Source code of Windows XP (NT5)
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/*++
Copyright (c) 1992 Microsoft Corporation
Module Name:
fdhelp.c
Abstract:
Routines to support context-sensitive help in the disk manager.
Author:
Ted Miller (tedm) 18-March-1992
Revision History:
--*/
#include "fdisk.h"
//
// Define macro to convert between a menu id and its corresponding
// context-sensitive help id, in a switch statement.
//
#define MENUID_TO_HELPID(name) case IDM_##name : \
HelpContext = HC_DM_MENU_##name; \
break;
//
// Current help context
//
DWORD HelpContext = (DWORD)(-1);
//
// Handle to windows hook for F1 key
//
HHOOK hHook;
DWORD
HookProc(
IN int nCode,
IN UINT wParam,
IN LONG lParam
)
/*++
Routine Description:
Hook proc to detect F1 key presses.
Arguments:
Return Value:
--*/
{
PMSG pmsg = (PMSG)lParam;
if(nCode < 0) {
return(CallNextHookEx(hHook,nCode,wParam,lParam));
}
if(((nCode == MSGF_DIALOGBOX) || (nCode == MSGF_MENU))
&& (pmsg->message == WM_KEYDOWN)
&& (LOWORD(pmsg->wParam) == VK_F1))
{
PostMessage(hwndFrame,WM_F1DOWN,nCode,0);
return(TRUE);
}
return(FALSE);
}
VOID
Help(
IN LONG Code
)
/*++
Routine Description:
Display context-sensitive help.
Arguments:
Code - supplies type of message (MSGF_DIALOGBOX, MSGF_MENU, etc).
Return Value:
None.
--*/
{
UNREFERENCED_PARAMETER(Code);
if(HelpContext != -1) {
WinHelp(hwndFrame,HelpFile,HELP_CONTEXT,HelpContext);
DrawMenuBar(hwndFrame);
}
}
VOID
DialogHelp(
IN DWORD HelpId
)
/*++
Routine Description:
Display help on a specific item.
Arguments:
HelpId -- Supplies the help item to display.
Return Value:
None.
--*/
{
WinHelp(hwndFrame,HelpFile,HELP_CONTEXT,HelpId);
DrawMenuBar(hwndFrame);
}
VOID
SetMenuItemHelpContext(
IN LONG wParam,
IN DWORD lParam
)
/*++
Routine Description:
Routine to set help context based on which menu item is currently
selected.
Arguments:
wParam,lParam - params to window proc in WM_MENUSELECT case
Return Value:
None.
--*/
{
if(HIWORD(lParam) == 0) { // menu closed
HelpContext = (DWORD)(-1);
} else if (HIWORD(wParam) & MF_POPUP) { // popup selected
HelpContext = (DWORD)(-1);
} else { // regular old menu item
switch(LOWORD(wParam)) {
MENUID_TO_HELPID(PARTITIONCREATE)
MENUID_TO_HELPID(PARTITIONCREATEEX)
MENUID_TO_HELPID(PARTITIONDELETE)
#if i386
MENUID_TO_HELPID(PARTITIONACTIVE)
#else
MENUID_TO_HELPID(SECURESYSTEM)
#endif
MENUID_TO_HELPID(PARTITIONLETTER)
MENUID_TO_HELPID(PARTITIONEXIT)
MENUID_TO_HELPID(CONFIGMIGRATE)
MENUID_TO_HELPID(CONFIGSAVE)
MENUID_TO_HELPID(CONFIGRESTORE)
MENUID_TO_HELPID(FTESTABLISHMIRROR)
MENUID_TO_HELPID(FTBREAKMIRROR)
MENUID_TO_HELPID(FTCREATESTRIPE)
MENUID_TO_HELPID(FTCREATEPSTRIPE)
MENUID_TO_HELPID(FTCREATEVOLUMESET)
MENUID_TO_HELPID(FTEXTENDVOLUMESET)
MENUID_TO_HELPID(FTRECOVERSTRIPE)
MENUID_TO_HELPID(OPTIONSSTATUS)
MENUID_TO_HELPID(OPTIONSLEGEND)
MENUID_TO_HELPID(OPTIONSCOLORS)
MENUID_TO_HELPID(OPTIONSDISPLAY)
MENUID_TO_HELPID(HELPCONTENTS)
MENUID_TO_HELPID(HELPSEARCH)
MENUID_TO_HELPID(HELPHELP)
MENUID_TO_HELPID(HELPABOUT)
default:
HelpContext = (DWORD)(-1);
}
}
}
VOID
InitHelp(
VOID
)
{
hHook = SetWindowsHookEx(WH_MSGFILTER,(HOOKPROC)HookProc,NULL,GetCurrentThreadId());
}
VOID
TermHelp(
VOID
)
{
UnhookWindowsHookEx(hHook);
}