/*
* CONVERT.CPP
*
* Implements the OleUIConvert function which invokes the complete
* Convert dialog.
*
* Copyright (c)1992 Microsoft Corporation, All Right Reserved
*/
#include "precomp.h"
#include "common.h"
#include <stdlib.h>
#include "utility.h"
#include "iconbox.h"
OLEDBGDATA
// Internally used structure
typedef struct tagCONVERT
{
// Keep this item first as the Standard* functions depend on it here.
LPOLEUICONVERT lpOCV; // Original structure passed.
UINT nIDD; // IDD of dialog (used for help info)
/*
* What we store extra in this structure besides the original caller's
* pointer are those fields that we need to modify during the life of
* the dialog but that we don't want to change in the original structure
* until the user presses OK.
*/
DWORD dwFlags; // Flags passed in
HWND hListVisible; // listbox that is currently visible
HWND hListInvisible; // listbox that is currently hidden
CLSID clsid; // Class ID sent in to dialog: IN only
DWORD dvAspect;
BOOL fCustomIcon;
UINT IconIndex; // index (in exe) of current icon
LPTSTR lpszIconSource; // path to current icon source
LPTSTR lpszCurrentObject;
LPTSTR lpszConvertDefault;
LPTSTR lpszActivateDefault;
} CONVERT, *PCONVERT, FAR *LPCONVERT;
// Internal function prototypes
// CONVERT.CPP
BOOL CALLBACK ConvertDialogProc(HWND, UINT, WPARAM, LPARAM);
BOOL FConvertInit(HWND hDlg, WPARAM, LPARAM);
void SetConvertResults(HWND, LPCONVERT);
UINT FillClassList(CLSID clsid, HWND hList, HWND hListInvisible,
LPTSTR FAR *lplpszCurrentClass, BOOL fIsLinkedObject, WORD wFormat,
UINT cClsidExclude, LPCLSID lpClsidExclude, BOOL bAddSameClass);
BOOL FormatIncluded(LPTSTR szStringToSearch, WORD wFormat);
void SwapWindows(HWND, HWND, HWND);
void ConvertCleanup(HWND hDlg, LPCONVERT lpCV);
static void UpdateClassIcon(HWND hDlg, LPCONVERT lpCV, HWND hList);
/*
* OleUIConvert
*
* Purpose:
* Invokes the standard OLE Change Type dialog box allowing the user
* to change the type of the single specified object, or change the
* type of all OLE objects of a specified type.
*
* Parameters:
* lpCV LPOLEUICONVERT pointing to the in-out structure
* for this dialog.
*
* Return Value:
* UINT One of the following codes, indicating success or error:
* OLEUI_SUCCESS Success
* OLEUI_ERR_STRUCTSIZE The dwStructSize value is wrong
*/
STDAPI_(UINT) OleUIConvert(LPOLEUICONVERT lpCV)
{
HGLOBAL hMemDlg = NULL;
UINT uRet = UStandardValidation((LPOLEUISTANDARD)lpCV, sizeof(OLEUICONVERT),
&hMemDlg);
if (OLEUI_SUCCESS != uRet)
return uRet;
if (lpCV->hMetaPict != NULL && !IsValidMetaPict(lpCV->hMetaPict))
{
return(OLEUI_CTERR_HMETAPICTINVALID);
}
if ((lpCV->dwFlags & CF_SETCONVERTDEFAULT)
&& (!IsValidClassID(lpCV->clsidConvertDefault)))
uRet = OLEUI_CTERR_CLASSIDINVALID;
if ((lpCV->dwFlags & CF_SETACTIVATEDEFAULT)
&& (!IsValidClassID(lpCV->clsidActivateDefault)))
uRet = OLEUI_CTERR_CLASSIDINVALID;
if ((lpCV->dvAspect != DVASPECT_ICON) && (lpCV->dvAspect != DVASPECT_CONTENT))
uRet = OLEUI_CTERR_DVASPECTINVALID;
if ((lpCV->wFormat >= CF_CLIPBOARDMIN) && (lpCV->wFormat <= CF_CLIPBOARDMAX))
{
TCHAR szTemp[8];
if (0 == GetClipboardFormatName(lpCV->wFormat, szTemp, 8))
uRet = OLEUI_CTERR_CBFORMATINVALID;
}
if ((NULL != lpCV->lpszUserType)
&& (IsBadReadPtr(lpCV->lpszUserType, 1)))
uRet = OLEUI_CTERR_STRINGINVALID;
if ( (NULL != lpCV->lpszDefLabel)
&& (IsBadReadPtr(lpCV->lpszDefLabel, 1)) )
uRet = OLEUI_CTERR_STRINGINVALID;
if (0 != lpCV->cClsidExclude &&
IsBadReadPtr(lpCV->lpClsidExclude, lpCV->cClsidExclude * sizeof(CLSID)))
{
uRet = OLEUI_IOERR_LPCLSIDEXCLUDEINVALID;
}
if (OLEUI_ERR_STANDARDMIN <= uRet)
{
return uRet;
}
UINT nIDD;
if (!bWin4)
nIDD = lpCV->dwFlags & CF_CONVERTONLY ? IDD_CONVERTONLY : IDD_CONVERT;
else
nIDD = lpCV->dwFlags & CF_CONVERTONLY ? IDD_CONVERTONLY4 : IDD_CONVERT4;
// Now that we've validated everything, we can invoke the dialog.
uRet = UStandardInvocation(ConvertDialogProc, (LPOLEUISTANDARD)lpCV,
hMemDlg, MAKEINTRESOURCE(nIDD));
return uRet;
}
/*
* ConvertDialogProc
*
* Purpose:
* Implements the OLE Convert dialog as invoked through the
* OleUIConvert function.
*
* Parameters:
* Standard
*
* Return Value:
* Standard
*
*/
BOOL CALLBACK ConvertDialogProc(HWND hDlg, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
// Declare Win16/Win32 compatible WM_COMMAND parameters.
COMMANDPARAMS(wID, wCode, hWndMsg);
// This will fail under WM_INITDIALOG, where we allocate it.
