Hi.. Does anyone know how to call another executable or any other program from within a AFL?
I need to send myself some alerts on email while I work in office. I have written a small vb.net program and I want to invoke/call this program from AFL after certain conditions are met.
Use ALERTIF Function:-
ALERTIF
- trigger alerts
SYNTAX AlertIf( BOOLEAN_EXPRESSION, command, text, type = 0, flags =
1+2+4+8, lookback = 1 );
RETURNS nothing
FUNCTION Triggers alert action if BOOLEAN_EXPRESSION is true.
1. BOOLEAN_EXPRESSION is the expression that if evaluates to True
(non zero value) triggers the alert. If it evaluates to False (zero
value) no alert is triggered. Please note that only lookback most
recent bars are considered.
2. The command string defines the action taken when alert is
triggered. If it is empty the alert text is simply displayed in the
Alert output window (View->Alert Output). Other supported values of
command string are:
SOUND the-path-to-the-WAV-file
EMAIL
EXEC the-path-to-the-file-or-URL
SOUND command plays the WAV file once.
EMAIL command sends the e-mail to the account defined in the
settings (Tools->Preferences->E-mail). The format of the e-mail is
as follows: Subject: Alert type_name (type) Ticker on Date/Time
Body: text
EXEC command launches external application or file or URL specified
after EXEC command. are attached after file name and text is
attached at the end
3. Text defines the text that will be printed in the output window
or sent via e-mail or added as argument to the application specified
by EXEC command
4. Type defines type of the alert. Pre-defined types are 0 -
default, 1 - buy, 2 - sell, 3 - short, 4- cover. YOu may specify
higher values and they will get name "other"
5. Flags control behaviour of AlertIF function. This field is a
combination (sum) of the following values:
( 1 - display text in the output window, 2 - make a beep (via
computer speaker), 4 - dont display repeated alerts having the same
type, 8 - dont display repeated alerts having the same date/time)
By default all these options are turned ON.
6. lookback parameter controls how many recent bars are checked
EXAMPLE Buy = Cross( MACD(), Signal() );
Sell = Cross( Signal(), MACD() );
Short = Sell;
Cover = Buy;
AlertIF( Buy, "EMAIL", "A sample alert on "+FullName(), 1 );
AlertIF( Sell, "SOUND C:\\Windows\\Media\\Ding.wav", "Audio alert",
2 );
AlertIF( Short, "EXEC Calc.exe", "Launching external application", 3
);
AlertIF( Cover, "", "Simple text alert", 4 );
Note EXEC command uses ShellExecute function and allows not only EXE
files but URLs too.
Hope this Helps. The abovementioned is from User Guide
Sanjeev Bhatia