windows下获得当前用户名的小代码,ring3级别

#include <windows.h>
#include <WtsApi32.h>

#pragma comment(lib, "WtsApi32.lib")
#define Message(X) MessageBox(0, X, "DEBUG", MB_ICONINFORMATION)



int getUserName(char *username)
{
 

    LPTSTR pBuffer = NULL;
    DWORD dwBufferLen;
    
    BOOL bRes = WTSQuerySessionInformation(WTS_CURRENT_SERVER_HANDLE, WTS_CURRENT_SESSION, WTSUserName, &pBuffer, &dwBufferLen);
    
    if (bRes == FALSE)
    return 0;
    
    strcpy(username, pBuffer);
    WTSFreeMemory(pBuffer);

    Message(username);    

    return 1;
}



int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
    char usrName[200];
    getUserName(usrName);
}

 

在XP中的运行结果如下：