Get Variable pointer

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Get Variable pointer

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deAd
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O.P. Get Variable pointer

How can I get the pointer to a variable? The variable is a string.

07-14-2006 04:50 PM

-dt-
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RE: Get Variable pointer

code:

var str = "moo goes the cow";
var strPtr = Interop.Allocate( (str.length *2) +2);
strPrt.WriteString(0,str);

Debug.Trace("The pointer is ..." + strPtr.DataPtr );

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07-14-2006 05:33 PM

CookieRevised
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RE: Get Variable pointer

quote:
Originally posted by -dt-

code:

var str = "moo goes the cow";
var strPtr = Interop.Allocate( (str.length *2) +2);
strPrt.WriteString(0,str);

Debug.Trace("The pointer is ..." + strPtr.DataPtr );

for deAd: note that this does not give the pointer to the 'str' variable, but rather gives a pointer to another copy of that string.

.-= A 'frrrrrrrituurrr' for Wacky =-.

07-14-2006 08:26 PM

Shondoit
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RE: Get Variable pointer

Maybe a weird question, but how could this be done for a function?
A function is not a string...

I was thinking of subclassing with JScript (Y)

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08-30-2006 12:05 AM

deAd
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O.P. RE: Get Variable pointer

How would you receive the events for subclassing?

And do you mean the function's memory address? nope, you have to be able to write what you want the pointer to in the DataBloc :/

08-30-2006 12:33 AM

Shondoit
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RE: Get Variable pointer

You can Hook the events with SetWindowLong, I'm not sure about the name...
I don't have the time to find the documentation now...

Any other way of getting a pointer?

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08-30-2006 12:47 AM

deAd
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O.P. RE: Get Variable pointer

But when you hook the events, you won't be able to receive the events afaik without an external dll, and in that case you could just subclass in the dll.

08-30-2006 01:12 AM

CookieRevised
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RE: Get Variable pointer

quote:
Originally posted by deAd
But when you hook the events, you won't be able to receive the events afaik without an external dll

What that external DLL does or is used for is to execute a function at a given address (callback), nothing more. Hence why Shondoit asks if it is possible to get a pointer to a function in JScript.
So instead of giving an address for a function in that DLL, you give the address of a function in JScript....

This post was edited on 08-30-2006 at 01:26 AM by CookieRevised.

.-= A 'frrrrrrrituurrr' for Wacky =-.

08-30-2006 01:24 AM

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