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 list entry;
  52     HWND hwnd;
  53     msi_handler handler;
  54     LPWSTR property;
  55     LPWSTR value;
  56     HBITMAP hBitmap;
  57     HICON hIcon;
  58     LPWSTR tabnext;
  59     HMODULE hDll;
  60     WCHAR name[1];
  61 };
  62
  63 typedef struct msi_font_tag
  64 {
  65     struct msi_font_tag *next;
  66     HFONT hfont;
  67     WCHAR name[1];
  68 } msi_font;
  69
  70 struct msi_dialog_tag
  71 {
  72     MSIPACKAGE *package;
  73     msi_dialog_event_handler event_handler;
  74     BOOL finished;
  75     INT scale;
  76     DWORD attributes;
  77     HWND hwnd;
  78     LPWSTR default_font;
  79     msi_font *font_list;
  80     struct list controls;
  81     HWND hWndFocus;
  82     WCHAR name[1];
  83 };
  84
  85 typedef UINT (*msi_dialog_control_func)( msi_dialog *dialog, MSIRECORD *rec );
  86 struct control_handler
  87 {
  88     LPCWSTR control_type;
  89     msi_dialog_control_func func;
  90 };
  91
  92 typedef struct
  93 {
  94     msi_dialog* dialog;
  95     msi_control *parent;
  96     DWORD       attributes;
  97 } radio_button_group_descr;
  98
  99 const WCHAR szMsiDialogClass[] = {
 100     'M','s','i','D','i','a','l','o','g','C','l','o','s','e','C','l','a','s','s',0
 101 };
 102 const WCHAR szMsiHiddenWindow[] = {
 103     'M','s','i','H','i','d','d','e','n','W','i','n','d','o','w',0 };
 104 const static WCHAR szStatic[] = { 'S','t','a','t','i','c',0 };
 105 const static WCHAR szButton[] = { 'B','U','T','T','O','N', 0 };
 106 const static WCHAR szButtonData[] = { 'M','S','I','D','A','T','A',0 };
 107 static const WCHAR szText[] = { 'T','e','x','t',0 };
 108 static const WCHAR szPushButton[] = { 'P','u','s','h','B','u','t','t','o','n',0 };
 109 static const WCHAR szLine[] = { 'L','i','n','e',0 };
 110 static const WCHAR szBitmap[] = { 'B','i','t','m','a','p',0 };
 111 static const WCHAR szCheckBox[] = { 'C','h','e','c','k','B','o','x',0 };
 112 static const WCHAR szScrollableText[] = {
 113     'S','c','r','o','l','l','a','b','l','e','T','e','x','t',0 };
 114 static const WCHAR szComboBox[] = { 'C','o','m','b','o','B','o','x',0 };
 115 static const WCHAR szEdit[] = { 'E','d','i','t',0 };
 116 static const WCHAR szMaskedEdit[] = { 'M','a','s','k','e','d','E','d','i','t',0 };
 117 static const WCHAR szPathEdit[] = { 'P','a','t','h','E','d','i','t',0 };
 118 static const WCHAR szRadioButtonGroup[] = {
 119     'R','a','d','i','o','B','u','t','t','o','n','G','r','o','u','p',0 };
 120 static const WCHAR szIcon[] = { 'I','c','o','n',0 };
 121
 122 static UINT msi_dialog_checkbox_handler( msi_dialog *, msi_control *, WPARAM );
 123 static void msi_dialog_checkbox_sync_state( msi_dialog *, msi_control * );
 124 static UINT msi_dialog_button_handler( msi_dialog *, msi_control *, WPARAM );
 125 static UINT msi_dialog_edit_handler( msi_dialog *, msi_control *, WPARAM );
 126 static UINT msi_dialog_radiogroup_handler( msi_dialog *, msi_control *, WPARAM param );
 127 static UINT msi_dialog_evaluate_control_conditions( msi_dialog *dialog );
 128 static LRESULT WINAPI MSIRadioGroup_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
 129
 130
 131 /* dialog sequencing */
 132
 133 #define WM_MSI_DIALOG_CREATE  (WM_USER+0x100)
 134 #define WM_MSI_DIALOG_DESTROY (WM_USER+0x101)
 135
 136 static DWORD uiThreadId;
 137 static HWND hMsiHiddenWindow;
 138
 139 static INT msi_dialog_scale_unit( msi_dialog *dialog, INT val )
 140 {
 141     return (dialog->scale * val + 5) / 10;
 142 }
 143
 144 static msi_control *msi_dialog_find_control( msi_dialog *dialog, LPCWSTR name )
 145 {
 146     msi_control *control;
 147
 148     if( !name )
 149         return NULL;
 150     LIST_FOR_EACH_ENTRY( control, &dialog->controls, msi_control, entry )
 151         if( !strcmpW( control->name, name ) ) /* FIXME: case sensitive? */
 152             break;
 153     return control;
 154 }
 155
 156 static msi_control *msi_dialog_find_control_by_hwnd( msi_dialog *dialog, HWND hwnd )
 157 {
 158     msi_control *control;
 159
 160     LIST_FOR_EACH_ENTRY( control, &dialog->controls, msi_control, entry )
 161         if( hwnd == control->hwnd )
 162             break;
 163     return control;
 164 }
 165
 166 static LPWSTR msi_get_deformatted_field( MSIPACKAGE *package, MSIRECORD *rec, int field )
 167 {
 168     LPCWSTR str = MSI_RecordGetString( rec, field );
 169     LPWSTR ret = NULL;
 170
 171     if (str)
 172         deformat_string( package, str, &ret );
 173     return ret;
 174 }
 175
 176 /*
 177  * msi_dialog_get_style
 178  *
 179  * Extract the {\style} string from the front of the text to display and
 180  *  update the pointer.
 181  */
 182 static LPWSTR msi_dialog_get_style( LPCWSTR p, LPCWSTR *rest )
 183 {
 184     LPWSTR ret = NULL;
 185     LPCWSTR q, i;
 186     DWORD len;
 187
 188     *rest = p;
 189     if( !p )
 190         return ret;
 191     if( *p++ != '{' )
 192         return ret;
 193     q = strchrW( p, '}' );
 194     if( !q )
 195         return ret;
 196     if( *p++ != '\\' )
 197         return ret;
 198
 199     /* little bit of sanity checking to stop us getting confused with RTF */
 200     for( i=p; i<q; i++ )
 201         if( *i == '}' || *i == '\\' )
 202             return ret;
 203
 204     *rest = ++q;
 205     len = q - p;
 206
 207     ret = msi_alloc( len*sizeof(WCHAR) );
 208     if( !ret )
 209         return ret;
 210     memcpy( ret, p, len*sizeof(WCHAR) );
 211     ret[len-1] = 0;
 212     return ret;
 213 }
 214
 215 static UINT msi_dialog_add_font( MSIRECORD *rec, LPVOID param )
 216 {
 217     msi_dialog *dialog = param;
 218     msi_font *font;
 219     LPCWSTR face, name;
 220     LOGFONTW lf;
 221     INT style;
 222     HDC hdc;
 223
 224     /* create a font and add it to the list */
 225     name = MSI_RecordGetString( rec, 1 );
 226     font = msi_alloc( sizeof *font + strlenW( name )*sizeof (WCHAR) );
 227     strcpyW( font->name, name );
 228     font->next = dialog->font_list;
 229     dialog->font_list = font;
 230
 231     memset( &lf, 0, sizeof lf );
 232     face = MSI_RecordGetString( rec, 2 );
 233     lf.lfHeight = MSI_RecordGetInteger( rec, 3 );
 234     style = MSI_RecordGetInteger( rec, 5 );
 235     if( style & msidbTextStyleStyleBitsBold )
 236         lf.lfWeight = FW_BOLD;
 237     if( style & msidbTextStyleStyleBitsItalic )
 238         lf.lfItalic = TRUE;
 239     if( style & msidbTextStyleStyleBitsUnderline )
 240         lf.lfUnderline = TRUE;
 241     if( style & msidbTextStyleStyleBitsStrike )
 242         lf.lfStrikeOut = TRUE;
 243     lstrcpynW( lf.lfFaceName, face, LF_FACESIZE );
 244
 245     /* adjust the height */
 246     hdc = GetDC( dialog->hwnd );
 247     if (hdc)
 248     {
 249         lf.lfHeight = -MulDiv(lf.lfHeight, GetDeviceCaps(hdc, LOGPIXELSY), 72);
 250         ReleaseDC( dialog->hwnd, hdc );
 251     }
 252
 253     font->hfont = CreateFontIndirectW( &lf );
 254
 255     TRACE("Adding font style %s\n", debugstr_w(font->name) );
 256
 257     return ERROR_SUCCESS;
 258 }
 259
 260 static msi_font *msi_dialog_find_font( msi_dialog *dialog, LPCWSTR name )
 261 {
 262     msi_font *font;
 263
 264     for( font = dialog->font_list; font; font = font->next )
 265         if( !strcmpW( font->name, name ) )  /* FIXME: case sensitive? */
 266             break;
 267
 268     return font;
 269 }
 270
 271 static UINT msi_dialog_set_font( msi_dialog *dialog, HWND hwnd, LPCWSTR name )
 272 {
 273     msi_font *font;
 274
 275     font = msi_dialog_find_font( dialog, name );
 276     if( font )
 277         SendMessageW( hwnd, WM_SETFONT, (WPARAM) font->hfont, TRUE );
 278     else
 279         ERR("No font entry for %s\n", debugstr_w(name));
 280     return ERROR_SUCCESS;
 281 }
 282
 283 static UINT msi_dialog_build_font_list( msi_dialog *dialog )
 284 {
 285     static const WCHAR query[] = {
 286       'S','E','L','E','C','T',' ','*',' ',
 287       'F','R','O','M',' ','`','T','e','x','t','S','t','y','l','e','`',' ',0
 288     };
 289     UINT r;
 290     MSIQUERY *view = NULL;
 291
 292     TRACE("dialog %p\n", dialog );
