finddlg32.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

         * the dialog is killed. We also need to remove the added prop.
         */
        if(iMsg == WM_DESTROY)
        {
        	RemovePropA(hDlgWnd, (LPSTR)COMDLG32_Atom);
        	HeapFree(GetProcessHeap(), 0, pdata);
        }

        return retval;
}

/***********************************************************************
 *	COMDLG32_FR_CheckPartial		[internal]
 * Check various fault conditions in the supplied parameters that
 * cause an extended error to be reported.
 *	RETURNS
 *		TRUE: Success
 *		FALSE: Failure
 */
static BOOL COMDLG32_FR_CheckPartial(
	const FINDREPLACEA *pfr,	/* [in] Find structure */
	BOOL Replace			/* [in] True if called as replace */
) {
	if(!pfr)
        {
        	COMDLG32_SetCommDlgExtendedError(CDERR_GENERALCODES);
                return FALSE;
	}

        if(pfr->lStructSize != sizeof(FINDREPLACEA))
        {
        	COMDLG32_SetCommDlgExtendedError(CDERR_STRUCTSIZE);
        	return FALSE;
        }

        if(!IsWindow(pfr->hwndOwner))
        {
        	COMDLG32_SetCommDlgExtendedError(CDERR_DIALOGFAILURE);
        	return FALSE;
        }

	if((pfr->wFindWhatLen < 1 || !pfr->lpstrFindWhat)
        ||(Replace && (pfr->wReplaceWithLen < 1 || !pfr->lpstrReplaceWith)))
        {
        	COMDLG32_SetCommDlgExtendedError(FRERR_BUFFERLENGTHZERO);
                return FALSE;
        }

	if((FindReplaceMessage = RegisterWindowMessageA(FINDMSGSTRINGA)) == 0)
        {
        	COMDLG32_SetCommDlgExtendedError(CDERR_REGISTERMSGFAIL);
                return FALSE;
        }
	if((HelpMessage = RegisterWindowMessageA(HELPMSGSTRINGA)) == 0)
        {
        	COMDLG32_SetCommDlgExtendedError(CDERR_REGISTERMSGFAIL);
                return FALSE;
        }

        if((pfr->Flags & FR_ENABLEHOOK) && !pfr->lpfnHook)
        {
        	COMDLG32_SetCommDlgExtendedError(CDERR_NOHOOK);
                return FALSE;
        }

        if((pfr->Flags & (FR_ENABLETEMPLATE | FR_ENABLETEMPLATEHANDLE)) && !pfr->hInstance)
        {
        	COMDLG32_SetCommDlgExtendedError(CDERR_NOHINSTANCE);
                return FALSE;
        }

        if((pfr->Flags & FR_ENABLETEMPLATE) && !pfr->lpTemplateName)
        {
        	COMDLG32_SetCommDlgExtendedError(CDERR_NOTEMPLATE);
                return FALSE;
        }

	return TRUE;
}

/***********************************************************************
 *	COMDLG32_FR_DoFindReplace		[internal]
 * Actual load and creation of the Find/Replace dialog.
 *	RETURNS
 *		Window handle to created dialog:Success
 *		NULL:Failure
 */
static HWND COMDLG32_FR_DoFindReplace(
	COMDLG32_FR_Data *pdata	/* [in] Internal data structure */
) {
	HWND hdlgwnd = 0;
        HGLOBAL loadrc;
        DWORD error;
        LPDLGTEMPLATEW rcs;

	TRACE("hInst=%p, Flags=%08x\n", pdata->fr.hInstance, pdata->fr.Flags);

        if(!(pdata->fr.Flags & FR_ENABLETEMPLATEHANDLE))
        {
	        HMODULE hmod = COMDLG32_hInstance;
		HRSRC htemplate;
        	if(pdata->fr.Flags & FR_ENABLETEMPLATE)
	        {
        		hmod = (HMODULE)pdata->fr.hInstance;
                        if(pdata->fr.Flags & FR_WINE_UNICODE)
                        {
				htemplate = FindResourceW(hmod, (LPCWSTR)pdata->fr.lpTemplateName, (LPWSTR)RT_DIALOG);
                        }
                        else
                        {
				htemplate = FindResourceA(hmod, pdata->fr.lpTemplateName, (LPCSTR)RT_DIALOG);
                        }
        	}
		else
        	{
			int rcid = pdata->fr.Flags & FR_WINE_REPLACE ? REPLACEDLGORD
								     : FINDDLGORD;
			htemplate = FindResourceA(hmod, MAKEINTRESOURCEA(rcid), (LPCSTR)RT_DIALOG);
		}
		if(!htemplate)
       	        {
                	error = CDERR_FINDRESFAILURE;
                       	goto cleanup;
               	}

	        loadrc = LoadResource(hmod, htemplate);
        }
        else
        {
        	loadrc = (HGLOBAL)pdata->fr.hInstance;
        }

        if(!loadrc)
        {
		error = CDERR_LOADRESFAILURE;
		goto cleanup;
	}

        if((rcs = (LPDLGTEMPLATEW)LockResource(loadrc)) == NULL)
        {
		error = CDERR_LOCKRESFAILURE;
		goto cleanup;
        }

        hdlgwnd = CreateDialogIndirectParamA(COMDLG32_hInstance,
        				     rcs,
                                             pdata->fr.hwndOwner,
                                             COMDLG32_FindReplaceDlgProc,
                                             (LPARAM)pdata);
	if(!hdlgwnd)
        {
        	error = CDERR_DIALOGFAILURE;
cleanup:
        	COMDLG32_SetCommDlgExtendedError(error);
                HeapFree(GetProcessHeap(), 0, pdata);
        }
        return hdlgwnd;
}

