int CR_RegisterEventCallback(int nDetrIdx, ICallback∗ pCallback ) ; class ICallback { public: ICallback () {}; virtual ˜ ICallback () {}; void virtual Process (int nEventID, CR Event∗ pEvent) {}; }; enum CR EventID { CR EVT SERVER DISCONNECTED, // dropped connection with server CR EVT DETR DISCONNECTED, // dropped connection with detector CR EVT TEMPERATURE INFO, // temperature of the detector CR EVT NEW FRAME, // Arrival of a new frame CR EVT CALIBRATION IN PROGRESS, // Calibration in progress CR EVT CALIBRATION FINISHED, // Completion of calibration CR EVT ACQ STAT INFO // Acquisition of statistical summary }; struct CR Event { int nDetrIdx; int nWidth; // Same as CR ModeInfo.nImageWidth, see A.4 int nHeight; int nPixelDepth; void∗ pData; }; struct CR AcquisitionStatInfo { int nTotalFrameNum; // Total number of frames acquired int nLostFrameNum; // Number of lost frames flfloat fStatFrameRate; flfloat fTransmissionSpeed; long long nAcqDuration; // Duration of image acquisition };python调用为def函数
时间: 2024-04-14 19:25:44 浏览: 31
要在Python中调用这段C++代码,并将其转换为Python函数,可以使用ctypes库来实现。
首先,将枚举类型定义为Python中的整数常量。例如:
```python
CR_EVT_SERVER_DISCONNECTED = 0
CR_EVT_DETR_DISCONNECTED = 1
CR_EVT_TEMPERATURE_INFO = 2
CR_EVT_NEW_FRAME = 3
CR_EVT_CALIBRATION_IN_PROGRESS = 4
CR_EVT_CALIBRATION_FINISHED = 5
CR_EVT_ACQ_STAT_INFO = 6
```
然后,创建回调函数所需的类和方法,并在Process方法中添加相应的逻辑。以下是一个示例代码:
```python
import ctypes
# 定义枚举类型的整数常量
CR_EVT_SERVER_DISCONNECTED = 0
CR_EVT_DETR_DISCONNECTED = 1
CR_EVT_TEMPERATURE_INFO = 2
CR_EVT_NEW_FRAME = 3
CR_EVT_CALIBRATION_IN_PROGRESS = 4
CR_EVT_CALIBRATION_FINISHED = 5
CR_EVT_ACQ_STAT_INFO = 6
# 定义回调函数所需的类和方法
class ICallback(ctypes.Structure):
_fields_ = []
class CCallbackImp(ICallback):
def Process(self, nEventID, pEvent):
if nEventID == CR_EVT_NEW_FRAME:
print("Frame Index =", ctypes.cast(pEvent, ctypes.POINTER(ctypes.c_int)).contents.value)
# 加载C++动态链接库
mylib = ctypes.cdll.LoadLibrary("your_cpp_library.so")
# 注册回调函数
mylib.CR_RegisterEventCallback.argtypes = [ctypes.c_int, ctypes.POINTER(ICallback)]
mylib.CR_RegisterEventCallback.restype = ctypes.c_int
# 创建回调函数的实例
callback = CCallbackImp()
# 定义Python函数,用于调用CR_RegisterEventCallback函数
def register_event_callback(nDetrIdx, callback):
return mylib.CR_RegisterEventCallback(nDetrIdx, ctypes.byref(callback))
```
在上面的示例中,我们首先定义了与C++枚举类型中的值对应的Python整数常量。然后,创建了ICallback和CCallbackImp类,并在CCallbackImp类中实现了Process方法,并根据nEventID的值来执行相应的逻辑,这里我们以打印输出为例。
接着,使用ctypes库加载了C++动态链接库,并设置了CR_RegisterEventCallback函数的参数类型和返回类型。最后,创建了回调函数的实例callback,并将其传递给CR_RegisterEventCallback函数进行注册。
最后,我们将CR_RegisterEventCallback函数的调用封装在一个Python函数register_event_callback中,以便在Python中调用。
请确保在Python代码中正确加载和调用C++动态链接库,并传递正确的枚举类型值和回调函数实例作为参数。根据实际情况,可能需要调整代码以适应你的需求。
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