private static bool AddMapping(KeyMapping map, bool noStackNoEventRaised)
{
if (!map.IsValid())
{
return(false);
}
int scancode = map.From.Scancode;
int extended = map.From.Extended;
// If user is remapping Left Ctrl, Left Alt, or Delete then s/he must confirm
// that it could be goodbye to CTRL-ALT-DEL
if ((scancode == 29 && extended == 0) || (scancode == 56 && extended == 0) ||
(scancode == 83 && extended == 224))
{
string action = IsDisabledMapping(map) ? "disable " : "remap ";
string warning = "You are attempting to " + action + map.From.Name +
" which is required for CTRL-ALT-DELETE." + (char)13 +
"If you continue you may not be able to log on" +
" to your PC.";
string question = "Are you really sure you want to " + action + "this key?";
if (operatingSystemCapability.ImplementsTaskDialog)
{
TaskDialogResult dr = FormsManager.ShowTaskDialog(question, warning, "Key Mapper",
TaskDialogButtons.Yes | TaskDialogButtons.No,
TaskDialogIcon.Question);
if (dr != TaskDialogResult.Yes)
{
return(false);
}
}
else
{
DialogResult dr = MessageBox.Show(warning + (char)13 + (char)13 + question, "Key Mapper",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question, MessageBoxDefaultButton.Button2, 0);
if (dr != DialogResult.Yes)
{
return(false);
}
}
}
// If user is remapping Pause, then suggest they will want to disable Num Lock as well.
bool disableNumLock = false;
if (scancode == 29 && extended == 225 && IsDisabledMapping(map) == false)
{
// Is Num Lock already disabled or remapped?
bool numLockIsDisabled = false;
bool numLockIsMapped = false;
foreach (KeyMapping km in _bootMappings)
{
if (km.From.Scancode == 69)
{
if (IsDisabledMapping(km))
{
numLockIsDisabled = true;
}
else
{
numLockIsMapped = true;
}
}
}
// Num Lock could be disabled or mapped in boot
// but overridden in user mappings.
foreach (KeyMapping km in _userMappings)
{
if (km.From.Scancode == 69)
{
if (IsDisabledMapping(km))
{
numLockIsDisabled = true;
}
else
{
numLockIsMapped = true;
}
}
}
if (numLockIsDisabled == false)
{
string warning = "If you remap Pause, the Num Lock key will be disabled" +
(numLockIsMapped
? ((char)13 + "and your existing Num Lock mapping will be removed.")
: ".");
const string question = "Do you still want to remap Pause?";
if (operatingSystemCapability.ImplementsTaskDialog)
{
TaskDialogResult dr = FormsManager.ShowTaskDialog(question, warning, "Key Mapper",
TaskDialogButtons.Yes | TaskDialogButtons.No,
TaskDialogIcon.Question);
if (dr != TaskDialogResult.Yes)
{
return(false);
}
}
else
{
DialogResult dr = MessageBox.Show(warning + (char)13 + (char)13 + question, "Key Mapper",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question, MessageBoxDefaultButton.Button1, 0);
if (dr != DialogResult.Yes)
{
return(false);
}
}
disableNumLock = true;
}
}
if (noStackNoEventRaised == false)
{
PushMappingsOntoUndoStack();
}
// Check for any existing mappings for this key
// if they exist, this mapping needs to replace them.
if (Filter == MappingFilter.Boot)
{
map.SetType(MappingType.Boot);
KeyMapping existingMap = GetKeyMapping(map.From.Scancode, map.From.Extended);
if (existingMap.IsEmpty() == false && existingMap.MapType == MappingType.Boot)
{
_bootMappings.Remove(existingMap);
}
_bootMappings.Add(map);
}
else
{
map.SetType(MappingType.User);
KeyMapping existingMap = GetKeyMapping(map.From.Scancode, map.From.Extended);
if (existingMap.IsEmpty() == false && existingMap.MapType == MappingType.User)
{
_userMappings.Remove(existingMap);
}
_userMappings.Add(map);
}
if (disableNumLock)
{
var nl = new KeyMapping(new Key(69, 0), new Key(0, 0));
AddMapping(nl, true);
}
if (noStackNoEventRaised == false)
{
RaiseMappingsChangedEvent();
}
return(true);
}