Calling a procedure/a function

ONLINE HELP
WINDEV, WEBDEV AND WINDEV MOBILE

Version:

Home | Sign in | English

Special cases

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

Calling a procedure/a function

In french: Appeler une procédure/une fonction

The method for calling a procedure is the same, no matter whether it is a global procedure or a local procedure.

Reminder:

In WLanguage, there is no distinction between the procedures and the functions. The syntaxes for declaring and using procedures also apply to functions.
Versions 16 and later
For a multi-syntax procedure, the call to the proper syntax is resolved at run time. For more details, see Prototype overload.
New in version 16
For a multi-syntax procedure, the call to the proper syntax is resolved at run time. For more details, see Prototype overload.
For a multi-syntax procedure, the call to the proper syntax is resolved at run time. For more details, see Prototype overload.

Example

// Call to the Find procedure that returns a boolean
IF Find(Customer, CustNum, Number) THEN
Info("Customer number found")
ELSE
Info("Customer number not found")
END

Syntax

Calling a procedure that returns a parameter Hide the details

[<Returned value> = ] <Procedure name>([<Parameters>])

<Returned value>:

Value returned by the procedure (optional), only if the procedure returns a result.
Versions 18 and later
The type of the return value of a procedure can be specified during its declaration. For more details, see Declaring a procedure.
New in version 18
The type of the return value of a procedure can be specified during its declaration. For more details, see Declaring a procedure.
The type of the return value of a procedure can be specified during its declaration. For more details, see Declaring a procedure.

<Procedure name>:

Name of the procedure to call.

<Parameters>:

Parameters passed to the procedure. Each parameter is separated by a comma.
For more details on how to declare the parameters of a procedure, see The parameters of a procedure.

Versions 19 and later

Calling a procedure that returns several parameters Hide the details

(<Value 1>, ..., <Value N>) = <Procedure name>([<Parameters>])

<Value 1 to N>:

Values returned by the procedure.
The type of the return values of a procedure can be specified during its declaration. For more details, see Declaring a procedure.

<Procedure name>:

Name of the procedure to call.

<Parameters>:

Parameters passed to the procedure. Each parameter is separated by a comma.
For more details on how to declare the parameters of a procedure, see The parameters of a procedure.

New in version 19

Calling a procedure that returns several parameters Hide the details

(<Value 1>, ..., <Value N>) = <Procedure name>([<Parameters>])

<Value 1 to N>:

Values returned by the procedure.
The type of the return values of a procedure can be specified during its declaration. For more details, see Declaring a procedure.

<Procedure name>:

Name of the procedure to call.

<Parameters>:

Parameters passed to the procedure. Each parameter is separated by a comma.
For more details on how to declare the parameters of a procedure, see The parameters of a procedure.

Calling a procedure that returns several parameters Hide the details

(<Value 1>, ..., <Value N>) = <Procedure name>([<Parameters>])

<Value 1 to N>:

Values returned by the procedure.
The type of the return values of a procedure can be specified during its declaration. For more details, see Declaring a procedure.

<Procedure name>:

Name of the procedure to call.

<Parameters>:

Parameters passed to the procedure. Each parameter is separated by a comma.
For more details on how to declare the parameters of a procedure, see The parameters of a procedure.

Remarks

Special cases

To make your programs more readable, the PROCEDURE keyword can be replaced by the FUNCTION keyword.
If the procedure expects no parameter, you can also use the following syntax:

[<Returned value> = ] <Procedure name>
To run a procedure of an opened window, use ExecuteProcess. Example:

// Run the MyProc procedure found in WIN_MyWindow
WinName is string = "WIN_MyWindow"
ExecuteProcess(WinName + ".MyProc", trtProcedure)