source: trunk/LocationDo/brightness.m@ 196

Last change on this file since 196 was 196, checked in by Nicholas Riley, 17 years ago

LocationDo

File size: 1.8 KB
Line 
1/* gcc -o brightness -framework Cocoa -framework DisplayServices -F/System/Library/PrivateFrameworks brightness.m */
2
3#import <Foundation/Foundation.h>
4
5@interface O3Manager : NSObject
6+ (void)initialize;
7+ (id)engineOfClass:(NSString *)cls forDisplayID:(CGDirectDisplayID)fp12;
8@end
9
10@protocol O3EngineWireProtocol
11@end
12
13@protocol BrightnessEngineWireProtocol <O3EngineWireProtocol>
14- (float)brightness;
15- (BOOL)setBrightness:(float)fp8;
16- (void)bumpBrightnessUp;
17- (void)bumpBrightnessDown;
18@end
19
20const int kMaxDisplays = 16;
21
22int main(int argc, const char *argv[])
23{
24 CGDirectDisplayID display[kMaxDisplays];
25 CGDisplayCount numDisplays;
26 CGDisplayCount i;
27 CGDisplayErr err;
28
29 [[NSAutoreleasePool alloc] init];
30 [O3Manager initialize];
31
32 err = CGGetActiveDisplayList(kMaxDisplays, display, &numDisplays);
33 if (err != CGDisplayNoErr) {
34 NSLog(@"Cannot get displays (%d)", err);
35 exit(1);
36 }
37 printf("%d displays found", (int)numDisplays);
38 for ( i = 0; i < numDisplays; ++i ) {
39 CGDirectDisplayID dspy = display[i];
40 CFDictionaryRef originalMode;
41
42 originalMode = CGDisplayCurrentMode(dspy);
43 if (originalMode == NULL)
44 continue;
45
46 NSLog(@"Display 0x%x: %@", (unsigned int)dspy, originalMode);
47
48 if ([[(NSDictionary *)originalMode objectForKey: @"RefreshRate"] intValue] == 0) {
49 id<BrightnessEngineWireProtocol> engine =
50 [O3Manager engineOfClass: @"BrightnessEngine" forDisplayID: dspy];
51 NSLog(@"Engine: %@", engine);
52 NSLog(@"Brightness was %f", [engine brightness]);
53 if (argc == 2) {
54 float newBrightness = [[NSString stringWithCString: argv[1]] floatValue];
55 if (newBrightness < 0. || newBrightness > 1.) {
56 NSLog(@"Brightness should be between 0 and 1");
57 exit(1);
58 }
59 [engine setBrightness: newBrightness];
60 NSLog(@"Brightness is now %f", [engine brightness]);
61 }
62 }
63 }
64 exit(0);
65}
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