UINT uRet = 0;
LPCONVERT lpCV = (LPCONVERT)LpvStandardEntry(hDlg, iMsg, wParam, lParam, &uRet);
//If the hook processed the message, we're done.
if (0 != uRet)
return (BOOL)uRet;
//Process the temination message
if (iMsg == uMsgEndDialog)
{
EndDialog(hDlg, wParam);
return TRUE;
}
// Process help message from Change Icon
if (iMsg == uMsgHelp)
{
PostMessage(lpCV->lpOCV->hWndOwner, uMsgHelp, wParam, lParam);
return FALSE;
}
switch (iMsg)
{
case WM_DESTROY:
if (lpCV)
{
ConvertCleanup(hDlg, lpCV);
StandardCleanup(lpCV, hDlg);
}
break;
case WM_INITDIALOG:
FConvertInit(hDlg, wParam, lParam);
return TRUE;
case WM_COMMAND:
switch (wID)
{
case IDC_CV_ACTIVATELIST:
case IDC_CV_CONVERTLIST:
switch (wCode)
{
case LBN_SELCHANGE:
// Change "Results" window to reflect current selection
SetConvertResults(hDlg, lpCV);
// Update the icon we display, if in display as icon mode
if ((lpCV->dwFlags & CF_SELECTCONVERTTO) &&
lpCV->dvAspect == DVASPECT_ICON && !lpCV->fCustomIcon)
{
UpdateClassIcon(hDlg, lpCV, hWndMsg);
}
break;
case LBN_DBLCLK:
SendCommand(hDlg, IDOK, BN_CLICKED, hWndMsg);
break;
}
break;
case IDC_CV_CONVERTTO:
case IDC_CV_ACTIVATEAS:
{
HWND hList = lpCV->hListVisible;
HWND hListInvisible = lpCV->hListInvisible;
if (IDC_CV_CONVERTTO == wParam)
{
// User just click on the button again - it was
// already selected.
if (lpCV->dwFlags & CF_SELECTCONVERTTO)
break;
// If we're working with a linked object, don't
// add the activate list - just the object's
// class should appear in the listbox.
SwapWindows(hDlg, hList, hListInvisible);
lpCV->hListVisible = hListInvisible;
lpCV->hListInvisible = hList;
EnableWindow(lpCV->hListInvisible, FALSE);
EnableWindow(lpCV->hListVisible, TRUE);
// Update our flags.
lpCV->dwFlags &= ~CF_SELECTACTIVATEAS;
lpCV->dwFlags |= CF_SELECTCONVERTTO;
}
else
{
if (lpCV->dwFlags & CF_SELECTACTIVATEAS)
break;
SwapWindows(hDlg, hList, hListInvisible);
lpCV->hListVisible = hListInvisible;
lpCV->hListInvisible = hList;
EnableWindow(lpCV->hListInvisible, FALSE);
EnableWindow(lpCV->hListVisible, TRUE);
// Update our flags.
lpCV->dwFlags |= CF_SELECTACTIVATEAS;
lpCV->dwFlags &= ~CF_SELECTCONVERTTO;
}
LRESULT lRetVal;
if (lpCV->dwFlags & CF_SELECTCONVERTTO)
lRetVal = SendMessage(lpCV->hListVisible, LB_SELECTSTRING, (WPARAM)-1, (LPARAM)lpCV->lpszConvertDefault);
else
lRetVal = SendMessage(lpCV->hListVisible, LB_SELECTSTRING, (WPARAM)-1, (LPARAM)lpCV->lpszActivateDefault);
if (LB_ERR == lRetVal)
{
TCHAR szCurrentObject[40];
GetDlgItemText(hDlg, IDC_CV_OBJECTTYPE, szCurrentObject, 40);
SendMessage(lpCV->hListVisible, LB_SELECTSTRING, (WPARAM)-1, (LPARAM)szCurrentObject);
}
// Turn updates back on.
SendMessage(hDlg, WM_SETREDRAW, TRUE, 0L);
InvalidateRect(lpCV->hListVisible, NULL, TRUE);
UpdateWindow(lpCV->hListVisible);
if ((lpCV->dvAspect & DVASPECT_ICON) && (lpCV->dwFlags & CF_SELECTCONVERTTO))
UpdateClassIcon(hDlg, lpCV, lpCV->hListVisible);
// Hide the icon stuff when Activate is selected...show
// it again when Convert is selected.
BOOL fState = ((lpCV->dwFlags & CF_SELECTACTIVATEAS) ||
(lpCV->dwFlags & CF_DISABLEDISPLAYASICON)) ?
SW_HIDE : SW_SHOW;
StandardShowDlgItem(hDlg, IDC_CV_DISPLAYASICON, fState);
// Only display the icon if convert is selected AND
// display as icon is checked.
if ((SW_SHOW==fState) && (DVASPECT_ICON!=lpCV->dvAspect))
fState = SW_HIDE;
StandardShowDlgItem(hDlg, IDC_CV_CHANGEICON, fState);
StandardShowDlgItem(hDlg, IDC_CV_ICONDISPLAY, fState);
SetConvertResults(hDlg, lpCV);
}
break;
case IDOK:
{
// Set output flags to current ones
lpCV->lpOCV->dwFlags = lpCV->dwFlags;
// Update the dvAspect and fObjectsIconChanged members
// as appropriate.
if (lpCV->dwFlags & CF_SELECTACTIVATEAS)
{
// DON'T update aspect if activate as was selected.
lpCV->lpOCV->fObjectsIconChanged = FALSE;
}
else
lpCV->lpOCV->dvAspect = lpCV->dvAspect;
// Get the new clsid
TCHAR szBuffer[256];
LRESULT iCurSel = SendMessage(lpCV->hListVisible, LB_GETCURSEL, 0, 0);
SendMessage(lpCV->hListVisible, LB_GETTEXT, iCurSel, (LPARAM)szBuffer);
LPTSTR lpszCLSID = PointerToNthField(szBuffer, 2, '\t');
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszCLSID[OLEUI_CCHKEYMAX];
ATOW(wszCLSID, lpszCLSID, OLEUI_CCHKEYMAX);
CLSIDFromString(wszCLSID, (&(lpCV->lpOCV->clsidNew)));
#else
CLSIDFromString(lpszCLSID, (&(lpCV->lpOCV->clsidNew)));
#endif
// Free the hMetaPict we got in.
