问题描述
我一直在寻找这么长的解决方案，但我找不到任何具体的。我在Visual Studio C ++，窗体窗体应用程序。我需要将 String ^ 值转换为char数组。
我已存储来自中的 TextBox 的值 String ^ ：
I have been looking so long for this solution but I can't find nothing specific. I work in Visual Studio C++, windows forms app. I need to convert String^ value into char array.I have stored value from TextBox in String^:
String^ target_str = targetTextBox->Text;
// lets say that input is "Need this string"
需要转换此 String ^ 并获得类似于以下内容的输出：
I need to convert this String^ and get output similar to this:
char target[] = "Need this string";
如果定义为 char target [] 它工作，但我想从 TextBox 。
If it is defined as char target[] it works but I want to get this value from TextBox.
得到这个值我已经尝试了编组，但它没有工作。是否有任何解决方案如何做到这一点？
I have tried marshaling but it didn't work. Is there any solution how to do this?
我已经找到如何将 std :: string c $ c> char 数组，所以另一种方式如何解决这是转换 String ^ 到 std :: string 但我也有这个问题。
I have found how to convert std::string to char array so another way how to solve this is to convert String^ to std::string but I have got problems with this too.
推荐答案
最好的办法是遵循。
以下是一些示例代码：
String^ test = L"I am a .Net string of type System::String";
IntPtr ptrToNativeString = Marshal::StringToHGlobalAnsi(test);
char* nativeString = static_cast<char*>(ptrToNativeString.ToPointer());
这样做的原因是因为.Net字符串显然是一个GC'd对象，公共语言运行时，并且您需要通过使用InteropServices边界跨过CLI边界。祝你好运。
The reason for this is because a .Net string is obviously a GC'd object that's part of the Common Language Runtime, and you need to cross the CLI boundary by employing the InteropServices boundary. Best of luck.
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