strdupW( MSI_RecordGetString( rec, 11) );
 306
 307     x = MSI_RecordGetInteger( rec, 4 );
 308     y = MSI_RecordGetInteger( rec, 5 );
 309     width = MSI_RecordGetInteger( rec, 6 );
 310     height = MSI_RecordGetInteger( rec, 7 );
 311
 312     x = msi_dialog_scale_unit( dialog, x );
 313     y = msi_dialog_scale_unit( dialog, y );
 314     width = msi_dialog_scale_unit( dialog, width );
 315     height = msi_dialog_scale_unit( dialog, height );
 316
 317     if( text )
 318     {
 319         font = msi_dialog_get_style( &text );
 320         deformat_string( dialog->package, text, &title );
 321     }
 322
 323     control->hwnd = CreateWindowW( szCls, title, style,
 324                           x, y, width, height, parent, NULL, NULL, NULL );
 325
 326     TRACE("Dialog %s control %s hwnd %p\n",
 327            debugstr_w(dialog->name), debugstr_w(text), control->hwnd );
 328
 329     msi_dialog_set_font( dialog, control->hwnd,
 330                          font ? font : dialog->default_font );
 331
 332     HeapFree( GetProcessHeap(), 0, font );
 333     HeapFree( GetProcessHeap(), 0, title );
 334
 335     return control;
 336 }
 337
 338 /* called from the Control Event subscription code */
 339 void msi_dialog_handle_event( msi_dialog* dialog, LPCWSTR control,
 340                               LPCWSTR attribute, MSIRECORD *rec )
 341 {
 342     msi_control* ctrl;
 343     LPCWSTR text;
 344
 345     ctrl = msi_dialog_find_control( dialog, control );
 346     if (!ctrl)
 347         return;
 348     if( lstrcmpW(attribute, szText) )
 349         return;
 350     text = MSI_RecordGetString( rec , 1 );
 351     SetWindowTextW( ctrl->hwnd, text );
 352     msi_dialog_check_messages( NULL );
 353 }
 354
 355 static void msi_dialog_map_events(msi_dialog* dialog, LPCWSTR control)
 356 {
 357     static WCHAR Query[] = {
 358         'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
 359          '`','E','v','e','n','t','M','a','p','p','i','n','g','`',' ',
 360         'W','H','E','R','E',' ',
 361          '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',' ',
 362         'A','N','D',' ',
 363          '`','C','o','n','t','r','o','l','_','`',' ','=',' ','\'','%','s','\'',0
 364     };
 365     MSIRECORD *row;
 366     LPCWSTR event, attribute;
 367
 368     row = MSI_QueryGetRecord( dialog->package->db, Query, dialog->name, control );
 369     if (!row)
 370         return;
 371
 372     event = MSI_RecordGetString( row, 3 );
 373     attribute = MSI_RecordGetString( row, 4 );
 374     ControlEvent_SubscribeToEvent( dialog->package, event, control, attribute );
 375     msiobj_release( &row->hdr );
 376 }
 377
 378 /* everything except radio buttons */
 379 static msi_control *msi_dialog_add_control( msi_dialog *dialog,
 380                 MSIRECORD *rec, LPCWSTR szCls, DWORD style )
 381 {
 382     DWORD attributes;
 383     LPCWSTR text, name;
 384
 385     name = MSI_RecordGetString( rec, 2 );
 386     attributes = MSI_RecordGetInteger( rec, 8 );
 387     text = MSI_RecordGetString( rec, 10 );
 388     if( attributes & msidbControlAttributesVisible )
 389         style |= WS_VISIBLE;
 390     if( ~attributes & msidbControlAttributesEnabled )
 391         style |= WS_DISABLED;
 392
 393     msi_dialog_map_events(dialog, name);
 394
 395     return msi_dialog_create_window( dialog, rec, szCls, name, text,
 396                                      style, dialog->hwnd );
 397 }
 398
 399 struct msi_text_info
 400 {
 401     WNDPROC oldproc;
 402     DWORD attributes;
 403 };
 404
 405 /*
 406  * we don't erase our own background,
 407  * so we have to make sure that the parent window redraws first
 408  */
 409 static void msi_text_on_settext( HWND hWnd )
 410 {
 411     HWND hParent;
 412     RECT rc;
 413
 414     hParent = GetParent( hWnd );
 415     GetWindowRect( hWnd, &rc );
 416     MapWindowPoints( NULL, hParent, (LPPOINT) &rc, 2 );
 417     InvalidateRect( hParent, &rc, TRUE );
 418 }
 419
 420 static LRESULT WINAPI
 421 MSIText_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 422 {
 423     struct msi_text_info *info;
 424     LRESULT r = 0;
 425
 426     TRACE("%p %04x %08x %08lx\n", hWnd, msg, wParam, lParam);
 427
 428     info = GetPropW(hWnd, szButtonData);
 429
 430     if( msg == WM_CTLCOLORSTATIC &&
 431        ( info->attributes & msidbControlAttributesTransparent ) )
 432     {
 433         SetBkMode( (HDC)wParam, TRANSPARENT );
 434         return (LRESULT) GetStockObject(NULL_BRUSH);
 435     }
 436
 437     r = CallWindowProcW(info->oldproc, hWnd, msg, wParam, lParam);
 438
 439     switch( msg )
 440     {
 441     case WM_SETTEXT:
 442         msi_text_on_settext( hWnd );
 443         break;
 444     case WM_NCDESTROY:
 445         HeapFree( GetProcessHeap(), 0, info );
 446         RemovePropW( hWnd, szButtonData );
 447         break;
 448     }
 449
 450     return r;
 451 }
 452
 453 static UINT msi_dialog_text_control( msi_dialog *dialog, MSIRECORD *rec )
 454 {
 455     msi_control *control;
 456     struct msi_text_info *info;
 457
 458     TRACE("%p %p\n", dialog, rec);
 459
 460     control = msi_dialog_add_control( dialog, rec, szStatic, SS_LEFT | WS_GROUP );
 461     if( !control )
 462         return ERROR_FUNCTION_FAILED;
 463
 464     info = HeapAlloc( GetProcessHeap(), 0, sizeof *info );
 465     if( !info )
 466         return ERROR_SUCCESS;
 467
 468     info->attributes = MSI_RecordGetInteger( rec, 8 );
 469     if( info->attributes & msidbControlAttributesTransparent )
 470         SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_TRANSPARENT );
 471
 472     info->oldproc = (WNDPROC) SetWindowLongPtrW( control->hwnd, GWLP_WNDPROC,
 473                                           (LONG_PTR)MSIText_WndProc );
 474     SetPropW( control->hwnd, szButtonData, info );
 475
 476     return ERROR_SUCCESS;
 477 }
 478
 479 static UINT msi_dialog_button_control( msi_dialog *dialog, MSIRECORD *rec )
 480 {
 481     msi_control *control;
 482
 483     TRACE("%p %p\n", dialog, rec);
 484
 485     control = msi_dialog_add_control( dialog, rec, szButton, WS_TABSTOP );
 486     control->handler = msi_dialog_button_handler;
 487
 488     return ERROR_SUCCESS;
 489 }
 490
 491 static LPWSTR msi_get_checkbox_value( msi_dialog *dialog, LPCWSTR prop )
 492 {
 493     const static WCHAR query[] = {
 494         'S','E','L','E','C','T',' ','*',' ',
 495         'F','R','O','M',' ','`','C','h','e','c','k','B','o','x',' ','`',
 496         'W','H','E','R','E',' ',
 497         '`','P','r','o','p','e','r','t','y','`',' ','=',' ',
 498         '\'','%','s','\'',0
 499     };
 500     MSIRECORD *rec = NULL;
 501     LPCWSTR val = NULL;
 502     LPWSTR ret = NULL;
 503
 504     /* find if there is a value associated with the checkbox */
 505     rec = MSI_QueryGetRecord( dialog->package->db, query, prop );
