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             return control;
 153     return NULL;
 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             return control;
 163     return NULL;
 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 == '\\' || *p == '&' )
 197         p++;
 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     LPWSTR ret = NULL;
 629
 630     /* find if there is a value associated with the checkbox */
 631     rec = MSI_QueryGetRecord( dialog->package->db, query, prop );
 632     if (!rec)
 633         return ret;
 634
 635     ret = msi_get_deformatted_field( dialog->package, rec, 2 );
 636     if( ret && !ret[0] )
 637     {
 638         msi_free( ret );
 639         ret = NULL;
 640     }
 641     msiobj_release( &rec->hdr );
 642     if (ret)
 643         return ret;
 644
 645     ret = msi_dup_property( dialog->package, prop );
 646     if( ret && !ret[0] )
 647     {
 648         msi_free( ret );
 649         ret = NULL;
 650     }
 651
 652     return ret;
 653 }
 654
 655 static UINT msi_dialog_checkbox_control( msi_dialog *dialog, MSIRECORD *rec )
 656 {
 657     msi_control *control;
 658     LPCWSTR prop;
 659
 660     TRACE("%p %p\n", dialog, rec);
 661
 662     control = msi_dialog_add_control( dialog, rec, szButton,
 663                                 BS_CHECKBOX | BS_MULTILINE | WS_TABSTOP );
 664     control->handler = msi_dialog_checkbox_handler;
 665     prop = MSI_RecordGetString( rec, 9 );
 666     if( prop )
 667     {
 668         control->property = strdupW( prop );
 669         control->value = msi_get_checkbox_value( dialog, prop );
 670         TRACE("control %s value %s\n", debugstr_w(control->property),
 671               debugstr_w(control->value));
 672     }
 673     msi_dialog_checkbox_sync_state( dialog, control );
 674
 675     return ERROR_SUCCESS;
 676 }
 677
 678 static UINT msi_dialog_line_control( msi_dialog *dialog, MSIRECORD *rec )
 679 {
 680     TRACE("%p %p\n", dialog, rec);
 681
 682     msi_dialog_add_control( dialog, rec, szStatic, SS_ETCHEDHORZ | SS_SUNKEN );
 683     return ERROR_SUCCESS;
 684 }
 685
 686 struct msi_streamin_info
 687 {
 688     LPSTR string;
 689     DWORD offset;
 690     DWORD length;
 691 };
 692
 693 static DWORD CALLBACK
 694 msi_richedit_stream_in( DWORD_PTR arg, LPBYTE buffer, LONG count, LONG *pcb )
 695 {
 696     struct msi_streamin_info *info = (struct msi_streamin_info*) arg;
 697
 698     if( (count + info->offset) > info->length )
 699         count = info->length - info->offset;
 700     memcpy( buffer, &info->string[ info->offset ], count );
 701     *pcb = count;
 702     info->offset += count;
 703
 704     TRACE("%ld/%ld\n", info->offset, info->length);
 705
 706     return 0;
 707 }
 708
 709 static UINT msi_dialog_scrolltext_control( msi_dialog *dialog, MSIRECORD *rec )
 710 {
 711     const static WCHAR szRichEdit20W[] = {
 712         'R','i','c','h','E','d','i','t','2','0','W',0
 713     };
 714     struct msi_streamin_info info;
 715     msi_control *control;
 716     LPCWSTR text;
 717     EDITSTREAM es;
 718     DWORD style;
 719     HMODULE hRichedit;
 720
 721     hRichedit = LoadLibraryA("riched20");
 722
 723     style = WS_BORDER | ES_MULTILINE | WS_VSCROLL |
 724             ES_READONLY | ES_AUTOVSCROLL | WS_TABSTOP;
 725     control = msi_dialog_add_control( dialog, rec, szRichEdit20W, style );
 726     if (!control)
 727         return ERROR_FUNCTION_FAILED;
 728
 729     control->hDll = hRichedit;
 730
 731     text = MSI_RecordGetString( rec, 10 );
 732     info.string = strdupWtoA( text );
 733     info.offset = 0;
 734     info.length = lstrlenA( info.string ) + 1;
 735
 736     es.dwCookie = (DWORD_PTR) &info;
 737     es.dwError = 0;
 738     es.pfnCallback = msi_richedit_stream_in;
 739
 740     SendMessageW( control->hwnd, EM_STREAMIN, SF_RTF, (LPARAM) &es );
 741
 742     msi_free( info.string );
 743
 744     return ERROR_SUCCESS;
 745 }
 746
 747 static UINT msi_dialog_bitmap_control( msi_dialog *dialog, MSIRECORD *rec )
 748 {
 749     UINT cx, cy, flags, style, attributes;
 750     msi_control *control;
 751     LPWSTR text;
 752
 753     flags = LR_LOADFROMFILE;
 754     style = SS_BITMAP | SS_LEFT | WS_GROUP;
 755
 756     attributes = MSI_RecordGetInteger( rec, 8 );
 757     if( attributes & msidbControlAttributesFixedSize )
 758     {
 759         flags |= LR_DEFAULTSIZE;
 760         style |= SS_CENTERIMAGE;
 761     }
 762
 763     control = msi_dialog_add_control( dialog, rec, szStatic, style );
 764     cx = MSI_RecordGetInteger( rec, 6 );
 765     cy = MSI_RecordGetInteger( rec, 7 );
 766     cx = msi_dialog_scale_unit( dialog, cx );
 767     cy = msi_dialog_scale_unit( dialog, cy );
 768
 769     text = msi_get_deformatted_field( dialog->package, rec, 10 );
 770     control->hBitmap = msi_load_image( dialog->package->db, text,
 771                                        IMAGE_BITMAP, cx, cy, flags );
 772     if( control->hBitmap )
 773         SendMessageW( control->hwnd, STM_SETIMAGE,
 774                       IMAGE_BITMAP, (LPARAM) control->hBitmap );
 775     else
 776         ERR("Failed to load bitmap %s\n", debugstr_w(text));
 777
 778     msi_free( text );
 779
 780     return ERROR_SUCCESS;
 781 }
 782
 783 static UINT msi_dialog_icon_control( msi_dialog *dialog, MSIRECORD *rec )
 784 {
 785     msi_control *control;
 786     DWORD attributes;
 787     LPWSTR text;
 788
 789     TRACE("\n");
 790
 791     control = msi_dialog_add_control( dialog, rec, szStatic,
 792                             SS_ICON | SS_CENTERIMAGE | WS_GROUP );
 793
 794     attributes = MSI_RecordGetInteger( rec, 8 );
 795     text = msi_get_deformatted_field( dialog->package, rec, 10 );
