1/* 2 * Copyright (c) 2008 Apple Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23/* 24cc -o /tmp/iogt graphics.subproj/IOGraphicsTest.c -framework CoreGraphics -Wall -undefined warning 25*/ 26 27#include <CoreGraphics/CoreGraphics.h> 28#include <IOKit/graphics/IOGraphicsLib.h> 29#include <stdlib.h> 30 31int main( int argc, char * argv[] ) 32{ 33 io_service_t service; 34 CFDictionaryRef dict; 35 CFMutableArrayRef array; 36 CGSError err; 37 int i, j; 38 39 CGSInitialize(); 40 41 array = CFArrayCreateMutable( kCFAllocatorDefault, 0, 42 &kCFTypeArrayCallBacks); 43 44 for( i = 0; i < CGSGetNumberOfDisplays(); i++ ) { 45 err = CGSServiceForDisplayNumber(i, &service); 46 if( err != kCGSErrorSuccess) 47 continue; 48 49 dict = IOCreateDisplayInfoDictionary( service, kNilOptions ); 50 if( dict) { 51 printf("Display %d\n", i); 52 CFShow(dict); 53 CFRelease(dict); 54 } 55 56 dict = IOCreateDisplayInfoDictionary( service, 57 kIODisplayMatchingInfo ); 58 if( dict) { 59 printf("Display %d, kIODisplayMatchingInfo\n", i); 60 CFShow(dict); 61 62 CFArrayAppendValue(array, dict); 63 CFRelease(dict); 64 CFIndex count = CFArrayGetCount(array); 65 for( j = 0; j < count; j++) { 66 printf("%d matches(%ld)\n", j, 67 IODisplayMatchDictionaries( dict, 68 CFArrayGetValueAtIndex(array, j), kNilOptions)); 69 } 70 } 71 } 72 73 exit(0); 74 return(0); 75} 76 77