comctl32: Don't cast HPROPSHEETPAGE to PROPSHEETPAGEW*.

dlls/comctl32/propsheet.c

@@ -281,10 +281,8 @@ static INT PROPSHEET_FindPageByResId(const PropSheetInfo * psInfo, LRESULT resId
 
    for (i = 0; i < psInfo->nPages; i++)
    {
-      LPCPROPSHEETPAGEA lppsp = (LPCPROPSHEETPAGEA)psInfo->proppage[i].hpage;
-
       /* Fixme: if resource ID is a string shall we use strcmp ??? */
-      if (lppsp->u.pszTemplate == (LPVOID)resId)
+      if (psInfo->proppage[i].hpage->psp.u.pszTemplate == (LPVOID)resId)
          break;
    }
 
@@ -1514,7 +1512,6 @@ static BOOL PROPSHEET_ShowPage(HWND hwndDlg, int index, PropSheetInfo * psInfo)
   HWND hwndTabCtrl;
   HWND hwndLineHeader;
   HWND control;
-  LPCPROPSHEETPAGEW ppshpage;
 
   TRACE("active_page %d, index %d\n", psInfo->active_page, index);
   if (index == psInfo->active_page)
@@ -1555,9 +1552,9 @@ static BOOL PROPSHEET_ShowPage(HWND hwndDlg, int index, PropSheetInfo * psInfo)
   if (psInfo->ppshheader.dwFlags & (PSH_WIZARD97_OLD | PSH_WIZARD97_NEW) )
   {
       hwndLineHeader = GetDlgItem(hwndDlg, IDC_SUNKEN_LINEHEADER);
-      ppshpage = (LPCPROPSHEETPAGEW)psInfo->proppage[index].hpage;
       
-      if ((ppshpage->dwFlags & PSP_HIDEHEADER) || (!(psInfo->ppshheader.dwFlags & PSH_HEADER)) )
+      if ((psInfo->proppage[index].hpage->psp.dwFlags & PSP_HIDEHEADER) ||
+              (!(psInfo->ppshheader.dwFlags & PSH_HEADER)) )
 	  ShowWindow(hwndLineHeader, SW_HIDE);
       else
 	  ShowWindow(hwndLineHeader, SW_SHOW);
@@ -2399,9 +2396,9 @@ static BOOL PROPSHEET_RemovePage(HWND hwndDlg,
     psInfo->active_page--;
 
   /* Unsubclass the page dialog window */
-  if((psInfo->ppshheader.dwFlags & (PSH_WIZARD97_NEW | PSH_WIZARD97_OLD) &&
+  if((psInfo->ppshheader.dwFlags & (PSH_WIZARD97_NEW | PSH_WIZARD97_OLD)) &&
      (psInfo->ppshheader.dwFlags & PSH_WATERMARK) &&
-     ((PROPSHEETPAGEW*)psInfo->proppage[index].hpage)->dwFlags & PSP_HIDEHEADER))
+     (psInfo->proppage[index].hpage->psp.dwFlags & PSP_HIDEHEADER))
   {
      RemoveWindowSubclass(psInfo->proppage[index].hwndPage,
                           PROPSHEET_WizardSubclassProc, 1);
@@ -2413,9 +2410,7 @@ static BOOL PROPSHEET_RemovePage(HWND hwndDlg,
   /* Free page resources */
   if(psInfo->proppage[index].hpage)
   {
-     PROPSHEETPAGEW* psp = (PROPSHEETPAGEW*)psInfo->proppage[index].hpage;
-
-     if (psp->dwFlags & PSP_USETITLE)
+     if (psInfo->proppage[index].hpage->psp.dwFlags & PSP_USETITLE)
         Free ((LPVOID)psInfo->proppage[index].pszText);
 
      DestroyPropertySheetPage(psInfo->proppage[index].hpage);
@@ -2505,7 +2500,7 @@ static void PROPSHEET_SetHeaderTitleW(HWND hwndDlg, UINT page_index, const WCHAR
     if (page_index >= psInfo->nPages)
         return;
 
-    page = (PROPSHEETPAGEW *)psInfo->proppage[page_index].hpage;
+    page = &psInfo->proppage[page_index].hpage->psp;
 
     if (!IS_INTRESOURCE(page->pszHeaderTitle))
         Free((void *)page->pszHeaderTitle);
@@ -2541,7 +2536,7 @@ static void PROPSHEET_SetHeaderSubTitleW(HWND hwndDlg, UINT page_index, const WC
     if (page_index >= psInfo->nPages)
         return;
 