 796     control->hIcon = msi_load_icon( dialog->package->db, text, attributes );
 797     if( control->hIcon )
 798         SendMessageW( control->hwnd, STM_SETICON, (WPARAM) control->hIcon, 0 );
 799     else
 800         ERR("Failed to load bitmap %s\n", debugstr_w(text));
 801     msi_free( text );
 802     return ERROR_SUCCESS;
 803 }
 804
 805 static UINT msi_dialog_combo_control( msi_dialog *dialog, MSIRECORD *rec )
 806 {
 807     static const WCHAR szCombo[] = { 'C','O','M','B','O','B','O','X',0 };
 808
 809     msi_dialog_add_control( dialog, rec, szCombo,
 810                             SS_BITMAP | SS_LEFT | SS_CENTERIMAGE );
 811     return ERROR_SUCCESS;
 812 }
 813
 814 static UINT msi_dialog_edit_control( msi_dialog *dialog, MSIRECORD *rec )
 815 {
 816     msi_control *control;
 817     LPCWSTR prop;
 818     LPWSTR val;
 819
 820     control = msi_dialog_add_control( dialog, rec, szEdit,
 821                                       WS_BORDER | WS_TABSTOP );
 822     control->handler = msi_dialog_edit_handler;
 823     prop = MSI_RecordGetString( rec, 9 );
 824     if( prop )
 825         control->property = strdupW( prop );
 826     val = msi_dup_property( dialog->package, control->property );
 827     SetWindowTextW( control->hwnd, val );
 828     msi_free( val );
 829     return ERROR_SUCCESS;
 830 }
 831
 832 /******************** Masked Edit ********************************************/
 833
 834 #define MASK_MAX_GROUPS 10
 835
 836 struct msi_mask_group
 837 {
 838     UINT len;
 839     UINT ofs;
 840     WCHAR type;
 841     HWND hwnd;
 842 };
 843
 844 struct msi_maskedit_info
 845 {
 846     msi_dialog *dialog;
 847     WNDPROC oldproc;
 848     HWND hwnd;
 849     LPWSTR prop;
 850     UINT num_chars;
 851     UINT num_groups;
 852     struct msi_mask_group group[MASK_MAX_GROUPS];
 853 };
 854
 855 static void msi_mask_control_change( struct msi_maskedit_info *info )
 856 {
 857     LPWSTR val;
 858     UINT i, n, r;
 859
 860     val = msi_alloc( (info->num_chars+1)*sizeof(WCHAR) );
 861     for( i=0, n=0; i<info->num_groups; i++ )
 862     {
 863         if( (info->group[i].len + n) > info->num_chars )
 864         {
 865             ERR("can't fit control %d text into template\n",i);
 866             break;
 867         }
 868         r = GetWindowTextW( info->group[i].hwnd, &val[n], info->group[i].len+1 );
 869         if( r != info->group[i].len )
 870             break;
 871         n += r;
 872     }
 873
 874     TRACE("%d/%d controls were good\n", i, info->num_groups);
 875
 876     if( i == info->num_groups )
 877     {
 878         TRACE("Set property %s to %s\n",
 879               debugstr_w(info->prop), debugstr_w(val) );
 880         CharUpperBuffW( val, info->num_chars );
 881         MSI_SetPropertyW( info->dialog->package, info->prop, val );
 882         msi_dialog_evaluate_control_conditions( info->dialog );
 883     }
 884     msi_free( val );
 885 }
 886
 887 /* now move to the next control if necessary */
 888 static VOID msi_mask_next_control( struct msi_maskedit_info *info, HWND hWnd )
 889 {
 890     HWND hWndNext;
 891     UINT len, i;
 892
 893     for( i=0; i<info->num_groups; i++ )
 894         if( info->group[i].hwnd == hWnd )
 895             break;
 896
 897     /* don't move from the last control */
 898     if( i >= (info->num_groups-1) )
 899         return;
 900
 901     len = SendMessageW( hWnd, WM_GETTEXTLENGTH, 0, 0 );
 902     if( len < info->group[i].len )
 903         return;
 904
 905     hWndNext = GetNextDlgTabItem( GetParent( hWnd ), hWnd, FALSE );
 906     SetFocus( hWndNext );
 907 }
 908
 909 static LRESULT WINAPI
 910 MSIMaskedEdit_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 911 {
 912     struct msi_maskedit_info *info;
 913     HRESULT r;
 914
 915     TRACE("%p %04x %08x %08lx\n", hWnd, msg, wParam, lParam);
 916
 917     info = GetPropW(hWnd, szButtonData);
 918
 919     r = CallWindowProcW(info->oldproc, hWnd, msg, wParam, lParam);
 920
 921     switch( msg )
 922     {
 923     case WM_COMMAND:
 924         if (HIWORD(wParam) == EN_CHANGE)
 925         {
 926             msi_mask_control_change( info );
 927             msi_mask_next_control( info, (HWND) lParam );
 928         }
 929         break;
 930     case WM_NCDESTROY:
 931         msi_free( info->prop );
 932         msi_free( info );
 933         RemovePropW( hWnd, szButtonData );
 934         break;
 935     }
 936
 937     return r;
 938 }
 939
 940 /* fish the various bits of the property out and put them in the control */
 941 static void
 942 msi_maskedit_set_text( struct msi_maskedit_info *info, LPCWSTR text )
 943 {
 944     LPCWSTR p;
 945     UINT i;
 946
 947     p = text;
 948     for( i = 0; i < info->num_groups; i++ )
 949     {
 950         if( info->group[i].len < lstrlenW( p ) )
 951         {
 952             LPWSTR chunk = strdupW( p );
 953             chunk[ info->group[i].len ] = 0;
 954             SetWindowTextW( info->group[i].hwnd, chunk );
 955             msi_free( chunk );
 956         }
 957         else
 958         {
 959             SetWindowTextW( info->group[i].hwnd, p );
 960             break;
 961         }
 962         p += info->group[i].len;
 963     }
 964 }
 965
 966 static struct msi_maskedit_info * msi_dialog_parse_groups( LPCWSTR mask )
 967 {
 968     struct msi_maskedit_info * info = NULL;
 969     int i = 0, n = 0, total = 0;
 970     LPCWSTR p;
 971
 972     TRACE("masked control, template %s\n", debugstr_w(mask));
 973
 974     if( !mask )
 975         return info;
 976
 977     p = strchrW(mask, '<');
 978     if( !p )
 979         return info;
 980
 981     info = msi_alloc_zero( sizeof *info );
 982     if( !info )
 983         return info;
 984
 985     p++;