 293
 294     r = MSI_OpenQuery( dialog->package->db, &view, query );
 295     if( r != ERROR_SUCCESS )
 296         return r;
 297
 298     r = MSI_IterateRecords( view, NULL, msi_dialog_add_font, dialog );
 299     msiobj_release( &view->hdr );
 300
 301     return r;
 302 }
 303
 304 static msi_control *msi_dialog_create_window( msi_dialog *dialog,
 305                 MSIRECORD *rec, LPCWSTR szCls, LPCWSTR name, LPCWSTR text,
 306                 DWORD style, HWND parent )
 307 {
 308     DWORD x, y, width, height;
 309     LPWSTR font = NULL, title_font = NULL;
 310     LPCWSTR title = NULL;
 311     msi_control *control;
 312
 313     style |= WS_CHILD;
 314
 315     control = msi_alloc( sizeof *control + strlenW(name)*sizeof(WCHAR) );
 316     strcpyW( control->name, name );
 317     list_add_head( &dialog->controls, &control->entry );
 318     control->handler = NULL;
 319     control->property = NULL;
 320     control->value = NULL;
 321     control->hBitmap = NULL;
 322     control->hIcon = NULL;
 323     control->hDll = NULL;
 324     control->tabnext = strdupW( MSI_RecordGetString( rec, 11) );
 325
 326     x = MSI_RecordGetInteger( rec, 4 );
 327     y = MSI_RecordGetInteger( rec, 5 );
 328     width = MSI_RecordGetInteger( rec, 6 );
 329     height = MSI_RecordGetInteger( rec, 7 );
 330
 331     x = msi_dialog_scale_unit( dialog, x );
 332     y = msi_dialog_scale_unit( dialog, y );
 333     width = msi_dialog_scale_unit( dialog, width );
 334     height = msi_dialog_scale_unit( dialog, height );
 335
 336     if( text )
 337     {
 338         deformat_string( dialog->package, text, &title_font );
 339         font = msi_dialog_get_style( title_font, &title );
 340     }
 341
 342     control->hwnd = CreateWindowW( szCls, title, style,
 343                           x, y, width, height, parent, NULL, NULL, NULL );
 344
 345     TRACE("Dialog %s control %s hwnd %p\n",
 346            debugstr_w(dialog->name), debugstr_w(text), control->hwnd );
 347
 348     msi_dialog_set_font( dialog, control->hwnd,
 349                          font ? font : dialog->default_font );
 350
 351     msi_free( title_font );
 352     msi_free( font );
 353
 354     return control;
 355 }
 356
 357 static MSIRECORD *msi_get_binary_record( MSIDATABASE *db, LPCWSTR name )
 358 {
 359     const static WCHAR query[] = {
 360         's','e','l','e','c','t',' ','*',' ',
 361         'f','r','o','m',' ','B','i','n','a','r','y',' ',
 362         'w','h','e','r','e',' ',
 363             '`','N','a','m','e','`',' ','=',' ','\'','%','s','\'',0
 364     };
 365
 366     return MSI_QueryGetRecord( db, query, name );
 367 }
 368
 369 static LPWSTR msi_create_tmp_path(void)
 370 {
 371     WCHAR tmp[MAX_PATH];
 372     LPWSTR path = NULL;
 373     static const WCHAR prefix[] = { 'm','s','i',0 };
 374     DWORD len, r;
 375
 376     r = GetTempPathW( MAX_PATH, tmp );
 377     if( !r )
 378         return path;
 379     len = lstrlenW( tmp ) + 20;
 380     path = msi_alloc( len * sizeof (WCHAR) );
 381     if( path )
 382     {
 383         r = GetTempFileNameW( tmp, prefix, 0, path );
 384         if (!r)
 385         {
 386             msi_free( path );
 387             path = NULL;
 388         }
 389     }
 390     return path;
 391 }
 392
 393
 394 static HANDLE msi_load_image( MSIDATABASE *db, LPCWSTR name, UINT type,
 395                               UINT cx, UINT cy, UINT flags )
 396 {
 397     MSIRECORD *rec = NULL;
 398     HANDLE himage = NULL;
 399     LPWSTR tmp;
 400     UINT r;
 401
 402     TRACE("%p %s %u %u %08x\n", db, debugstr_w(name), cx, cy, flags);
 403
 404     tmp = msi_create_tmp_path();
 405     if( !tmp )
 406         return himage;
 407
 408     rec = msi_get_binary_record( db, name );
 409     if( rec )
 410     {
 411         r = MSI_RecordStreamToFile( rec, 2, tmp );
 412         if( r == ERROR_SUCCESS )
 413         {
 414             himage = LoadImageW( 0, tmp, type, cx, cy, flags );
 415             DeleteFileW( tmp );
 416         }
 417         msiobj_release( &rec->hdr );
 418     }
 419
 420     msi_free( tmp );
 421     return himage;
 422 }
 423
 424 static HICON msi_load_icon( MSIDATABASE *db, LPCWSTR text, UINT attributes )
 425 {
 426     DWORD cx = 0, cy = 0, flags;
 427
 428     flags = LR_LOADFROMFILE | LR_DEFAULTSIZE;
 429     if( attributes & msidbControlAttributesFixedSize )
 430     {
 431         flags &= ~LR_DEFAULTSIZE;
 432         if( attributes & msidbControlAttributesIconSize16 )
 433         {
 434             cx += 16;
 435             cy += 16;
 436         }
 437         if( attributes & msidbControlAttributesIconSize32 )
 438         {
 439             cx += 32;
 440             cy += 32;
 441         }
 442         /* msidbControlAttributesIconSize48 handled by above logic */
 443     }
 444     return msi_load_image( db, text, IMAGE_ICON, cx, cy, flags );
 445 }
 446
 447
 448 /* called from the Control Event subscription code */
 449 void msi_dialog_handle_event( msi_dialog* dialog, LPCWSTR control,
 450                               LPCWSTR attribute, MSIRECORD *rec )
 451 {
 452     msi_control* ctrl;
 453     LPCWSTR text;
 454
 455     ctrl = msi_dialog_find_control( dialog, control );
 456     if (!ctrl)
 457         return;
 458     if( lstrcmpW(attribute, szText) )
 459         return;
 460     text = MSI_RecordGetString( rec , 1 );
 461     SetWindowTextW( ctrl->hwnd, text );
 462     msi_dialog_check_messages( NULL );
 463 }
 464
 465 static void msi_dialog_map_events(msi_dialog* dialog, LPCWSTR control)
 466 {
 467     static WCHAR Query[] = {
 468         'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
 469          '`','E','v','e','n','t','M','a','p','p','i','n','g','`',' ',
 470         'W','H','E','R','E',' ',
 471          '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',' ',
 472         'A','N','D',' ',
 473          '`','C','o','n','t','r','o','l','_','`',' ','=',' ','\'','%','s','\'',0
 474     };
 475     MSIRECORD *row;
 476     LPCWSTR event, attribute;
 477
 478     row = MSI_QueryGetRecord( dialog->package->db, Query, dialog->name, control );
 479     if (!row)
 480         return;
 481
 482     event = MSI_RecordGetString( row, 3 );
 483     attribute = MSI_RecordGetString( row, 4 );
 484     ControlEvent_SubscribeToEvent( dialog->package, event, control, attribute );
 485     msiobj_release( &row->hdr );
 486 }
 487
 488 /* everything except radio buttons */
 489 static msi_control *msi_dialog_add_control( msi_dialog *dialog,
 490                 MSIRECORD *rec, LPCWSTR szCls, DWORD style )
 491 {
 492     DWORD attributes;
 493     LPCWSTR text, name;
 494
 495     name = MSI_RecordGetString( rec, 2 );
 496     attributes = MSI_RecordGetInteger( rec, 8 );
 497     text = MSI_RecordGetString( rec, 10 );
 498     if( attributes & msidbControlAttributesVisible )
 499         style |= WS_VISIBLE;
 500     if( ~attributes & msidbControlAttributesEnabled )
 501         style |= WS_DISABLED;
 502
 503     msi_dialog_map_events(dialog, name);
 504
 505     return msi_dialog_create_window( dialog, rec, szCls, name, text,
 506                                      style, dialog->hwnd );
 507 }
 508
 509 struct msi_text_info
 510 {
 511     WNDPROC oldproc;
 512     DWORD attributes;
 513 };
 514
 515 /*
 516  * we don't erase our own background,
 517  * so we have to make sure that the parent window redraws first
 518  */
 519 static void msi_text_on_settext( HWND hWnd )
 520 {
 521     HWND hParent;
 522     RECT rc;
 523
 524     hParent = GetParent( hWnd );
 525     GetWindowRect( hWnd, &rc );
 526     MapWindowPoints( NULL, hParent, (LPPOINT) &rc, 2 );
 527     InvalidateRect( hParent, &rc, TRUE );
 528 }
 529
 530 static LRESULT WINAPI
 531 MSIText_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 532 {
 533     struct msi_text_info *info;
 534     LRESULT r = 0;
 535
 536     TRACE("%p %04x %08x %08lx\n", hWnd, msg, wParam, lParam);
 537
 538     info = GetPropW(hWnd, szButtonData);
 539
 540     if( msg == WM_CTLCOLORSTATIC &&
 541        ( info->attributes & msidbControlAttributesTransparent ) )
