"""剪贴板图片保存为 PNG — win32clipboard + PIL 混合方案
检测用 ctypes (快), 保存用 PIL (兼容性好)
"""
import sys
import ctypes

def save_clipboard_image(output_path):
    # 快速检测 (ctypes, <1ms)
    if not ctypes.windll.user32.IsClipboardFormatAvailable(8):  # CF_DIB
        print("NO_IMAGE", file=sys.stderr)
        sys.exit(1)

    # 保存 (PIL ImageGrab, ~80ms)
    try:
        from PIL import ImageGrab
        img = ImageGrab.grabclipboard()
        if img is None:
            sys.exit(1)
        img.save(output_path, "PNG", optimize=False)
        print(output_path)
    except Exception as e:
        print(f"ERROR: {e}", file=sys.stderr)
        sys.exit(1)

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: clipboard-save.py <output_path>", file=sys.stderr)
        sys.exit(1)
    save_clipboard_image(sys.argv[1])