BOOL CLCDOutput::OpenByType(lgLcdOpenByTypeContext &OpenContext)
{
//Close the old device if there is one
Close();
DWORD res = lgLcdOpenByType(&OpenContext);
if (ERROR_SUCCESS != res)
{
if( res == ERROR_INVALID_PARAMETER )
{
LCDUITRACE( _T("Open failed: invalid parameter.\n") );
return FALSE;
}
else if( res == ERROR_ALREADY_EXISTS )
{
LCDUITRACE( _T("Open failed: already exists.\n") );
return FALSE;
}
return FALSE;
}
m_hDevice = OpenContext.device;
m_dwButtonState = 0;
// restores
SetAsForeground(m_bSetAsForeground);
m_OpenByTypeContext = OpenContext;
OnOpenedDevice(m_hDevice);
return TRUE;
}
void CLCDOutput::EnumerateDevices()
{
lgLcdDeviceDescEx descEx;
if (LGLCD_INVALID_CONNECTION == m_hConnection)
{
if (ERROR_SUCCESS == lgLcdConnectEx(&m_lcdConnectCtxEx))
{
// make sure we don't work with a stale device handle
m_hConnection = m_lcdConnectCtxEx.connection;
m_hDevice = LGLCD_INVALID_CONNECTION;
}
else
{
return;
}
}
// close the lcd device before we open up another
if (LGLCD_INVALID_DEVICE != m_hDevice)
{
lgLcdClose(m_hDevice);
m_hDevice = LGLCD_INVALID_DEVICE;
}
// Setup the device family to use next time
lgLcdSetDeviceFamiliesToUse(m_hConnection, m_dwDeviceFamiliesSupported, m_dwDeviceFamiliesSupportedReserved1);
ZeroMemory(&descEx, sizeof(lgLcdDeviceDescEx));
DWORD res = ERROR_SUCCESS;
res = lgLcdEnumerateEx(m_hConnection, 0, &descEx);
if (ERROR_SUCCESS != res)
{
if(ERROR_NO_MORE_ITEMS != res)
{
// something happened. Let's close this.
CloseAndDisconnect();
}
return;
}
// ERROR_NO_MORE_ITEMS
lgLcdOpenContext open_ctx;
ZeroMemory(&open_ctx, sizeof(open_ctx));
open_ctx.connection = m_hConnection;
open_ctx.index = 0;
res = lgLcdOpen(&open_ctx);
if (ERROR_SUCCESS != res)
return;
m_hDevice = open_ctx.device;
m_dwButtonState = 0;
// restores
SetAsForeground(m_bSetAsForeground);
}
/* attach to an available lcd */
CMPC_Lcd::CMPC_Lcd(void)
{
InitializeCriticalSection(&cs);
hLCD_UpdateThread = NULL;
// lcd init
ZeroMemory(&m_ConnCtx, sizeof(m_ConnCtx));
m_ConnCtx.appFriendlyName = _T(LCD_APP_NAME);
m_ConnCtx.dwAppletCapabilitiesSupported = LGLCD_APPLET_CAP_BW | LGLCD_APPLET_CAP_QVGA;
m_ConnCtx.isAutostartable = FALSE;
m_ConnCtx.isPersistent = FALSE;
m_ConnCtx.onConfigure.configCallback = NULL; // we don't have a configuration screen
m_ConnCtx.onConfigure.configContext = NULL;
m_ConnCtx.onNotify.notificationCallback = NULL;
m_ConnCtx.onNotify.notifyContext = NULL;
m_ConnCtx.connection = LGLCD_INVALID_CONNECTION; // the "connection" member will be returned upon return
CAppSettings& s = AfxGetAppSettings();
if (!s.fLCDSupport) {
return;
}
if (FALSE == m_Connection.Initialize(m_ConnCtx)) {
//_tperror(_T("Initialize"));
return;
}
m_MonoOutput = m_Connection.MonoOutput();
m_MonoOutput->ShowPage(&m_MonoPage);
m_ColorOutput = m_Connection.ColorOutput();
m_ColorOutput->ShowPage(&m_ColorPage);
SetAsForeground(TRUE);
m_Connection.Update();
if (m_Connection.IsConnected()) {
Thread_Loop = true;
SetPlayState(PS_STOP);
hLCD_UpdateThread = (HANDLE) _beginthread(LCD_UpdateThread, 512 /* stack */, (void*) this /* arg */);
}
}
