private void ApplyCurrentScheme(CURSOR_ICON_SCHEME prevScheme, CURSOR_ICON_SCHEME newScheme)
{
List <int> indicesToChange = new List <int>();
for (int i = 0; i < mouseSchemeStrings.Length; i++)
{
if (!schemeStringsList[(int)prevScheme][i].Equals(schemeStringsList[(int)newScheme][i]))
{
indicesToChange.Add(i);
}
}
using (RegistryKey regKey = Registry.CurrentUser.CreateSubKey(@"Control Panel\Cursors", RegistryKeyPermissionCheck.ReadWriteSubTree))
{
//if we couldn't open the registry, tell the user and exit
if (regKey == null)
{
Logger.WriteError("Unable to get write permissions to Current User\\Control Panel\\Cursors");
return;
}
//Show message box to user if icon cannot be found.
if (!File.Exists(hcFileStringBaseName + "Arrow.cur"))
{
Logger.WriteError("Unable to find " + hcFileStringBaseName + "Arrow.cur");
}
foreach (int i in indicesToChange)
{
//Check if we should use hidden cursor here
if (schemeStringsList[(int)newScheme][i].Length > 0)
{
string executingDirectory = Path.GetFullPath(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location));
string hiddenCursorFullPath = executingDirectory + "\\" + hcFileStringBaseName + pathKeys[i] + ".cur"; //the filename is named accordingly
regKey.SetValue(pathKeys[i], hiddenCursorFullPath, RegistryValueKind.String);
}
else //we want to set back to regular mouse scheme
{
regKey.SetValue(pathKeys[i], mouseSchemeStrings[i], RegistryValueKind.String);
}
}
}
//tell windows we changed the cursor so it gets updated
User32.SystemParametersInfo(User32.SPI_SETCURSORS, 0, IntPtr.Zero, 0);
}
public void SetCursorScheme(CURSOR_ICON_SCHEME newScheme)
{
if (newScheme == currentScheme)
{
//Already set
return;
}
//Do not change scheme from MOUSE to EYEGAZE_ZOOM, as not a valid transition
if (currentScheme == CURSOR_ICON_SCHEME.MOUSE && newScheme == CURSOR_ICON_SCHEME.EYEGAZE_ZOOM)
{
return;
}
Logger.WriteVar(nameof(currentScheme), currentScheme);
Logger.WriteVar(nameof(newScheme), newScheme);
ApplyCurrentScheme(currentScheme, newScheme);
currentScheme = newScheme;
}
