Hello
I would like to find a way to call a function written with pas2js from html code (do not define onclick from pas2js, but call from html)

example
html
?<input type="button" class="form-control" id="btn3" value="direct mode" onclick="Btn1Click();"/>

and the Btn1Click function write it with pas2js.
example
function Btn1Click(aEvent: TJSMouseEvent): boolean;
begin
? //?
end;

How can I do?

For example:

var Btn3: TJSHTMLButtonElement;
Btn3:=TJSHTMLButtonElement(document.getElementById('btn3'));
;

Mattias

All functions live under the top-level "pas" object, per unit.

So

onclick=pas.YourUnit.Yourfunction()

should do it.

Here YourUnit and YourFunction are of course case sensitive.

If the function is in the main program, then you must write

onclick=pas.program.Yourfunction()

with the identifier "program" in lowercase letters.

You must make sure that rtl.run() has been called when the page loads.

Just write your function, and refer to it in the above manner.

Michael.

OP is not subscribed to the list. In your replies, put him in CC.

As I understood the question, it is not how can I set the event in pas2js but how can I refer to a function from HTML.

Michael.

I get this error when calling pas.test.Btn1Click () ;. "TypeError: Cannot read property 'Btn1Click' of undefined".
I am attaching the .js file and the html.

I have another question. If I write a function not used in the program, the compiler does not compile it in the .js file, is there a way to force the compilation even if the function is not used?

Thank you

Il 04/09/19 08:24, Michael Van Canneyt ha scritto:

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Excuse me, it works with "program".

I have another question. If I write a function not used in the program, the compiler does not compile it in the .js file, is there a way to force the compilation even if the function is not used?

Thank you

Il 04/09/19 08:24, Michael Van Canneyt ha scritto:

Compile with -O-

Probably this is the reason why you got the HTML error saying your function does not exist: the compiler removed the unit.

Michael.

First of all: Please subscribe to this list:
https://lists.freepascal.org/cgi-bin/mailman/listinfo/pas2js

[...] I have another question. If I write a function not used in the program, the compiler does not compile it in the .js file, is there a way to force the compilation even if the function is not used?

Either disable this optimization (-OoRemoveNotUsedDeclarations) or use it somewhere (you don't need to call it):

if @Btn1Click=nil then ;

Mattias