C++ GetUserName()

关于函数“GetUserName()”，参见：https://msdn.microsoft.com/en-us/library/windows/desktop/ms724432(v=vs.85).aspx

IDE: Code::Blocks

操作系统：Windows 7 x64

 #include <windows.h>
 #include <stdio.h>

 using namespace std;

 int main()
 {
     CHAR cUserNameBuffer[];
     DWORD dwUserNameSize = ;

     /* Retrieves the name of the user associated with the current thread. */
     if(GetUserName(cUserNameBuffer, &dwUserNameSize)) {
         printf("The user name is %s \n", cUserNameBuffer);
     }
     else {
         printf("Get user name failed with error: %lu \n", GetLastError());
     }

     return ;
 }