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/*
Psychtoolbox3/Source/Common/SCREENIsOffscreen.c
AUTHORS:
Allen.Ingling@nyu.edu awi
PLATFORMS:
Only OS X for now.
HISTORY:
1/27/03 awi Created.
DESCRIPTION:
Accept a vector of window pointers and return a vector of flags indicating whether the windows are offscreen or onscreen.
TO DO:
*/
#include "Screen.h"
// If you change useString then also change the corresponding synopsis string in ScreenSynopsis.c
static char useString[] = "isOffscreen=Screen(windowPtr,'IsOffscreen');";
static char synopsisString[] =
"Find out whether window is offscreen. Responses: 1=yes; 0=no";
static char seeAlsoString[] = "WindowKind";
PsychError SCREENIsOffscreen(void)
{
int i,numWindows, *windowIndices;
PsychWindowRecordType *winRec;
PsychFlagListType flagList;
//all sub functions should have these two lines
PsychPushHelp(useString, synopsisString, seeAlsoString);
if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);};
PsychErrorExit(PsychCapNumOutputArgs(1));
PsychErrorExit(PsychCapNumInputArgs(1));
PsychAllocInIntegerListArg(1, TRUE, &numWindows, &windowIndices);
PsychAllocOutFlagListArg(1, FALSE, numWindows, &flagList); //flag lists are opaque.
for(i=0;i<numWindows;i++){
FindWindowRecord(windowIndices[i], &winRec);
if(winRec==NULL)
PsychErrorExit(PsychError_invalidWindex);
else
PsychLoadFlagListElement(i, PsychIsOffscreenWindow(winRec), flagList);
}
return(PsychError_none);
}
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