Demo of Spaces API discovered via reverse engineering

SpacesDemo.m

#include <Carbon/Carbon.h>

typedef uint64_t CGSConnection;
extern CGSConnection _CGSDefaultConnection(void);
#define CGSDefaultConnection _CGSDefaultConnection()

typedef uint64_t CGSSpace;
typedef enum _CGSSpaceType {
    kCGSSpaceUser,
    kCGSSpaceFullscreen,
    kCGSSpaceSystem,
    kCGSSpaceUnknown
} CGSSpaceType;
typedef enum _CGSSpaceSelector {
    kCGSSpaceCurrent = 5,
    kCGSSpaceAll = 7
} CGSSpaceSelector;

extern CFArrayRef CGSCopySpaces(const CGSConnection cid, CGSSpaceSelector type);

extern CFArrayRef CGSSpaceCopyOwners(const CGSConnection cid, CGSSpace space);

extern int CGSSpaceGetAbsoluteLevel(const CGSConnection cid, CGSSpace space);
extern void CGSSpaceSetAbsoluteLevel(const CGSConnection cid, CGSSpace space, int level);

extern int CGSSpaceGetCompatID(const CGSConnection cid, CGSSpace space);
extern void CGSSpaceSetCompatID(const CGSConnection cid, CGSSpace space, int compatID);

extern CGSSpaceType CGSSpaceGetType(const CGSConnection cid, CGSSpace space);
extern void CGSSpaceSetType(const CGSConnection cid, CGSSpace space, CGSSpaceType type);

extern CFStringRef CGSSpaceCopyName(const CGSConnection cid, CGSSpace space);
extern void CGSSpaceSetName(const CGSConnection cid, CGSSpace space, CFStringRef name);

extern CFArrayRef CGSSpaceCopyValues(const CGSConnection cid, CGSSpace space);
extern void CGSSpaceSetValues(const CGSConnection cid, CGSSpace space, CFArrayRef values);

typedef uint64_t CGSManagedDisplay;

extern CFArrayRef CGSCopyManagedDisplaySpaces(const CGSConnection cid);

extern bool CGSManagedDisplayIsAnimating(const CGSConnection cid, CGSManagedDisplay display);
extern void CGSManagedDisplaySetIsAnimating(const CGSConnection cid, CGSManagedDisplay display, bool isAnimating);

extern CGSSpace PKGManagedDisplayGetCurrentSpace(const CGSConnection cid, CGSManagedDisplay display);
extern void CGSManagedDisplaySetCurrentSpace(const CGSConnection cid, CGSManagedDisplay display, CGSSpace space);

extern CGSManagedDisplay kCGSPackagesMainDisplayIdentifier;

int main(int argc, char *argv[]) {
    while(1) {
        CFArrayRef spaces = CGSCopySpaces(CGSDefaultConnection, kCGSSpaceAll);

        int i;
        for(i = 0; i < CFArrayGetCount(spaces); i++) {
            CGSSpace space = [CFArrayGetValueAtIndex(spaces, i) intValue];
            CFShow(CGSSpaceCopyName(CGSDefaultConnection, space));
            printf("Space ID: %lld\n", space);
            printf("Absolute level: %d\n", CGSSpaceGetAbsoluteLevel(CGSDefaultConnection, space));
            printf("Compat ID: %d\n", CGSSpaceGetCompatID(CGSDefaultConnection, space));
            printf("Type: %d\n", CGSSpaceGetType(CGSDefaultConnection, space));
            printf("\n");
        }
        printf("-----------------\n");
    }

    return 0;
}