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/*
SCREENWindows.c
AUTHORS:
Allen.Ingling@nyu.edu awi
PLATFORMS:
Only OS X for now.
HISTORY:
1/24/03 awi Created.
DESCRIPTION:
Return a list of the window pointers for all open windows.
TO DO:
*/
#include "Screen.h"
// If you change useString then also change the corresponding synopsis string in ScreenSynopsis.c
static char useString[] = "windowPtrs=Screen('Windows');";
static char synopsisString[] =
"Return a vector of windowPtrs, including on- and off-screen windows. "
"n=length(Screen('Windows')) is a handy way to count them. ";
static char seeAlsoString[] = "";
PsychError SCREENWindows(void)
{
PsychWindowRecordType **windowRecordArray;
int i,numWindows;
double *windowPointers;
//all sub functions should have these two lines
PsychPushHelp(useString, synopsisString, seeAlsoString);
if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);};
PsychErrorExit(PsychCapNumOutputArgs(1));
PsychErrorExit(PsychCapNumInputArgs(0));
PsychCreateVolatileWindowRecordPointerList(&numWindows, &windowRecordArray);
PsychAllocOutDoubleMatArg(1, FALSE, 1, numWindows, 0, &windowPointers);
for(i=0;i<numWindows;i++)
windowPointers[i]=windowRecordArray[i]->windowIndex;
PsychDestroyVolatileWindowRecordPointerList(windowRecordArray);
return(PsychError_none);
}
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