L
lfqbl
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GUEST, unregistred user!
我这样写为什么是错误的:
sport:=Format('//./LPT%d', [nPort]);
m_hPort:= CreateFile(pchar(sPort), GENERIC_READ or GENERIC_WRITE, 0,nil, OPEN_EXISTING, 0, NULL);
sport是STRING,nPort是INTEGER, m_hPort是THANDLE;
sport:=Format('//./LPT%d', [nPort]);
m_hPort:= CreateFile(pchar(sPort), GENERIC_READ or GENERIC_WRITE, 0,nil, OPEN_EXISTING, 0, NULL);
sport是STRING,nPort是INTEGER, m_hPort是THANDLE;