 986     for( i=0; i<MASK_MAX_GROUPS; i++ )
 987     {
 988         while (*p=='-')
 989         {
 990             total++;
 991             p++;
 992         }
 993
 994         /* stop at the end of the string */
 995         if( p[0] == 0 || p[0] == '>' )
 996             break;
 997
 998         /* count the number of the same identifier */
 999         for( n=0; p[n] == p[0]; n++ )
1000             ;
1001         info->group[i].ofs = total;
1002         info->group[i].type = p[0];
1003         if( p[n] == '=' )
1004         {
1005             n++;
1006             total++; /* an extra not part of the group */
1007         }
1008         info->group[i].len = n;
1009         total += n;
1010         p += n;
1011     }
1012
1013     TRACE("%d characters in %d groups\n", total, i );
1014     if( i == MASK_MAX_GROUPS )
1015         ERR("too many groups in PIDTemplate %s\n", debugstr_w(mask));
1016
1017     info->num_chars = total;
1018     info->num_groups = i;
1019
1020     return info;
1021 }
1022
1023 static void
1024 msi_maskedit_create_children( struct msi_maskedit_info *info, LPCWSTR font )
1025 {
1026     DWORD width, height, style, wx, ww;
1027     RECT rect;
1028     HWND hwnd;
1029     UINT i;
1030
1031     style = WS_CHILD | WS_BORDER | WS_VISIBLE | WS_TABSTOP;
1032
1033     GetClientRect( info->hwnd, &rect );
1034
1035     width = rect.right - rect.left;
1036     height = rect.bottom - rect.top;
1037
1038     for( i = 0; i < info->num_groups; i++ )
1039     {
1040         wx = (info->group[i].ofs * width) / info->num_chars;
1041         ww = (info->group[i].len * width) / info->num_chars;
1042
1043         hwnd = CreateWindowW( szEdit, NULL, style, wx, 0, ww, height,
1044                               info->hwnd, NULL, NULL, NULL );
1045         if( !hwnd )
1046         {
1047             ERR("failed to create mask edit sub window\n");
1048             break;
1049         }
1050
1051         SendMessageW( hwnd, EM_LIMITTEXT, info->group[i].len, 0 );
1052
1053         msi_dialog_set_font( info->dialog, hwnd,
1054                              font?font:info->dialog->default_font );
1055         info->group[i].hwnd = hwnd;
1056     }
1057 }
1058
1059 /* office 2003 uses "73931<````=````=````=````=`````>@@@@@" */
1060 static UINT msi_dialog_maskedit_control( msi_dialog *dialog, MSIRECORD *rec )
1061 {
1062     LPWSTR font_mask, val = NULL, font;
1063     struct msi_maskedit_info *info = NULL;
1064     UINT ret = ERROR_SUCCESS;
1065     msi_control *control;
1066     LPCWSTR prop, mask;
1067
1068     TRACE("\n");
1069
1070     font_mask = msi_get_deformatted_field( dialog->package, rec, 10 );
1071     font = msi_dialog_get_style( font_mask, &mask );
1072     if( !mask )
1073     {
1074         ERR("mask template is empty\n");
1075         goto end;
1076     }
1077
1078     info = msi_dialog_parse_groups( mask );
1079     if( !info )
1080     {
1081         ERR("template %s is invalid\n", debugstr_w(mask));
1082         goto end;
1083     }
1084
1085     info->dialog = dialog;
1086
1087     control = msi_dialog_add_control( dialog, rec, szStatic,
1088                    SS_OWNERDRAW | WS_GROUP | WS_VISIBLE );
1089     if( !control )
1090     {
1091         ERR("Failed to create maskedit container\n");
1092         ret = ERROR_FUNCTION_FAILED;
1093         goto end;
1094     }
1095     SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_CONTROLPARENT );
1096
1097     info->hwnd = control->hwnd;
1098
1099     /* subclass the static control */
1100     info->oldproc = (WNDPROC) SetWindowLongPtrW( info->hwnd, GWLP_WNDPROC,
1101                                           (LONG_PTR)MSIMaskedEdit_WndProc );
1102     SetPropW( control->hwnd, szButtonData, info );
1103
1104     prop = MSI_RecordGetString( rec, 9 );
1105     if( prop )
1106         info->prop = strdupW( prop );
1107
1108     msi_maskedit_create_children( info, font );
1109
1110     if( prop )
1111     {
1112         val = msi_dup_property( dialog->package, prop );
1113         if( val )
1114         {
1115             msi_maskedit_set_text( info, val );
1116             msi_free( val );
1117         }
1118     }
1119
1120 end:
1121     if( ret != ERROR_SUCCESS )
1122         msi_free( info );
1123     msi_free( font_mask );
1124     msi_free( font );
1125     return ret;
1126 }
1127
1128 /******************** Path Edit ********************************************/
1129
1130 static UINT msi_dialog_pathedit_control( msi_dialog *dialog, MSIRECORD *rec )
1131 {
1132     FIXME("not implemented properly\n");
1133     return msi_dialog_edit_control( dialog, rec );
1134 }
1135
1136 /* radio buttons are a bit different from normal controls */
1137 static UINT msi_dialog_create_radiobutton( MSIRECORD *rec, LPVOID param )
1138 {
1139     radio_button_group_descr *group = (radio_button_group_descr *)param;
1140     msi_dialog *dialog = group->dialog;
1141     msi_control *control;
1142     LPCWSTR prop, text, name;
1143     DWORD style, attributes = group->attributes;
1144
1145     style = WS_CHILD | BS_AUTORADIOBUTTON | BS_MULTILINE | WS_TABSTOP;
1146     name = MSI_RecordGetString( rec, 3 );
1147     text = MSI_RecordGetString( rec, 8 );
1148     if( attributes & 1 )
1149         style |= WS_VISIBLE;
1150     if( ~attributes & 2 )
1151         style |= WS_DISABLED;
1152
1153     control = msi_dialog_create_window( dialog, rec, szButton, name, text,
1154                                         style, group->parent->hwnd );
1155     if (!control)
1156         return ERROR_FUNCTION_FAILED;
1157     control->handler = msi_dialog_radiogroup_handler;
1158
1159     prop = MSI_RecordGetString( rec, 1 );
1160     if( prop )
1161         control->property = strdupW( prop );
1162
1163     return ERROR_SUCCESS;
1164 }