 506     if (!rec)
 507         return ret;
 508
 509     val = MSI_RecordGetString( rec, 2 );
 510     if (val)
 511     {
 512         deformat_string( dialog->package, val, &ret );
 513         if( ret && !ret[0] )
 514         {
 515             HeapFree( GetProcessHeap(), 0, ret );
 516             ret = NULL;
 517         }
 518     }
 519     msiobj_release( &rec->hdr );
 520     if (ret)
 521         return ret;
 522
 523     ret = load_dynamic_property(dialog->package, prop, NULL);
 524     if( ret && !ret[0] )
 525     {
 526         HeapFree( GetProcessHeap(), 0, ret );
 527         ret = NULL;
 528     }
 529
 530     return ret;
 531 }
 532
 533 static UINT msi_dialog_checkbox_control( msi_dialog *dialog, MSIRECORD *rec )
 534 {
 535     msi_control *control;
 536     LPCWSTR prop;
 537
 538     TRACE("%p %p\n", dialog, rec);
 539
 540     control = msi_dialog_add_control( dialog, rec, szButton,
 541                                 BS_CHECKBOX | BS_MULTILINE | WS_TABSTOP );
 542     control->handler = msi_dialog_checkbox_handler;
 543     prop = MSI_RecordGetString( rec, 9 );
 544     if( prop )
 545     {
 546         control->property = strdupW( prop );
 547         control->value = msi_get_checkbox_value( dialog, prop );
 548         TRACE("control %s value %s\n", debugstr_w(control->property),
 549               debugstr_w(control->value));
 550     }
 551     msi_dialog_checkbox_sync_state( dialog, control );
 552
 553     return ERROR_SUCCESS;
 554 }
 555
 556 static UINT msi_dialog_line_control( msi_dialog *dialog, MSIRECORD *rec )
 557 {
 558     TRACE("%p %p\n", dialog, rec);
 559
 560     msi_dialog_add_control( dialog, rec, szStatic, SS_ETCHEDHORZ | SS_SUNKEN );
 561     return ERROR_SUCCESS;
 562 }
 563
 564 struct msi_streamin_info
 565 {
 566     LPSTR string;
 567     DWORD offset;
 568     DWORD length;
 569 };
 570
 571 static DWORD CALLBACK
 572 msi_richedit_stream_in( DWORD_PTR arg, LPBYTE buffer, LONG count, LONG *pcb )
 573 {
 574     struct msi_streamin_info *info = (struct msi_streamin_info*) arg;
 575
 576     if( (count + info->offset) > info->length )
 577         count = info->length - info->offset;
 578     memcpy( buffer, &info->string[ info->offset ], count );
 579     *pcb = count;
 580     info->offset += count;
 581
 582     TRACE("%ld/%ld\n", info->offset, info->length);
 583
 584     return 0;
 585 }
 586
 587 static UINT msi_dialog_scrolltext_control( msi_dialog *dialog, MSIRECORD *rec )
 588 {
 589     const static WCHAR szRichEdit20W[] = {
 590         'R','i','c','h','E','d','i','t','2','0','W',0
 591     };
 592     struct msi_streamin_info info;
 593     msi_control *control;
 594     LPCWSTR text;
 595     EDITSTREAM es;
 596     DWORD style;
 597
 598     style = WS_BORDER | ES_MULTILINE | WS_VSCROLL |
 599             ES_READONLY | ES_AUTOVSCROLL | WS_TABSTOP;
 600     control = msi_dialog_add_control( dialog, rec, szRichEdit20W, style );
 601
 602     text = MSI_RecordGetString( rec, 10 );
 603     info.string = strdupWtoA( text );
 604     info.offset = 0;
 605     info.length = lstrlenA( info.string ) + 1;
 606
 607     es.dwCookie = (DWORD_PTR) &info;
 608     es.dwError = 0;
 609     es.pfnCallback = msi_richedit_stream_in;
 610
 611     SendMessageW( control->hwnd, EM_STREAMIN, SF_RTF, (LPARAM) &es );
 612
 613     HeapFree( GetProcessHeap(), 0, info.string );
 614
 615     return ERROR_SUCCESS;
 616 }
 617
 618 static MSIRECORD *msi_get_binary_record( MSIDATABASE *db, LPCWSTR name )
 619 {
 620     const static WCHAR query[] = {
 621         's','e','l','e','c','t',' ','*',' ',
 622         'f','r','o','m',' ','B','i','n','a','r','y',' ',
 623         'w','h','e','r','e',' ',
 624             '`','N','a','m','e','`',' ','=',' ','\'','%','s','\'',0
 625     };
 626
 627     return MSI_QueryGetRecord( db, query, name );
 628 }
 629
 630 static UINT msi_load_bitmap( MSIDATABASE *db, LPCWSTR name, IPicture **pic )
 631 {
 632     MSIRECORD *rec = NULL;
 633     IStream *stm = NULL;
 634     UINT r;
 635
 636     rec = msi_get_binary_record( db, name );
 637     if( !rec )
 638         return ERROR_FUNCTION_FAILED;
 639
 640     r = MSI_RecordGetIStream( rec, 2, &stm );
 641     msiobj_release( &rec->hdr );
 642     if( r != ERROR_SUCCESS )
 643         return r;
 644
 645     r = OleLoadPicture( stm, 0, TRUE, &IID_IPicture, (LPVOID*) pic );
 646     IStream_Release( stm );
 647     if( FAILED( r ) )
 648         return ERROR_FUNCTION_FAILED;
 649
 650     return ERROR_SUCCESS;
 651 }
 652
 653 static UINT msi_dialog_bitmap_control( msi_dialog *dialog, MSIRECORD *rec )
 654 {
 655     IPicture *pic = NULL;
 656     msi_control *control;
 657     OLE_HANDLE hBitmap = 0;
 658     LPCWSTR text;
 659     UINT r;
 660
 661     control = msi_dialog_add_control( dialog, rec, szStatic,
 662                             SS_BITMAP | SS_LEFT | SS_CENTERIMAGE );
 663     text = MSI_RecordGetString( rec, 10 );
 664     r = msi_load_bitmap( dialog->package->db, text, &pic );
 665     if( r == ERROR_SUCCESS )
 666     {
 667         r = IPicture_get_Handle( pic, &hBitmap );
 668         if( SUCCEEDED( r ) )
 669             SendMessageW( control->hwnd, STM_SETIMAGE, IMAGE_BITMAP, hBitmap );
 670         control->pic = pic;
 671     }
 672
 673     return ERROR_SUCCESS;
 674 }
 675
 676 static LPWSTR msi_create_tmp_path(void)
 677 {
 678     WCHAR tmp[MAX_PATH];
 679     LPWSTR path = NULL;
 680     static const WCHAR prefix[] = { 'm','s','i',0 };
 681     DWORD len, r;
 682
 683     r = GetTempPathW( MAX_PATH, tmp );
 684     if( !r )
 685         return path;
 686     len = lstrlenW( tmp ) + 20;
 687     path = HeapAlloc( GetProcessHeap(), 0, len * sizeof (WCHAR) );
 688     if( path )
 689     {
 690         r = GetTempFileNameW( tmp, prefix, 0, path );
 691         if (!r)
 692         {
 693             HeapFree( GetProcessHeap(), 0, path );
 694             path = NULL;
 695         }
 696     }
 697     return path;
 698 }
 699
 700 static UINT
 701 msi_load_icon( MSIDATABASE *db, LPCWSTR name, DWORD attributes, HICON *picon )
 702 {
 703     UINT r = ERROR_FUNCTION_FAILED;
 704     LPWSTR tmp;
 705     MSIRECORD *rec;
 706     HICON hicon = 0;
 707
 708     TRACE("loading %s\n", debugstr_w( name ) );
 709
 710     tmp = msi_create_tmp_path();
 711     if( !tmp )
 712         return r;
 713
 714     rec = msi_get_binary_record( db, name );
 715     if( rec )
 716     {
 717         r = MSI_RecordStreamToFile( rec, 2, tmp );
 718         if( r == ERROR_SUCCESS )
 719         {
 720             DWORD cx = 0, cy = 0, flags = LR_LOADFROMFILE | LR_DEFAULTSIZE;
 721
 722             if( attributes & msidbControlAttributesFixedSize )
 723             {
 724                 flags &= ~LR_DEFAULTSIZE;
 725                 if( attributes & msidbControlAttributesIconSize16 )
