calling dll with callback from windows/linux

General
1

I want to call a dll from windows.

it would have stand “C” inteface,and allows me to

extern “C” ConnectandFetch(char* pHost,int Port, callback_ptr1,callback_ptr2); //this would make a thread innner.

well,I don’kt know how to use the callback ,so that when the data comming.

the main.exe made by XOJO could fire the callback well?

what if I use the second way?

I build a console program with the DLL name “test.exe” ,and use IPCsocket to connect my main.exe?

2

Call the method using declare, setting the parameter of the callback to

AddressOf FunctionToBeCalledByDLL

3

can this invoke the callback in the dll’s thread??

4

it’s better to do this in calllback… or I will consider using socket if no other advise…