1165
1166 static UINT msi_dialog_radiogroup_control( msi_dialog *dialog, MSIRECORD *rec )
1167 {
1168     static const WCHAR query[] = {
1169         'S','E','L','E','C','T',' ','*',' ',
1170         'F','R','O','M',' ','R','a','d','i','o','B','u','t','t','o','n',' ',
1171         'W','H','E','R','E',' ',
1172            '`','P','r','o','p','e','r','t','y','`',' ','=',' ','\'','%','s','\'',0};
1173     UINT r;
1174     LPCWSTR prop;
1175     msi_control *control;
1176     MSIQUERY *view = NULL;
1177     radio_button_group_descr group;
1178     MSIPACKAGE *package = dialog->package;
1179     WNDPROC oldproc;
1180
1181     prop = MSI_RecordGetString( rec, 9 );
1182
1183     TRACE("%p %p %s\n", dialog, rec, debugstr_w( prop ));
1184
1185     /* Create parent group box to hold radio buttons */
1186     control = msi_dialog_add_control( dialog, rec, szButton, BS_OWNERDRAW|WS_GROUP );
1187     if( !control )
1188         return ERROR_FUNCTION_FAILED;
1189
1190     oldproc = (WNDPROC) SetWindowLongPtrW( control->hwnd, GWLP_WNDPROC,
1191                                            (LONG_PTR)MSIRadioGroup_WndProc );
1192     SetPropW(control->hwnd, szButtonData, oldproc);
1193     SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_CONTROLPARENT );
1194
1195     if( prop )
1196         control->property = strdupW( prop );
1197
1198     /* query the Radio Button table for all control in this group */
1199     r = MSI_OpenQuery( package->db, &view, query, prop );
1200     if( r != ERROR_SUCCESS )
1201     {
1202         ERR("query failed for dialog %s radio group %s\n",
1203             debugstr_w(dialog->name), debugstr_w(prop));
1204         return ERROR_INVALID_PARAMETER;
1205     }
1206
1207     group.dialog = dialog;
1208     group.parent = control;
1209     group.attributes = MSI_RecordGetInteger( rec, 8 );
1210
1211     r = MSI_IterateRecords( view, 0, msi_dialog_create_radiobutton, &group );
1212     msiobj_release( &view->hdr );
1213
1214     return r;
1215 }
1216
1217 struct control_handler msi_dialog_handler[] =
1218 {
1219     { szText, msi_dialog_text_control },
1220     { szPushButton, msi_dialog_button_control },
1221     { szLine, msi_dialog_line_control },
1222     { szBitmap, msi_dialog_bitmap_control },
1223     { szCheckBox, msi_dialog_checkbox_control },
1224     { szScrollableText, msi_dialog_scrolltext_control },
1225     { szComboBox, msi_dialog_combo_control },
1226     { szEdit, msi_dialog_edit_control },
1227     { szMaskedEdit, msi_dialog_maskedit_control },
1228     { szPathEdit, msi_dialog_pathedit_control },
1229     { szRadioButtonGroup, msi_dialog_radiogroup_control },
1230     { szIcon, msi_dialog_icon_control },
1231 };
1232
1233 #define NUM_CONTROL_TYPES (sizeof msi_dialog_handler/sizeof msi_dialog_handler[0])
1234
1235 static UINT msi_dialog_create_controls( MSIRECORD *rec, LPVOID param )
1236 {
1237     msi_dialog *dialog = param;
1238     LPCWSTR control_type;
1239     UINT i;
1240
1241     /* find and call the function that can create this type of control */
1242     control_type = MSI_RecordGetString( rec, 3 );
1243     for( i=0; i<NUM_CONTROL_TYPES; i++ )
1244         if (!strcmpiW( msi_dialog_handler[i].control_type, control_type ))
1245             break;
1246     if( i != NUM_CONTROL_TYPES )
1247         msi_dialog_handler[i].func( dialog, rec );
1248     else
1249         ERR("no handler for element type %s\n", debugstr_w(control_type));
1250
1251     return ERROR_SUCCESS;
1252 }
1253
1254 static UINT msi_dialog_fill_controls( msi_dialog *dialog )
1255 {
1256     static const WCHAR query[] = {
1257         'S','E','L','E','C','T',' ','*',' ',
1258         'F','R','O','M',' ','C','o','n','t','r','o','l',' ',
1259         'W','H','E','R','E',' ',
1260            '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0};
1261     UINT r;
1262     MSIQUERY *view = NULL;
1263     MSIPACKAGE *package = dialog->package;
1264
1265     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1266
1267     /* query the Control table for all the elements of the control */
1268     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
1269     if( r != ERROR_SUCCESS )
1270     {
1271         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1272         return ERROR_INVALID_PARAMETER;
1273     }
1274
1275     r = MSI_IterateRecords( view, 0, msi_dialog_create_controls, dialog );
1276     msiobj_release( &view->hdr );
1277
1278     return r;
1279 }
1280
1281 static UINT msi_dialog_set_control_condition( MSIRECORD *rec, LPVOID param )
1282 {
1283     static const WCHAR szHide[] = { 'H','i','d','e',0 };
1284     static const WCHAR szShow[] = { 'S','h','o','w',0 };
1285     static const WCHAR szDisable[] = { 'D','i','s','a','b','l','e',0 };
1286     static const WCHAR szEnable[] = { 'E','n','a','b','l','e',0 };
1287     msi_dialog *dialog = param;
1288     msi_control *control;
1289     LPCWSTR name, action, condition;
1290     UINT r;
1291
1292     name = MSI_RecordGetString( rec, 2 );
1293     action = MSI_RecordGetString( rec, 3 );
1294     condition = MSI_RecordGetString( rec, 4 );
1295     r = MSI_EvaluateConditionW( dialog->package, condition );
1296     control = msi_dialog_find_control( dialog, name );
1297     if( r && control )
1298     {
1299         TRACE("%s control %s\n", debugstr_w(action), debugstr_w(name));
1300
1301         /* FIXME: case sensitive? */
1302         if(!lstrcmpW(action, szHide))
1303             ShowWindow(control->hwnd, SW_HIDE);
1304         else if(!strcmpW(action, szShow))
1305             ShowWindow(control->hwnd, SW_SHOW);
1306         else if(!strcmpW(action, szDisable))
1307             EnableWindow(control->hwnd, FALSE);
1308         else if(!strcmpW(action, szEnable))