 726                 {
 727                     cx += 16;
 728                     cy += 16;
 729                 }
 730                 if( attributes & msidbControlAttributesIconSize32 )
 731                 {
 732                     cx += 32;
 733                     cy += 32;
 734                 }
 735                 /* msidbControlAttributesIconSize48 handled by above logic */
 736             }
 737
 738             hicon = LoadImageW( 0, tmp, IMAGE_ICON, cx, cy, flags );
 739             if( hicon )
 740                 *picon = hicon;
 741             else
 742                 ERR("failed to load icon from %s\n", debugstr_w( tmp ));
 743             DeleteFileW( tmp );
 744         }
 745         msiobj_release( &rec->hdr );
 746     }
 747
 748     HeapFree( GetProcessHeap(), 0, tmp );
 749
 750     return r;
 751 }
 752
 753 static UINT msi_dialog_icon_control( msi_dialog *dialog, MSIRECORD *rec )
 754 {
 755     msi_control *control;
 756     DWORD attributes;
 757     HICON hIcon = 0;
 758     LPCWSTR text;
 759     UINT r;
 760
 761     TRACE("\n");
 762
 763     control = msi_dialog_add_control( dialog, rec, szStatic,
 764                             SS_ICON | SS_CENTERIMAGE | WS_GROUP );
 765     text = MSI_RecordGetString( rec, 10 );
 766     attributes = MSI_RecordGetInteger( rec, 8 );
 767     r = msi_load_icon( dialog->package->db, text, attributes, &hIcon );
 768     if( r == ERROR_SUCCESS )
 769     {
 770         r = SendMessageW( control->hwnd, STM_SETICON, (WPARAM) hIcon, 0 );
 771         control->hIcon = hIcon;
 772     }
 773     else
 774         ERR("Failed to load bitmap %s\n", debugstr_w(text));
 775     return ERROR_SUCCESS;
 776 }
 777
 778 static UINT msi_dialog_combo_control( msi_dialog *dialog, MSIRECORD *rec )
 779 {
 780     static const WCHAR szCombo[] = { 'C','O','M','B','O','B','O','X',0 };
 781
 782     msi_dialog_add_control( dialog, rec, szCombo,
 783                             SS_BITMAP | SS_LEFT | SS_CENTERIMAGE );
 784     return ERROR_SUCCESS;
 785 }
 786
 787 static UINT msi_dialog_edit_control( msi_dialog *dialog, MSIRECORD *rec )
 788 {
 789     msi_control *control;
 790     LPCWSTR prop;
 791     LPWSTR val;
 792
 793     control = msi_dialog_add_control( dialog, rec, szEdit,
 794                                       WS_BORDER | WS_TABSTOP );
 795     control->handler = msi_dialog_edit_handler;
 796     prop = MSI_RecordGetString( rec, 9 );
 797     if( prop )
 798         control->property = strdupW( prop );
 799     val = load_dynamic_property( dialog->package, control->property, NULL );
 800     SetWindowTextW( control->hwnd, val );
 801     HeapFree( GetProcessHeap(), 0, val );
 802     return ERROR_SUCCESS;
 803 }
 804
 805 /******************** Masked Edit ********************************************/
 806
 807 #define MASK_MAX_GROUPS 10
 808
 809 struct msi_mask_group
 810 {
 811     UINT len;
 812     UINT ofs;
 813     WCHAR type;
 814     HWND hwnd;
 815 };
 816
 817 struct msi_maskedit_info
 818 {
 819     msi_dialog *dialog;
 820     WNDPROC oldproc;
 821     HWND hwnd;
 822     LPWSTR prop;
 823     UINT num_chars;
 824     UINT num_groups;
 825     struct msi_mask_group group[MASK_MAX_GROUPS];
 826 };
 827
 828 static void msi_mask_control_change( struct msi_maskedit_info *info )
 829 {
 830     LPWSTR val;
 831     UINT i, n, r;
 832
 833     val = HeapAlloc( GetProcessHeap(), 0, (info->num_chars+1)*sizeof(WCHAR) );
 834     for( i=0, n=0; i<info->num_groups; i++ )
 835     {
 836         if( (info->group[i].len + n) > info->num_chars )
 837         {
 838             ERR("can't fit control %d text into template\n",i);
 839             break;
 840         }
 841         r = GetWindowTextW( info->group[i].hwnd, &val[n], info->group[i].len+1 );
 842         if( r != info->group[i].len )
 843             break;
 844         n += r;
 845     }
 846
 847     TRACE("%d/%d controls were good\n", i, info->num_groups);
 848
 849     if( i == info->num_groups )
 850     {
 851         TRACE("Set property %s to %s\n",
 852               debugstr_w(info->prop), debugstr_w(val) );
 853         CharUpperBuffW( val, info->num_chars );
 854         MSI_SetPropertyW( info->dialog->package, info->prop, val );
 855         msi_dialog_evaluate_control_conditions( info->dialog );
 856     }
 857     HeapFree( GetProcessHeap(), 0, val );
 858 }
 859
 860 /* now move to the next control if necessary */
 861 static VOID msi_mask_next_control( struct msi_maskedit_info *info, HWND hWnd )
 862 {
 863     HWND hWndNext;
 864     UINT len, i;
 865
 866     for( i=0; i<info->num_groups; i++ )
 867         if( info->group[i].hwnd == hWnd )
 868             break;
 869
 870     /* don't move from the last control */
 871     if( i >= (info->num_groups-1) )
 872         return;
 873
 874     len = SendMessageW( hWnd, WM_GETTEXTLENGTH, 0, 0 );
 875     if( len < info->group[i].len )
 876         return;
 877
 878     hWndNext = GetNextDlgTabItem( GetParent( hWnd ), hWnd, FALSE );
 879     SetFocus( hWndNext );
 880 }
 881
 882 static LRESULT WINAPI
 883 MSIMaskedEdit_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 884 {
 885     struct msi_maskedit_info *info;
 886     HRESULT r;
 887
 888     TRACE("%p %04x %08x %08lx\n", hWnd, msg, wParam, lParam);
 889
 890     info = GetPropW(hWnd, szButtonData);
 891
 892     r = CallWindowProcW(info->oldproc, hWnd, msg, wParam, lParam);
 893
 894     switch( msg )
 895     {
 896     case WM_COMMAND:
 897         if (HIWORD(wParam) == EN_CHANGE)
 898         {
 899             msi_mask_control_change( info );
 900             msi_mask_next_control( info, (HWND) lParam );
 901         }
 902         break;
 903     case WM_NCDESTROY:
 904         HeapFree( GetProcessHeap(), 0, info->prop );
 905         HeapFree( GetProcessHeap(), 0, info );
 906         RemovePropW( hWnd, szButtonData );
 907         break;
 908     }
 909
 910     return r;
 911 }
 912
 913 /* fish the various bits of the property out and put them in the control */
 914 static void
 915 msi_maskedit_set_text( struct msi_maskedit_info *info, LPCWSTR text )
 916 {
 917     LPCWSTR p;
 918     UINT i;
 919
 920     p = text;
 921     for( i = 0; i < info->num_groups; i++ )
 922     {
 923         if( info->group[i].len < lstrlenW( p ) )
 924         {
 925             LPWSTR chunk = strdupW( p );
 926             chunk[ info->group[i].len ] = 0;
 927             SetWindowTextW( info->group[i].hwnd, chunk );
 928             HeapFree( GetProcessHeap(), 0, chunk );
 929         }
 930         else
 931         {
 932             SetWindowTextW( info->group[i].hwnd, p );
 933             break;
 934         }
 935         p += info->group[i].len;
 936     }
 937 }
 938
 939 static struct msi_maskedit_info * msi_dialog_parse_groups( LPCWSTR mask )
 940 {
 941     struct msi_maskedit_info * info = NULL;
