/** FILE: util.c *********** Module Header ********************************
*
* Control panel utility library routines. This file contains string,
* cursor and SendWinIniChange() routines.
*
* History:
* 15:30 on Thur 25 Apr 1991 -by- Steve Cathcart [stevecat]
* Took base code from Win 3.1 source
* 10:30 on Tues 04 Feb 1992 -by- Steve Cathcart [stevecat]
* Updated code to latest Win 3.1 sources
* 15:30 on Thur 03 May 1994 -by- Steve Cathcart [stevecat]
* Increased MyMessageBox buffers, Restart dialog changes
*
* Copyright (C) 1990-1994 Microsoft Corporation
*
*************************************************************************/
//==========================================================================
// Include files
//==========================================================================
#include <nt.h> // For shutdown privilege.
#include <ntrtl.h>
#include <nturtl.h>
#include "main.h"
// C Runtime
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
BOOL APIENTRY WantArrows (HWND hWnd, UINT message, DWORD wParam, LONG lParam)
{
switch (message)
{
case WM_GETDLGCODE:
return DLGC_WANTARROWS | DLGC_WANTCHARS;
break;
case WM_KEYDOWN:
case WM_CHAR:
return (SendMessage (GetParent (hWnd), message, wParam, lParam));
break;
case WM_SETFOCUS:
case WM_KILLFOCUS:
return (SendMessage (GetParent(hWnd),
WM_USER + 0x0401 + message - WM_SETFOCUS,
wParam, (LPARAM) hWnd));
break;
default:
return (CallWindowProc (lpprocStatic, hWnd, message, wParam, lParam));
}
}
int MyMessageBox (HWND hWnd, DWORD wText, DWORD wCaption, DWORD wType, ...)
{
TCHAR szText[4*PATHMAX], szCaption[2*PATHMAX];
int ival;
va_list parg;
va_start(parg, wType);
if (wText == INITS)
goto NoMem;
if (!LoadString (hModule, wText, szCaption, CharSizeOf(szCaption)))
goto NoMem;
wvsprintf (szText, szCaption, parg);
if (!LoadString (hModule, wCaption, szCaption, CharSizeOf(szCaption)))
goto NoMem;
if ((ival = MessageBox (hWnd, szText, szCaption, wType)) == 0)
goto NoMem;
va_end(parg);
return (ival);
NoMem:
va_end(parg);
ErrMemDlg (hWnd);
return 0;
}
/* This does what is necessary to bring up a dialog box
*/
int DoDialogBoxParam (int nDlg, HWND hParent, DLGPROC lpProc,
DWORD dwHelpContext, DWORD dwParam)
{
DWORD dwSave;
dwSave = dwContext;
dwContext = dwHelpContext;
nDlg = DialogBoxParam (hModule, (LPTSTR) MAKEINTRESOURCE(nDlg), hParent, lpProc, dwParam);
dwContext = dwSave;
if (nDlg == -1)
MyMessageBox (hParent, INITS, INITS+1, IDOK);
return(nDlg);
}
// Turn hourglass on or off
void HourGlass (BOOL bOn)
{
if (!GetSystemMetrics (SM_MOUSEPRESENT))
ShowCursor (bOn);
SetCursor (LoadCursor (NULL, bOn ? IDC_WAIT : IDC_ARROW));
}
LPTSTR strscan (LPTSTR pszString, LPTSTR pszTarget)
{
LPTSTR psz;
if (psz = _tcsstr (pszString, pszTarget))
return (psz);
else
return (pszString + lstrlen (pszString));
}
/* StripBlanks()
Strips leading and trailing blanks from a string.
Alters the memory where the string sits.
*/
void StripBlanks (LPTSTR pszString)
{
LPTSTR pszPosn;
/* strip leading blanks */
pszPosn = pszString;
while (*pszPosn == TEXT(' '))
pszPosn++;
if (pszPosn != pszString);
lstrcpy (pszString, pszPosn);
/* strip trailing blanks */
if ((pszPosn = pszString + lstrlen (pszString)) != pszString)
{
pszPosn = CharPrev (pszString, pszPosn);
while(*pszPosn == TEXT(' '))
pszPosn = CharPrev (pszString, pszPosn);
pszPosn = CharNext (pszPosn);
*pszPosn = TEXT('\0');
}
}
void SendWinIniChange (LPTSTR lpSection)
{
// NOTE: We have (are) gone through several iterations of which USER
// api is the correct one to use. The main problem for the Control
// Panel is to avoid being HUNG if another app (top-level window)
// is HUNG. Another problem is that we pass a pointer to a message
// string in our address space. SendMessage will 'thunk' this properly
// for each window, but PostMessage and SendNotifyMessage will not.
