# import cv2

# class CameraViewer:
#     def __init__(self, device_index=0):
#         self.device_index = device_index
#         self.window_name = "Camera Viewer"
        
#     def start_stream(self):
#         cap = cv2.VideoCapture(self.device_index)
#         if not cap.isOpened():
#             print(f"无法打开摄像头设备 {self.device_index}")
#             return
            
#         cv2.namedWindow(self.window_name, cv2.WINDOW_NORMAL)
        
#         while True:
#             ret, frame = cap.read()
#             if not ret:
#                 print("无法获取视频帧")
#                 break
                
#             cv2.imshow(self.window_name, frame)
            
#             if cv2.waitKey(1) & 0xFF == ord('q'):
#                 break
                
#         cap.release()
#         cv2.destroyAllWindows()

# if __name__ == "__main__":
#     # 修改这里的数字可以切换不同摄像头设备
#     viewer = CameraViewer(device_index=1)
#     viewer.start_stream()
# import os
# import pefile

# def list_dll_exports(dll_path):
#     """解析 DLL 并返回导出的函数列表"""
#     try:
#         pe = pefile.PE(dll_path)
#         exports = []
#         if hasattr(pe, 'DIRECTORY_ENTRY_EXPORT'):
#             for exp in pe.DIRECTORY_ENTRY_EXPORT.symbols:
#                 if exp.name:
#                     exports.append(exp.name.decode('utf-8'))
#                 else:
#                     exports.append(f"Ordinal_{exp.ordinal}")
#         return exports
#     except Exception as e:
#         print(f"[错误] 无法解析 {dll_path}: {e}")
#         return []

# def scan_directory_for_dll_functions(directory):
#     """扫描目录下所有 DLL 文件并解析导出函数"""
#     results = {}
#     for root, _, files in os.walk(directory):
#         for file in files:
#             if file.lower().endswith(".dll"):
#                 dll_path = os.path.join(root, file)
#                 print(f"\n正在解析: {dll_path}")
#                 funcs = list_dll_exports(dll_path)
#                 results[dll_path] = funcs
#                 for func in funcs:
#                     print(f"  {func}")
#     return results

# if __name__ == "__main__":
#     folder_path = r"D:\BodyBalanceEvaluation\backend\tests"  # 这里改成你的 DLL 文件目录
#     scan_directory_for_dll_functions(folder_path)
import ctypes

dll_path = r"D:\BodyBalanceEvaluation\backend\tests\SMiTSenseUsb-F3.0.dll"
mydll = ctypes.WinDLL(dll_path)

class FPMS_DEVICE_C(ctypes.Structure):
    _fields_ = [
        ("mn", ctypes.c_uint8),
        ("sn", ctypes.c_char * 32),
        ("swVersion", ctypes.c_char * 32),
        ("rows", ctypes.c_uint16),
        ("cols", ctypes.c_uint16)
    ]

# 声明
mydll.fpms_usb_init.argtypes = [ctypes.c_int]
mydll.fpms_usb_init.restype = ctypes.c_int

mydll.fpms_usb_get_device_list.argtypes = [
    ctypes.POINTER(FPMS_DEVICE_C),
    ctypes.POINTER(ctypes.c_int)
]
mydll.fpms_usb_get_device_list.restype = ctypes.c_int

# 初始化
print("init:", mydll.fpms_usb_init(0))

# 获取设备列表
device_count = ctypes.c_int()
devices = (FPMS_DEVICE_C * 10)()
res = mydll.fpms_usb_get_device_list(devices, ctypes.byref(device_count))
print("get_device_list 返回值:", res, "设备数量:", device_count.value)

# 打印设备信息
for i in range(device_count.value):
    dev = devices[i]
    print(f"[设备 {i}] mn={dev.mn}, sn={dev.sn.decode(errors='ignore')}, "
          f"swVersion={dev.swVersion.decode(errors='ignore')}, rows={dev.rows}, cols={dev.cols}")