 942     int i = 0, n = 0, total = 0;
 943     LPCWSTR p;
 944
 945     TRACE("masked control, template %s\n", debugstr_w(mask));
 946
 947     if( !mask )
 948         return info;
 949
 950     p = strchrW(mask, '<');
 951     if( !p )
 952         return info;
 953
 954     info = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof *info );
 955     if( !info )
 956         return info;
 957
 958     p++;
 959     for( i=0; i<MASK_MAX_GROUPS; i++ )
 960     {
 961         /* stop at the end of the string */
 962         if( p[0] == 0 || p[0] == '>' )
 963             break;
 964
 965         /* count the number of the same identifier */
 966         for( n=0; p[n] == p[0]; n++ )
 967             ;
 968         info->group[i].ofs = total;
 969         info->group[i].type = p[0];
 970         if( p[n] == '=' )
 971         {
 972             n++;
 973             total++; /* an extra not part of the group */
 974         }
 975         info->group[i].len = n;
 976         total += n;
 977         p += n;
 978     }
 979
 980     TRACE("%d characters in %d groups\n", total, info->num_groups );
 981     if( i == MASK_MAX_GROUPS )
 982         ERR("too many groups in PIDTemplate %s\n", debugstr_w(mask));
 983
 984     info->num_chars = total;
 985     info->num_groups = i;
 986
 987     return info;
 988 }
 989
 990 static void
 991 msi_maskedit_create_children( struct msi_maskedit_info *info )
 992 {
 993     DWORD width, height, style, wx, ww;
 994     LPCWSTR text, font = NULL;
 995     RECT rect;
 996     HWND hwnd;
 997     UINT i;
 998
 999     style = WS_CHILD | WS_BORDER | WS_VISIBLE | WS_TABSTOP;
1000
1001     GetClientRect( info->hwnd, &rect );
1002
1003     width = rect.right - rect.left;
1004     height = rect.bottom - rect.top;
1005
1006     if( text )
1007         font = msi_dialog_get_style( &text );
1008
1009     for( i = 0; i < info->num_groups; i++ )
1010     {
1011         wx = (info->group[i].ofs * width) / info->num_chars;
1012         ww = (info->group[i].len * width) / info->num_chars;
1013
1014         hwnd = CreateWindowW( szEdit, NULL, style, wx, 0, ww, height,
1015                               info->hwnd, NULL, NULL, NULL );
1016         if( !hwnd )
1017         {
1018             ERR("failed to create mask edit sub window\n");
1019             break;
1020         }
1021
1022         SendMessageW( hwnd, EM_LIMITTEXT, info->group[i].len, 0 );
1023
1024         msi_dialog_set_font( info->dialog, hwnd,
1025                        font ? font : info->dialog->default_font );
1026         info->group[i].hwnd = hwnd;
1027     }
1028 }
1029
1030 /* office 2003 uses "73931<````=````=````=````=`````>@@@@@" */
1031 static UINT msi_dialog_maskedit_control( msi_dialog *dialog, MSIRECORD *rec )
1032 {
1033     const static WCHAR pidt[] = {'P','I','D','T','e','m','p','l','a','t','e',0};
1034     LPWSTR mask = NULL, title = NULL, val = NULL;
1035     struct msi_maskedit_info *info = NULL;
1036     UINT ret = ERROR_SUCCESS;
1037     msi_control *control;
1038     LPCWSTR prop;
1039
1040     mask = load_dynamic_property( dialog->package, pidt, NULL );
1041     if( !mask )
1042     {
1043         ERR("PIDTemplate is empty\n");
1044         goto end;
1045     }
1046
1047     info = msi_dialog_parse_groups( mask );
1048     if( !info )
1049     {
1050         ERR("template %s is invalid\n", debugstr_w(mask));
1051         goto end;
1052     }
1053
1054     info->dialog = dialog;
1055
1056     control = msi_dialog_add_control( dialog, rec, szStatic,
1057                    SS_OWNERDRAW | WS_GROUP | WS_VISIBLE );
1058     if( !control )
1059     {
1060         ERR("Failed to create maskedit container\n");
1061         ret = ERROR_FUNCTION_FAILED;
1062         goto end;
1063     }
1064     SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_CONTROLPARENT );
1065
1066     info->hwnd = control->hwnd;
1067
1068     /* subclass the static control */
1069     info->oldproc = (WNDPROC) SetWindowLongPtrW( info->hwnd, GWLP_WNDPROC,
1070                                           (LONG_PTR)MSIMaskedEdit_WndProc );
1071     SetPropW( control->hwnd, szButtonData, info );
1072
1073     prop = MSI_RecordGetString( rec, 9 );
1074     if( prop )
1075         info->prop = strdupW( prop );
1076
1077     msi_maskedit_create_children( info );
1078
1079     if( prop )
1080     {
1081         val = load_dynamic_property( dialog->package, prop, NULL );
1082         if( val )
1083         {
1084             msi_maskedit_set_text( info, val );
1085             HeapFree( GetProcessHeap(), 0, val );
1086         }
1087     }
1088
1089 end:
1090     if( ret != ERROR_SUCCESS )
1091         HeapFree( GetProcessHeap(), 0, info );
1092     HeapFree( GetProcessHeap(), 0, title );
1093     HeapFree( GetProcessHeap(), 0, mask );
1094     return ret;
1095 }
1096
1097 /******************** Path Edit ********************************************/
1098
1099 static UINT msi_dialog_pathedit_control( msi_dialog *dialog, MSIRECORD *rec )
1100 {
1101     FIXME("not implemented properly\n");
1102     return msi_dialog_edit_control( dialog, rec );
1103 }
1104
1105 /* radio buttons are a bit different from normal controls */
1106 static UINT msi_dialog_create_radiobutton( MSIRECORD *rec, LPVOID param )
1107 {
1108     radio_button_group_descr *group = (radio_button_group_descr *)param;
1109     msi_dialog *dialog = group->dialog;
1110     msi_control *control;
1111     LPCWSTR prop, text, name;
1112     DWORD style;
1113     DWORD attributes = group->attributes;
1114
1115     style = WS_CHILD | BS_AUTORADIOBUTTON | BS_MULTILINE | WS_TABSTOP;
1116     name = MSI_RecordGetString( rec, 3 );
1117     text = MSI_RecordGetString( rec, 8 );
1118     if( attributes & 1 )
1119         style |= WS_VISIBLE;
1120     if( ~attributes & 2 )
1121         style |= WS_DISABLED;
1122
1123     control = msi_dialog_create_window( dialog, rec, szButton, name, text,
1124                                         style, group->parent->hwnd );
1125     control->handler = msi_dialog_radiogroup_handler;
1126
1127     prop = MSI_RecordGetString( rec, 1 );
1128     if( prop )
1129         control->property = strdupW( prop );
1130
1131     return ERROR_SUCCESS;
1132 }
1133
1134 static UINT msi_dialog_radiogroup_control( msi_dialog *dialog, MSIRECORD *rec )
1135 {
1136     static const WCHAR query[] = {
1137         'S','E','L','E','C','T',' ','*',' ',
1138         'F','R','O','M',' ','R','a','d','i','o','B','u','t','t','o','n',' ',
1139         'W','H','E','R','E',' ',
1140            '`','P','r','o','p','e','r','t','y','`',' ','=',' ','\'','%','s','\'',0};
1141     UINT r;
1142     LPCWSTR prop;
1143     msi_control *control;
1144     MSIQUERY *view = NULL;
1145     radio_button_group_descr group;
1146     MSIPACKAGE *package = dialog->package;
1147     WNDPROC oldproc;
1148