/***********************************************************************
 *	FindTextA 				[COMDLG32.@]
 *
 * See FindTextW.
 */
HWND WINAPI FindTextA(
	LPFINDREPLACEA pfr	/* [in] Find/replace structure*/
) {
	COMDLG32_FR_Data *pdata;

        TRACE("LPFINDREPLACE=%p\n", pfr);

	if(!COMDLG32_FR_CheckPartial(pfr, FALSE))
        	return 0;

	if((pdata = (COMDLG32_FR_Data *)COMDLG32_AllocMem(sizeof(COMDLG32_FR_Data))) == NULL)
        	return 0; /* Error has been set */

        pdata->user_fr.fra = pfr;
        pdata->fr = *pfr;
	return COMDLG32_FR_DoFindReplace(pdata);
}

/***********************************************************************
 *	ReplaceTextA 				[COMDLG32.@]
 *
 * See ReplaceTextW.
 */
HWND WINAPI ReplaceTextA(
	LPFINDREPLACEA pfr	/* [in] Find/replace structure*/
) {
	COMDLG32_FR_Data *pdata;

        TRACE("LPFINDREPLACE=%p\n", pfr);

	if(!COMDLG32_FR_CheckPartial(pfr, TRUE))
        	return 0;

	if((pdata = (COMDLG32_FR_Data *)COMDLG32_AllocMem(sizeof(COMDLG32_FR_Data))) == NULL)
        	return 0; /* Error has been set */

        pdata->user_fr.fra = pfr;
        pdata->fr = *pfr;
	pdata->fr.Flags |= FR_WINE_REPLACE;
	return COMDLG32_FR_DoFindReplace(pdata);
}

/***********************************************************************
 *	FindTextW 				[COMDLG32.@]
 *
 * Create a modeless find-text dialog box.
 *
 *	RETURNS
 *		Window handle to created dialog: Success
 *		NULL: Failure
 */
HWND WINAPI FindTextW(
	LPFINDREPLACEW pfr	/* [in] Find/replace structure*/
) {
	COMDLG32_FR_Data *pdata;
        DWORD len;

        TRACE("LPFINDREPLACE=%p\n", pfr);

	if(!COMDLG32_FR_CheckPartial((LPFINDREPLACEA)pfr, FALSE))
        	return 0;

        len = WideCharToMultiByte( CP_ACP, 0, pfr->lpstrFindWhat, pfr->wFindWhatLen,
                                   NULL, 0, NULL, NULL );
        if((pdata = (COMDLG32_FR_Data *)COMDLG32_AllocMem(sizeof(COMDLG32_FR_Data) + len)) == NULL)
            return 0; /* Error has been set */

        pdata->user_fr.frw = pfr;
        pdata->fr = *(LPFINDREPLACEA)pfr;	/* FINDREPLACEx have same size */
	pdata->fr.Flags |= FR_WINE_UNICODE;
        pdata->fr.lpstrFindWhat = (LPSTR)(pdata + 1);  /* Set string pointer */
        WideCharToMultiByte( CP_ACP, 0, pfr->lpstrFindWhat, pfr->wFindWhatLen,
                             pdata->fr.lpstrFindWhat, len, NULL, NULL );
        return COMDLG32_FR_DoFindReplace(pdata);
}

/***********************************************************************
 *	ReplaceTextW 				[COMDLG32.@]
 *
 * Create a modeless replace-text dialog box.
 *
 *	RETURNS
 *		Window handle to created dialog: Success
 *		NULL: Failure
 */
HWND WINAPI ReplaceTextW(
	LPFINDREPLACEW pfr	/* [in] Find/replace structure*/
) {
	COMDLG32_FR_Data *pdata;
        DWORD len1, len2;

        TRACE("LPFINDREPLACE=%p\n", pfr);

	if(!COMDLG32_FR_CheckPartial((LPFINDREPLACEA)pfr, FALSE))
        	return 0;

        len1 = WideCharToMultiByte( CP_ACP, 0, pfr->lpstrFindWhat, pfr->wFindWhatLen,
                                    NULL, 0, NULL, NULL );
        len2 = WideCharToMultiByte( CP_ACP, 0, pfr->lpstrReplaceWith, pfr->wReplaceWithLen,
                                    NULL, 0, NULL, NULL );
	if((pdata = (COMDLG32_FR_Data *)COMDLG32_AllocMem(sizeof(COMDLG32_FR_Data)
                                                          + len1 + len2)) == NULL)
            return 0; /* Error has been set */

        pdata->user_fr.frw = pfr;
        pdata->fr = *(LPFINDREPLACEA)pfr;	/* FINDREPLACEx have same size */
	pdata->fr.Flags |= FR_WINE_REPLACE | FR_WINE_UNICODE;
        pdata->fr.lpstrFindWhat = (LPSTR)(pdata + 1);  /* Set string pointer */
        pdata->fr.lpstrReplaceWith = pdata->fr.lpstrFindWhat + len1;

        WideCharToMultiByte( CP_ACP, 0, pfr->lpstrFindWhat, pfr->wFindWhatLen,
                             pdata->fr.lpstrFindWhat, len1, NULL, NULL );
        WideCharToMultiByte( CP_ACP, 0, pfr->lpstrReplaceWith, pfr->wReplaceWithLen,
                             pdata->fr.lpstrReplaceWith, len2, NULL, NULL );
        return COMDLG32_FR_DoFindReplace(pdata);
}