ClearScreen
virtual void ClearScreen() = 0;
efi_status (*ClearScreen) (struct efi_simple_text_output_protocol* self) EFIAPI;
ClearScreen(&gScreen->RastPort);
LP1NR(0x30, ClearScreen, struct RastPort *, last, a1, \
void ClearScreen();
virtual void ClearScreen();
kSystemTable->ConOut->ClearScreen(kSystemTable->ConOut);
virtual void ClearScreen();
gConsoleNode->ClearScreen();
virtual void ClearScreen();
ClearScreen();
virtual void ClearScreen();
virtual void ClearScreen();
sConsole.ClearScreen();
virtual void ClearScreen();
virtual void ClearScreen();