OleUIMetafilePictIconFree(lpCV->lpOCV->hMetaPict);
// Get the hMetaPict (if display as icon is checked)
if (DVASPECT_ICON == lpCV->dvAspect)
lpCV->lpOCV->hMetaPict = (HGLOBAL)SendDlgItemMessage(hDlg,
IDC_CV_ICONDISPLAY, IBXM_IMAGEGET, 0, 0L);
else
lpCV->lpOCV->hMetaPict = (HGLOBAL)NULL;
SendMessage(hDlg, uMsgEndDialog, OLEUI_OK, 0L);
}
break;
case IDCANCEL:
{
HGLOBAL hMetaPict = (HGLOBAL)SendDlgItemMessage(hDlg,
IDC_CV_ICONDISPLAY, IBXM_IMAGEGET, 0, 0L);
OleUIMetafilePictIconFree(hMetaPict);
SendMessage(hDlg, uMsgEndDialog, OLEUI_CANCEL, 0L);
}
break;
case IDC_OLEUIHELP:
PostMessage(lpCV->lpOCV->hWndOwner,
uMsgHelp, (WPARAM)hDlg, MAKELPARAM(IDD_CONVERT, 0));
break;
case IDC_CV_DISPLAYASICON:
{
BOOL fCheck = IsDlgButtonChecked(hDlg, wID);
if (fCheck)
lpCV->dvAspect = DVASPECT_ICON;
else
lpCV->dvAspect = DVASPECT_CONTENT;
if (fCheck && !lpCV->fCustomIcon)
UpdateClassIcon(hDlg, lpCV, lpCV->hListVisible);
// Show or hide the icon depending on the check state.
int i = (fCheck) ? SW_SHOWNORMAL : SW_HIDE;
StandardShowDlgItem(hDlg, IDC_CV_CHANGEICON, i);
StandardShowDlgItem(hDlg, IDC_CV_ICONDISPLAY, i);
SetConvertResults(hDlg, lpCV);
}
break;
case IDC_CV_CHANGEICON:
{
// Initialize the structure for the hook.
OLEUICHANGEICON ci; memset(&ci, 0, sizeof(ci));
ci.hMetaPict = (HGLOBAL)SendDlgItemMessage(hDlg,
IDC_CV_ICONDISPLAY, IBXM_IMAGEGET, 0, 0L);
ci.cbStruct = sizeof(ci);
ci.hWndOwner= hDlg;
ci.dwFlags = CIF_SELECTCURRENT;
// Only show help if we're showing it for this dialog.
if (lpCV->dwFlags & CF_SHOWHELPBUTTON)
ci.dwFlags |= CIF_SHOWHELP;
int iSel = (INT)SendMessage(lpCV->hListVisible, LB_GETCURSEL, 0, 0);
// Get whole string
LPTSTR pszString = (LPTSTR)OleStdMalloc(
OLEUI_CCHLABELMAX_SIZE + OLEUI_CCHCLSIDSTRING_SIZE);
SendMessage(lpCV->hListVisible, LB_GETTEXT, iSel, (LPARAM)pszString);
// Set pointer to CLSID (string)
LPTSTR pszCLSID = PointerToNthField(pszString, 2, '\t');
// Get the clsid to pass to change icon.
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszCLSID[OLEUI_CCHKEYMAX];
ATOW(wszCLSID, pszCLSID, OLEUI_CCHKEYMAX);
CLSIDFromString(wszCLSID, &(ci.clsid));
#else
CLSIDFromString(pszCLSID, &(ci.clsid));
#endif
OleStdFree(pszString);
// Let the hook in to customize Change Icon if desired.
uRet = UStandardHook(lpCV, hDlg, uMsgChangeIcon, 0, (LPARAM)&ci);
if (0 == uRet)
uRet= (OLEUI_OK == OleUIChangeIcon(&ci));
// Update the display if necessary.
if (0 != uRet)
{
SendDlgItemMessage(hDlg, IDC_CV_ICONDISPLAY, IBXM_IMAGESET, 0,
(LPARAM)ci.hMetaPict);
// Update our custom/default flag
if (ci.dwFlags & CIF_SELECTDEFAULT)
lpCV->fCustomIcon = FALSE; // we're in default mode (icon changes on each LB selchange)
else if (ci.dwFlags & CIF_SELECTFROMFILE)
lpCV->fCustomIcon = TRUE; // we're in custom mode (icon doesn't change)
// no change in fCustomIcon if user selected current
lpCV->lpOCV->fObjectsIconChanged = TRUE;
}
}
break;
}
break;
}
return FALSE;
}
/*
* FConvertInit
*
* Purpose:
* WM_INITIDIALOG handler for the Convert dialog box.
*
* Parameters:
* hDlg HWND of the dialog
* wParam WPARAM of the message
* lParam LPARAM of the message
*
* Return Value:
* BOOL Value to return for WM_INITDIALOG.
*/
BOOL FConvertInit(HWND hDlg, WPARAM wParam, LPARAM lParam)
{
// Copy the structure at lParam into our instance memory.
HFONT hFont; // non-bold version of dialog's font
LPCONVERT lpCV = (LPCONVERT)LpvStandardInit(hDlg, sizeof(CONVERT), &hFont);
// PvStandardInit send a termination to us already.
if (NULL == lpCV)
return FALSE;
LPOLEUICONVERT lpOCV = (LPOLEUICONVERT)lParam;
lpCV->lpOCV = lpOCV;
lpCV->nIDD = IDD_CONVERT;
lpCV->fCustomIcon = FALSE;
// Copy other information from lpOCV that we might modify.
lpCV->dwFlags = lpOCV->dwFlags;
lpCV->clsid = lpOCV->clsid;
lpCV->dvAspect = lpOCV->dvAspect;
lpCV->hListVisible = GetDlgItem(hDlg, IDC_CV_ACTIVATELIST);
lpCV->hListInvisible = GetDlgItem(hDlg, IDC_CV_CONVERTLIST);
OleDbgAssert(lpCV->hListInvisible != NULL);
lpCV->lpszCurrentObject = lpOCV->lpszUserType;
lpOCV->clsidNew = CLSID_NULL;
lpOCV->fObjectsIconChanged = FALSE;
lpCV->lpszConvertDefault = (LPTSTR)OleStdMalloc(OLEUI_CCHLABELMAX_SIZE);
lpCV->lpszActivateDefault = (LPTSTR)OleStdMalloc(OLEUI_CCHLABELMAX_SIZE);
lpCV->lpszIconSource = (LPTSTR)OleStdMalloc(MAX_PATH_SIZE);
// If we got a font, send it to the necessary controls.
if (NULL != hFont)
{
SendDlgItemMessage(hDlg, IDC_CV_OBJECTTYPE, WM_SETFONT, (WPARAM)hFont, 0L);
SendDlgItemMessage(hDlg, IDC_CV_RESULTTEXT, WM_SETFONT, (WPARAM)hFont, 0L);
}
// Hide the help button if necessary
if (!(lpCV->dwFlags & CF_SHOWHELPBUTTON))
StandardShowDlgItem(hDlg, IDC_OLEUIHELP, SW_HIDE);
// Show or hide the Change icon button
if (lpCV->dwFlags & CF_HIDECHANGEICON)
DestroyWindow(GetDlgItem(hDlg, IDC_CV_CHANGEICON));
// Fill the Object Type listbox with entries from the reg DB.
