Fix macOS 15.0+ Compilation Error

Actions/ColorPickerAction.m

@@ -28,6 +28,7 @@
 
 #import "ColorPickerAction.h"
 #import "MouseBaseAction.h"
+#import "ScreenCaptureCompat.h"
 
 @implementation ColorPickerAction
 
@@ -82,14 +83,27 @@ - (void)performActionWithData:(NSString *)data
             p.x = [MouseBaseAction getCoordinate:[coords objectAtIndex:0] forAxis:XAXIS];
             p.y = [MouseBaseAction getCoordinate:[coords objectAtIndex:1] forAxis:YAXIS];
 
-            CGRect imageRect = CGRectMake(p.x, p.y, 1, 1);
-            CGImageRef imageRef = CGWindowListCreateImage(imageRect, kCGWindowListOptionOnScreenOnly, kCGNullWindowID, kCGWindowImageDefault);
-            NSBitmapImageRep *bitmap = [[NSBitmapImageRep alloc] initWithCGImage:imageRef];
-            CGImageRelease(imageRef);
-            NSColor *color = [bitmap colorAtX:0 y:0];
-            [bitmap release];
-
-            [options.commandOutputHandler write:[NSString stringWithFormat:@"%d %d %d\n", (int)(color.redComponent*255), (int)(color.greenComponent*255), (int)(color.blueComponent*255)]];
+            // Use compatibility layer for screen capture
+            NSColor *color = SCCompatGetColorAtPoint(p);
+
+            if (color != nil) {
+                [options.commandOutputHandler write:[NSString stringWithFormat:@"%d %d %d\n", 
+                    (int)(color.redComponent * 255), 
+                    (int)(color.greenComponent * 255), 
+                    (int)(color.blueComponent * 255)]];
+            } else {
+                // Enhanced error reporting with compatibility info
+                NSString *compatMode = SCCompatGetCaptureModeDescription();
+                NSString *errorMsg;
+
+                if (!SCCompatIsScreenCaptureAvailable()) {
+                    errorMsg = [NSString stringWithFormat:@"Screen capture not available. %@ Please grant Screen Recording permission in System Preferences → Security & Privacy → Privacy → Screen Recording.", compatMode];
+                } else {
+                    errorMsg = [NSString stringWithFormat:@"Failed to capture pixel at coordinates %i,%i using %@. The location may be off-screen or inaccessible.", (int)p.x, (int)p.y, compatMode];
+                }
+
+                [NSException raise:@"ColorCaptureException" format:@"%@", errorMsg];
+            }
         }
     }
 }

Actions/ScreenCaptureCompat.h

@@ -0,0 +1,127 @@
+/**
+ * Copyright (c) 2007-2021, Carsten Blüm <carsten@bluem.net>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice, this
+ *   list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ * - Neither the name of Carsten Blüm nor the names of his contributors may be
+ *   used to endorse or promote products derived from this software without specific
+ *   prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef ScreenCaptureCompat_h
+#define ScreenCaptureCompat_h
+
+#import <Foundation/Foundation.h>
+#import <CoreGraphics/CoreGraphics.h>
+#import <Cocoa/Cocoa.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Screen Capture Compatibility Layer
+ * 
+ * This module provides a unified interface for screen capture functionality
+ * that works across different macOS versions:
+ * 
+ * - macOS 10.15 - 12.2: Uses CGWindowListCreateImage (deprecated in 15.0)
+ * - macOS 12.3+: Uses ScreenCaptureKit framework
+ * - macOS 15.0+: ScreenCaptureKit only (CGWindowListCreateImage unavailable)
+ * 
+ * The implementation automatically detects the runtime OS version and uses
+ * the most appropriate API available.
+ */
+
+/**
+ * Error codes for screen capture operations
+ */
+typedef NS_ENUM(NSInteger, SCCompatError) {
+    SCCompatErrorNone = 0,
+    SCCompatErrorUnsupportedOS = -1000,
+    SCCompatErrorNoPermission = -1001,
+    SCCompatErrorCaptureFailure = -1002,
+    SCCompatErrorInvalidRect = -1003,
+    SCCompatErrorUnknown = -1999
+};
+
+/**
+ * Result structure for screen capture operations
+ * Caller is responsible for releasing the CGImageRef if non-NULL
+ */
+typedef struct {
+    CGImageRef imageRef;        // NULL on failure, caller must CFRelease when done
+    SCCompatError errorCode;    // Error code if imageRef is NULL
+    NSString *errorMessage;     // Human-readable error description (autoreleased)
+} SCCompatCaptureResult;
+
+/**
+ * Captures a single pixel from the screen at the specified coordinates
+ * 
+ * This function provides a unified interface that works on all supported
+ * macOS versions. It automatically selects the best available capture method
+ * based on the runtime OS version and API availability.
+ *
+ * @param rect The screen rectangle to capture (typically 1x1 pixel for color picking)
+ * @return SCCompatCaptureResult structure with either a valid CGImageRef or error info
+ * 
+ * @note The caller MUST call CFRelease() on the returned imageRef if it's non-NULL
+ * @note This function is thread-safe but may block briefly during capture
+ * @note On first call, may prompt user for screen recording permissions on macOS 10.15+
+ */
+SCCompatCaptureResult SCCompatCaptureScreenRect(CGRect rect);
+
+/**
+ * Convenience function to get the color at a specific screen point
+ * 
+ * @param point The screen coordinate to sample
+ * @return NSColor object representing the pixel color, or nil on failure
+ * 
+ * @note This function handles the CGImageRef lifecycle internally
+ * @note The returned NSColor is autoreleased
+ */
+NSColor* SCCompatGetColorAtPoint(CGPoint point);
+
+/**
+ * Check if screen capture is available and permitted
+ * 
+ * @return YES if screen capture should work, NO if not available or no permission
+ * 
+ * @note This performs a lightweight check without actually capturing
+ * @note On macOS 10.15+, this checks for Screen Recording permission
+ */
+BOOL SCCompatIsScreenCaptureAvailable(void);
+
+/**
+ * Get a human-readable description of the current screen capture method
+ * 
+ * @return NSString describing which API is being used (for debugging/logging)
+ * 
+ * @note The returned string is autoreleased
+ * @note Useful for troubleshooting compatibility issues
+ */
+NSString* SCCompatGetCaptureModeDescription(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ScreenCaptureCompat_h */