/* * Copyright (c) 2008 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* cc -o /tmp/iogt graphics.subproj/IOGraphicsTest.c -framework CoreGraphics -Wall -undefined warning */ #include <CoreGraphics/CoreGraphics.h> #include <IOKit/graphics/IOGraphicsLib.h> #include <stdlib.h> int main( int argc, char * argv[] ) { io_service_t service; CFDictionaryRef dict; CFMutableArrayRef array; CGSError err; int i, j; CGSInitialize(); array = CFArrayCreateMutable( kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks); for( i = 0; i < CGSGetNumberOfDisplays(); i++ ) { err = CGSServiceForDisplayNumber(i, &service); if( err != kCGSErrorSuccess) continue; dict = IOCreateDisplayInfoDictionary( service, kNilOptions ); if( dict) { printf("Display %d\n", i); CFShow(dict); CFRelease(dict); } dict = IOCreateDisplayInfoDictionary( service, kIODisplayMatchingInfo ); if( dict) { printf("Display %d, kIODisplayMatchingInfo\n", i); CFShow(dict); CFArrayAppendValue(array, dict); CFRelease(dict); CFIndex count = CFArrayGetCount(array); for( j = 0; j < count; j++) { printf("%d matches(%ld)\n", j, IODisplayMatchDictionaries( dict, CFArrayGetValueAtIndex(array, j), kNilOptions)); } } } exit(0); return(0); }