UINT nRet = FillClassList(lpOCV->clsid, lpCV->hListVisible,
lpCV->hListInvisible, &(lpCV->lpszCurrentObject),
lpOCV->fIsLinkedObject, lpOCV->wFormat,
lpOCV->cClsidExclude, lpOCV->lpClsidExclude,
!(lpCV->dwFlags & CF_CONVERTONLY));
if (nRet == -1)
{
// bring down dialog if error when filling list box
PostMessage(hDlg, uMsgEndDialog, OLEUI_ERR_LOADSTRING, 0L);
}
// Set the name of the current object.
SetDlgItemText(hDlg, IDC_CV_OBJECTTYPE, lpCV->lpszCurrentObject);
// Disable the "Activate As" button if the Activate list doesn't
// have any objects in it.
int cItemsActivate = (INT)SendMessage(lpCV->hListVisible, LB_GETCOUNT, 0, 0L);
if (1 >= cItemsActivate || (lpCV->dwFlags & CF_DISABLEACTIVATEAS))
StandardEnableDlgItem(hDlg, IDC_CV_ACTIVATEAS, FALSE);
// Set the tab width in the list to push all the tabs off the side.
RECT rect;
if (lpCV->hListVisible != NULL)
GetClientRect(lpCV->hListVisible, &rect);
else
GetClientRect(lpCV->hListInvisible, &rect);
DWORD dw = GetDialogBaseUnits();
rect.right = (8*rect.right)/LOWORD(dw); //Convert pixels to 2x dlg units.
if (lpCV->hListVisible != NULL)
SendMessage(lpCV->hListVisible, LB_SETTABSTOPS, 1, (LPARAM)(LPINT)(&rect.right));
SendMessage(lpCV->hListInvisible, LB_SETTABSTOPS, 1, (LPARAM)(LPINT)(&rect.right));
// Make sure that either "Convert To" or "Activate As" is selected
// and initialize listbox contents and selection accordingly
if (lpCV->dwFlags & CF_SELECTACTIVATEAS)
{
// Don't need to adjust listbox here because FillClassList
// initializes to the "Activate As" state.
CheckRadioButton(hDlg, IDC_CV_CONVERTTO, IDC_CV_ACTIVATEAS, IDC_CV_ACTIVATEAS);
// Hide the icon stuff when Activate is selected...it gets shown
// again when Convert is selected.
StandardShowDlgItem(hDlg, IDC_CV_DISPLAYASICON, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_CV_CHANGEICON, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_CV_ICONDISPLAY, SW_HIDE);
}
else
{
// Default case. If user hasn't selected either flag, we will
// come here anyway.
// swap listboxes.
HWND hWndTemp = lpCV->hListVisible;
if (lpCV->dwFlags & CF_DISABLEDISPLAYASICON)
{
StandardShowDlgItem(hDlg, IDC_CV_DISPLAYASICON, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_CV_CHANGEICON, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_CV_ICONDISPLAY, SW_HIDE);
}
lpCV->dwFlags |= CF_SELECTCONVERTTO; // Make sure flag is set
if (!(lpCV->dwFlags & CF_CONVERTONLY))
CheckRadioButton(hDlg, IDC_CV_CONVERTTO, IDC_CV_ACTIVATEAS, IDC_CV_CONVERTTO);
SwapWindows(hDlg, lpCV->hListVisible, lpCV->hListInvisible);
lpCV->hListVisible = lpCV->hListInvisible;
lpCV->hListInvisible = hWndTemp;
if (lpCV->hListInvisible)
EnableWindow(lpCV->hListInvisible, FALSE);
EnableWindow(lpCV->hListVisible, TRUE);
}
// Initialize Default strings.
// Default convert string is easy...just user the user type name from
// the clsid we got, or the current object
if ((lpCV->dwFlags & CF_SETCONVERTDEFAULT)
&& (IsValidClassID(lpCV->lpOCV->clsidConvertDefault)))
{
LPOLESTR lpszTemp = NULL;
if (OleRegGetUserType(lpCV->lpOCV->clsidConvertDefault, USERCLASSTYPE_FULL,
&lpszTemp) == NOERROR)
{
#if defined(WIN32) && !defined(UNICODE)
WTOA(lpCV->lpszConvertDefault, lpszTemp, OLEUI_CCHLABELMAX);
#else
lstrcpyn(lpCV->lpszConvertDefault, lpszTemp, OLEUI_CCHLABELMAX);
#endif
OleStdFree(lpszTemp);
}
else
{
lstrcpy(lpCV->lpszConvertDefault, lpCV->lpszCurrentObject);
}
}
else
lstrcpy(lpCV->lpszConvertDefault, lpCV->lpszCurrentObject);
// Default activate is a bit trickier. We want to use the user type
// name if from the clsid we got (assuming we got one), or the current
// object if it fails or we didn't get a clsid. But...if there's a
// Treat As entry in the reg db, then we use that instead. So... the
// logic boils down to this:
//
// if ("Treat As" in reg db)
// use it;
// else
// if (CF_SETACTIVATEDEFAULT)
// use it;
// else
// use current object;
HKEY hKey;
LONG lRet = RegOpenKey(HKEY_CLASSES_ROOT, TEXT("CLSID"), &hKey);
if (lRet != ERROR_SUCCESS)
goto CheckInputFlag;
LPOLESTR lpszCLSID;
StringFromCLSID(lpCV->lpOCV->clsid, &lpszCLSID);
TCHAR szKey[OLEUI_CCHKEYMAX];
#if defined(WIN32) && !defined(UNICODE)
WTOA(szKey, lpszCLSID, OLEUI_CCHKEYMAX);
#else
lstrcpy(szKey, lpszCLSID);
#endif
lstrcat(szKey, TEXT("\\TreatAs"));
OleStdFree(lpszCLSID);
TCHAR szValue[OLEUI_CCHKEYMAX];
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, szKey, szValue, (LONG*)&dw);
CLSID clsid;
if (lRet != ERROR_SUCCESS)
{
RegCloseKey(hKey);
goto CheckInputFlag;
}
else
{
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszValue[OLEUI_CCHKEYMAX];
ATOW(wszValue,szValue,OLEUI_CCHKEYMAX);
CLSIDFromString(wszValue, &clsid);
#else
CLSIDFromString(szValue, &clsid);
#endif
LPOLESTR lpszTemp = NULL;
if (OleRegGetUserType(clsid, USERCLASSTYPE_FULL, &lpszTemp) == NOERROR)
{
#if defined(WIN32) && !defined(UNICODE)
WTOA(lpCV->lpszActivateDefault, lpszTemp, OLEUI_CCHLABELMAX);
#else
lstrcpyn(lpCV->lpszActivateDefault, lpszTemp, OLEUI_CCHLABELMAX);
#endif
OleStdFree(lpszTemp);
}
else
{
RegCloseKey(hKey);
goto CheckInputFlag;
}
}
RegCloseKey(hKey);
goto SelectStringInListbox;
CheckInputFlag:
if ((lpCV->dwFlags & CF_SETACTIVATEDEFAULT)
&& (IsValidClassID(lpCV->lpOCV->clsidActivateDefault)))
