TDF_TTY module routines

TDF_TTY module routines - WIN32

tdf_tty.c - TDF TTY program

A useful little utility to snarf a Signal data stream from a serial port, save the quotes and broadcast a data stream out the Ethernet to other clients.

The serial port code comes from a Microsoft SDK sample TTY.C which I have layeried my code on top of. Warning - the SIG_DATA.C module does not claim to handle all of the Signal data stream. I do not have the Signal SDK, this is a simple example which will grab most things (futures, mutual funds, stocks, indexes + market messages & time stamps). If you expand that code or have further info on the data stream, I'd be interested in seeing it.

This program is also a good example of using the udp socket module to broadcast data to other programs on your LAN. It also demos the use of the DeBug Message PORT routines (DBM_PORT.C) for leaving embedded debug code in shipping apps.

Function	WinMain
Include file	TDF_TTY.H
Prototype	int PASCAL WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow )
Remarks	Main program entry point.

Function	InitApplication
Include file	TDF_TTY.H
Prototype	BOOL NEAR InitApplication( HANDLE hInstance )
Remarks	First time initialization stuff.

Function	InitInstance
Include file	TDF_TTY.H
Prototype	HWND NEAR InitInstance( HANDLE hInstance, int nCmdShow )
Remarks	Initializes instance specific information.

Function	TTYWndProcOld
Include file	TDF_TTY.H
Prototype	LRESULT FAR PASCAL TTYWndProcOld( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
Remarks	This is the TTY Window Proc.

Function	CreateTTYInfo
Include file	TDF_TTY.H
Prototype	LRESULT NEAR CreateTTYInfo( HWND hWnd )
Remarks	Creates the tty information structure and sets menu option availability. Returns -1 if unsuccessful.

Function	DestroyTTYInfo
Include file	TDF_TTY.H
Prototype	BOOL NEAR DestroyTTYInfo( HWND hWnd )
Remarks	Destroys block associated with TTY window handle.

Function	ResetTTYScreen
Include file	TDF_TTY.H
Prototype	BOOL NEAR ResetTTYScreen( HWND hWnd, NPTTYINFO npTTYInfo )
Remarks	Resets the TTY character information and causes the screen to resize to update the scroll information.

Function	PaintTTY
Include file	TDF_TTY.H
Prototype	BOOL NEAR PaintTTY( HWND hWnd )
Remarks	Paints the rectangle determined by the paint struct of the DC.

Function	SizeTTY
Include file	TDF_TTY.H
Prototype	BOOL NEAR SizeTTY( HWND hWnd, WORD wVertSize, WORD wHorzSize )
Remarks	Sizes TTY and sets up scrolling regions.

Function	ScrollTTYVert
Include file	TDF_TTY.H
Prototype	BOOL NEAR ScrollTTYVert( HWND hWnd, WORD wScrollCmd, WORD wScrollPos )
Remarks	Scrolls TTY window vertically.

Function	ScrollTTYHorz
Include file	TDF_TTY.H
Prototype	BOOL NEAR ScrollTTYHorz( HWND hWnd, WORD wScrollCmd, WORD wScrollPos )
Remarks	Scrolls TTY window horizontally.

Function	SetTTYFocus
Include file	TDF_TTY.H
Prototype	BOOL NEAR SetTTYFocus( HWND hWnd )
Remarks	Sets the focus to the TTY window also creates caret.

Function	KillTTYFocus
Include file	TDF_TTY.H
Prototype	BOOL NEAR KillTTYFocus( HWND hWnd )
Remarks	Kills TTY focus and destroys the caret.

Function	MoveTTYCursor
Include file	TDF_TTY.H
Prototype	BOOL NEAR MoveTTYCursor( HWND hWnd )
Remarks	Moves caret to current position.

Function	ProcessTTYCharacter
Include file	TDF_TTY.H
Prototype	BOOL NEAR ProcessTTYCharacter( HWND hWnd, BYTE bOut )
Remarks	This simply writes a character to the port and echos it to the TTY screen if fLocalEcho is set.

Function	OpenConnection
Include file	TDF_TTY.H
Prototype	BOOL NEAR OpenConnection( HWND hWnd )
Remarks	Opens communication port specified in the TTYINFO struct. It also sets the CommState and notifies the window via the fConnected flag in the TTYINFO struct.

Function	SetupConnection
Include file	TDF_TTY.H
Prototype	BOOL NEAR SetupConnection( HWND hWnd )
Remarks	This routines sets up the DCB based on settings in the TTY info structure and performs a SetCommState().