 542     {
 543         SetBkMode( (HDC)wParam, TRANSPARENT );
 544         return (LRESULT) GetStockObject(NULL_BRUSH);
 545     }
 546
 547     r = CallWindowProcW(info->oldproc, hWnd, msg, wParam, lParam);
 548
 549     switch( msg )
 550     {
 551     case WM_SETTEXT:
 552         msi_text_on_settext( hWnd );
 553         break;
 554     case WM_NCDESTROY:
 555         msi_free( info );
 556         RemovePropW( hWnd, szButtonData );
 557         break;
 558     }
 559
 560     return r;
 561 }
 562
 563 static UINT msi_dialog_text_control( msi_dialog *dialog, MSIRECORD *rec )
 564 {
 565     msi_control *control;
 566     struct msi_text_info *info;
 567
 568     TRACE("%p %p\n", dialog, rec);
 569
 570     control = msi_dialog_add_control( dialog, rec, szStatic, SS_LEFT | WS_GROUP );
 571     if( !control )
 572         return ERROR_FUNCTION_FAILED;
 573
 574     info = msi_alloc( sizeof *info );
 575     if( !info )
 576         return ERROR_SUCCESS;
 577
 578     info->attributes = MSI_RecordGetInteger( rec, 8 );
 579     if( info->attributes & msidbControlAttributesTransparent )
 580         SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_TRANSPARENT );
 581
 582     info->oldproc = (WNDPROC) SetWindowLongPtrW( control->hwnd, GWLP_WNDPROC,
 583                                           (LONG_PTR)MSIText_WndProc );
 584     SetPropW( control->hwnd, szButtonData, info );
 585
 586     return ERROR_SUCCESS;
 587 }
 588
 589 static UINT msi_dialog_button_control( msi_dialog *dialog, MSIRECORD *rec )
 590 {
 591     msi_control *control;
 592     UINT attributes, style;
 593     LPWSTR text;
 594
 595     TRACE("%p %p\n", dialog, rec);
 596
 597     style = WS_TABSTOP;
 598     attributes = MSI_RecordGetInteger( rec, 8 );
 599     if( attributes & msidbControlAttributesIcon )
 600         style |= BS_ICON;
 601
 602     control = msi_dialog_add_control( dialog, rec, szButton, style );
 603     if( !control )
 604         return ERROR_FUNCTION_FAILED;
 605
 606     control->handler = msi_dialog_button_handler;
 607
 608     /* set the icon */
 609     text = msi_get_deformatted_field( dialog->package, rec, 10 );
 610     control->hIcon = msi_load_icon( dialog->package->db, text, attributes );
 611     if( attributes & msidbControlAttributesIcon )
 612         SendMessageW( control->hwnd, BM_SETIMAGE, IMAGE_ICON, (LPARAM) control->hIcon );
 613     msi_free( text );
 614
 615     return ERROR_SUCCESS;
 616 }
 617
 618 static LPWSTR msi_get_checkbox_value( msi_dialog *dialog, LPCWSTR prop )
 619 {
 620     const static WCHAR query[] = {
 621         'S','E','L','E','C','T',' ','*',' ',
 622         'F','R','O','M',' ','`','C','h','e','c','k','B','o','x',' ','`',
 623         'W','H','E','R','E',' ',
 624         '`','P','r','o','p','e','r','t','y','`',' ','=',' ',
 625         '\'','%','s','\'',0
 626     };
 627     MSIRECORD *rec = NULL;
 628     LPCWSTR val = NULL;
 629     LPWSTR ret = NULL;
 630
 631     /* find if there is a value associated with the checkbox */
 632     rec = MSI_QueryGetRecord( dialog->package->db, query, prop );
 633     if (!rec)
 634         return ret;
 635
 636     val = MSI_RecordGetString( rec, 2 );
 637     if (val)
 638     {
 639         deformat_string( dialog->package, val, &ret );
 640         if( ret && !ret[0] )
 641         {
 642             msi_free( ret );
 643             ret = NULL;
 644         }
 645     }
 646     msiobj_release( &rec->hdr );
 647     if (ret)
 648         return ret;
 649
 650     ret = msi_dup_property( dialog->package, prop );
 651     if( ret && !ret[0] )
 652     {
 653         msi_free( ret );
 654         ret = NULL;
 655     }
 656
 657     return ret;
 658 }
 659
 660 static UINT msi_dialog_checkbox_control( msi_dialog *dialog, MSIRECORD *rec )
 661 {
 662     msi_control *control;
 663     LPCWSTR prop;
 664
 665     TRACE("%p %p\n", dialog, rec);
 666
 667     control = msi_dialog_add_control( dialog, rec, szButton,
 668                                 BS_CHECKBOX | BS_MULTILINE | WS_TABSTOP );
 669     control->handler = msi_dialog_checkbox_handler;
 670     prop = MSI_RecordGetString( rec, 9 );
 671     if( prop )
 672     {
 673         control->property = strdupW( prop );
 674         control->value = msi_get_checkbox_value( dialog, prop );
 675         TRACE("control %s value %s\n", debugstr_w(control->property),
 676               debugstr_w(control->value));
 677     }
 678     msi_dialog_checkbox_sync_state( dialog, control );
 679
 680     return ERROR_SUCCESS;
 681 }
 682
 683 static UINT msi_dialog_line_control( msi_dialog *dialog, MSIRECORD *rec )
 684 {
 685     TRACE("%p %p\n", dialog, rec);
 686
 687     msi_dialog_add_control( dialog, rec, szStatic, SS_ETCHEDHORZ | SS_SUNKEN );
 688     return ERROR_SUCCESS;
 689 }
 690
 691 struct msi_streamin_info
 692 {
 693     LPSTR string;
 694     DWORD offset;
 695     DWORD length;
 696 };
 697
 698 static DWORD CALLBACK
 699 msi_richedit_stream_in( DWORD_PTR arg, LPBYTE buffer, LONG count, LONG *pcb )
 700 {
 701     struct msi_streamin_info *info = (struct msi_streamin_info*) arg;
 702
 703     if( (count + info->offset) > info->length )
 704         count = info->length - info->offset;
 705     memcpy( buffer, &info->string[ info->offset ], count );
 706     *pcb = count;
 707     info->offset += count;
 708
 709     TRACE("%ld/%ld\n", info->offset, info->length);
 710
 711     return 0;
 712 }
 713
 714 static UINT msi_dialog_scrolltext_control( msi_dialog *dialog, MSIRECORD *rec )
 715 {
 716     const static WCHAR szRichEdit20W[] = {
 717         'R','i','c','h','E','d','i','t','2','0','W',0
 718     };
 719     struct msi_streamin_info info;
 720     msi_control *control;
 721     LPCWSTR text;
 722     EDITSTREAM es;
 723     DWORD style;
 724     HMODULE hRichedit;
 725
 726     hRichedit = LoadLibraryA("riched20");
 727
 728     style = WS_BORDER | ES_MULTILINE | WS_VSCROLL |
 729             ES_READONLY | ES_AUTOVSCROLL | WS_TABSTOP;
 730     control = msi_dialog_add_control( dialog, rec, szRichEdit20W, style );
 731     if (!control)
 732         return ERROR_FUNCTION_FAILED;
 733
 734     control->hDll = hRichedit;
 735
 736     text = MSI_RecordGetString( rec, 10 );
 737     info.string = strdupWtoA( text );
 738     info.offset = 0;
 739     info.length = lstrlenA( info.string ) + 1;
 740
 741     es.dwCookie = (DWORD_PTR) &info;
 742     es.dwError = 0;
 743     es.pfnCallback = msi_richedit_stream_in;
 744
 745     SendMessageW( control->hwnd, EM_STREAMIN, SF_RTF, (LPARAM) &es );
 746
 747     msi_free( info.string );
 748
 749     return ERROR_SUCCESS;
 750 }
 751
 752 static UINT msi_dialog_bitmap_control( msi_dialog *dialog, MSIRECORD *rec )
 753 {
 754     UINT cx, cy, flags, style, attributes;
 755     msi_control *control;
 756     LPWSTR text;
 757
 758     flags = LR_LOADFROMFILE;
 759     style = SS_BITMAP | SS_LEFT | WS_GROUP;
 760
 761     attributes = MSI_RecordGetInteger( rec, 8 );
 762     if( attributes & msidbControlAttributesFixedSize )
 763     {
 764         flags |= LR_DEFAULTSIZE;
 765         style |= SS_CENTERIMAGE;
 766     }
 767
 768     control = msi_dialog_add_control( dialog, rec, szStatic, style );
 769     cx = MSI_RecordGetInteger( rec, 6 );
 770     cy = MSI_RecordGetInteger( rec, 7 );
 771     cx = msi_dialog_scale_unit( dialog, cx );
 772     cy = msi_dialog_scale_unit( dialog, cy );
 773
 774     text = msi_get_deformatted_field( dialog->package, rec, 10 );
 775     control->hBitmap = msi_load_image( dialog->package->db, text,
 776                                        IMAGE_BITMAP, cx, cy, flags );
 777     if( control->hBitmap )
 778         SendMessageW( control->hwnd, STM_SETIMAGE,
 779                       IMAGE_BITMAP, (LPARAM) control->hBitmap );
 780     else
 781         ERR("Failed to load bitmap %s\n", debugstr_w(text));
 782
 783     msi_free( text );
 784
 785     return ERROR_SUCCESS;
 786 }
 787
 788 static UINT msi_dialog_icon_control( msi_dialog *dialog, MSIRECORD *rec )
 789 {
 790     msi_control *control;
 791     DWORD attributes;
 792     LPWSTR text;