1309             EnableWindow(control->hwnd, TRUE);
1310         else
1311             FIXME("Unhandled action %s\n", debugstr_w(action));
1312     }
1313
1314     return ERROR_SUCCESS;
1315 }
1316
1317 static UINT msi_dialog_evaluate_control_conditions( msi_dialog *dialog )
1318 {
1319     static const WCHAR query[] = {
1320       'S','E','L','E','C','T',' ','*',' ',
1321       'F','R','O','M',' ',
1322         'C','o','n','t','r','o','l','C','o','n','d','i','t','i','o','n',' ',
1323       'W','H','E','R','E',' ',
1324         '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0
1325     };
1326     UINT r;
1327     MSIQUERY *view = NULL;
1328     MSIPACKAGE *package = dialog->package;
1329
1330     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1331
1332     /* query the Control table for all the elements of the control */
1333     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
1334     if( r != ERROR_SUCCESS )
1335     {
1336         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1337         return ERROR_INVALID_PARAMETER;
1338     }
1339
1340     r = MSI_IterateRecords( view, 0, msi_dialog_set_control_condition, dialog );
1341     msiobj_release( &view->hdr );
1342
1343     return r;
1344 }
1345
1346 /* figure out the height of 10 point MS Sans Serif */
1347 static INT msi_dialog_get_sans_serif_height( HWND hwnd )
1348 {
1349     static const WCHAR szSansSerif[] = {
1350         'M','S',' ','S','a','n','s',' ','S','e','r','i','f',0 };
1351     LOGFONTW lf;
1352     TEXTMETRICW tm;
1353     BOOL r;
1354     LONG height = 0;
1355     HFONT hFont, hOldFont;
1356     HDC hdc;
1357
1358     hdc = GetDC( hwnd );
1359     if (hdc)
1360     {
1361         memset( &lf, 0, sizeof lf );
1362         lf.lfHeight = MulDiv(10, GetDeviceCaps(hdc, LOGPIXELSY), 72);
1363         strcpyW( lf.lfFaceName, szSansSerif );
1364         hFont = CreateFontIndirectW(&lf);
1365         if (hFont)
1366         {
1367             hOldFont = SelectObject( hdc, hFont );
1368             r = GetTextMetricsW( hdc, &tm );
1369             if (r)
1370                 height = tm.tmHeight;
1371             SelectObject( hdc, hOldFont );
1372             DeleteObject( hFont );
1373         }
1374         ReleaseDC( hwnd, hdc );
1375     }
1376     return height;
1377 }
1378
1379 /* fetch the associated record from the Dialog table */
1380 static MSIRECORD *msi_get_dialog_record( msi_dialog *dialog )
1381 {
1382     static const WCHAR query[] = {
1383         'S','E','L','E','C','T',' ','*',' ',
1384         'F','R','O','M',' ','D','i','a','l','o','g',' ',
1385         'W','H','E','R','E',' ',
1386            '`','D','i','a','l','o','g','`',' ','=',' ','\'','%','s','\'',0};
1387     MSIPACKAGE *package = dialog->package;
1388     MSIRECORD *rec = NULL;
1389
1390     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1391
1392     rec = MSI_QueryGetRecord( package->db, query, dialog->name );
1393     if( !rec )
1394         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1395
1396     return rec;
1397 }
1398
1399 static void msi_dialog_adjust_dialog_size( msi_dialog *dialog, LPSIZE sz )
1400 {
1401     RECT rect;
1402     LONG style;
1403
1404     /* turn the client size into the window rectangle */
1405     rect.left = 0;
1406     rect.top = 0;
1407     rect.right = msi_dialog_scale_unit( dialog, sz->cx );
1408     rect.bottom = msi_dialog_scale_unit( dialog, sz->cy );
1409     style = GetWindowLongPtrW( dialog->hwnd, GWL_STYLE );
1410     AdjustWindowRect( &rect, style, FALSE );
1411     sz->cx = rect.right - rect.left;
1412     sz->cy = rect.bottom - rect.top;
1413 }
1414
1415 static BOOL msi_control_set_next( msi_control *control, msi_control *next )
1416 {
1417     return SetWindowPos( next->hwnd, control->hwnd, 0, 0, 0, 0,
1418                          SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOREDRAW |
1419                          SWP_NOREPOSITION | SWP_NOSENDCHANGING | SWP_NOSIZE );
1420 }
1421
1422 static UINT msi_dialog_set_tab_order( msi_dialog *dialog )
1423 {
1424     msi_control *control, *tab_next;
1425
1426     LIST_FOR_EACH_ENTRY( control, &dialog->controls, msi_control, entry )
1427     {
1428         tab_next = msi_dialog_find_control( dialog, control->tabnext );
1429         if( !tab_next )
1430             continue;
1431         msi_control_set_next( control, tab_next );
1432     }
1433
1434     return ERROR_SUCCESS;
1435 }
1436
1437 static void msi_dialog_set_first_control( msi_dialog* dialog, LPCWSTR name )
1438 {
1439     msi_control *control;
1440
1441     control = msi_dialog_find_control( dialog, name );
1442     if( control )
1443         dialog->hWndFocus = control->hwnd;
1444     else
1445         dialog->hWndFocus = NULL;
1446 }
1447
1448 static LRESULT msi_dialog_oncreate( HWND hwnd, LPCREATESTRUCTW cs )
1449 {
1450     static const WCHAR df[] = {
1451         'D','e','f','a','u','l','t','U','I','F','o','n','t',0 };
1452     msi_dialog *dialog = (msi_dialog*) cs->lpCreateParams;
1453     MSIRECORD *rec = NULL;
1454     LPWSTR title = NULL;
1455     SIZE size;
1456
1457     TRACE("%p %p\n", dialog, dialog->package);
1458
1459     dialog->hwnd = hwnd;
1460     SetWindowLongPtrW( hwnd, GWLP_USERDATA, (LONG_PTR) dialog );
1461
1462     rec = msi_get_dialog_record( dialog );
1463     if( !rec )
1464     {
1465         TRACE("No record found for dialog %s\n", debugstr_w(dialog->name));
1466         return -1;
1467     }
1468
1469     dialog->scale = msi_dialog_get_sans_serif_height(dialog->hwnd);
1470
1471     size.cx = MSI_RecordGetInteger( rec, 4 );
1472     size.cy = MSI_RecordGetInteger( rec, 5 );
1473     msi_dialog_adjust_dialog_size( dialog, &size );
1474
1475     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
1476