1149     prop = MSI_RecordGetString( rec, 9 );
1150
1151     TRACE("%p %p %s\n", dialog, rec, debugstr_w( prop ));
1152
1153     /* Create parent group box to hold radio buttons */
1154     control = msi_dialog_add_control( dialog, rec, szButton, BS_OWNERDRAW|WS_GROUP );
1155     if( !control )
1156         return ERROR_FUNCTION_FAILED;
1157
1158     oldproc = (WNDPROC) SetWindowLongPtrW( control->hwnd, GWLP_WNDPROC,
1159                                            (LONG_PTR)MSIRadioGroup_WndProc );
1160     SetPropW(control->hwnd, szButtonData, oldproc);
1161     SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_CONTROLPARENT );
1162
1163     if( prop )
1164         control->property = strdupW( prop );
1165
1166     /* query the Radio Button table for all control in this group */
1167     r = MSI_OpenQuery( package->db, &view, query, prop );
1168     if( r != ERROR_SUCCESS )
1169     {
1170         ERR("query failed for dialog %s radio group %s\n",
1171             debugstr_w(dialog->name), debugstr_w(prop));
1172         return ERROR_INVALID_PARAMETER;
1173     }
1174
1175     group.dialog = dialog;
1176     group.parent = control;
1177     group.attributes = MSI_RecordGetInteger( rec, 8 );
1178
1179     r = MSI_IterateRecords( view, 0, msi_dialog_create_radiobutton, &group );
1180     msiobj_release( &view->hdr );
1181
1182     return r;
1183 }
1184
1185 struct control_handler msi_dialog_handler[] =
1186 {
1187     { szText, msi_dialog_text_control },
1188     { szPushButton, msi_dialog_button_control },
1189     { szLine, msi_dialog_line_control },
1190     { szBitmap, msi_dialog_bitmap_control },
1191     { szCheckBox, msi_dialog_checkbox_control },
1192     { szScrollableText, msi_dialog_scrolltext_control },
1193     { szComboBox, msi_dialog_combo_control },
1194     { szEdit, msi_dialog_edit_control },
1195     { szMaskedEdit, msi_dialog_maskedit_control },
1196     { szPathEdit, msi_dialog_pathedit_control },
1197     { szRadioButtonGroup, msi_dialog_radiogroup_control },
1198     { szIcon, msi_dialog_icon_control },
1199 };
1200
1201 #define NUM_CONTROL_TYPES (sizeof msi_dialog_handler/sizeof msi_dialog_handler[0])
1202
1203 static UINT msi_dialog_create_controls( MSIRECORD *rec, LPVOID param )
1204 {
1205     msi_dialog *dialog = param;
1206     LPCWSTR control_type;
1207     UINT i;
1208
1209     /* find and call the function that can create this type of control */
1210     control_type = MSI_RecordGetString( rec, 3 );
1211     for( i=0; i<NUM_CONTROL_TYPES; i++ )
1212         if (!strcmpiW( msi_dialog_handler[i].control_type, control_type ))
1213             break;
1214     if( i != NUM_CONTROL_TYPES )
1215         msi_dialog_handler[i].func( dialog, rec );
1216     else
1217         ERR("no handler for element type %s\n", debugstr_w(control_type));
1218
1219     return ERROR_SUCCESS;
1220 }
1221
1222 static UINT msi_dialog_fill_controls( msi_dialog *dialog )
1223 {
1224     static const WCHAR query[] = {
1225         'S','E','L','E','C','T',' ','*',' ',
1226         'F','R','O','M',' ','C','o','n','t','r','o','l',' ',
1227         'W','H','E','R','E',' ',
1228            '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0};
1229     UINT r;
1230     MSIQUERY *view = NULL;
1231     MSIPACKAGE *package = dialog->package;
1232
1233     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1234
1235     /* query the Control table for all the elements of the control */
1236     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
1237     if( r != ERROR_SUCCESS )
1238     {
1239         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1240         return ERROR_INVALID_PARAMETER;
1241     }
1242
1243     r = MSI_IterateRecords( view, 0, msi_dialog_create_controls, dialog );
1244     msiobj_release( &view->hdr );
1245
1246     return r;
1247 }
1248
1249 static UINT msi_dialog_set_control_condition( MSIRECORD *rec, LPVOID param )
1250 {
1251     static const WCHAR szHide[] = { 'H','i','d','e',0 };
1252     static const WCHAR szShow[] = { 'S','h','o','w',0 };
1253     static const WCHAR szDisable[] = { 'D','i','s','a','b','l','e',0 };
1254     static const WCHAR szEnable[] = { 'E','n','a','b','l','e',0 };
1255     msi_dialog *dialog = param;
1256     msi_control *control;
1257     LPCWSTR name, action, condition;
1258     UINT r;
1259
1260     name = MSI_RecordGetString( rec, 2 );
1261     action = MSI_RecordGetString( rec, 3 );
1262     condition = MSI_RecordGetString( rec, 4 );
1263     r = MSI_EvaluateConditionW( dialog->package, condition );
1264     control = msi_dialog_find_control( dialog, name );
1265     if( r && control )
1266     {
1267         TRACE("%s control %s\n", debugstr_w(action), debugstr_w(name));
1268
1269         /* FIXME: case sensitive? */
1270         if(!lstrcmpW(action, szHide))
1271             ShowWindow(control->hwnd, SW_HIDE);
1272         else if(!strcmpW(action, szShow))
1273             ShowWindow(control->hwnd, SW_SHOW);
1274         else if(!strcmpW(action, szDisable))
1275             EnableWindow(control->hwnd, FALSE);
1276         else if(!strcmpW(action, szEnable))
1277             EnableWindow(control->hwnd, TRUE);
1278         else
1279             FIXME("Unhandled action %s\n", debugstr_w(action));
1280     }
1281
1282     return ERROR_SUCCESS;
1283 }
1284
1285 static UINT msi_dialog_evaluate_control_conditions( msi_dialog *dialog )
1286 {
1287     static const WCHAR query[] = {
1288       'S','E','L','E','C','T',' ','*',' ',
1289       'F','R','O','M',' ',
1290         'C','o','n','t','r','o','l','C','o','n','d','i','t','i','o','n',' ',
1291       'W','H','E','R','E',' ',
1292         '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0
1293     };
1294     UINT r;
1295     MSIQUERY *view = NULL;
1296     MSIPACKAGE *package = dialog->package;
1297
1298     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1299
1300     /* query the Control table for all the elements of the control */
1301     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
1302     if( r != ERROR_SUCCESS )
1303     {
1304         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1305         return ERROR_INVALID_PARAMETER;
1306     }
1307
1308     r = MSI_IterateRecords( view, 0, msi_dialog_set_control_condition, dialog );
1309     msiobj_release( &view->hdr );
1310
1311     return r;
1312 }
1313
1314 /* figure out the height of 10 point MS Sans Serif */
1315 static INT msi_dialog_get_sans_serif_height( HWND hwnd )
1316 {
1317     static const WCHAR szSansSerif[] = {
1318         'M','S',' ','S','a','n','s',' ','S','e','r','i','f',0 };
1319     LOGFONTW lf;
1320     TEXTMETRICW tm;
1321     BOOL r;
1322     LONG height = 0;
1323     HFONT hFont, hOldFont;
1324     HDC hdc;
1325
1326     hdc = GetDC( hwnd );
1327     if (hdc)
1328     {
1329         memset( &lf, 0, sizeof lf );