 793
 794     TRACE("\n");
 795
 796     control = msi_dialog_add_control( dialog, rec, szStatic,
 797                             SS_ICON | SS_CENTERIMAGE | WS_GROUP );
 798
 799     attributes = MSI_RecordGetInteger( rec, 8 );
 800     text = msi_get_deformatted_field( dialog->package, rec, 10 );
 801     control->hIcon = msi_load_icon( dialog->package->db, text, attributes );
 802     if( control->hIcon )
 803         SendMessageW( control->hwnd, STM_SETICON, (WPARAM) control->hIcon, 0 );
 804     else
 805         ERR("Failed to load bitmap %s\n", debugstr_w(text));
 806     msi_free( text );
 807     return ERROR_SUCCESS;
 808 }
 809
 810 static UINT msi_dialog_combo_control( msi_dialog *dialog, MSIRECORD *rec )
 811 {
 812     static const WCHAR szCombo[] = { 'C','O','M','B','O','B','O','X',0 };
 813
 814     msi_dialog_add_control( dialog, rec, szCombo,
 815                             SS_BITMAP | SS_LEFT | SS_CENTERIMAGE );
 816     return ERROR_SUCCESS;
 817 }
 818
 819 static UINT msi_dialog_edit_control( msi_dialog *dialog, MSIRECORD *rec )
 820 {
 821     msi_control *control;
 822     LPCWSTR prop;
 823     LPWSTR val;
 824
 825     control = msi_dialog_add_control( dialog, rec, szEdit,
 826                                       WS_BORDER | WS_TABSTOP );
 827     control->handler = msi_dialog_edit_handler;
 828     prop = MSI_RecordGetString( rec, 9 );
 829     if( prop )
 830         control->property = strdupW( prop );
 831     val = msi_dup_property( dialog->package, control->property );
 832     SetWindowTextW( control->hwnd, val );
 833     msi_free( val );
 834     return ERROR_SUCCESS;
 835 }
 836
 837 /******************** Masked Edit ********************************************/
 838
 839 #define MASK_MAX_GROUPS 10
 840
 841 struct msi_mask_group
 842 {
 843     UINT len;
 844     UINT ofs;
 845     WCHAR type;
 846     HWND hwnd;
 847 };
 848
 849 struct msi_maskedit_info
 850 {
 851     msi_dialog *dialog;
 852     WNDPROC oldproc;
 853     HWND hwnd;
 854     LPWSTR prop;
 855     UINT num_chars;
 856     UINT num_groups;
 857     struct msi_mask_group group[MASK_MAX_GROUPS];
 858 };
 859
 860 static void msi_mask_control_change( struct msi_maskedit_info *info )
 861 {
 862     LPWSTR val;
 863     UINT i, n, r;
 864
 865     val = msi_alloc( (info->num_chars+1)*sizeof(WCHAR) );
 866     for( i=0, n=0; i<info->num_groups; i++ )
 867     {
 868         if( (info->group[i].len + n) > info->num_chars )
 869         {
 870             ERR("can't fit control %d text into template\n",i);
 871             break;
 872         }
 873         r = GetWindowTextW( info->group[i].hwnd, &val[n], info->group[i].len+1 );
 874         if( r != info->group[i].len )
 875             break;
 876         n += r;
 877     }
 878
 879     TRACE("%d/%d controls were good\n", i, info->num_groups);
 880
 881     if( i == info->num_groups )
 882     {
 883         TRACE("Set property %s to %s\n",
 884               debugstr_w(info->prop), debugstr_w(val) );
 885         CharUpperBuffW( val, info->num_chars );
 886         MSI_SetPropertyW( info->dialog->package, info->prop, val );
 887         msi_dialog_evaluate_control_conditions( info->dialog );
 888     }
 889     msi_free( val );
 890 }
 891
 892 /* now move to the next control if necessary */
 893 static VOID msi_mask_next_control( struct msi_maskedit_info *info, HWND hWnd )
 894 {
 895     HWND hWndNext;
 896     UINT len, i;
 897
 898     for( i=0; i<info->num_groups; i++ )
 899         if( info->group[i].hwnd == hWnd )
 900             break;
 901
 902     /* don't move from the last control */
 903     if( i >= (info->num_groups-1) )
 904         return;
 905
 906     len = SendMessageW( hWnd, WM_GETTEXTLENGTH, 0, 0 );
 907     if( len < info->group[i].len )
 908         return;
 909
 910     hWndNext = GetNextDlgTabItem( GetParent( hWnd ), hWnd, FALSE );
 911     SetFocus( hWndNext );
 912 }
 913
 914 static LRESULT WINAPI
 915 MSIMaskedEdit_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 916 {
 917     struct msi_maskedit_info *info;
 918     HRESULT r;
 919
 920     TRACE("%p %04x %08x %08lx\n", hWnd, msg, wParam, lParam);
 921
 922     info = GetPropW(hWnd, szButtonData);
 923
 924     r = CallWindowProcW(info->oldproc, hWnd, msg, wParam, lParam);
 925
 926     switch( msg )
 927     {
 928     case WM_COMMAND:
 929         if (HIWORD(wParam) == EN_CHANGE)
 930         {
 931             msi_mask_control_change( info );
 932             msi_mask_next_control( info, (HWND) lParam );
 933         }
 934         break;
 935     case WM_NCDESTROY:
 936         msi_free( info->prop );
 937         msi_free( info );
 938         RemovePropW( hWnd, szButtonData );
 939         break;
 940     }
 941
 942     return r;
 943 }
 944
 945 /* fish the various bits of the property out and put them in the control */
 946 static void
 947 msi_maskedit_set_text( struct msi_maskedit_info *info, LPCWSTR text )
 948 {
 949     LPCWSTR p;
 950     UINT i;
 951
 952     p = text;
 953     for( i = 0; i < info->num_groups; i++ )
 954     {
 955         if( info->group[i].len < lstrlenW( p ) )
 956         {
 957             LPWSTR chunk = strdupW( p );
 958             chunk[ info->group[i].len ] = 0;
 959             SetWindowTextW( info->group[i].hwnd, chunk );
 960             msi_free( chunk );
 961         }
 962         else
 963         {
 964             SetWindowTextW( info->group[i].hwnd, p );
 965             break;
 966         }
 967         p += info->group[i].len;
 968     }
 969 }
 970
 971 static struct msi_maskedit_info * msi_dialog_parse_groups( LPCWSTR mask )
 972 {
 973     struct msi_maskedit_info * info = NULL;
 974     int i = 0, n = 0, total = 0;
 975     LPCWSTR p;
 976
 977     TRACE("masked control, template %s\n", debugstr_w(mask));
 978
 979     if( !mask )
 980         return info;
 981
 982     p = strchrW(mask, '<');
 983     if( !p )
 984         return info;
 985
 986     info = msi_alloc_zero( sizeof *info );
 987     if( !info )
 988         return info;
 989
 990     p++;
 991     for( i=0; i<MASK_MAX_GROUPS; i++ )
 992     {
 993         while (*p=='-')
 994         {
 995             total++;
 996             p++;
 997         }
 998
 999         /* stop at the end of the string */
1000         if( p[0] == 0 || p[0] == '>' )
1001             break;
1002
1003         /* count the number of the same identifier */
1004         for( n=0; p[n] == p[0]; n++ )
1005             ;
1006         info->group[i].ofs = total;
1007         info->group[i].type = p[0];
1008         if( p[n] == '=' )
1009         {
1010             n++;
1011             total++; /* an extra not part of the group */
1012         }
1013         info->group[i].len = n;
1014         total += n;
1015         p += n;
1016     }
1017
1018     TRACE("%d characters in %d groups\n", total, i );
1019     if( i == MASK_MAX_GROUPS )
1020         ERR("too many groups in PIDTemplate %s\n", debugstr_w(mask));
1021
1022     info->num_chars = total;
1023     info->num_groups = i;
1024
1025     return info;
1026 }
1027
1028 static void
1029 msi_maskedit_create_children( struct msi_maskedit_info *info, LPCWSTR font )
1030 {
1031     DWORD width, height, style, wx, ww;
1032     RECT rect;
1033     HWND hwnd;
1034     UINT i;
1035
1036     style = WS_CHILD | WS_BORDER | WS_VISIBLE | WS_TABSTOP;
1037
1038     GetClientRect( info->hwnd, &rect );
1039
1040     width = rect.right - rect.left;
1041     height = rect.bottom - rect.top;
1042
1043     for( i = 0; i < info->num_groups; i++ )
1044     {
1045         wx = (info->group[i].ofs * width) / info->num_chars;
1046         ww = (info->group[i].len * width) / info->num_chars;
1047
1048         hwnd = CreateWindowW( szEdit, NULL, style, wx, 0, ww, height,
1049                               info->hwnd, NULL, NULL, NULL );
1050         if( !hwnd )
1051         {
1052             ERR("failed to create mask edit sub window\n");
1053             break;
1054         }
1055
1056         SendMessageW( hwnd, EM_LIMITTEXT, info->group[i].len, 0 );
1057
1058         msi_dialog_set_font( info->dialog, hwnd,
