The BuildCommDCBAndTimeouts function translates a device-definition string into appropriate device-control block codes and then places these codes into a device control block. The function can also set up time-out values, including the possibility of no time-outs, for a device; the function’s behavior in this regard varies based on the contents of the device-definition string.
BOOL BuildCommDCBAndTimeouts(
LPCTSTR lpDef, |
// pointer to the device-control string |
LPDCB lpDCB, |
// pointer to the device-control block |
LPCOMMTIMEOUTS lpCommTimeouts |
// pointer to comm. time-out structure |
); |
The BuildCommDcbAndTimeouts function modifies its time-out setting behavior based on the presence or absence of a “TO=xxx” substring in the string specified by lpDef:
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
BuildCommDCB, COMMTIMEOUTS, DCB, GetCommTimeouts, SetCommTimeouts
file: /Techref/os/win/api/win32/func/src/f03_16.htm, 3KB, , updated: 2000/4/7 11:19, local time: 2024/12/24 11:37,
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