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c# com call


I am able to instantiate and make calls to a com module
that use only primitive data types, but I simply don't
know what the c# equivalent is for a function expecting
short*. Any help would be appreciated.
Nov 15 '05 #1
3 1617
Hi,

Did you call this function as "DllImport" static function?
If so then you can try e.g.:

[DllImport(...)]
public extern static void MyImportedMethod(ref short myShort, ...);

But i can not guarantee it will work...

Regards

Marcin

rasa wrote:
I am able to instantiate and make calls to a com module
that use only primitive data types, but I simply don't
know what the c# equivalent is for a function expecting
short*. Any help would be appreciated.


Nov 15 '05 #2
I tried this, which compiles cleanly, but my app hangs
when I try to run it:

short[] array = new short[16];

foreach ( int i in array )
{
array[i] = 0;
}

fixed (short* dest = array)
{
myobj.SomeFunction(19, 1, ref *dest);
}

-----Original Message-----

I am able to instantiate and make calls to a com module
that use only primitive data types, but I simply don't
know what the c# equivalent is for a function expecting
short*. Any help would be appreciated.
.

Nov 15 '05 #3
There is no equivalent in C#. You can get around this by using unmanaged
code and having a point to a System.Int.32...
Or you could change the params in your COM to a short (then you could just
pass in a System.Int.32 w/o using unmanaged code).
This would be more of a "how do I make calls to managed/unmanaged code from
unmanaged/managed code?" question.

Regards,

Eric
--------------------
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From: "rasa" <ra***********@yaskawa.com>
Sender: "rasa" <ra***********@yaskawa.com>
References: <05****************************@phx.gbl>
Subject: c# com call-- am I getting warm here?
Date: Tue, 26 Aug 2003 10:01:22 -0700
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I tried this, which compiles cleanly, but my app hangs
when I try to run it:

short[] array = new short[16];

foreach ( int i in array )
{
array[i] = 0;
}

fixed (short* dest = array)
{
myobj.SomeFunction(19, 1, ref *dest);
}

-----Original Message-----

I am able to instantiate and make calls to a com module
that use only primitive data types, but I simply don't
know what the c# equivalent is for a function expecting
short*. Any help would be appreciated.
.

--

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Nov 15 '05 #4

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