1059                              font?font:info->dialog->default_font );
1060         info->group[i].hwnd = hwnd;
1061     }
1062 }
1063
1064 /* office 2003 uses "73931<````=````=````=````=`````>@@@@@" */
1065 static UINT msi_dialog_maskedit_control( msi_dialog *dialog, MSIRECORD *rec )
1066 {
1067     LPWSTR font_mask, val = NULL, font;
1068     struct msi_maskedit_info *info = NULL;
1069     UINT ret = ERROR_SUCCESS;
1070     msi_control *control;
1071     LPCWSTR prop, mask;
1072
1073     TRACE("\n");
1074
1075     font_mask = msi_get_deformatted_field( dialog->package, rec, 10 );
1076     font = msi_dialog_get_style( font_mask, &mask );
1077     if( !mask )
1078     {
1079         ERR("mask template is empty\n");
1080         goto end;
1081     }
1082
1083     info = msi_dialog_parse_groups( mask );
1084     if( !info )
1085     {
1086         ERR("template %s is invalid\n", debugstr_w(mask));
1087         goto end;
1088     }
1089
1090     info->dialog = dialog;
1091
1092     control = msi_dialog_add_control( dialog, rec, szStatic,
1093                    SS_OWNERDRAW | WS_GROUP | WS_VISIBLE );
1094     if( !control )
1095     {
1096         ERR("Failed to create maskedit container\n");
1097         ret = ERROR_FUNCTION_FAILED;
1098         goto end;
1099     }
1100     SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_CONTROLPARENT );
1101
1102     info->hwnd = control->hwnd;
1103
1104     /* subclass the static control */
1105     info->oldproc = (WNDPROC) SetWindowLongPtrW( info->hwnd, GWLP_WNDPROC,
1106                                           (LONG_PTR)MSIMaskedEdit_WndProc );
1107     SetPropW( control->hwnd, szButtonData, info );
1108
1109     prop = MSI_RecordGetString( rec, 9 );
1110     if( prop )
1111         info->prop = strdupW( prop );
1112
1113     msi_maskedit_create_children( info, font );
1114
1115     if( prop )
1116     {
1117         val = msi_dup_property( dialog->package, prop );
1118         if( val )
1119         {
1120             msi_maskedit_set_text( info, val );
1121             msi_free( val );
1122         }
1123     }
1124
1125 end:
1126     if( ret != ERROR_SUCCESS )
1127         msi_free( info );
1128     msi_free( font_mask );
1129     msi_free( font );
1130     return ret;
1131 }
1132
1133 /******************** Path Edit ********************************************/
1134
1135 static UINT msi_dialog_pathedit_control( msi_dialog *dialog, MSIRECORD *rec )
1136 {
1137     FIXME("not implemented properly\n");
1138     return msi_dialog_edit_control( dialog, rec );
1139 }
1140
1141 /* radio buttons are a bit different from normal controls */
1142 static UINT msi_dialog_create_radiobutton( MSIRECORD *rec, LPVOID param )
1143 {
1144     radio_button_group_descr *group = (radio_button_group_descr *)param;
1145     msi_dialog *dialog = group->dialog;
1146     msi_control *control;
1147     LPCWSTR prop, text, name;
1148     DWORD style, attributes = group->attributes;
1149
1150     style = WS_CHILD | BS_AUTORADIOBUTTON | BS_MULTILINE | WS_TABSTOP;
1151     name = MSI_RecordGetString( rec, 3 );
1152     text = MSI_RecordGetString( rec, 8 );
1153     if( attributes & 1 )
1154         style |= WS_VISIBLE;
1155     if( ~attributes & 2 )
1156         style |= WS_DISABLED;
1157
1158     control = msi_dialog_create_window( dialog, rec, szButton, name, text,
1159                                         style, group->parent->hwnd );
1160     if (!control)
1161         return ERROR_FUNCTION_FAILED;
1162     control->handler = msi_dialog_radiogroup_handler;
1163
1164     prop = MSI_RecordGetString( rec, 1 );
1165     if( prop )
1166         control->property = strdupW( prop );
1167
1168     return ERROR_SUCCESS;
1169 }
1170
1171 static UINT msi_dialog_radiogroup_control( msi_dialog *dialog, MSIRECORD *rec )
1172 {
1173     static const WCHAR query[] = {
1174         'S','E','L','E','C','T',' ','*',' ',
1175         'F','R','O','M',' ','R','a','d','i','o','B','u','t','t','o','n',' ',
1176         'W','H','E','R','E',' ',
1177            '`','P','r','o','p','e','r','t','y','`',' ','=',' ','\'','%','s','\'',0};
1178     UINT r;
1179     LPCWSTR prop;
1180     msi_control *control;
1181     MSIQUERY *view = NULL;
1182     radio_button_group_descr group;
1183     MSIPACKAGE *package = dialog->package;
1184     WNDPROC oldproc;
1185
1186     prop = MSI_RecordGetString( rec, 9 );
1187
1188     TRACE("%p %p %s\n", dialog, rec, debugstr_w( prop ));
1189
1190     /* Create parent group box to hold radio buttons */
1191     control = msi_dialog_add_control( dialog, rec, szButton, BS_OWNERDRAW|WS_GROUP );
1192     if( !control )
1193         return ERROR_FUNCTION_FAILED;
1194
1195     oldproc = (WNDPROC) SetWindowLongPtrW( control->hwnd, GWLP_WNDPROC,
1196                                            (LONG_PTR)MSIRadioGroup_WndProc );
1197     SetPropW(control->hwnd, szButtonData, oldproc);
1198     SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_CONTROLPARENT );
1199
1200     if( prop )
1201         control->property = strdupW( prop );
1202
1203     /* query the Radio Button table for all control in this group */
1204     r = MSI_OpenQuery( package->db, &view, query, prop );
1205     if( r != ERROR_SUCCESS )
1206     {
1207         ERR("query failed for dialog %s radio group %s\n",
1208             debugstr_w(dialog->name), debugstr_w(prop));
1209         return ERROR_INVALID_PARAMETER;
1210     }
1211
1212     group.dialog = dialog;
1213     group.parent = control;
1214     group.attributes = MSI_RecordGetInteger( rec, 8 );
1215
1216     r = MSI_IterateRecords( view, 0, msi_dialog_create_radiobutton, &group );
1217     msiobj_release( &view->hdr );
1218
1219     return r;
1220 }
1221
1222 struct control_handler msi_dialog_handler[] =
1223 {
1224     { szText, msi_dialog_text_control },
1225     { szPushButton, msi_dialog_button_control },
1226     { szLine, msi_dialog_line_control },
1227     { szBitmap, msi_dialog_bitmap_control },
1228     { szCheckBox, msi_dialog_checkbox_control },
1229     { szScrollableText, msi_dialog_scrolltext_control },
1230     { szComboBox, msi_dialog_combo_control },
1231     { szEdit, msi_dialog_edit_control },
1232     { szMaskedEdit, msi_dialog_maskedit_control },
1233     { szPathEdit, msi_dialog_pathedit_control },
1234     { szRadioButtonGroup, msi_dialog_radiogroup_control },
1235     { szIcon, msi_dialog_icon_control },
1236 };
1237
1238 #define NUM_CONTROL_TYPES (sizeof msi_dialog_handler/sizeof msi_dialog_handler[0])
1239
1240 static UINT msi_dialog_create_controls( MSIRECORD *rec, LPVOID param )
1241 {
1242     msi_dialog *dialog = param;
1243     LPCWSTR control_type;
1244     UINT i;
1245
1246     /* find and call the function that can create this type of control */
1247     control_type = MSI_RecordGetString( rec, 3 );
1248     for( i=0; i<NUM_CONTROL_TYPES; i++ )
1249         if (!strcmpiW( msi_dialog_handler[i].control_type, control_type ))
1250             break;
1251     if( i != NUM_CONTROL_TYPES )
1252         msi_dialog_handler[i].func( dialog, rec );
1253     else
1254         ERR("no handler for element type %s\n", debugstr_w(control_type));
1255
1256     return ERROR_SUCCESS;
1257 }
1258
1259 static UINT msi_dialog_fill_controls( msi_dialog *dialog )
1260 {
1261     static const WCHAR query[] = {
1262         'S','E','L','E','C','T',' ','*',' ',
1263         'F','R','O','M',' ','C','o','n','t','r','o','l',' ',
1264         'W','H','E','R','E',' ',
1265            '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0};
1266     UINT r;
1267     MSIQUERY *view = NULL;
1268     MSIPACKAGE *package = dialog->package;
1269
1270     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1271
1272     /* query the Control table for all the elements of the control */
1273     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
1274     if( r != ERROR_SUCCESS )
1275     {
1276         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1277         return ERROR_INVALID_PARAMETER;
1278     }
1279
1280     r = MSI_IterateRecords( view, 0, msi_dialog_create_controls, dialog );
1281     msiobj_release( &view->hdr );
1282
