Subj : Need to translate one line of Delphi to CPP
To   : borland.public.cpp.borlandcpp
From : "mikeb" <mwbissell@yahoo.com>
Date : Fri Nov 21 2003 06:23 pm


Hi,
I'm trying to port a very simple Delphi app to CPP. I am *not* a win32 programmer and I am *not* a Pascal programmer -- but maybe one of you can make my day.

This is the only line that's got me confused:
    SendMessage(winHandle, WM_COPYDATA, Self.Handle,Integer (@CopyDataStruct));

What's up with Self.Handle? The MS SDK docs for winuser.h bundled with Delphi explain the third param of SendMessage this way:

wParam : Specifies additional message-specific information. 

The window I'm making the call on does not have any documentation associated with it, only this single paltry example.

Can somebody explain Self.Handle in a nutshell, and give me the equivalent call in CPP?

Thanks,

An exasperated but seasoned Java programmer who just wanted to toy with Java Native Interface

.