1330         lf.lfHeight = MulDiv(10, GetDeviceCaps(hdc, LOGPIXELSY), 72);
1331         strcpyW( lf.lfFaceName, szSansSerif );
1332         hFont = CreateFontIndirectW(&lf);
1333         if (hFont)
1334         {
1335             hOldFont = SelectObject( hdc, hFont );
1336             r = GetTextMetricsW( hdc, &tm );
1337             if (r)
1338                 height = tm.tmHeight;
1339             SelectObject( hdc, hOldFont );
1340             DeleteObject( hFont );
1341         }
1342         ReleaseDC( hwnd, hdc );
1343     }
1344     return height;
1345 }
1346
1347 /* fetch the associated record from the Dialog table */
1348 static MSIRECORD *msi_get_dialog_record( msi_dialog *dialog )
1349 {
1350     static const WCHAR query[] = {
1351         'S','E','L','E','C','T',' ','*',' ',
1352         'F','R','O','M',' ','D','i','a','l','o','g',' ',
1353         'W','H','E','R','E',' ',
1354            '`','D','i','a','l','o','g','`',' ','=',' ','\'','%','s','\'',0};
1355     MSIPACKAGE *package = dialog->package;
1356     MSIRECORD *rec = NULL;
1357
1358     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1359
1360     rec = MSI_QueryGetRecord( package->db, query, dialog->name );
1361     if( !rec )
1362         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1363
1364     return rec;
1365 }
1366
1367 static void msi_dialog_adjust_dialog_size( msi_dialog *dialog, LPSIZE sz )
1368 {
1369     RECT rect;
1370     LONG style;
1371
1372     /* turn the client size into the window rectangle */
1373     rect.left = 0;
1374     rect.top = 0;
1375     rect.right = msi_dialog_scale_unit( dialog, sz->cx );
1376     rect.bottom = msi_dialog_scale_unit( dialog, sz->cy );
1377     style = GetWindowLongPtrW( dialog->hwnd, GWL_STYLE );
1378     AdjustWindowRect( &rect, style, FALSE );
1379     sz->cx = rect.right - rect.left;
1380     sz->cy = rect.bottom - rect.top;
1381 }
1382
1383 static BOOL msi_control_set_next( msi_control *control, msi_control *next )
1384 {
1385     return SetWindowPos( next->hwnd, control->hwnd, 0, 0, 0, 0,
1386                          SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOREDRAW |
1387                          SWP_NOREPOSITION | SWP_NOSENDCHANGING | SWP_NOSIZE );
1388 }
1389
1390 static UINT msi_dialog_set_tab_order( msi_dialog *dialog )
1391 {
1392     msi_control *control, *tab_next;
1393
1394     for( control = dialog->control_list; control; control = control->next )
1395     {
1396         tab_next = msi_dialog_find_control( dialog, control->tabnext );
1397         if( !tab_next )
1398             continue;
1399         msi_control_set_next( control, tab_next );
1400     }
1401
1402     return ERROR_SUCCESS;
1403 }
1404
1405 static LRESULT msi_dialog_oncreate( HWND hwnd, LPCREATESTRUCTW cs )
1406 {
1407     static const WCHAR df[] = {
1408         'D','e','f','a','u','l','t','U','I','F','o','n','t',0 };
1409     msi_dialog *dialog = (msi_dialog*) cs->lpCreateParams;
1410     MSIRECORD *rec = NULL;
1411     LPCWSTR text;
1412     LPWSTR title = NULL;
1413     SIZE size;
1414
1415     TRACE("%p %p\n", dialog, dialog->package);
1416
1417     dialog->hwnd = hwnd;
1418     SetWindowLongPtrW( hwnd, GWLP_USERDATA, (LONG_PTR) dialog );
1419
1420     rec = msi_get_dialog_record( dialog );
1421     if( !rec )
1422     {
1423         TRACE("No record found for dialog %s\n", debugstr_w(dialog->name));
1424         return -1;
1425     }
1426
1427     dialog->scale = msi_dialog_get_sans_serif_height(dialog->hwnd);
1428
1429     size.cx = MSI_RecordGetInteger( rec, 4 );
1430     size.cy = MSI_RecordGetInteger( rec, 5 );
1431     msi_dialog_adjust_dialog_size( dialog, &size );
1432
1433     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
1434     text = MSI_RecordGetString( rec, 7 );
1435
1436     dialog->default_font = load_dynamic_property( dialog->package, df, NULL );
1437
1438     deformat_string( dialog->package, text, &title );
1439     SetWindowTextW( hwnd, title );
1440     SetWindowPos( hwnd, 0, 0, 0, size.cx, size.cy,
1441                   SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW );
1442
1443     HeapFree( GetProcessHeap(), 0, title );
1444     msiobj_release( &rec->hdr );
1445
1446     msi_dialog_build_font_list( dialog );
1447     msi_dialog_fill_controls( dialog );
1448     msi_dialog_evaluate_control_conditions( dialog );
1449     msi_dialog_set_tab_order( dialog );
1450
1451     return 0;
1452 }
1453
1454 static UINT msi_dialog_send_event( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
1455 {
1456     LPWSTR event_fmt = NULL, arg_fmt = NULL;
1457
1458     TRACE("Sending control event %s %s\n", debugstr_w(event), debugstr_w(arg));
1459
1460     deformat_string( dialog->package, event, &event_fmt );
1461     deformat_string( dialog->package, arg, &arg_fmt );
1462
1463     dialog->event_handler( dialog->package, event_fmt, arg_fmt, dialog );
1464
1465     HeapFree( GetProcessHeap(), 0, event_fmt );
1466     HeapFree( GetProcessHeap(), 0, arg_fmt );
1467
1468     return ERROR_SUCCESS;
1469 }
1470
1471 static UINT msi_dialog_set_property( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
1472 {
1473     static const WCHAR szNullArg[] = { '{','}',0 };
1474     LPWSTR p, prop, arg_fmt = NULL;
1475     UINT len;
1476
1477     len = strlenW(event);
1478     prop = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR));
1479     strcpyW( prop, &event[1] );
1480     p = strchrW( prop, ']' );
1481     if( p && p[1] == 0 )
1482     {
1483         *p = 0;
1484         if( strcmpW( szNullArg, arg ) )
1485             deformat_string( dialog->package, arg, &arg_fmt );
1486         MSI_SetPropertyW( dialog->package, prop, arg_fmt );
1487     }
1488     else
1489         ERR("Badly formatted property string - what happens?\n");
1490     HeapFree( GetProcessHeap(), 0, prop );
1491     return ERROR_SUCCESS;
1492 }
1493
1494 static UINT msi_dialog_control_event( MSIRECORD *rec, LPVOID param )
1495 {
1496     msi_dialog *dialog = param;
1497     LPCWSTR condition, event, arg;
1498     UINT r;
1499
1500     condition = MSI_RecordGetString( rec, 5 );
1501     r = MSI_EvaluateConditionW( dialog->package, condition );
1502     if( r )
1503     {
1504         event = MSI_RecordGetString( rec, 3 );
1505         arg = MSI_RecordGetString( rec, 4 );
1506         if( event[0] == '[' )
1507             msi_dialog_set_property( dialog, event, arg );
1508         else
1509             msi_dialog_send_event( dialog, event, arg );
1510     }
1511
1512     return ERROR_SUCCESS;
1513 }
1514
1515 static UINT msi_dialog_button_handler( msi_dialog *dialog,
1516                                        msi_control *control, WPARAM param )
1517 {
1518     static const WCHAR query[] = {
1519       'S','E','L','E','C','T',' ','*',' ',
1520       'F','R','O','M',' ','C','o','n','t','r','o','l','E','v','e','n','t',' ',
