duration of function

Hi.
I´m creating software for control a device , but i have problem.

Code:

...
Data = 0;
i = 0;
while( i < NumberOfGate ){
	if(FALSE == C8855ReadData( 	hC8855,
					&CntData,
					&ResultReturned)){;

		Form1->Memo2->Lines->Add("Read data ERROR.");
		return;
	 }
	Data = CntData + Data;
	 i++;
	 if( Terminated ) break;
}
DataArray[z] = Data ;
...

Function C8855ReadData() read out data from device. Sometime is data lost by transmission of signal. At that time function (and software) to freeze, because still waiting to data.
I need fixed this problem.

Exist a function according any maximal time to executing my function
( C8855ReadData() )?

thx .... PoolO

You will need to put this data grabbing into a thread of it's own, so you can wait for completion and if it does not finish in a set amount of time, do something about it (cancel, retry or whatever).

Apart from the spawning a thread, another way is to use asynchronous read/write APIs.