[MacTUG] SafariFullScreen but not "Full Screen"

[Dani Roloson]

I had to give up on Swift since passing an array as a parameter is apparently a dark art.
Quartz Display Services has to be used and the closest example was in plain old C
(no bloody ++, Objective, or Objective ++) .

This will give the width and height in pixels for all displays. e.g.
1920 1080
1600 1200
Compiled under 10.10 and runs under 10.8.


//

//  main.c

//

//  clang -framework CoreGraphics -o mydrc main.c

//


#include <stdio.h>

#include <CoreGraphics/CoreGraphics.h>


#define MAX_DISPLAYS 16


int main() {


    CGError dErr;

    CGDisplayCount displaycount, i;

    CGDisplayCount maxDisplays = MAX_DISPLAYS;

    CGDirectDisplayID onlineDisplays[MAX_DISPLAYS];


    dErr = CGGetOnlineDisplayList(maxDisplays, onlineDisplays, &displaycount);

    if (dErr != kCGErrorSuccess) {

        fprintf(stderr, "CGGetOnlineDisplayList: error %d.\n", dErr);

        exit(1);

    }

    for(i = 0; i < displaycount; i++) {

        CGDirectDisplayID dID = onlineDisplays[i];

        printf("%lu %lu\n", CGDisplayPixelsWide(dID), CGDisplayPixelsHigh(dID));


    }

    return 0;

}
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