string转LPCSTR\LPCWSTR示例

1、string类型转LPCSTR

string str="abcd";
LPCSTR str1=str.c_str();

2、string类型转LPCWSTR

       自定义函数 str2LPCWSTR

• 方法一

LPCWSTR stringtoLPCWSTR(string str){
    size_t strsize = str.length() + 1;
    const size_t newsize = 100;
    size_t convertedChars = 0;
    wchar_t* wcstring = (wchar_t*)malloc(sizeof(wchar_t) * (str.length() - 1));
    mbstowcs_s(&convertedChars, wcstring, strsize, orig.c_str(), _TRUNCATE);
    return wcstring;
    
}

例子：

string str="abcd";
LPCWSTR str1=str2LPCWSTR(str);

• 方法二

LPCWSTR str2LPCWSTR( string str) {
	int len = str.length();
	int lenbf = MultiByteToWideChar(CP_ACP, 0, str.c_str(), len, 0, 0);
	wchar_t* buffer = new wchar_t[lenbf];
	MultiByteToWideChar(CP_ACP, 0, str.c_str(), len, buffer, sizeof(wchar_t) * lenbf);
	buffer[len] = 0;
	return buffer;
}

 

 

 

 

来源：CSDN

作者：一只小白的进阶

链接：https://blog.csdn.net/qq_39570626/article/details/103793037