I don't understand about datatype

[Phstiger]

In the Autoit Help only have 4 datatype basic: Numeric, BinaryString, Booleans, String.

Outwith, do it have datatype basic another? And Do this datatype defined in Autoit ?

I have seen with "DllStructCreate" function in "Autoit Help" have datatype: byte,ubyte,char,short, ushort,int,....

Do This datatype defined in APIs such as user32.dll ? And Do most datatype and functions had inherited from API library of Windows ?

Sorry you, because my english quick bad.

Please help me.

Thanks

[rudi]

Hi.

In the Autoit Help only have 4 datatype basic: Numeric, BinaryString, Booleans, String.

Outwith, do it have datatype basic another?

Sorry you, because my english quick bad.

Never mind about your English, I can get your question

As nobody else did answer so far I'll try my very best, hope I got it correctly:

The Data Types you can find in Autoit Help File, "Language Reference, Datatypes", is all AUTOIT knows about.

But certain functions might require special datatype rules that the parameters passed to the function have to meet: As Windows APIs (or whatsoever) want it that way to "get" their parameters passed.

The datatype handling inside Autoit is very easy, as you can see in the "*" and "&" examples on top of the help page "Language Reference, Datatypes".

Have fun, Rudi.

[Phstiger]

But certain functions might require special datatype rules that the parameters passed to the function have to meet: As Windows APIs (or whatsoever) want it that way to "get" their parameters passed.

So Windows APIS (ex: in user32.dll) not define in Auoit , it only define in user32.dll, doesn't it?

The datatype handling inside Autoit is very easy, as you can see in the "*" and "&" examples on top of the help page "Language Reference, Datatypes".

I want a example about:

With C++

void func_name(int &var)

{

......

}

How do Autoit use "&var" ?

[SmOke_N]

Local $tStruct = DllStructCreate("int")
DllStructSetData($tStruct, 1, $var)
Local $aDLLCall = DllCall("yourdll.dll", "none", "func_name", "int*", DllStructGetPtr($tStruct, 1))
If IsArray($aDLLCall) Then MsgBox(64, "Value", $aDLLCall[0])

Edited March 20, 2008 by SmOke_N

[Phstiger]

I have a problem.

In other program language such as C/C++.

With variable, it make a symbol tables in the stack and compare datatype of variable and execute command. Out of that datatype basic, it define other datatype as functions of it.

How do Autoit do?

Please explain for me.

Thanks

[PsaltyDS]

I have a problem.

In other program language such as C/C++.

With variable, it make a symbol tables in the stack and compare datatype of variable and execute command. Out of that datatype basic, it define other datatype as functions of it.

How do Autoit do?

Please explain for me.

Thanks

It do very well, thank you.

AutoIt is a scripting language, not C/C++. It's variables are not what you call "strongly typed".

In addition, there are many places (but not all) where AutoIt will automatically convert data types to match required inputs. This happens with most native functions, but does not happen with most UDFs.

The AutoIt interpreter is written in C++, and down at that level, all AutoIt variables are type "Variant". AutoIt attaches its own identifying structure to match it's various Variant types with the various Windows APIs it talks to.

There are such AutoIt Variant types for more than what you mentioned in your earlier post. You left out arrays, objects, handles, and DLL structs (which SmOke_N gave you an example of).

Hope that helps.

[Phstiger]

I have a strangeness

With this code in Autoit version v3.2.2.0

if 1 < 2 Then

MsgBox(0,"Title","Alway is True")

Else

Aaaaaa ; never this execute command

EndIf

Autoit never send error message about error to user.

With Version v3.2.10.0

That error fixed, but with this code:

if 1 < 2 Then

MsgBox(0,"Title","Alway is True")

Else

MsgBox( ; never this execute command

EndIf

Autoit also never see this error

My question is: During execute command, Autoit read from one line to last line, but only read lines that true conditions.

Such "1<2" alway true , so Else "MsgBox(" never Autoit check it.

Edited March 21, 2008 by Phstiger

[PsaltyDS]

I have a strangeness

With this code in Autoit version v3.2.2.0

Autoit never send error message about error to user.

With Version v3.2.10.0

That error fixed, but with this code:

Autoit also never see this error

My question is: During execute command, Autoit read from one line to last line, but only read lines that true conditions.

Such "1<2" alway true , so Else "MsgBox(" never Autoit check it.

Yes, it does check it, unless you have somehow disabled Syntax Check:

>Running AU3Check (1.54.10.0)  from:C:\Program Files\AutoIt3
C:\temp\Test\Test1.au3(4,37) : ERROR: syntax error
MsgBox(; never this execute command
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
C:\temp\Test\Test1.au3 - 1 error(s), 0 warning(s)
!>13:14:48 AU3Check ended.rc:2
>Exit code: 0   Time: 6.076

[Phstiger]

The AutoIt interpreter is written in C++

I think. Compile language will make a exectable file (file.exe), and interpreter language will check from a first line to last line and not make exectable file.

Wiht C/C++ make exectable file, after run it.

About Autoit, if you talk about Autoit is interpreter language, why can Autoit make exectable file.

do Autoit make exectable file but insite it include source code file and when user run it, it will check every line and interpreter it.

Does it make size of Autoit bigger, because compiler of Autoit is written in C++ language, so executable file of it consit code of: "C++,Autoit"

Sorry, because my skill english quick bad. I am from VietNamese, so many line I don' t understand.....

Edited March 22, 2008 by Phstiger

[Squirrely1]

If AutoIt3 had been compiled from machine code instead of C++, it could have been 74% - 85% of the size it is now. The scripts its compiles could be as small as 89% of the size they are.

The above is a squirrely wild guess - I mean extrapolation.

Edited March 22, 2008 by Squirrely1

[PsaltyDS]

I think. Compile language will make a exectable file (file.exe), and interpreter language will check from a first line to last line and not make exectable file.

Wiht C/C++ make exectable file, after run it.

About Autoit, if you talk about Autoit is interpreter language, why can Autoit make exectable file.

do Autoit make exectable file but insite it include source code file and when user run it, it will check every line and interpreter it.

Does it make size of Autoit bigger, because compiler of Autoit is written in C++ language, so executable file of it consit code of: "C++,Autoit"

Sorry, because my skill english quick bad. I am from VietNamese, so many line I don' t understand.....

The simplest model of an AutoIt "compiled" script is the same as Perl scripts converted to .exe with Perl2Exe:

The interpreter is packed with the original script's text (after parsing compile-time directives and #include files). When you run the .exe the interpreter part interprets the script part.

It's not quite that simple in reality, because there is compression, encryption, and obsfucation of the original script text involved.

You can disable the syntax check and complete the compile of a broken script. But that's a bad idea.

[Phstiger]

Shortly, Autoit is scripting language and The AutoIt interpreter is written in C++.

Executable file of Autoit when interpreter that uncompleted as executable file in C++.

So Autoit's file compiled bigger C++ if they do same work. (include source file and interpreter is written in C++)

So Autoit using UPX for less size of it as the same perl2exe soft.

In Autoit isn't support Class and datatype enum. Most of function in Autoit is define from user (in include directory)

With struct datatype is inherit from Windows API and ???

I need answers true of false. Because, tomorrow I has a seminar about Autoit.

Thanks

Edited March 23, 2008 by Phstiger