// That finally brings us to try to use SendMessageTimeout(). 9/21/92
//
// Try SendNotifyMessage in build 260 or later - kills earlier builds
// SendNotifyMessage ((HWND)-1, WM_WININICHANGE, 0L, (LONG)lpSection);
// PostMessage ((HWND)-1, WM_WININICHANGE, 0L, (LONG)lpSection);
// [stevecat] 4/4/92
//
// SendMessage ((HWND)-1, WM_WININICHANGE, 0L, (LPARAM)lpSection);
// NOTE: The final parameter (LPDWORD lpdwResult) must be NULL
SendMessageTimeout ((HWND)-1, WM_WININICHANGE, 0L, (LONG)lpSection,
SMTO_ABORTIFHUNG, 1000, NULL);
// if (iSection == WININIFONTS)
if (!lstrcmpi (lpSection, TEXT("fonts")))
{
SendMessageTimeout ((HWND)-1, WM_FONTCHANGE, 0, 0L,
SMTO_ABORTIFHUNG, 1000, NULL);
// SendMessage ((HWND)-1, WM_FONTCHANGE, 0, 0L);
// SendNotifyMessage ((HWND)-1, WM_FONTCHANGE, 0, 0L);
// PostMessage ((HWND)-1, WM_FONTCHANGE, 0, 0L);
}
}
int strpos (LPTSTR string, TCHAR chr)
{
LPTSTR lpTmp;
if (!(lpTmp = _tcschr (string, chr)))
return(-1);
else
return (lpTmp - string);
}
/*============================================================================
;
; RestartDlg
;
; The following function is the dialog procedure for bringing up a system
; restart message. This dialog is called whenever the user is advised to
; reboot the system. The dialog contains an IDOK and IDCANCEL button, which
; instructs the function whether to restart windows immediately.
;
; Parameters:
;
; lParam - The LOWORD portion contains an index to the resource string
; used to compose the restart message. This string is inserted
; before the string IDS_RESTART.
;
; Return Value: The usual dialog return value.
;
============================================================================*/
BOOL RestartDlg (HWND hDlg, UINT message, DWORD wParam, LONG lParam)
{
TCHAR szMessage[200];
TCHAR szTemp[100];
BOOLEAN PreviousPriv;
switch (message)
{
case WM_INITDIALOG:
/* Set up the restart message */
LoadString (hModule, LOWORD(lParam), szMessage, CharSizeOf(szMessage));
if (LoadString (hModule, IDS_RESTART, szTemp, CharSizeOf(szTemp)))
lstrcat (szMessage, szTemp);
SetDlgItemText (hDlg, RESTART_TEXT, szMessage);
break;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
RtlAdjustPrivilege (SE_SHUTDOWN_PRIVILEGE,
TRUE, FALSE, &PreviousPriv);
ExitWindowsEx (EWX_REBOOT | EWX_SHUTDOWN, (DWORD)(-1));
break;
case IDCANCEL:
EndDialog (hDlg, 0L);
break;
default:
return (FALSE);
}
return (TRUE);
default:
return (FALSE);
}
return (FALSE);
}
void BorderRect (HDC hDC, LPRECT lpRect, HBRUSH hBrush)
{
int cx;
int cy;
HBRUSH hbrSave;
extern int cxBorder,cyBorder;
cx = lpRect->right - lpRect->left; /* rectangle width */
cy = lpRect->bottom - lpRect->top; /* rectangle height */
hbrSave = SelectObject (hDC, hBrush);
PatBlt (hDC, lpRect->left, lpRect->top, cx, cyBorder, PATCOPY);
PatBlt (hDC, lpRect->left, lpRect->bottom - cyBorder, cx, cyBorder, PATCOPY);
PatBlt (hDC, lpRect->left, lpRect->top, cxBorder, cy, PATCOPY);
PatBlt (hDC, lpRect->right - cxBorder, lpRect->top, cxBorder, cy, PATCOPY);
SelectObject (hDC, hbrSave); /* restore previous hbrush */
}