-    page = (PROPSHEETPAGEW *)psInfo->proppage[page_index].hpage;
+    page = &psInfo->proppage[page_index].hpage->psp;
 
     if (!IS_INTRESOURCE(page->pszHeaderSubTitle))
         Free((void *)page->pszHeaderSubTitle);
@@ -2629,12 +2624,10 @@ static LRESULT PROPSHEET_IndexToPage(HWND hwndDlg, int iPageIndex)
 static LRESULT PROPSHEET_IdToIndex(HWND hwndDlg, int iPageId)
 {
     int index;
-    LPCPROPSHEETPAGEW psp;
     PropSheetInfo * psInfo = GetPropW(hwndDlg, PropSheetInfoStr);
     TRACE("(%p, %d)\n", hwndDlg, iPageId);
     for (index = 0; index < psInfo->nPages; index++) {
-        psp = (LPCPROPSHEETPAGEW)psInfo->proppage[index].hpage;
-        if (psp->u.pszTemplate == MAKEINTRESOURCEW(iPageId))
+        if (psInfo->proppage[index].hpage->psp.u.pszTemplate == MAKEINTRESOURCEW(iPageId))
             return index;
     }
 
@@ -2653,7 +2646,7 @@ static LRESULT PROPSHEET_IndexToId(HWND hwndDlg, int iPageIndex)
         WARN("%d out of range.\n", iPageIndex);
 	return 0;
     }
-    psp = (LPCPROPSHEETPAGEW)psInfo->proppage[iPageIndex].hpage;
+    psp = &psInfo->proppage[iPageIndex].hpage->psp;
     if (psp->dwFlags & PSP_DLGINDIRECT || !IS_INTRESOURCE(psp->u.pszTemplate)) {
         return 0;
     }
@@ -2713,7 +2706,7 @@ static void PROPSHEET_CleanUp(HWND hwndDlg)
 
   for (i = 0; i < psInfo->nPages; i++)
   {
-     PROPSHEETPAGEA* psp = (PROPSHEETPAGEA*)psInfo->proppage[i].hpage;
+     PROPSHEETPAGEW* psp = &psInfo->proppage[i].hpage->psp;
 
      /* Unsubclass the page dialog window */
      if((psInfo->ppshheader.dwFlags & (PSH_WIZARD97_NEW | PSH_WIZARD97_OLD)) &&
@@ -3100,28 +3093,28 @@ HPROPSHEETPAGE WINAPI CreatePropertySheetPageW(LPCPROPSHEETPAGEW lpPropSheetPage
  */
 BOOL WINAPI DestroyPropertySheetPage(HPROPSHEETPAGE hPropPage)
 {
-  PROPSHEETPAGEW *psp = (PROPSHEETPAGEW *)hPropPage;
+  PROPSHEETPAGEW *psp = &hPropPage->psp;
 
   if (!hPropPage)
      return FALSE;
 
   if ((psp->dwFlags & PSP_USECALLBACK) && psp->pfnCallback)
-     psp->pfnCallback(0, PSPCB_RELEASE, psp + 1);
+     psp->pfnCallback(0, PSPCB_RELEASE, &hPropPage->callback_psp);
 
   if (!(psp->dwFlags & PSP_DLGINDIRECT) && !IS_INTRESOURCE( psp->u.pszTemplate ))
-     Free ((LPVOID)psp->u.pszTemplate);
+     Free((void*)psp->u.pszTemplate);
 
   if ((psp->dwFlags & PSP_USEICONID) && !IS_INTRESOURCE( psp->u2.pszIcon ))
-     Free ((LPVOID)psp->u2.pszIcon);
+     Free((void*)psp->u2.pszIcon);
 
   if ((psp->dwFlags & PSP_USETITLE) && !IS_INTRESOURCE( psp->pszTitle ))
-     Free ((LPVOID)psp->pszTitle);
+     Free((void*)psp->pszTitle);
 
   if ((psp->dwFlags & PSP_USEHEADERTITLE) && !IS_INTRESOURCE( psp->pszHeaderTitle ))
-     Free ((LPVOID)psp->pszHeaderTitle);
+     Free((void*)psp->pszHeaderTitle);
 
   if ((psp->dwFlags & PSP_USEHEADERSUBTITLE) && !IS_INTRESOURCE( psp->pszHeaderSubTitle ))
-     Free ((LPVOID)psp->pszHeaderSubTitle);
+     Free((void*)psp->pszHeaderSubTitle);
 
   Free(hPropPage);
 
@@ -3272,7 +3265,7 @@ static LRESULT PROPSHEET_Paint(HWND hwnd, HDC hdcParam)
     if (psInfo->active_page < 0)
         ppshpage = NULL;
     else
-        ppshpage = (LPCPROPSHEETPAGEW)psInfo->proppage[psInfo->active_page].hpage;
+        ppshpage = &psInfo->proppage[psInfo->active_page].hpage->psp;
 
     if ( (ppshpage && !(ppshpage->dwFlags & PSP_HIDEHEADER)) &&
 	 (psInfo->ppshheader.dwFlags & (PSH_WIZARD97_OLD | PSH_WIZARD97_NEW)) &&