1477     dialog->default_font = msi_dup_property( dialog->package, df );
1478
1479     title = msi_get_deformatted_field( dialog->package, rec, 7 );
1480     SetWindowTextW( hwnd, title );
1481     msi_free( title );
1482
1483     SetWindowPos( hwnd, 0, 0, 0, size.cx, size.cy,
1484                   SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW );
1485
1486
1487     msi_dialog_build_font_list( dialog );
1488     msi_dialog_fill_controls( dialog );
1489     msi_dialog_evaluate_control_conditions( dialog );
1490     msi_dialog_set_tab_order( dialog );
1491     msi_dialog_set_first_control( dialog, MSI_RecordGetString( rec, 8 ) );
1492     msiobj_release( &rec->hdr );
1493
1494     return 0;
1495 }
1496
1497 static UINT msi_dialog_send_event( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
1498 {
1499     LPWSTR event_fmt = NULL, arg_fmt = NULL;
1500
1501     TRACE("Sending control event %s %s\n", debugstr_w(event), debugstr_w(arg));
1502
1503     deformat_string( dialog->package, event, &event_fmt );
1504     deformat_string( dialog->package, arg, &arg_fmt );
1505
1506     dialog->event_handler( dialog->package, event_fmt, arg_fmt, dialog );
1507
1508     msi_free( event_fmt );
1509     msi_free( arg_fmt );
1510
1511     return ERROR_SUCCESS;
1512 }
1513
1514 static UINT msi_dialog_set_property( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
1515 {
1516     static const WCHAR szNullArg[] = { '{','}',0 };
1517     LPWSTR p, prop, arg_fmt = NULL;
1518     UINT len;
1519
1520     len = strlenW(event);
1521     prop = msi_alloc( len*sizeof(WCHAR));
1522     strcpyW( prop, &event[1] );
1523     p = strchrW( prop, ']' );
1524     if( p && p[1] == 0 )
1525     {
1526         *p = 0;
1527         if( strcmpW( szNullArg, arg ) )
1528             deformat_string( dialog->package, arg, &arg_fmt );
1529         MSI_SetPropertyW( dialog->package, prop, arg_fmt );
1530         msi_free( arg_fmt );
1531     }
1532     else
1533         ERR("Badly formatted property string - what happens?\n");
1534     msi_free( prop );
1535     return ERROR_SUCCESS;
1536 }
1537
1538 static UINT msi_dialog_control_event( MSIRECORD *rec, LPVOID param )
1539 {
1540     msi_dialog *dialog = param;
1541     LPCWSTR condition, event, arg;
1542     UINT r;
1543
1544     condition = MSI_RecordGetString( rec, 5 );
1545     r = MSI_EvaluateConditionW( dialog->package, condition );
1546     if( r )
1547     {
1548         event = MSI_RecordGetString( rec, 3 );
1549         arg = MSI_RecordGetString( rec, 4 );
1550         if( event[0] == '[' )
1551             msi_dialog_set_property( dialog, event, arg );
1552         else
1553             msi_dialog_send_event( dialog, event, arg );
1554     }
1555
1556     return ERROR_SUCCESS;
1557 }
1558
1559 static UINT msi_dialog_button_handler( msi_dialog *dialog,
1560                                        msi_control *control, WPARAM param )
1561 {
1562     static const WCHAR query[] = {
1563       'S','E','L','E','C','T',' ','*',' ',
1564       'F','R','O','M',' ','C','o','n','t','r','o','l','E','v','e','n','t',' ',
1565       'W','H','E','R','E',' ',
1566          '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',' ',
1567       'A','N','D',' ',
1568          '`','C','o','n','t','r','o','l','_','`',' ','=',' ','\'','%','s','\'',' ',
1569       'O','R','D','E','R',' ','B','Y',' ','`','O','r','d','e','r','i','n','g','`',0
1570     };
1571     MSIQUERY *view = NULL;
1572     UINT r;
1573
1574     if( HIWORD(param) != BN_CLICKED )
1575         return ERROR_SUCCESS;
1576
1577     r = MSI_OpenQuery( dialog->package->db, &view, query,
1578                        dialog->name, control->name );
1579     if( r != ERROR_SUCCESS )
1580     {
1581         ERR("query failed\n");
1582         return 0;
1583     }
1584
1585     r = MSI_IterateRecords( view, 0, msi_dialog_control_event, dialog );
1586     msiobj_release( &view->hdr );
1587
1588     return r;
1589 }
1590
1591 static UINT msi_dialog_get_checkbox_state( msi_dialog *dialog,
1592                 msi_control *control )
1593 {
1594     WCHAR state[2] = { 0 };
1595     DWORD sz = 2;
1596
1597     MSI_GetPropertyW( dialog->package, control->property, state, &sz );
1598     return state[0] ? 1 : 0;
1599 }
1600
1601 static void msi_dialog_set_checkbox_state( msi_dialog *dialog,
1602                 msi_control *control, UINT state )
1603 {
1604     static const WCHAR szState[] = { '1', 0 };
1605     LPCWSTR val;
1606
1607     /* if uncheck then the property is set to NULL */
1608     if (!state)
1609     {
1610         MSI_SetPropertyW( dialog->package, control->property, NULL );
1611         return;
1612     }
1613
1614     /* check for a custom state */
1615     if (control->value && control->value[0])
1616         val = control->value;
1617     else
1618         val = szState;
1619
1620     MSI_SetPropertyW( dialog->package, control->property, val );
1621 }
1622
1623 static void msi_dialog_checkbox_sync_state( msi_dialog *dialog,
1624                 msi_control *control )
1625 {
1626     UINT state;
1627
1628     state = msi_dialog_get_checkbox_state( dialog, control );
1629     SendMessageW( control->hwnd, BM_SETCHECK,
1630                   state ? BST_CHECKED : BST_UNCHECKED, 0 );
1631 }
1632
1633 static UINT msi_dialog_checkbox_handler( msi_dialog *dialog,
1634                 msi_control *control, WPARAM param )
1635 {
1636     UINT state;
1637
1638     if( HIWORD(param) != BN_CLICKED )
1639         return ERROR_SUCCESS;
1640
1641     TRACE("clicked checkbox %s, set %s\n", debugstr_w(control->name),
1642           debugstr_w(control->property));
1643
1644     state = msi_dialog_get_checkbox_state( dialog, control );
1645     state = state ? 0 : 1;
1646     msi_dialog_set_checkbox_state( dialog, control, state );