1521       'W','H','E','R','E',' ',
1522          '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',' ',
1523       'A','N','D',' ',
1524          '`','C','o','n','t','r','o','l','_','`',' ','=',' ','\'','%','s','\'',' ',
1525       'O','R','D','E','R',' ','B','Y',' ','`','O','r','d','e','r','i','n','g','`',0
1526     };
1527     MSIQUERY *view = NULL;
1528     UINT r;
1529
1530     if( HIWORD(param) != BN_CLICKED )
1531         return ERROR_SUCCESS;
1532
1533     r = MSI_OpenQuery( dialog->package->db, &view, query,
1534                        dialog->name, control->name );
1535     if( r != ERROR_SUCCESS )
1536     {
1537         ERR("query failed\n");
1538         return 0;
1539     }
1540
1541     r = MSI_IterateRecords( view, 0, msi_dialog_control_event, dialog );
1542     msiobj_release( &view->hdr );
1543
1544     return r;
1545 }
1546
1547 static UINT msi_dialog_get_checkbox_state( msi_dialog *dialog,
1548                 msi_control *control )
1549 {
1550     WCHAR state[2] = { 0 };
1551     DWORD sz = 2;
1552
1553     MSI_GetPropertyW( dialog->package, control->property, state, &sz );
1554     return state[0] ? 1 : 0;
1555 }
1556
1557 static void msi_dialog_set_checkbox_state( msi_dialog *dialog,
1558                 msi_control *control, UINT state )
1559 {
1560     static const WCHAR szState[] = { '1', 0 };
1561     LPCWSTR val;
1562
1563     /* if uncheck then the property is set to NULL */
1564     if (!state)
1565     {
1566         MSI_SetPropertyW( dialog->package, control->property, NULL );
1567         return;
1568     }
1569
1570     /* check for a custom state */
1571     if (control->value && control->value[0])
1572         val = control->value;
1573     else
1574         val = szState;
1575
1576     MSI_SetPropertyW( dialog->package, control->property, val );
1577 }
1578
1579 static void msi_dialog_checkbox_sync_state( msi_dialog *dialog,
1580                 msi_control *control )
1581 {
1582     UINT state;
1583
1584     state = msi_dialog_get_checkbox_state( dialog, control );
1585     SendMessageW( control->hwnd, BM_SETCHECK,
1586                   state ? BST_CHECKED : BST_UNCHECKED, 0 );
1587 }
1588
1589 static UINT msi_dialog_checkbox_handler( msi_dialog *dialog,
1590                 msi_control *control, WPARAM param )
1591 {
1592     UINT state;
1593
1594     if( HIWORD(param) != BN_CLICKED )
1595         return ERROR_SUCCESS;
1596
1597     TRACE("clicked checkbox %s, set %s\n", debugstr_w(control->name),
1598           debugstr_w(control->property));
1599
1600     state = msi_dialog_get_checkbox_state( dialog, control );
1601     state = state ? 0 : 1;
1602     msi_dialog_set_checkbox_state( dialog, control, state );
1603     msi_dialog_checkbox_sync_state( dialog, control );
1604
1605     return msi_dialog_button_handler( dialog, control, param );
1606 }
1607
1608 static UINT msi_dialog_edit_handler( msi_dialog *dialog,
1609                 msi_control *control, WPARAM param )
1610 {
1611     UINT sz, r;
1612     LPWSTR buf;
1613
1614     if( HIWORD(param) != EN_CHANGE )
1615         return ERROR_SUCCESS;
1616
1617     TRACE("edit %s contents changed, set %s\n", debugstr_w(control->name),
1618           debugstr_w(control->property));
1619
1620     sz = 0x20;
1621     buf = HeapAlloc( GetProcessHeap(), 0, sz*sizeof(WCHAR) );
1622     while( buf )
1623     {
1624         r = GetWindowTextW( control->hwnd, buf, sz );
1625         if( r < (sz-1) )
1626             break;
1627             sz *= 2;
1628         buf = HeapReAlloc( GetProcessHeap(), 0, buf, sz*sizeof(WCHAR) );
1629     }
1630
1631     MSI_SetPropertyW( dialog->package, control->property, buf );
1632
1633     HeapFree( GetProcessHeap(), 0, buf );
1634
1635     return ERROR_SUCCESS;
1636 }
1637
1638 static UINT msi_dialog_radiogroup_handler( msi_dialog *dialog,
1639                 msi_control *control, WPARAM param )
1640 {
1641     if( HIWORD(param) != BN_CLICKED )
1642         return ERROR_SUCCESS;
1643
1644     TRACE("clicked radio button %s, set %s\n", debugstr_w(control->name),
1645           debugstr_w(control->property));
1646
1647     MSI_SetPropertyW( dialog->package, control->property, control->name );
1648
1649     return msi_dialog_button_handler( dialog, control, param );
1650 }
1651
1652 static LRESULT msi_dialog_oncommand( msi_dialog *dialog, WPARAM param, HWND hwnd )
1653 {
1654     msi_control *control;
1655
1656     TRACE("%p %p %08x\n", dialog, hwnd, param);
1657
1658     control = msi_dialog_find_control_by_hwnd( dialog, hwnd );
1659     if( control )
1660     {
1661         if( control->handler )
1662         {
1663             control->handler( dialog, control, param );
1664             msi_dialog_evaluate_control_conditions( dialog );
1665         }
1666     }
1667     else
1668         ERR("button click from nowhere\n");
1669     return 0;
1670 }
1671
1672 static LRESULT WINAPI MSIDialog_WndProc( HWND hwnd, UINT msg,
1673                 WPARAM wParam, LPARAM lParam )
1674 {
1675     msi_dialog *dialog = (LPVOID) GetWindowLongPtrW( hwnd, GWLP_USERDATA );
1676
1677     TRACE("0x%04x\n", msg);
1678
1679     switch (msg)
1680     {
1681     case WM_CREATE:
1682         return msi_dialog_oncreate( hwnd, (LPCREATESTRUCTW)lParam );
1683
1684     case WM_COMMAND:
1685         return msi_dialog_oncommand( dialog, wParam, (HWND)lParam );
1686
1687     /* bounce back to our subclassed static control */
1688     case WM_CTLCOLORSTATIC:
1689         return SendMessageW( (HWND) lParam, WM_CTLCOLORSTATIC, wParam, lParam );
1690
1691     case WM_DESTROY:
1692         dialog->hwnd = NULL;
1693         return 0;
1694     }
1695     return DefWindowProcW(hwnd, msg, wParam, lParam);
1696 }
1697
1698 static LRESULT WINAPI MSIRadioGroup_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1699 {
1700     WNDPROC oldproc = (WNDPROC) GetPropW(hWnd, szButtonData);
1701
1702     TRACE("hWnd %p msg %04x wParam 0x%08x lParam 0x%08lx\n", hWnd, msg, wParam, lParam);
1703
1704     if (msg == WM_COMMAND) /* Forward notifications to dialog */
1705         SendMessageW(GetParent(hWnd), msg, wParam, lParam);
1706
1707     return CallWindowProcW(oldproc, hWnd, msg, wParam, lParam);
1708 }
1709
1710 static LRESULT WINAPI MSIHiddenWindowProc( HWND hwnd, UINT msg,
1711                 WPARAM wParam, LPARAM lParam )
1712 {
1713     msi_dialog *dialog = (msi_dialog*) lParam;
1714
1715     TRACE("%d %p\n", msg, dialog);
1716
1717     switch (msg)
1718     {
1719     case WM_MSI_DIALOG_CREATE:
1720         return msi_dialog_run_message_loop( dialog );
1721     case WM_MSI_DIALOG_DESTROY:
1722         msi_dialog_destroy( dialog );
1723         return 0;
1724     }
1725     return DefWindowProcW( hwnd, msg, wParam, lParam );
1726 }
1727
1728 /* functions that interface to other modules within MSI */
1729
1730 msi_dialog *msi_dialog_create( MSIPACKAGE* package, LPCWSTR szDialogName,