1283     return r;
1284 }
1285
1286 static UINT msi_dialog_set_control_condition( MSIRECORD *rec, LPVOID param )
1287 {
1288     static const WCHAR szHide[] = { 'H','i','d','e',0 };
1289     static const WCHAR szShow[] = { 'S','h','o','w',0 };
1290     static const WCHAR szDisable[] = { 'D','i','s','a','b','l','e',0 };
1291     static const WCHAR szEnable[] = { 'E','n','a','b','l','e',0 };
1292     msi_dialog *dialog = param;
1293     msi_control *control;
1294     LPCWSTR name, action, condition;
1295     UINT r;
1296
1297     name = MSI_RecordGetString( rec, 2 );
1298     action = MSI_RecordGetString( rec, 3 );
1299     condition = MSI_RecordGetString( rec, 4 );
1300     r = MSI_EvaluateConditionW( dialog->package, condition );
1301     control = msi_dialog_find_control( dialog, name );
1302     if( r && control )
1303     {
1304         TRACE("%s control %s\n", debugstr_w(action), debugstr_w(name));
1305
1306         /* FIXME: case sensitive? */
1307         if(!lstrcmpW(action, szHide))
1308             ShowWindow(control->hwnd, SW_HIDE);
1309         else if(!strcmpW(action, szShow))
1310             ShowWindow(control->hwnd, SW_SHOW);
1311         else if(!strcmpW(action, szDisable))
1312             EnableWindow(control->hwnd, FALSE);
1313         else if(!strcmpW(action, szEnable))
1314             EnableWindow(control->hwnd, TRUE);
1315         else
1316             FIXME("Unhandled action %s\n", debugstr_w(action));
1317     }
1318
1319     return ERROR_SUCCESS;
1320 }
1321
1322 static UINT msi_dialog_evaluate_control_conditions( msi_dialog *dialog )
1323 {
1324     static const WCHAR query[] = {
1325       'S','E','L','E','C','T',' ','*',' ',
1326       'F','R','O','M',' ',
1327         'C','o','n','t','r','o','l','C','o','n','d','i','t','i','o','n',' ',
1328       'W','H','E','R','E',' ',
1329         '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0
1330     };
1331     UINT r;
1332     MSIQUERY *view = NULL;
1333     MSIPACKAGE *package = dialog->package;
1334
1335     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1336
1337     /* query the Control table for all the elements of the control */
1338     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
1339     if( r != ERROR_SUCCESS )
1340     {
1341         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1342         return ERROR_INVALID_PARAMETER;
1343     }
1344
1345     r = MSI_IterateRecords( view, 0, msi_dialog_set_control_condition, dialog );
1346     msiobj_release( &view->hdr );
1347
1348     return r;
1349 }
1350
1351 /* figure out the height of 10 point MS Sans Serif */
1352 static INT msi_dialog_get_sans_serif_height( HWND hwnd )
1353 {
1354     static const WCHAR szSansSerif[] = {
1355         'M','S',' ','S','a','n','s',' ','S','e','r','i','f',0 };
1356     LOGFONTW lf;
1357     TEXTMETRICW tm;
1358     BOOL r;
1359     LONG height = 0;
1360     HFONT hFont, hOldFont;
1361     HDC hdc;
1362
1363     hdc = GetDC( hwnd );
1364     if (hdc)
1365     {
1366         memset( &lf, 0, sizeof lf );
1367         lf.lfHeight = MulDiv(10, GetDeviceCaps(hdc, LOGPIXELSY), 72);
1368         strcpyW( lf.lfFaceName, szSansSerif );
1369         hFont = CreateFontIndirectW(&lf);
1370         if (hFont)
1371         {
1372             hOldFont = SelectObject( hdc, hFont );
1373             r = GetTextMetricsW( hdc, &tm );
1374             if (r)
1375                 height = tm.tmHeight;
1376             SelectObject( hdc, hOldFont );
1377             DeleteObject( hFont );
1378         }
1379         ReleaseDC( hwnd, hdc );
1380     }
1381     return height;
1382 }
1383
1384 /* fetch the associated record from the Dialog table */
1385 static MSIRECORD *msi_get_dialog_record( msi_dialog *dialog )
1386 {
1387     static const WCHAR query[] = {
1388         'S','E','L','E','C','T',' ','*',' ',
1389         'F','R','O','M',' ','D','i','a','l','o','g',' ',
1390         'W','H','E','R','E',' ',
1391            '`','D','i','a','l','o','g','`',' ','=',' ','\'','%','s','\'',0};
1392     MSIPACKAGE *package = dialog->package;
1393     MSIRECORD *rec = NULL;
1394
1395     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1396
1397     rec = MSI_QueryGetRecord( package->db, query, dialog->name );
1398     if( !rec )
1399         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1400
1401     return rec;
1402 }
1403
1404 static void msi_dialog_adjust_dialog_size( msi_dialog *dialog, LPSIZE sz )
1405 {
1406     RECT rect;
1407     LONG style;
1408
1409     /* turn the client size into the window rectangle */
1410     rect.left = 0;
1411     rect.top = 0;
1412     rect.right = msi_dialog_scale_unit( dialog, sz->cx );
1413     rect.bottom = msi_dialog_scale_unit( dialog, sz->cy );
1414     style = GetWindowLongPtrW( dialog->hwnd, GWL_STYLE );
1415     AdjustWindowRect( &rect, style, FALSE );
1416     sz->cx = rect.right - rect.left;
1417     sz->cy = rect.bottom - rect.top;
1418 }
1419
1420 static BOOL msi_control_set_next( msi_control *control, msi_control *next )
1421 {
1422     return SetWindowPos( next->hwnd, control->hwnd, 0, 0, 0, 0,
1423                          SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOREDRAW |
1424                          SWP_NOREPOSITION | SWP_NOSENDCHANGING | SWP_NOSIZE );
1425 }
1426
1427 static UINT msi_dialog_set_tab_order( msi_dialog *dialog )
1428 {
1429     msi_control *control, *tab_next;
1430
1431     LIST_FOR_EACH_ENTRY( control, &dialog->controls, msi_control, entry )
1432     {
1433         tab_next = msi_dialog_find_control( dialog, control->tabnext );
1434         if( !tab_next )
1435             continue;
1436         msi_control_set_next( control, tab_next );
1437     }
1438
1439     return ERROR_SUCCESS;
1440 }
1441
1442 static void msi_dialog_set_first_control( msi_dialog* dialog, LPCWSTR name )
1443 {
1444     msi_control *control;
1445
1446     control = msi_dialog_find_control( dialog, name );
1447     if( control )
1448         dialog->hWndFocus = control->hwnd;
1449     else
1450         dialog->hWndFocus = NULL;
1451 }
1452
1453 static LRESULT msi_dialog_oncreate( HWND hwnd, LPCREATESTRUCTW cs )
1454 {
1455     static const WCHAR df[] = {
1456         'D','e','f','a','u','l','t','U','I','F','o','n','t',0 };
1457     msi_dialog *dialog = (msi_dialog*) cs->lpCreateParams;
1458     MSIRECORD *rec = NULL;
1459     LPWSTR title = NULL;
1460     SIZE size;
1461
1462     TRACE("%p %p\n", dialog, dialog->package);
1463
1464     dialog->hwnd = hwnd;
1465     SetWindowLongPtrW( hwnd, GWLP_USERDATA, (LONG_PTR) dialog );
1466
1467     rec = msi_get_dialog_record( dialog );
1468     if( !rec )
1469     {
1470         TRACE("No record found for dialog %s\n", debugstr_w(dialog->name));
1471         return -1;
1472     }
1473
1474     dialog->scale = msi_dialog_get_sans_serif_height(dialog->hwnd);
1475
1476     size.cx = MSI_RecordGetInteger( rec, 4 );
1477     size.cy = MSI_RecordGetInteger( rec, 5 );
1478     msi_dialog_adjust_dialog_size( dialog, &size );
1479
1480     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
1481
1482     dialog->default_font = msi_dup_property( dialog->package, df );
1483
1484     title = msi_get_deformatted_field( dialog->package, rec, 7 );
1485     SetWindowTextW( hwnd, title );
1486     msi_free( title );
1487
1488     SetWindowPos( hwnd, 0, 0, 0, size.cx, size.cy,
1489                   SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW );
1490
1491
1492     msi_dialog_build_font_list( dialog );
1493     msi_dialog_fill_controls( dialog );
1494     msi_dialog_evaluate_control_conditions( dialog );
1495     msi_dialog_set_tab_order( dialog );
1496     msi_dialog_set_first_control( dialog, MSI_RecordGetString( rec, 8 ) );
1497     msiobj_release( &rec->hdr );
1498
1499     return 0;
1500 }
1501
1502 static UINT msi_dialog_send_event( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
1503 {
1504     LPWSTR event_fmt = NULL, arg_fmt = NULL;
1505
1506     TRACE("Sending control event %s %s\n", debugstr_w(event), debugstr_w(arg));
1507
1508     deformat_string( dialog->package, event, &event_fmt );
