VC++环境下获取当前输入法名称

CString GetCurrentIme()
{
//LPDWORD pId;
DWORD thId;
//DWORD currentThId;
HKL hkl;
LPSTR buffer;
buffer=new char[255];
::memset(buffer,0,255);
thId=::GetWindowThreadProcessId(gFocus,NULL);
//currentThId=::GetCurrentThreadId();
//::AttachThreadInput(currentThId,thId,TRUE);
hkl=::GetKeyboardLayout(thId);
if (::ImmIsIME(hkl))
{
::ImmGetDescription(hkl,buffer,255);
}
else
{
::ImmGetDescription(hkl,buffer,255);
}
//::MessageBox(NULL,buffer,"aaa",MB_OK);
return buffer;
}