将 System::String^ 转换为 cv::String

Question

我搜索了一段时间试图找到是否有类似的问题，但找不到。

如何将System::String^（来自VC++）转换为cv::String（来自OpenCV）？

double x, y;
x = 10;
y = 10;
System::String ^ displayString = System::String::Concat("( ", x, " , ", y, " )");
char * test1 = displayString->ToCharArray;
cv::String test = cv::String(test1)

给出错误

Severity    Code    Description Project File    Line    Suppression State
Error   C3867   'System::String::ToCharArray': non-standard syntax; use '&' to create a pointer to member   RobocopComputerVision   RobocopComputerVision   .cpp    156 

将System::String^ 转换为cv::String 的最佳方法是什么？

Answer 1

试试这个，

#include <msclr\marshal_cppstd.h>
using namespace msclr::interop;
/* ... ... */
System::String ^ displayString = System::String::Concat("( ", x, " , ", y,")");
cv::String test = marshal_as<std::string>(displayString);