1647     msi_dialog_checkbox_sync_state( dialog, control );
1648
1649     return msi_dialog_button_handler( dialog, control, param );
1650 }
1651
1652 static UINT msi_dialog_edit_handler( msi_dialog *dialog,
1653                 msi_control *control, WPARAM param )
1654 {
1655     UINT sz, r;
1656     LPWSTR buf;
1657
1658     if( HIWORD(param) != EN_CHANGE )
1659         return ERROR_SUCCESS;
1660
1661     TRACE("edit %s contents changed, set %s\n", debugstr_w(control->name),
1662           debugstr_w(control->property));
1663
1664     sz = 0x20;
1665     buf = msi_alloc( sz*sizeof(WCHAR) );
1666     while( buf )
1667     {
1668         r = GetWindowTextW( control->hwnd, buf, sz );
1669         if( r < (sz-1) )
1670             break;
1671         sz *= 2;
1672         buf = msi_realloc( buf, sz*sizeof(WCHAR) );
1673     }
1674
1675     MSI_SetPropertyW( dialog->package, control->property, buf );
1676
1677     msi_free( buf );
1678
1679     return ERROR_SUCCESS;
1680 }
1681
1682 static UINT msi_dialog_radiogroup_handler( msi_dialog *dialog,
1683                 msi_control *control, WPARAM param )
1684 {
1685     if( HIWORD(param) != BN_CLICKED )
1686         return ERROR_SUCCESS;
1687
1688     TRACE("clicked radio button %s, set %s\n", debugstr_w(control->name),
1689           debugstr_w(control->property));
1690
1691     MSI_SetPropertyW( dialog->package, control->property, control->name );
1692
1693     return msi_dialog_button_handler( dialog, control, param );
1694 }
1695
1696 static LRESULT msi_dialog_oncommand( msi_dialog *dialog, WPARAM param, HWND hwnd )
1697 {
1698     msi_control *control;
1699
1700     TRACE("%p %p %08x\n", dialog, hwnd, param);
1701
1702     control = msi_dialog_find_control_by_hwnd( dialog, hwnd );
1703     if( control )
1704     {
1705         if( control->handler )
1706         {
1707             control->handler( dialog, control, param );
1708             msi_dialog_evaluate_control_conditions( dialog );
1709         }
1710     }
1711     else
1712         ERR("button click from nowhere\n");
1713     return 0;
1714 }
1715
1716 static void msi_dialog_setfocus( msi_dialog *dialog )
1717 {
1718     HWND hwnd = dialog->hWndFocus;
1719
1720     hwnd = GetNextDlgTabItem( dialog->hwnd, hwnd, TRUE);
1721     hwnd = GetNextDlgTabItem( dialog->hwnd, hwnd, FALSE);
1722     SetFocus( hwnd );
1723     dialog->hWndFocus = hwnd;
1724 }
1725
1726 static LRESULT WINAPI MSIDialog_WndProc( HWND hwnd, UINT msg,
1727                 WPARAM wParam, LPARAM lParam )
1728 {
1729     msi_dialog *dialog = (LPVOID) GetWindowLongPtrW( hwnd, GWLP_USERDATA );
1730
1731     TRACE("0x%04x\n", msg);
1732
1733     switch (msg)
1734     {
1735     case WM_CREATE:
1736         return msi_dialog_oncreate( hwnd, (LPCREATESTRUCTW)lParam );
1737
1738     case WM_COMMAND:
1739         return msi_dialog_oncommand( dialog, wParam, (HWND)lParam );
1740
1741     case WM_ACTIVATE:
1742         if( LOWORD(wParam) == WA_INACTIVE )
1743             dialog->hWndFocus = GetFocus();
1744         else
1745             msi_dialog_setfocus( dialog );
1746         return 0;
1747
1748     case WM_SETFOCUS:
1749         msi_dialog_setfocus( dialog );
1750         return 0;
1751
1752     /* bounce back to our subclassed static control */
1753     case WM_CTLCOLORSTATIC:
1754         return SendMessageW( (HWND) lParam, WM_CTLCOLORSTATIC, wParam, lParam );
1755
1756     case WM_DESTROY:
1757         dialog->hwnd = NULL;
1758         return 0;
1759     }
1760     return DefWindowProcW(hwnd, msg, wParam, lParam);
1761 }
1762
1763 static LRESULT WINAPI MSIRadioGroup_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1764 {
1765     WNDPROC oldproc = (WNDPROC) GetPropW(hWnd, szButtonData);
1766
1767     TRACE("hWnd %p msg %04x wParam 0x%08x lParam 0x%08lx\n", hWnd, msg, wParam, lParam);
1768
1769     if (msg == WM_COMMAND) /* Forward notifications to dialog */
1770         SendMessageW(GetParent(hWnd), msg, wParam, lParam);
1771
1772     return CallWindowProcW(oldproc, hWnd, msg, wParam, lParam);
1773 }
1774
1775 static LRESULT WINAPI MSIHiddenWindowProc( HWND hwnd, UINT msg,
1776                 WPARAM wParam, LPARAM lParam )
1777 {
1778     msi_dialog *dialog = (msi_dialog*) lParam;
1779
1780     TRACE("%d %p\n", msg, dialog);
1781
1782     switch (msg)
1783     {
1784     case WM_MSI_DIALOG_CREATE:
1785         return msi_dialog_run_message_loop( dialog );
1786     case WM_MSI_DIALOG_DESTROY:
1787         msi_dialog_destroy( dialog );
1788         return 0;
1789     }
1790     return DefWindowProcW( hwnd, msg, wParam, lParam );
1791 }
1792
1793 /* functions that interface to other modules within MSI */
1794
1795 msi_dialog *msi_dialog_create( MSIPACKAGE* package, LPCWSTR szDialogName,
1796                                 msi_dialog_event_handler event_handler )
1797 {
1798     MSIRECORD *rec = NULL;
1799     msi_dialog *dialog;
1800
1801     TRACE("%p %s\n", package, debugstr_w(szDialogName));
1802
1803     /* allocate the structure for the dialog to use */
1804     dialog = msi_alloc_zero( sizeof *dialog + sizeof(WCHAR)*strlenW(szDialogName) );
1805     if( !dialog )
1806         return NULL;
1807     strcpyW( dialog->name, szDialogName );
1808     msiobj_addref( &package->hdr );
1809     dialog->package = package;
1810     dialog->event_handler = event_handler;
1811     dialog->finished = 0;
1812     list_init( &dialog->controls );
1813
1814     /* verify that the dialog exists */
1815     rec = msi_get_dialog_record( dialog );
1816     if( !rec )
1817     {
1818         msiobj_release( &package->hdr );
1819         msi_free( dialog );
1820         return NULL;
1821     }
1822     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
1823     msiobj_release( &rec->hdr );