1509     deformat_string( dialog->package, arg, &arg_fmt );
1510
1511     dialog->event_handler( dialog->package, event_fmt, arg_fmt, dialog );
1512
1513     msi_free( event_fmt );
1514     msi_free( arg_fmt );
1515
1516     return ERROR_SUCCESS;
1517 }
1518
1519 static UINT msi_dialog_set_property( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
1520 {
1521     static const WCHAR szNullArg[] = { '{','}',0 };
1522     LPWSTR p, prop, arg_fmt = NULL;
1523     UINT len;
1524
1525     len = strlenW(event);
1526     prop = msi_alloc( len*sizeof(WCHAR));
1527     strcpyW( prop, &event[1] );
1528     p = strchrW( prop, ']' );
1529     if( p && p[1] == 0 )
1530     {
1531         *p = 0;
1532         if( strcmpW( szNullArg, arg ) )
1533             deformat_string( dialog->package, arg, &arg_fmt );
1534         MSI_SetPropertyW( dialog->package, prop, arg_fmt );
1535         msi_free( arg_fmt );
1536     }
1537     else
1538         ERR("Badly formatted property string - what happens?\n");
1539     msi_free( prop );
1540     return ERROR_SUCCESS;
1541 }
1542
1543 static UINT msi_dialog_control_event( MSIRECORD *rec, LPVOID param )
1544 {
1545     msi_dialog *dialog = param;
1546     LPCWSTR condition, event, arg;
1547     UINT r;
1548
1549     condition = MSI_RecordGetString( rec, 5 );
1550     r = MSI_EvaluateConditionW( dialog->package, condition );
1551     if( r )
1552     {
1553         event = MSI_RecordGetString( rec, 3 );
1554         arg = MSI_RecordGetString( rec, 4 );
1555         if( event[0] == '[' )
1556             msi_dialog_set_property( dialog, event, arg );
1557         else
1558             msi_dialog_send_event( dialog, event, arg );
1559     }
1560
1561     return ERROR_SUCCESS;
1562 }
1563
1564 static UINT msi_dialog_button_handler( msi_dialog *dialog,
1565                                        msi_control *control, WPARAM param )
1566 {
1567     static const WCHAR query[] = {
1568       'S','E','L','E','C','T',' ','*',' ',
1569       'F','R','O','M',' ','C','o','n','t','r','o','l','E','v','e','n','t',' ',
1570       'W','H','E','R','E',' ',
1571          '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',' ',
1572       'A','N','D',' ',
1573          '`','C','o','n','t','r','o','l','_','`',' ','=',' ','\'','%','s','\'',' ',
1574       'O','R','D','E','R',' ','B','Y',' ','`','O','r','d','e','r','i','n','g','`',0
1575     };
1576     MSIQUERY *view = NULL;
1577     UINT r;
1578
1579     if( HIWORD(param) != BN_CLICKED )
1580         return ERROR_SUCCESS;
1581
1582     r = MSI_OpenQuery( dialog->package->db, &view, query,
1583                        dialog->name, control->name );
1584     if( r != ERROR_SUCCESS )
1585     {
1586         ERR("query failed\n");
1587         return 0;
1588     }
1589
1590     r = MSI_IterateRecords( view, 0, msi_dialog_control_event, dialog );
1591     msiobj_release( &view->hdr );
1592
1593     return r;
1594 }
1595
1596 static UINT msi_dialog_get_checkbox_state( msi_dialog *dialog,
1597                 msi_control *control )
1598 {
1599     WCHAR state[2] = { 0 };
1600     DWORD sz = 2;
1601
1602     MSI_GetPropertyW( dialog->package, control->property, state, &sz );
1603     return state[0] ? 1 : 0;
1604 }
1605
1606 static void msi_dialog_set_checkbox_state( msi_dialog *dialog,
1607                 msi_control *control, UINT state )
1608 {
1609     static const WCHAR szState[] = { '1', 0 };
1610     LPCWSTR val;
1611
1612     /* if uncheck then the property is set to NULL */
1613     if (!state)
1614     {
1615         MSI_SetPropertyW( dialog->package, control->property, NULL );
1616         return;
1617     }
1618
1619     /* check for a custom state */
1620     if (control->value && control->value[0])
1621         val = control->value;
1622     else
1623         val = szState;
1624
1625     MSI_SetPropertyW( dialog->package, control->property, val );
1626 }
1627
1628 static void msi_dialog_checkbox_sync_state( msi_dialog *dialog,
1629                 msi_control *control )
1630 {
1631     UINT state;
1632
1633     state = msi_dialog_get_checkbox_state( dialog, control );
1634     SendMessageW( control->hwnd, BM_SETCHECK,
1635                   state ? BST_CHECKED : BST_UNCHECKED, 0 );
1636 }
1637
1638 static UINT msi_dialog_checkbox_handler( msi_dialog *dialog,
1639                 msi_control *control, WPARAM param )
1640 {
1641     UINT state;
1642
1643     if( HIWORD(param) != BN_CLICKED )
1644         return ERROR_SUCCESS;
1645
1646     TRACE("clicked checkbox %s, set %s\n", debugstr_w(control->name),
1647           debugstr_w(control->property));
1648
1649     state = msi_dialog_get_checkbox_state( dialog, control );
1650     state = state ? 0 : 1;
1651     msi_dialog_set_checkbox_state( dialog, control, state );
1652     msi_dialog_checkbox_sync_state( dialog, control );
1653
1654     return msi_dialog_button_handler( dialog, control, param );
1655 }
1656
1657 static UINT msi_dialog_edit_handler( msi_dialog *dialog,
1658                 msi_control *control, WPARAM param )
1659 {
1660     UINT sz, r;
1661     LPWSTR buf;
1662
1663     if( HIWORD(param) != EN_CHANGE )
1664         return ERROR_SUCCESS;
1665
1666     TRACE("edit %s contents changed, set %s\n", debugstr_w(control->name),
1667           debugstr_w(control->property));
1668
1669     sz = 0x20;
1670     buf = msi_alloc( sz*sizeof(WCHAR) );
1671     while( buf )
1672     {
1673         r = GetWindowTextW( control->hwnd, buf, sz );
1674         if( r < (sz-1) )
1675             break;
1676         sz *= 2;
1677         buf = msi_realloc( buf, sz*sizeof(WCHAR) );
1678     }
1679
1680     MSI_SetPropertyW( dialog->package, control->property, buf );
1681
1682     msi_free( buf );
1683
1684     return ERROR_SUCCESS;
1685 }
1686
1687 static UINT msi_dialog_radiogroup_handler( msi_dialog *dialog,
1688                 msi_control *control, WPARAM param )
1689 {
1690     if( HIWORD(param) != BN_CLICKED )
1691         return ERROR_SUCCESS;
1692
1693     TRACE("clicked radio button %s, set %s\n", debugstr_w(control->name),
1694           debugstr_w(control->property));
1695
1696     MSI_SetPropertyW( dialog->package, control->property, control->name );
1697
1698     return msi_dialog_button_handler( dialog, control, param );
1699 }
1700
1701 static LRESULT msi_dialog_oncommand( msi_dialog *dialog, WPARAM param, HWND hwnd )
1702 {
1703     msi_control *control;
1704
1705     TRACE("%p %p %08x\n", dialog, hwnd, param);
1706
1707     control = msi_dialog_find_control_by_hwnd( dialog, hwnd );
1708     if( control )
1709     {
1710         if( control->handler )
1711         {
1712             control->handler( dialog, control, param );
1713             msi_dialog_evaluate_control_conditions( dialog );
1714         }
1715     }
1716     else
1717         ERR("button click from nowhere\n");
1718     return 0;
1719 }
1720
1721 static void msi_dialog_setfocus( msi_dialog *dialog )
1722 {
1723     HWND hwnd = dialog->hWndFocus;
1724
1725     hwnd = GetNextDlgTabItem( dialog->hwnd, hwnd, TRUE);
1726     hwnd = GetNextDlgTabItem( dialog->hwnd, hwnd, FALSE);
1727     SetFocus( hwnd );
1728     dialog->hWndFocus = hwnd;
1729 }
1730
1731 static LRESULT WINAPI MSIDialog_WndProc( HWND hwnd, UINT msg,
1732                 WPARAM wParam, LPARAM lParam )
1733 {
1734     msi_dialog *dialog = (LPVOID) GetWindowLongPtrW( hwnd, GWLP_USERDATA );
1735
1736     TRACE("0x%04x\n", msg);
1737
1738     switch (msg)
1739     {
1740     case WM_CREATE:
1741         return msi_dialog_oncreate( hwnd, (LPCREATESTRUCTW)lParam );
1742
1743     case WM_COMMAND:
1744         return msi_dialog_oncommand( dialog, wParam, (HWND)lParam );
1745
1746     case WM_ACTIVATE:
1747         if( LOWORD(wParam) == WA_INACTIVE )
1748             dialog->hWndFocus = GetFocus();
1749         else
1750             msi_dialog_setfocus( dialog );
1751         return 0;
1752
1753     case WM_SETFOCUS:
1754         msi_dialog_setfocus( dialog );
1755         return 0;
1756
1757     /* bounce back to our subclassed static control */
1758     case WM_CTLCOLORSTATIC:
1759         return SendMessageW( (HWND) lParam, WM_CTLCOLORSTATIC, wParam, lParam );