{
LPOLESTR lpszTemp = NULL;
if (OleRegGetUserType(lpCV->lpOCV->clsidActivateDefault, USERCLASSTYPE_FULL,
&lpszTemp) == NOERROR)
{
#if defined(WIN32) && !defined(UNICODE)
WTOA(lpCV->lpszActivateDefault, lpszTemp, OLEUI_CCHLABELMAX);
#else
lstrcpyn(lpCV->lpszActivateDefault, lpszTemp, OLEUI_CCHLABELMAX);
#endif
OleStdFree(lpszTemp);
}
else
{
lstrcpy(lpCV->lpszActivateDefault, lpCV->lpszCurrentObject);
}
}
else
lstrcpy((lpCV->lpszActivateDefault), lpCV->lpszCurrentObject);
SelectStringInListbox:
if (lpCV->dwFlags & CF_SELECTCONVERTTO)
lRet = SendMessage(lpCV->hListVisible, LB_SELECTSTRING, (WPARAM)-1, (LPARAM)lpCV->lpszConvertDefault);
else
lRet = SendMessage(lpCV->hListVisible, LB_SELECTSTRING, (WPARAM)-1, (LPARAM)lpCV->lpszActivateDefault);
if (LB_ERR == lRet)
SendMessage(lpCV->hListVisible, LB_SETCURSEL, (WPARAM)0, 0L);
if ((HGLOBAL)NULL != lpOCV->hMetaPict)
{
HGLOBAL hMetaPict = OleDuplicateData(lpOCV->hMetaPict, CF_METAFILEPICT, NULL);
SendDlgItemMessage(hDlg, IDC_CV_ICONDISPLAY, IBXM_IMAGESET,
0, (LPARAM)hMetaPict);
lpCV->fCustomIcon = TRUE;
}
else
{
UpdateClassIcon(hDlg, lpCV, lpCV->hListVisible);
}
// Initialize icon stuff
if (DVASPECT_ICON == lpCV->dvAspect )
{
SendDlgItemMessage(hDlg, IDC_CV_DISPLAYASICON, BM_SETCHECK, TRUE, 0L);
}
else
{
// Hide & disable icon stuff
StandardShowDlgItem(hDlg, IDC_CV_CHANGEICON, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_CV_ICONDISPLAY, SW_HIDE);
}
// Call the hook with lCustData in lParam
UStandardHook((LPVOID)lpCV, hDlg, WM_INITDIALOG, wParam, lpOCV->lCustData);
// Update results window
SetConvertResults(hDlg, lpCV);
// Update caption if lpszCaption was specified
if (lpCV->lpOCV->lpszCaption && !IsBadReadPtr(lpCV->lpOCV->lpszCaption, 1))
{
SetWindowText(hDlg, lpCV->lpOCV->lpszCaption);
}
return TRUE;
}
/*
* FillClassList
*
* Purpose:
* Enumerates available OLE object classes from the registration
* database that we can convert or activate the specified clsid from.
*
* Note that this function removes any prior contents of the listbox.
*
* Parameters:
* clsid Class ID for class to find convert classes for
* hList HWND to the listbox to fill.
* hListActivate HWND to invisible listbox that stores "activate as" list.
* lpszClassName LPSTR to put the (hr) class name of the clsid; we
* do it here since we've already got the reg db open.
* fIsLinkedObject BOOL is the original object a linked object
* wFormat WORD specifying the format of the original class.
* cClsidExclude UINT number of entries in exclude list
* lpClsidExclude LPCLSID array classes to exclude for list
*
* Return Value:
* UINT Number of strings added to the listbox, -1 on failure.
*/
UINT FillClassList(CLSID clsid, HWND hListActivate, HWND hListConvert,
LPTSTR FAR *lplpszCurrentClass, BOOL fIsLinkedObject,
WORD wFormat, UINT cClsidExclude, LPCLSID lpClsidExclude, BOOL bAddSameClass)
{
// Clean out the existing strings.
if (hListActivate)
SendMessage(hListActivate, LB_RESETCONTENT, 0, 0L);
OleDbgAssert(hListConvert != NULL);
SendMessage(hListConvert, LB_RESETCONTENT, 0, 0L);
// Open up the root key.
HKEY hKey;
LONG lRet = RegOpenKey(HKEY_CLASSES_ROOT, TEXT("CLSID"), &hKey);
if (ERROR_SUCCESS != lRet)
return (UINT)-1;
if (NULL == *lplpszCurrentClass)
{
#if defined(WIN32) && !defined(UNICODE)
LPOLESTR wszCurrentClass;
if (OleRegGetUserType(clsid, USERCLASSTYPE_FULL, &wszCurrentClass) != NOERROR)
#else
if (OleRegGetUserType(clsid, USERCLASSTYPE_FULL, lplpszCurrentClass) != NOERROR)
#endif
{
*lplpszCurrentClass = OleStdLoadString(_g_hOleStdResInst, IDS_PSUNKNOWNTYPE);
if (*lplpszCurrentClass == NULL)
{
RegCloseKey(hKey);
return (UINT)-1;
}
}
#if defined(WIN32) && !defined(UNICODE)
else
{
UINT uLen = WTOALEN(wszCurrentClass);
*lplpszCurrentClass = (LPTSTR)OleStdMalloc(uLen);
if (NULL == *lplpszCurrentClass)
{
RegCloseKey(hKey);
OleStdFree(wszCurrentClass);
return (UINT)-1;
}
WTOA(*lplpszCurrentClass, wszCurrentClass, uLen);
OleStdFree(wszCurrentClass);
}
#endif
}
// Get the class name of the original class.
LPTSTR lpszCLSID;
#if defined(WIN32) && !defined(UNICODE)
// This code does not report allocation errors because neither did
// the original code before I extended it to support 32-bit ANSI builds.
// (NOTE that the result of StringFromCLSID is never checked against
// NULL after the #else case below, which contains the original code.)
// In any event, if OleStdMalloc returns NULL, then the string will
// simply be lost. Technically an error, but not a fatal one.
LPOLESTR wszCLSID;
StringFromCLSID(clsid, &wszCLSID);
lpszCLSID = NULL;
if (NULL != wszCLSID)
{
UINT uLen = WTOALEN(wszCLSID);
lpszCLSID = (LPTSTR) OleStdMalloc(uLen);
if (NULL != lpszCLSID)
{
WTOA(lpszCLSID, wszCLSID, uLen);
}
OleStdFree(wszCLSID);
}
#else
StringFromCLSID(clsid, &lpszCLSID);
#endif
// Here, we step through the entire registration db looking for
// class that can read or write the original class' format. We
// maintain two lists - an activate list and a convert list. The
// activate list is a subset of the convert list - activate == read/write
// and convert == read. We swap the listboxes as needed with
// SwapWindows, and keep track of which is which in the lpCV structure.