Function	CloseConnection
Include file	TDF_TTY.H
Prototype	BOOL NEAR CloseConnection( HWND hWnd )
Remarks	Closes the connection to the port. Resets the connect flag in the TTYINFO struct.

Function	ReadCommBlock
Include file	TDF_TTY.H
Prototype	int NEAR ReadCommBlock( HWND hWnd, LPSTR lpszBlock, int nMaxLength )
Remarks	Reads a block from the COM port and stuffs it into the provided buffer.

Function	WriteCommBlock
Include file	TDF_TTY.H
Prototype	BOOL NEAR WriteCommBlock( HWND hWnd, LPSTR lpByte , DWORD dwBytesToWrite)
Remarks	Writes a block of data to the COM port specified in the associated TTY info structure.

Function	WriteTTYBlock
Include file	TDF_TTY.H
Prototype	BOOL NEAR WriteTTYBlock( HWND hWnd, LPSTR lpBlock, int nLength )
Remarks	Writes block to TTY screen. Nothing fancy - just straight TTY.

Function	GoModalDialogBoxParam
Include file	TDF_TTY.H
Prototype	VOID NEAR GoModalDialogBoxParam( HINSTANCE hInstance, LPCSTR lpszTemplate, HWND hWnd, DLGPROC lpDlgProc, LPARAM lParam )
Remarks	It is a simple utility function that simply performs the MPI and invokes the dialog box with a DWORD paramter.

Function	AboutDlgProc
Include file	TDF_TTY.H
Prototype	BOOL FAR PASCAL AboutDlgProc( HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam )
Remarks	A simple dialog box proc to support an "about" box.

Function	FillComboBox
Include file	TDF_TTY.H
Prototype	VOID NEAR FillComboBox( HINSTANCE hInstance, HWND hCtrlWnd, int nIDString, DWORD NEAR *npTable, WORD wTableLen, DWORD dwCurrentSetting )
Remarks	Fills the given combo box with strings from the resource table starting at nIDString. Associated items are added from given table. The combo box is notified of the current setting.

Function	SettingsDlgInit
Include file	TDF_TTY.H
Prototype	BOOL NEAR SettingsDlgInit( HWND hDlg )
Remarks	Puts current settings into dialog box (via CheckRadioButton() etc.)

Function	SelectTTYFont
Include file	TDF_TTY.H
Prototype	BOOL NEAR SelectTTYFont( HWND hDlg )
Remarks	Selects the current font for the TTY screen. Uses the Common Dialog ChooseFont() API.

Function	SettingsDlgTerm
Include file	TDF_TTY.H
Prototype	BOOL NEAR SettingsDlgTerm( HWND hDlg )
Remarks	Puts dialog contents into the TTY info structure.

Function	SettingsDlgProc
Include file	TDF_TTY.H
Prototype	BOOL FAR PASCAL SettingsDlgProc( HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam )
Remarks	Dialog Proc for setting all of the user preference settings for the TTY.

Function	CommWatchProc
Include file	TDF_TTY.H
Prototype	DWORD FAR PASCAL CommWatchProc( LPSTR lpData )
Remarks	A secondary thread that will watch for COMM events.

Function	snarf_the_bytes
Include file	TDF_TTY.H
Prototype	void snarf_the_bytes( LPSTR lpBlock, int nLength )
Remarks	Copy the ASCII data, NUKK terminate it then pass it to the store code.

Function	init_the_snarf_code
Include file	TDF_TTY.H
Prototype	void init_the_snarf_code( void )
Remarks	Clear the signal data collection vars.

Function	write_snarfed_data
Include file	TDF_TTY.H
Prototype	void write_snarfed_data( void )
Remarks	If the collection tree is dirty flush it to disk.

Function	init_1_broadcast_port
Include file	TDF_TTY.H
Prototype	IP_SOCK *init_1_broadcast_port( int port_num )
Remarks	Allocate, initialize, open and return to the caller a UDP broadcast socket for his requested port number.

Function	init_broadcast_ports
Include file	TDF_TTY.H
Prototype	void init_broadcast_ports( void )
Remarks	Open all the broadcast ports for the application. (4 - raw data echo, data quotes, market messages and time stamps.)

Function	free_the_snarf_code
Include file	TDF_TTY.H
Prototype	void free_the_snarf_code( void )
Remarks	Be nice and close the sockets before exiting.

Function	process_cmd_line_4_arguments
Include file	TDF_TTY.H
Prototype	void process_cmd_line_4_arguments( void )
Remarks	Process the user's command line arguments into a argv array which then is processed by the normal getargs() procedure to store the data into the programs switch flags.

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