code:
void __fastcall TForm1::Button1Click(TObject *Sender)
{
int EMode;EMode = SetErrorMode(SEM_FAILCRITICALERRORS);
try
{
if (DiskSize(1) != -1)
ShowMessage("Disk in drive A: !");
else
ShowMessage("No disk in drive A: !");
}
catch(...) {
SetErrorMode(EMode);
}
}