1731                                 msi_dialog_event_handler event_handler )
1732 {
1733     MSIRECORD *rec = NULL;
1734     msi_dialog *dialog;
1735
1736     TRACE("%p %s\n", package, debugstr_w(szDialogName));
1737
1738     /* allocate the structure for the dialog to use */
1739     dialog = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
1740                         sizeof *dialog + sizeof(WCHAR)*strlenW(szDialogName) );
1741     if( !dialog )
1742         return NULL;
1743     strcpyW( dialog->name, szDialogName );
1744     msiobj_addref( &package->hdr );
1745     dialog->package = package;
1746     dialog->event_handler = event_handler;
1747     dialog->finished = 0;
1748
1749     /* verify that the dialog exists */
1750     rec = msi_get_dialog_record( dialog );
1751     if( !rec )
1752     {
1753         HeapFree( GetProcessHeap(), 0, dialog );
1754         return NULL;
1755     }
1756     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
1757     msiobj_release( &rec->hdr );
1758
1759     return dialog;
1760 }
1761
1762 static void msi_process_pending_messages( HWND hdlg )
1763 {
1764     MSG msg;
1765
1766     while( PeekMessageW( &msg, 0, 0, 0, PM_REMOVE ) )
1767     {
1768         if( hdlg && IsDialogMessageW( hdlg, &msg ))
1769             continue;
1770         TranslateMessage( &msg );
1771         DispatchMessageW( &msg );
1772     }
1773 }
1774
1775 void msi_dialog_end_dialog( msi_dialog *dialog )
1776 {
1777     TRACE("%p\n", dialog);
1778     dialog->finished = 1;
1779     PostMessageW(dialog->hwnd, WM_NULL, 0, 0);
1780 }
1781
1782 void msi_dialog_check_messages( HANDLE handle )
1783 {
1784     DWORD r;
1785
1786     /* in threads other than the UI thread, block */
1787     if( uiThreadId != GetCurrentThreadId() )
1788     {
1789         if( handle )
1790             WaitForSingleObject( handle, INFINITE );
1791         return;
1792     }
1793
1794     /* there's two choices for the UI thread */
1795     while (1)
1796     {
1797         msi_process_pending_messages( NULL );
1798
1799         if( !handle )
1800             break;
1801
1802         /*
1803          * block here until somebody creates a new dialog or
1804          * the handle we're waiting on becomes ready
1805          */
1806         r = MsgWaitForMultipleObjects( 1, &handle, 0, INFINITE, QS_ALLINPUT );
1807         if( r == WAIT_OBJECT_0 )
1808             break;
1809     }
1810 }
1811
1812 UINT msi_dialog_run_message_loop( msi_dialog *dialog )
1813 {
1814     HWND hwnd;
1815
1816     if( !(dialog->attributes & msidbDialogAttributesVisible) )
1817         return ERROR_SUCCESS;
1818
1819     if( uiThreadId != GetCurrentThreadId() )
1820         return SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_CREATE, 0, (LPARAM) dialog );
1821
1822     /* create the dialog window, don't show it yet */
1823     hwnd = CreateWindowW( szMsiDialogClass, dialog->name, WS_OVERLAPPEDWINDOW,
1824                      CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
1825                      NULL, NULL, NULL, dialog );
1826     if( !hwnd )
1827     {
1828         ERR("Failed to create dialog %s\n", debugstr_w( dialog->name ));
1829         return ERROR_FUNCTION_FAILED;
1830     }
1831
1832     ShowWindow( hwnd, SW_SHOW );
1833     UpdateWindow( hwnd );
1834
1835     if( dialog->attributes & msidbDialogAttributesModal )
1836     {
1837         while( !dialog->finished )
1838         {
1839             MsgWaitForMultipleObjects( 0, NULL, 0, INFINITE, QS_ALLEVENTS );
1840             msi_process_pending_messages( dialog->hwnd );
1841         }
1842     }
1843     else
1844         return ERROR_IO_PENDING;
1845
1846     return ERROR_SUCCESS;
1847 }
1848
1849 void msi_dialog_do_preview( msi_dialog *dialog )
1850 {
1851     TRACE("\n");
1852     dialog->attributes |= msidbDialogAttributesVisible;
1853     dialog->attributes &= ~msidbDialogAttributesModal;
1854     msi_dialog_run_message_loop( dialog );
1855 }
1856
1857 void msi_dialog_destroy( msi_dialog *dialog )
1858 {
1859     if( uiThreadId != GetCurrentThreadId() )
1860     {
1861         SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_DESTROY, 0, (LPARAM) dialog );
1862         return;
1863     }
1864
1865     if( dialog->hwnd )
1866         ShowWindow( dialog->hwnd, SW_HIDE );
1867
1868     /* destroy the list of controls */
1869     while( dialog->control_list )
1870     {
1871         msi_control *t = dialog->control_list;
1872         dialog->control_list = t->next;
1873         /* leave dialog->hwnd - destroying parent destroys child windows */
1874         HeapFree( GetProcessHeap(), 0, t->property );
1875         HeapFree( GetProcessHeap(), 0, t->value );
1876         if( t->pic )
1877             IPicture_Release( t->pic );
1878         if( t->hIcon )
1879             DestroyIcon( t->hIcon );
1880         HeapFree( GetProcessHeap(), 0, t->tabnext );
1881         HeapFree( GetProcessHeap(), 0, t );
1882     }
1883
1884     /* destroy the list of fonts */
1885     while( dialog->font_list )
1886     {
1887         msi_font *t = dialog->font_list;
1888         dialog->font_list = t->next;
1889         DeleteObject( t->hfont );
1890         HeapFree( GetProcessHeap(), 0, t );
1891     }
1892     HeapFree( GetProcessHeap(), 0, dialog->default_font );
1893
1894     if( dialog->hwnd )
1895         DestroyWindow( dialog->hwnd );
1896
1897     msiobj_release( &dialog->package->hdr );
1898     dialog->package = NULL;
1899     HeapFree( GetProcessHeap(), 0, dialog );
1900 }
1901
1902 BOOL msi_dialog_register_class( void )
1903 {
1904     WNDCLASSW cls;
1905
1906     ZeroMemory( &cls, sizeof cls );
1907     cls.lpfnWndProc   = MSIDialog_WndProc;
1908     cls.hInstance     = NULL;
1909     cls.hIcon         = LoadIconW(0, (LPWSTR)IDI_APPLICATION);
1910     cls.hCursor       = LoadCursorW(0, (LPWSTR)IDC_ARROW);
1911     cls.hbrBackground = (HBRUSH)(COLOR_WINDOW);
1912     cls.lpszMenuName  = NULL;
1913     cls.lpszClassName = szMsiDialogClass;
1914
1915     if( !RegisterClassW( &cls ) )
1916         return FALSE;
1917
1918     cls.lpfnWndProc   = MSIHiddenWindowProc;
1919     cls.lpszClassName = szMsiHiddenWindow;
1920
1921     if( !RegisterClassW( &cls ) )
1922         return FALSE;
1923
1924     uiThreadId = GetCurrentThreadId();
1925
1926     hMsiHiddenWindow = CreateWindowW( szMsiHiddenWindow, NULL, WS_OVERLAPPED,
1927                                    0, 0, 100, 100, NULL, NULL, NULL, NULL );
1928     if( !hMsiHiddenWindow )
1929         return FALSE;
1930
1931     hRichedit = LoadLibraryA("riched20");
1932
1933     return TRUE;
1934 }
1935
1936 void msi_dialog_unregister_class( void )
1937 {
1938     DestroyWindow( hMsiHiddenWindow );
1939     UnregisterClassW( szMsiDialogClass, NULL );
1940     uiThreadId = 0;
1941     FreeLibrary( hRichedit );
1942 }