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BuildCommDCBAndTimeouts info  Overview  Group

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



Pointer to a null-terminated string that specifies device-control information for the device. The function takes this string, parses it, and then sets appropriate values in the DCB structure pointed to by lpDCB.
Pointer to a DCB structure that the function fills with information from the device-control information string pointed to by lpDef. This DCB structure defines the control settings for a communications device.
Pointer to a COMMTIMEOUTS structure that the function can use to set device time-out values.

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:

Return Values

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.

See Also

BuildCommDCB, COMMTIMEOUTS, DCB, GetCommTimeouts, SetCommTimeouts

file: /Techref/os/win/api/win32/func/src/f03_16.htm, 3KB, , updated: 2000/4/7 12:19, local time: 2022/5/26 12:51,

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