1760
1761     case WM_DESTROY:
1762         dialog->hwnd = NULL;
1763         return 0;
1764     }
1765     return DefWindowProcW(hwnd, msg, wParam, lParam);
1766 }
1767
1768 static LRESULT WINAPI MSIRadioGroup_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1769 {
1770     WNDPROC oldproc = (WNDPROC) GetPropW(hWnd, szButtonData);
1771
1772     TRACE("hWnd %p msg %04x wParam 0x%08x lParam 0x%08lx\n", hWnd, msg, wParam, lParam);
1773
1774     if (msg == WM_COMMAND) /* Forward notifications to dialog */
1775         SendMessageW(GetParent(hWnd), msg, wParam, lParam);
1776
1777     return CallWindowProcW(oldproc, hWnd, msg, wParam, lParam);
1778 }
1779
1780 static LRESULT WINAPI MSIHiddenWindowProc( HWND hwnd, UINT msg,
1781                 WPARAM wParam, LPARAM lParam )
1782 {
1783     msi_dialog *dialog = (msi_dialog*) lParam;
1784
1785     TRACE("%d %p\n", msg, dialog);
1786
1787     switch (msg)
1788     {
1789     case WM_MSI_DIALOG_CREATE:
1790         return msi_dialog_run_message_loop( dialog );
1791     case WM_MSI_DIALOG_DESTROY:
1792         msi_dialog_destroy( dialog );
1793         return 0;
1794     }
1795     return DefWindowProcW( hwnd, msg, wParam, lParam );
1796 }
1797
1798 /* functions that interface to other modules within MSI */
1799
1800 msi_dialog *msi_dialog_create( MSIPACKAGE* package, LPCWSTR szDialogName,
1801                                 msi_dialog_event_handler event_handler )
1802 {
1803     MSIRECORD *rec = NULL;
1804     msi_dialog *dialog;
1805
1806     TRACE("%p %s\n", package, debugstr_w(szDialogName));
1807
1808     /* allocate the structure for the dialog to use */
1809     dialog = msi_alloc_zero( sizeof *dialog + sizeof(WCHAR)*strlenW(szDialogName) );
1810     if( !dialog )
1811         return NULL;
1812     strcpyW( dialog->name, szDialogName );
1813     msiobj_addref( &package->hdr );
1814     dialog->package = package;
1815     dialog->event_handler = event_handler;
1816     dialog->finished = 0;
1817     list_init( &dialog->controls );
1818
1819     /* verify that the dialog exists */
1820     rec = msi_get_dialog_record( dialog );
1821     if( !rec )
1822     {
1823         msiobj_release( &package->hdr );
1824         msi_free( dialog );
1825         return NULL;
1826     }
1827     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
1828     msiobj_release( &rec->hdr );
1829
1830     return dialog;
1831 }
1832
1833 static void msi_process_pending_messages( HWND hdlg )
1834 {
1835     MSG msg;
1836
1837     while( PeekMessageW( &msg, 0, 0, 0, PM_REMOVE ) )
1838     {
1839         if( hdlg && IsDialogMessageW( hdlg, &msg ))
1840             continue;
1841         TranslateMessage( &msg );
1842         DispatchMessageW( &msg );
1843     }
1844 }
1845
1846 void msi_dialog_end_dialog( msi_dialog *dialog )
1847 {
1848     TRACE("%p\n", dialog);
1849     dialog->finished = 1;
1850     PostMessageW(dialog->hwnd, WM_NULL, 0, 0);
1851 }
1852
1853 void msi_dialog_check_messages( HANDLE handle )
1854 {
1855     DWORD r;
1856
1857     /* in threads other than the UI thread, block */
1858     if( uiThreadId != GetCurrentThreadId() )
1859     {
1860         if( handle )
1861             WaitForSingleObject( handle, INFINITE );
1862         return;
1863     }
1864
1865     /* there's two choices for the UI thread */
1866     while (1)
1867     {
1868         msi_process_pending_messages( NULL );
1869
1870         if( !handle )
1871             break;
1872
1873         /*
1874          * block here until somebody creates a new dialog or
1875          * the handle we're waiting on becomes ready
1876          */
1877         r = MsgWaitForMultipleObjects( 1, &handle, 0, INFINITE, QS_ALLINPUT );
1878         if( r == WAIT_OBJECT_0 )
1879             break;
1880     }
1881 }
1882
1883 UINT msi_dialog_run_message_loop( msi_dialog *dialog )
1884 {
1885     HWND hwnd;
1886
1887     if( !(dialog->attributes & msidbDialogAttributesVisible) )
1888         return ERROR_SUCCESS;
1889
1890     if( uiThreadId != GetCurrentThreadId() )
1891         return SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_CREATE, 0, (LPARAM) dialog );
1892
1893     /* create the dialog window, don't show it yet */
1894     hwnd = CreateWindowW( szMsiDialogClass, dialog->name, WS_OVERLAPPEDWINDOW,
1895                      CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
1896                      NULL, NULL, NULL, dialog );
1897     if( !hwnd )
1898     {
1899         ERR("Failed to create dialog %s\n", debugstr_w( dialog->name ));
1900         return ERROR_FUNCTION_FAILED;
1901     }
1902
1903     ShowWindow( hwnd, SW_SHOW );
1904     UpdateWindow( hwnd );
1905
1906     if( dialog->attributes & msidbDialogAttributesModal )
1907     {
1908         while( !dialog->finished )
1909         {
1910             MsgWaitForMultipleObjects( 0, NULL, 0, INFINITE, QS_ALLEVENTS );
1911             msi_process_pending_messages( dialog->hwnd );
1912         }
1913     }
1914     else
1915         return ERROR_IO_PENDING;
1916
1917     return ERROR_SUCCESS;
1918 }
1919
1920 void msi_dialog_do_preview( msi_dialog *dialog )
1921 {
1922     TRACE("\n");
1923     dialog->attributes |= msidbDialogAttributesVisible;
1924     dialog->attributes &= ~msidbDialogAttributesModal;
1925     msi_dialog_run_message_loop( dialog );
1926 }
1927
1928 void msi_dialog_destroy( msi_dialog *dialog )
1929 {
1930     if( uiThreadId != GetCurrentThreadId() )
1931     {
1932         SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_DESTROY, 0, (LPARAM) dialog );
1933         return;
1934     }
1935
1936     if( dialog->hwnd )
1937         ShowWindow( dialog->hwnd, SW_HIDE );
1938
1939     if( dialog->hwnd )
1940         DestroyWindow( dialog->hwnd );
1941
1942     /* destroy the list of controls */
1943     while( !list_empty( &dialog->controls ) )
1944     {
1945         msi_control *t = LIST_ENTRY( list_head( &dialog->controls ),
1946                                      msi_control, entry );
1947         list_remove( &t->entry );
1948         /* leave dialog->hwnd - destroying parent destroys child windows */
1949         msi_free( t->property );
1950         msi_free( t->value );
1951         if( t->hBitmap )
1952             DeleteObject( t->hBitmap );
1953         if( t->hIcon )
1954             DestroyIcon( t->hIcon );
1955         msi_free( t->tabnext );
1956         msi_free( t );
1957         if (t->hDll)
1958             FreeLibrary( t->hDll );
1959     }
1960
1961     /* destroy the list of fonts */
1962     while( dialog->font_list )
1963     {
1964         msi_font *t = dialog->font_list;
1965         dialog->font_list = t->next;
1966         DeleteObject( t->hfont );
1967         msi_free( t );
1968     }
1969     msi_free( dialog->default_font );
1970
1971     msiobj_release( &dialog->package->hdr );
1972     dialog->package = NULL;
1973     msi_free( dialog );
1974 }
1975
1976 BOOL msi_dialog_register_class( void )
1977 {
1978     WNDCLASSW cls;
1979
1980     ZeroMemory( &cls, sizeof cls );
1981     cls.lpfnWndProc   = MSIDialog_WndProc;
1982     cls.hInstance     = NULL;
1983     cls.hIcon         = LoadIconW(0, (LPWSTR)IDI_APPLICATION);
1984     cls.hCursor       = LoadCursorW(0, (LPWSTR)IDC_ARROW);
1985     cls.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
1986     cls.lpszMenuName  = NULL;
1987     cls.lpszClassName = szMsiDialogClass;
1988
1989     if( !RegisterClassW( &cls ) )
1990         return FALSE;
1991
1992     cls.lpfnWndProc   = MSIHiddenWindowProc;
1993     cls.lpszClassName = szMsiHiddenWindow;
1994
1995     if( !RegisterClassW( &cls ) )
1996         return FALSE;
1997
1998     uiThreadId = GetCurrentThreadId();
1999
2000     hMsiHiddenWindow = CreateWindowW( szMsiHiddenWindow, NULL, WS_OVERLAPPED,
2001                                    0, 0, 100, 100, NULL, NULL, NULL, NULL );
2002     if( !hMsiHiddenWindow )
2003         return FALSE;
2004
2005     return TRUE;
2006 }
2007
2008 void msi_dialog_unregister_class( void )
2009 {
2010     DestroyWindow( hMsiHiddenWindow );
2011     UnregisterClassW( szMsiDialogClass, NULL );
2012     uiThreadId = 0;
2013 }