1824
1825     return dialog;
1826 }
1827
1828 static void msi_process_pending_messages( HWND hdlg )
1829 {
1830     MSG msg;
1831
1832     while( PeekMessageW( &msg, 0, 0, 0, PM_REMOVE ) )
1833     {
1834         if( hdlg && IsDialogMessageW( hdlg, &msg ))
1835             continue;
1836         TranslateMessage( &msg );
1837         DispatchMessageW( &msg );
1838     }
1839 }
1840
1841 void msi_dialog_end_dialog( msi_dialog *dialog )
1842 {
1843     TRACE("%p\n", dialog);
1844     dialog->finished = 1;
1845     PostMessageW(dialog->hwnd, WM_NULL, 0, 0);
1846 }
1847
1848 void msi_dialog_check_messages( HANDLE handle )
1849 {
1850     DWORD r;
1851
1852     /* in threads other than the UI thread, block */
1853     if( uiThreadId != GetCurrentThreadId() )
1854     {
1855         if( handle )
1856             WaitForSingleObject( handle, INFINITE );
1857         return;
1858     }
1859
1860     /* there's two choices for the UI thread */
1861     while (1)
1862     {
1863         msi_process_pending_messages( NULL );
1864
1865         if( !handle )
1866             break;
1867
1868         /*
1869          * block here until somebody creates a new dialog or
1870          * the handle we're waiting on becomes ready
1871          */
1872         r = MsgWaitForMultipleObjects( 1, &handle, 0, INFINITE, QS_ALLINPUT );
1873         if( r == WAIT_OBJECT_0 )
1874             break;
1875     }
1876 }
1877
1878 UINT msi_dialog_run_message_loop( msi_dialog *dialog )
1879 {
1880     HWND hwnd;
1881
1882     if( !(dialog->attributes & msidbDialogAttributesVisible) )
1883         return ERROR_SUCCESS;
1884
1885     if( uiThreadId != GetCurrentThreadId() )
1886         return SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_CREATE, 0, (LPARAM) dialog );
1887
1888     /* create the dialog window, don't show it yet */
1889     hwnd = CreateWindowW( szMsiDialogClass, dialog->name, WS_OVERLAPPEDWINDOW,
1890                      CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
1891                      NULL, NULL, NULL, dialog );
1892     if( !hwnd )
1893     {
1894         ERR("Failed to create dialog %s\n", debugstr_w( dialog->name ));
1895         return ERROR_FUNCTION_FAILED;
1896     }
1897
1898     ShowWindow( hwnd, SW_SHOW );
1899     UpdateWindow( hwnd );
1900
1901     if( dialog->attributes & msidbDialogAttributesModal )
1902     {
1903         while( !dialog->finished )
1904         {
1905             MsgWaitForMultipleObjects( 0, NULL, 0, INFINITE, QS_ALLEVENTS );
1906             msi_process_pending_messages( dialog->hwnd );
1907         }
1908     }
1909     else
1910         return ERROR_IO_PENDING;
1911
1912     return ERROR_SUCCESS;
1913 }
1914
1915 void msi_dialog_do_preview( msi_dialog *dialog )
1916 {
1917     TRACE("\n");
1918     dialog->attributes |= msidbDialogAttributesVisible;
1919     dialog->attributes &= ~msidbDialogAttributesModal;
1920     msi_dialog_run_message_loop( dialog );
1921 }
1922
1923 void msi_dialog_destroy( msi_dialog *dialog )
1924 {
1925     if( uiThreadId != GetCurrentThreadId() )
1926     {
1927         SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_DESTROY, 0, (LPARAM) dialog );
1928         return;
1929     }
1930
1931     if( dialog->hwnd )
1932         ShowWindow( dialog->hwnd, SW_HIDE );
1933
1934     if( dialog->hwnd )
1935         DestroyWindow( dialog->hwnd );
1936
1937     /* destroy the list of controls */
1938     while( !list_empty( &dialog->controls ) )
1939     {
1940         msi_control *t = LIST_ENTRY( list_head( &dialog->controls ),
1941                                      msi_control, entry );
1942         list_remove( &t->entry );
1943         /* leave dialog->hwnd - destroying parent destroys child windows */
1944         msi_free( t->property );
1945         msi_free( t->value );
1946         if( t->hBitmap )
1947             DeleteObject( t->hBitmap );
1948         if( t->hIcon )
1949             DestroyIcon( t->hIcon );
1950         msi_free( t->tabnext );
1951         msi_free( t );
1952         if (t->hDll)
1953             FreeLibrary( t->hDll );
1954     }
1955
1956     /* destroy the list of fonts */
1957     while( dialog->font_list )
1958     {
1959         msi_font *t = dialog->font_list;
1960         dialog->font_list = t->next;
1961         DeleteObject( t->hfont );
1962         msi_free( t );
1963     }
1964     msi_free( dialog->default_font );
1965
1966     msiobj_release( &dialog->package->hdr );
1967     dialog->package = NULL;
1968     msi_free( dialog );
1969 }
1970
1971 BOOL msi_dialog_register_class( void )
1972 {
1973     WNDCLASSW cls;
1974
1975     ZeroMemory( &cls, sizeof cls );
1976     cls.lpfnWndProc   = MSIDialog_WndProc;
1977     cls.hInstance     = NULL;
1978     cls.hIcon         = LoadIconW(0, (LPWSTR)IDI_APPLICATION);
1979     cls.hCursor       = LoadCursorW(0, (LPWSTR)IDC_ARROW);
1980     cls.hbrBackground = (HBRUSH)(COLOR_3DFACE + 1);
1981     cls.lpszMenuName  = NULL;
1982     cls.lpszClassName = szMsiDialogClass;
1983
1984     if( !RegisterClassW( &cls ) )
1985         return FALSE;
1986
1987     cls.lpfnWndProc   = MSIHiddenWindowProc;
1988     cls.lpszClassName = szMsiHiddenWindow;
1989
1990     if( !RegisterClassW( &cls ) )
1991         return FALSE;
1992
1993     uiThreadId = GetCurrentThreadId();
1994
1995     hMsiHiddenWindow = CreateWindowW( szMsiHiddenWindow, NULL, WS_OVERLAPPED,
1996                                    0, 0, 100, 100, NULL, NULL, NULL, NULL );
1997     if( !hMsiHiddenWindow )
1998         return FALSE;
1999
2000     return TRUE;
2001 }
2002
2003 void msi_dialog_unregister_class( void )
2004 {
2005     DestroyWindow( hMsiHiddenWindow );
2006     UnregisterClassW( szMsiDialogClass, NULL );
2007     uiThreadId = 0;
2008 }