matlab与c/c​++混编如何生成指向​外部常量结构体的指针​？

最近在用matlab调用相机，相机有二次开发包里面有封装好的c语言编写的dll文件，但是里面的函数需要指向相机信息结构体的指针作为输入，我感觉并不是传递参数，而是传递一个地址，这个matlab可以实现吗，希望大家赐教

Answer 1

[Ayush]

我将用英语回答您的询问

You can pass the pointer to camera information structure as an input to the function as shown in the code below:

% Create a pointer to the camera information structure 
cameraInfoPtr = libpointer('your_structure_type', yourCameraInfo); 
% Call the DLL function with the pointer 
calllib('your_dll_file.dll', 'your_dll_function', cameraInfoPtr); 

where,

1. 'your_structure_type' is the appropriate structure type defined in the DLL
2. 'your_dll_function' with the name of the DLL function you want to call.
3. your_dll_file.dll" is the actual name of your DLL file.

Also, ensure that the DLL file is located in the MATLAB search path or specify the full file path if it is located elsewhere.

You may refer to the documentation here: Pointer object for use with shared C library - MATLAB libpointer - MathWorks India