// Every item has the following format:
//
// Class Name\tclsid\0
UINT cStrings = 0;
TCHAR szClass[OLEUI_CCHKEYMAX];
lRet = RegEnumKey(hKey, cStrings++, szClass, OLEUI_CCHKEYMAX_SIZE);
TCHAR szFormatKey[OLEUI_CCHKEYMAX];
TCHAR szFormat[OLEUI_CCHKEYMAX];
TCHAR szHRClassName[OLEUI_CCHKEYMAX];
CLSID clsidForList;
while (ERROR_SUCCESS == lRet)
{
UINT j;
BOOL fExclude = FALSE;
//Check if this CLSID is in the exclusion list.
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszClass[OLEUI_CCHKEYMAX];
ATOW(wszClass, szClass, OLEUI_CCHKEYMAX);
CLSIDFromString(wszClass, &clsidForList);
#else
CLSIDFromString(szClass, &clsidForList);
#endif
for (j = 0; j < cClsidExclude; j++)
{
if (IsEqualCLSID(clsidForList, lpClsidExclude[j]))
{
fExclude=TRUE;
break;
}
}
if (fExclude)
goto Next; // don't add this class to list
// Check for a \Conversion\Readwritable\Main - if its
// readwriteable, then the class can be added to the ActivateAs
// list.
// NOTE: the presence of this key should NOT automatically be
// used to add the class to the CONVERT list.
lstrcpy(szFormatKey, szClass);
lstrcat(szFormatKey, TEXT("\\Conversion\\Readwritable\\Main"));
DWORD dw; dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, szFormatKey, szFormat, (LONG*)&dw);
if (ERROR_SUCCESS == lRet && FormatIncluded(szFormat, wFormat))
{
// Here, we've got a list of formats that this class can read
// and write. We need to see if the original class' format is
// in this list. We do that by looking for wFormat in
// szFormat - if it in there, then we add this class to the
// ACTIVATEAS list only. we do NOT automatically add it to the
// CONVERT list. Readable and Readwritable format lists should
// be handled separately.
dw=OLEUI_CCHKEYMAX_SIZE;
lRet=RegQueryValue(hKey, szClass, szHRClassName, (LONG*)&dw);
if (ERROR_SUCCESS == lRet && hListActivate != NULL)
{
// only add if not already in list
lstrcat(szHRClassName, TEXT("\t"));
if (LB_ERR == SendMessage(hListActivate, LB_FINDSTRING, 0, (LPARAM)szHRClassName))
{
lstrcat(szHRClassName, szClass);
SendMessage(hListActivate, LB_ADDSTRING, 0, (DWORD)szHRClassName);
}
}
}
// Here we'll check to see if the original class' format is in the
// readable list. if so, we will add the class to the CONVERTLIST
// We've got a special case for a linked object here.
// If an object is linked, then the only class that
// should appear in the convert list is the object's
// class. So, here we check to see if the object is
// linked. If it is, then we compare the classes. If
// they aren't the same, then we just go to the next key.
if (!fIsLinkedObject || lstrcmp(lpszCLSID, szClass) == 0)
{
//Check for a \Conversion\Readable\Main entry
lstrcpy(szFormatKey, szClass);
lstrcat(szFormatKey, TEXT("\\Conversion\\Readable\\Main"));
// Check to see if this class can read the original class
// format. If it can, add the string to the listbox as
// CONVERT_LIST.
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, szFormatKey, szFormat, (LONG*)&dw);
if (ERROR_SUCCESS == lRet && FormatIncluded(szFormat, wFormat))
{
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, szClass, szHRClassName, (LONG*)&dw);
if (ERROR_SUCCESS == lRet)
{
// only add if not already in list
lstrcat(szHRClassName, TEXT("\t"));
if (LB_ERR == SendMessage(hListConvert, LB_FINDSTRING, 0, (LPARAM)szHRClassName))
{
lstrcat(szHRClassName, szClass);
SendMessage(hListConvert, LB_ADDSTRING, 0, (DWORD)szHRClassName);
}
}
}
}
Next:
//Continue with the next key.
lRet = RegEnumKey(hKey, cStrings++, szClass, OLEUI_CCHKEYMAX_SIZE);
} // end while
// If the original class isn't already in the list, add it.
if (bAddSameClass)
{
lstrcpy(szHRClassName, *lplpszCurrentClass);
lstrcat(szHRClassName, TEXT("\t"));
lstrcat(szHRClassName, lpszCLSID);
if (hListActivate != NULL)
{
// only add it if it's not there already.
lRet = SendMessage(hListActivate, LB_FINDSTRING, (WPARAM)-1, (LPARAM)szHRClassName);
if (LB_ERR == lRet)
SendMessage(hListActivate, LB_ADDSTRING, 0, (LPARAM)szHRClassName);
}
// only add it if it's not there already.
lRet = SendMessage(hListConvert, LB_FINDSTRING, (WPARAM)-1, (LPARAM)szHRClassName);
if (LB_ERR == lRet)
SendMessage(hListConvert, LB_ADDSTRING, 0, (LPARAM)szHRClassName);
}
// Free the string we got from StringFromCLSID.
OleStdFree(lpszCLSID);
RegCloseKey(hKey);
return cStrings; // return # of strings added
}
/*
* OleUICanConvertOrActivateAs
*
* Purpose:
* Determine if there is any OLE object class from the registration
* database that we can convert or activate the specified clsid from.
*
* Parameters:
* rClsid REFCLSID Class ID for class to find convert classes for
* fIsLinkedObject BOOL is the original object a linked object
* wFormat WORD specifying the format of the original class.
*
* Return Value:
* BOOL TRUE if Convert command should be enabled, else FALSE
*/
STDAPI_(BOOL) OleUICanConvertOrActivateAs(
REFCLSID rClsid, BOOL fIsLinkedObject, WORD wFormat)
{
// Open up the root key.
HKEY hKey;
LONG lRet = RegOpenKey(HKEY_CLASSES_ROOT, TEXT("CLSID"), &hKey);
if (ERROR_SUCCESS != lRet)
return FALSE;
// Get the class name of the original class.
LPTSTR lpszCLSID;
#if defined(WIN32) && !defined(UNICODE)
// This code does not report allocation errors because neither did
// the original code before I extended it to support 32-bit ANSI builds.
