GetUserName and apigetusername for Windows API Learning

GetUserName and apigetusername for Windows API Learning

1 # include <stdio. h> 2 # include <windows. h> 3 4 # define INFO_BUFFER_SIZE 32767 5 6 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) 7 {8 TCHAR infoBuf [INFO_BUFFER_SIZE]; 9 DWORD bufCharCount = INFO_BUFFER_SIZE; 10 if (! GetUserName (infoBuf, & bufCharCount) 11 {12 MessageBox (NULL, TEXT ("unable to get username"), TEXT ("error"), MB_ICONSTOP | MB_ OK ); 13} 14 else 15 {16 char istr [INFO_BUFFER_SIZE]; 17 sprintf (istr, "welcome to use this program. The current user name is \ r \ n % s", infoBuf ); 18 MessageBox (NULL, TEXT (istr), "MSG", MB_ OK); 19} 20 return 0; 21}