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/*
/osxptb/trunk/PsychSourceGL/Source/OSX/Eyelink/EyelinkReadTime.c
PROJECTS: Eyelink
AUTHORS:
E.Peters@ai.rug.nl emp
f.w.cornelissen@rug.nl fwc
PLATFORMS: Currently only OS X
HISTORY:
28/06/06 fwc adapted from alpha version
TARGET LOCATION:
Eyelink.mexmac resides in:
PsychHardware/EyelinkToolbox/EyelinkBasic
*/
#include "PsychEyelink.h"
static char useString[] = "[time =] Eyelink('ReadTime')";
static char synopsisString[] =
"checks for reply to eyelink_request_time()\n"
"returns: 0 if no reply, else time \n";
static char seeAlsoString[] = "";
/*
ROUTINE: EyelinkReadTime
PURPOSE:
checks for reply to eyelink_request_time()
returns: 0 if no reply, else time
*/
PsychError EyelinkReadTime(void)
{
UINT32 time;
//all sub functions should have these two lines
PsychPushHelp(useString, synopsisString, seeAlsoString);
if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);};
//check to see if the user supplied superfluous arguments
PsychErrorExit(PsychCapNumInputArgs(0));
PsychErrorExit(PsychRequireNumInputArgs(0));
PsychErrorExit(PsychCapNumOutputArgs(1));
// Verify eyelink is up and running
EyelinkSystemIsConnected();
EyelinkSystemIsInitialized();
time = eyelink_read_time();
PsychCopyOutDoubleArg(1, FALSE, time);
return(PsychError_none);
}
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