// In any event, if OleStdMalloc returns NULL, then the string will
// simply be lost. Technically an error, but not a fatal one.
// Since this routine has no way to report errors anyway (a design flaw
// IMHO) I consider this to be marginally acceptable.
LPOLESTR wszCLSID;
StringFromCLSID(rClsid, &wszCLSID);
lpszCLSID = NULL;
if (NULL != wszCLSID)
{
UINT uLen = WTOALEN(wszCLSID);
lpszCLSID = (LPTSTR) OleStdMalloc(uLen);
if (NULL != lpszCLSID)
{
WTOA(lpszCLSID, wszCLSID, uLen);
}
OleStdFree(wszCLSID);
}
#else
StringFromCLSID(rClsid, &lpszCLSID);
#endif
// Here, we step through the entire registration db looking for
// class that can read or write the original class' format.
// This loop stops if a single class is found.
UINT cStrings = 0;
TCHAR szClass[OLEUI_CCHKEYMAX];
lRet = RegEnumKey(hKey, cStrings++, szClass, OLEUI_CCHKEYMAX_SIZE);
TCHAR szFormatKey[OLEUI_CCHKEYMAX];
TCHAR szFormat[OLEUI_CCHKEYMAX];
TCHAR szHRClassName[OLEUI_CCHKEYMAX];
BOOL fEnableConvert = FALSE;
while (ERROR_SUCCESS == lRet)
{
if (lstrcmp(lpszCLSID, szClass) == 0)
goto next; // we don't want to consider the source class
// Check for a \Conversion\ReadWriteable\Main entry first - if its
// readwriteable, then we don't need to bother checking to see if
// its readable.
lstrcpy(szFormatKey, szClass);
lstrcat(szFormatKey, TEXT("\\Conversion\\Readwritable\\Main"));
DWORD dw; dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, szFormatKey, szFormat, (LONG*)&dw);
if (ERROR_SUCCESS != lRet)
{
// Try \\DataFormats\DefaultFile too
lstrcpy(szFormatKey, szClass);
lstrcat(szFormatKey, TEXT("\\DataFormats\\DefaultFile"));
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, szFormatKey, szFormat, (LONG*)&dw);
}
if (ERROR_SUCCESS == lRet && FormatIncluded(szFormat, wFormat))
{
// Here, we've got a list of formats that this class can read
// and write. We need to see if the original class' format is
// in this list. We do that by looking for wFormat in
// szFormat - if it in there, then we add this class to the
// both lists and continue. If not, then we look at the
// class' readable formats.
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, szClass, szHRClassName, (LONG*)&dw);
if (ERROR_SUCCESS == lRet)
{
fEnableConvert = TRUE;
break; // STOP -- found one!
}
}
// We either didn't find the readwritable key, or the
// list of readwritable formats didn't include the
// original class format. So, here we'll check to
// see if its in the readable list.
// We've got a special case for a linked object here.
// If an object is linked, then the only class that
// should appear in the convert list is the object's
// class. So, here we check to see if the object is
// linked. If it is, then we compare the classes. If
// they aren't the same, then we just go to the next key.
else if (!fIsLinkedObject || lstrcmp(lpszCLSID, szClass) == 0)
{
// Check for a \Conversion\Readable\Main entry
lstrcpy(szFormatKey, szClass);
lstrcat(szFormatKey, TEXT("\\Conversion\\Readable\\Main"));
// Check to see if this class can read the original class format.
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, szFormatKey, szFormat, (LONG*)&dw);
if (ERROR_SUCCESS == lRet && FormatIncluded(szFormat, wFormat))
{
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, szClass, szHRClassName, (LONG*)&dw);
if (ERROR_SUCCESS == lRet)
{
fEnableConvert = TRUE;
break; // STOP -- found one!
}
}
}
next:
// Continue with the next key.
lRet = RegEnumKey(hKey, cStrings++, szClass, OLEUI_CCHKEYMAX_SIZE);
}
// Free the string we got from StringFromCLSID.
OleStdFree(lpszCLSID);
RegCloseKey(hKey);
return fEnableConvert;
}
/*
* FormatIncluded
*
* Purpose:
* Parses the string for format from the word.
*
* Parameters:
* szStringToSearch String to parse
* wFormat format to find
*
* Return Value:
* BOOL TRUE if format is found in string,
* FALSE otherwise.
*/
BOOL FormatIncluded(LPTSTR szStringToSearch, WORD wFormat)
{
TCHAR szFormat[255];
if (wFormat < 0xC000)
wsprintf(szFormat, TEXT("%d"), wFormat);
else
GetClipboardFormatName(wFormat, szFormat, 255);
LPTSTR lpToken = szStringToSearch;
while (lpToken != NULL)
{
LPTSTR lpTokenNext = FindChar(lpToken, TEXT(','));
if (lpTokenNext != NULL)
{
*lpTokenNext = 0;
++lpTokenNext;
}
if (0 == lstrcmpi(lpToken, szFormat))
return TRUE;
lpToken = lpTokenNext;
}
return FALSE;
}
/*
* UpdateClassIcon
*
* Purpose:
* Handles LBN_SELCHANGE for the Object Type listbox. On a selection
* change, we extract an icon from the server handling the currently
* selected object type using the utility function HIconFromClass.
* Note that we depend on the behavior of FillClassList to stuff the
* object class after a tab in the listbox string that we hide from
* view (see WM_INITDIALOG).
*
* Parameters
* hDlg HWND of the dialog box.
* lpCV LPCONVERT pointing to the dialog structure
* hList HWND of the Object Type listbox.
*
* Return Value:
* None
*/
static void UpdateClassIcon(HWND hDlg, LPCONVERT lpCV, HWND hList)
{
if (GetDlgItem(hDlg, IDC_CV_ICONDISPLAY) == NULL)
return;
// Get current selection in the list box
int iSel= (UINT)SendMessage(hList, LB_GETCURSEL, 0, 0L);
if (LB_ERR == iSel)
return;
// Allocate a string to hold the entire listbox string
DWORD cb = SendMessage(hList, LB_GETTEXTLEN, iSel, 0L);
LPTSTR pszName = (LPTSTR)OleStdMalloc((cb+1) * sizeof(TCHAR));
if (pszName == NULL)
return;
// Get whole string
SendMessage(hList, LB_GETTEXT, iSel, (LPARAM)pszName);
// Set pointer to CLSID (string)
LPTSTR pszCLSID = PointerToNthField(pszName, 2, '\t');
// Create the class ID with this string.
