static Applet()
{
LgLcd.Init();
// Queue DeInit to be called on application exit
AppDomain.CurrentDomain.ProcessExit += delegate {
LgLcd.DeInit();
};
}
public void Disconnect()
{
if (!Connected)
{
throw new Exception("Not connected.");
}
var error = LgLcd.Disconnect(Handle);
if (error != LgLcd.ReturnValue.ErrorSuccess)
{
throw new Win32Exception((int)error);
}
// Reset the handle
_handle = LgLcd.InvalidConnection;
}
public void Connect(string friendlyName, bool autostartable, AppletCapabilities appletCaps)
{
if (Connected)
{
throw new Exception("Already connected.");
}
FriendlyName = friendlyName;
Autostartable = autostartable;
CapabilitiesSupported = appletCaps;
var ctx = new LgLcd.ConnectContextEx {
AppFriendlyName = friendlyName,
AppletCapabilitiesSupported = (LgLcd.AppletCapabilities)appletCaps,
IsAutostartable = autostartable,
IsPersistent = true, // deprecated and ignored as of 3.00
OnConfigure = new LgLcd.ConfigureContext {
Context = IntPtr.Zero,
OnConfigure = _configurationDelegate,
},
OnNotify = new LgLcd.NotificationContext {
Context = IntPtr.Zero,
OnNotification = _notificationDelegate,
},
Reserved1 = 0,
};
var error = LgLcd.ConnectEx(ref ctx);
if (error != LgLcd.ReturnValue.ErrorSuccess)
{
if (error == LgLcd.ReturnValue.ErrorInvalidParameter)
{
throw new ArgumentException("FriendlyName must not be null.");
}
if (error == LgLcd.ReturnValue.ErrorFileNotFound)
{
throw new Exception("LCDMon is not running on the system.");
}
if (error == LgLcd.ReturnValue.ErrorAlreadyExists)
{
throw new Exception("The same client is already connected.");
}
if (error == LgLcd.ReturnValue.RcpXWrongPipeVersion)
{
throw new Exception("LCDMon does not understand the protocol.");
}
throw new Win32Exception((int)error);
}
_handle = ctx.Connection;
}
public void SetAsLCDForegroundApp(bool yesNo)
{
if (!Opened)
{
throw new Exception("Not opened.");
}
var error = LgLcd.SetAsLCDForegroundApp(Handle, yesNo);
if (error != LgLcd.ReturnValue.ErrorSuccess)
{
if (error == LgLcd.ReturnValue.ErrorLockFailed)
{
throw new Exception("The operation could not be completed.");
}
throw new Win32Exception((int)error);
}
}
public void UpdateBitmap(
Bitmap bitmap,
Priority priority,
bool syncUpdate = false,
bool syncCompleteWithinFrame = false)
{
if (!Opened)
{
throw new Exception("Not opened.");
}
if (bitmap.Width != BitmapWidth || bitmap.Height != BitmapHeight)
{
throw new ArgumentException("The bitmaps dimensions do not conform.");
}
var lgBitmap = new LgLcd.Bitmap {
Format = _bitmapFormat,
Pixels = new byte[BitmapWidth * BitmapHeight * BitmapBpp],
};
var bitmapData = bitmap.LockBits(
new Rectangle(0, 0, BitmapWidth, BitmapHeight),
ImageLockMode.ReadOnly,
_pixelFormat);
Marshal.Copy(bitmapData.Scan0, lgBitmap.Pixels, 0, lgBitmap.Pixels.Length);
bitmap.UnlockBits(bitmapData);
var error = LgLcd.UpdateBitmap(
Handle,
lgBitmap,
(uint)priority
| (syncUpdate ? LgLcd.SyncUpdate : 0)
| (syncCompleteWithinFrame ? LgLcd.SyncCompleteWithinFrame : 0));
if (error != LgLcd.ReturnValue.ErrorSuccess)
{
if (error == LgLcd.ReturnValue.ErrorDeviceNotConnected)
{
throw new InvalidOperationException("The specified device has been disconnected.");
}
if (error == LgLcd.ReturnValue.ErrorAccessDenied)
{
throw new InvalidAsynchronousStateException("Synchronous operation was not displayed on the LCD within the frame interval (30 ms).");
}
throw new Win32Exception((int)error);
}
}
public SoftButtonFlags ReadSoftButtons()
{
if (!Opened)
{
throw new Exception("Not opened.");
}
LgLcd.SoftButtonFlags buttonFlags;
var error = LgLcd.ReadSoftButtons(Handle, out buttonFlags);
if (error != LgLcd.ReturnValue.ErrorSuccess)
{
if (error == LgLcd.ReturnValue.ErrorDeviceNotConnected)
{
throw new Exception("The specified device has been disconnected.");
}
throw new Win32Exception((int)error);
}
return((SoftButtonFlags)buttonFlags);
}
private int NotifyHandler(
int connection,
IntPtr context,
LgLcd.NotificationCode notificationCode,
int notifyParam1,
int notifyParam2,
int notifyParam3,
int notifyParam4)
{
switch (notificationCode) {
case LgLcd.NotificationCode.DeviceArrival:
OnDeviceArrival((DeviceType)notifyParam1);
break;
case LgLcd.NotificationCode.DeviceRemoval:
// All devices of the given type got disabled
OnDeviceRemoval((DeviceType)notifyParam1);
break;
case LgLcd.NotificationCode.AppletEnabled:
OnAppletEnabled();
break;
case LgLcd.NotificationCode.AppletDisabled:
OnAppletDisabled();
break;
case LgLcd.NotificationCode.CloseConnection:
OnCloseConnection();
break;
}
return 0;
}
private int OnSoftButtons(int device, LgLcd.SoftButtonFlags buttons, IntPtr context)
{
EventHandler e = null;
switch (buttons)
{
case LgLcd.SoftButtonFlags.Left:
e = Left;
break;
case LgLcd.SoftButtonFlags.Right:
e = Right;
break;
case LgLcd.SoftButtonFlags.Ok:
e = Ok;
break;
case LgLcd.SoftButtonFlags.Cancel:
e = Cancel;
break;
case LgLcd.SoftButtonFlags.Up:
e = Up;
break;
case LgLcd.SoftButtonFlags.Down:
e = Down;
break;
case LgLcd.SoftButtonFlags.Menu:
e = Menu;
break;
}
if (e != null)
{
e(this, EventArgs.Empty);
}
return 0;
}