CLSID clsid;
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszCLSID[OLEUI_CCHKEYMAX];
ATOW(wszCLSID, pszCLSID, OLEUI_CCHKEYMAX);
CLSIDFromString(wszCLSID, &clsid);
#else
CLSIDFromString(pszCLSID, &clsid);
#endif
// Get Icon for that CLSID
HGLOBAL hMetaPict = OleGetIconOfClass(clsid, NULL, TRUE);
// Replace current icon with the new one.
SendDlgItemMessage(hDlg, IDC_CV_ICONDISPLAY, IBXM_IMAGESET, 1,
(LPARAM)hMetaPict);
OleStdFree(pszName);
}
/*
* SetConvertResults
*
* Purpose:
* Centralizes setting of the Result display in the Convert
* dialog. Handles loading the appropriate string from the module's
* resources and setting the text, displaying the proper result picture,
* and showing the proper icon.
*
* Parameters:
* hDlg HWND of the dialog box so we can access controls.
* lpCV LPCONVERT in which we assume that the dwFlags is
* set to the appropriate radio button selection, and
* the list box has the appropriate class selected.
*
* Return Value:
* None
*/
void SetConvertResults(HWND hDlg, LPCONVERT lpCV)
{
HWND hList = lpCV->hListVisible;
/*
* We need scratch memory for loading the stringtable string, loading
* the object type from the listbox, loading the source object
* type, and constructing the final string. We therefore allocate
* four buffers as large as the maximum message length (512) plus
* the object type, guaranteeing that we have enough
* in all cases.
*/
UINT i = (UINT)SendMessage(hList, LB_GETCURSEL, 0, 0L);
UINT cch = 512+(UINT)SendMessage(hList, LB_GETTEXTLEN, i, 0L);
HGLOBAL hMem = GlobalAlloc(GHND, (DWORD)(4*cch)*sizeof(TCHAR));
if (NULL == hMem)
return;
LPTSTR lpszOutput = (LPTSTR)GlobalLock(hMem);
LPTSTR lpszSelObj = lpszOutput + cch;
LPTSTR lpszDefObj = lpszSelObj + cch;
LPTSTR lpszString = lpszDefObj + cch;
// Get selected object and null terminate human-readable name (1st field).
SendMessage(hList, LB_GETTEXT, i, (LPARAM)lpszSelObj);
LPTSTR pszT = PointerToNthField(lpszSelObj, 2, '\t');
pszT = CharPrev(lpszSelObj, pszT);
*pszT = '\0';
// Get default object
GetDlgItemText(hDlg, IDC_CV_OBJECTTYPE, lpszDefObj, 512);
//Default is an empty string.
*lpszOutput=0;
if (lpCV->dwFlags & CF_SELECTCONVERTTO)
{
if (lpCV->lpOCV->fIsLinkedObject) // working with linked object
LoadString(_g_hOleStdResInst, IDS_CVRESULTCONVERTLINK, lpszOutput, cch);
else
{
if (0 !=lstrcmp(lpszDefObj, lpszSelObj))
{
// converting to a new class
if (0 != LoadString(_g_hOleStdResInst, IDS_CVRESULTCONVERTTO, lpszString, cch))
FormatString2(lpszOutput, lpszString, lpszDefObj, lpszSelObj);
}
else
{
// converting to the same class (no conversion)
if (0 != LoadString(_g_hOleStdResInst, IDS_CVRESULTNOCHANGE, lpszString, cch))
wsprintf(lpszOutput, lpszString, lpszDefObj);
}
}
if (lpCV->dvAspect == DVASPECT_ICON) // Display as icon is checked
{
if (0 != LoadString(_g_hOleStdResInst, IDS_CVRESULTDISPLAYASICON, lpszString, cch))
lstrcat(lpszOutput, lpszString);
}
}
if (lpCV->dwFlags & CF_SELECTACTIVATEAS)
{
if (0 != LoadString(_g_hOleStdResInst, IDS_CVRESULTACTIVATEAS, lpszString, cch))
FormatString2(lpszOutput, lpszString, lpszDefObj, lpszSelObj);
// activating as a new class
if (0 != lstrcmp(lpszDefObj, lpszSelObj))
{
if (0 != LoadString(_g_hOleStdResInst, IDS_CVRESULTACTIVATEDIFF, lpszString, cch))
lstrcat(lpszOutput, lpszString);
}
else // activating as itself.
{
lstrcat(lpszOutput, TEXT("."));
}
}
// If LoadString failed, we simply clear out the results (*lpszOutput=0 above)
SetDlgItemText(hDlg, IDC_CV_RESULTTEXT, lpszOutput);
GlobalUnlock(hMem);
GlobalFree(hMem);
}
/*
* ConvertCleanup
*
* Purpose:
* Performs convert-specific cleanup before Convert termination.
*
* Parameters:
* hDlg HWND of the dialog box so we can access controls.
*
* Return Value:
* None
*/
void ConvertCleanup(HWND hDlg, LPCONVERT lpCV)
{
// Free our strings. Zero out the user type name string
// the the calling app doesn't free to it.
OleStdFree((LPVOID)lpCV->lpszConvertDefault);
OleStdFree((LPVOID)lpCV->lpszActivateDefault);
OleStdFree((LPVOID)lpCV->lpszIconSource);
if (lpCV->lpOCV->lpszUserType)
{
OleStdFree((LPVOID)lpCV->lpOCV->lpszUserType);
lpCV->lpOCV->lpszUserType = NULL;
}
if (lpCV->lpOCV->lpszDefLabel)
{
OleStdFree((LPVOID)lpCV->lpOCV->lpszDefLabel);
lpCV->lpOCV->lpszDefLabel = NULL;
}
}
/*
* SwapWindows
*
* Purpose:
* Moves hWnd1 to hWnd2's position and hWnd2 to hWnd1's position.
* Does NOT change sizes.
*
* Parameters:
* hDlg HWND of the dialog box so we can turn redraw off
*
* Return Value:
* None
*/
void SwapWindows(HWND hDlg, HWND hWnd1, HWND hWnd2)
{
if (hWnd1 != NULL && hWnd2 != NULL)
{
RECT rect1; GetWindowRect(hWnd1, &rect1);
ScreenToClient(hDlg, (LPPOINT)&rect1.left);
ScreenToClient(hDlg, (LPPOINT)&rect1.right);
RECT rect2; GetWindowRect(hWnd2, &rect2);
ScreenToClient(hDlg, (LPPOINT)&rect2.left);
ScreenToClient(hDlg, (LPPOINT)&rect2.right);
SetWindowPos(hWnd1, NULL,
rect2.left, rect2.top, 0, 0, SWP_NOZORDER | SWP_NOSIZE);
SetWindowPos(hWnd2, NULL,
rect1.left, rect1.top, 0, 0, SWP_NOZORDER | SWP_NOSIZE);
}
}
