Comtrol API (6508) for the MS-DOS User Manual
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API Functions
aaSetCloseDelay
aaSetCloseDelay
Sets the maximum time aaClose() waits for a device’s
transmit buffer to drain before flushing the transmit
buffer and completing the close.
aaSetCloseDelay(Dev,MaxDelay)
int Dev
Device number
int MaxDelay
Maximum time aaClose will
wait for a device’s transmit
buffer to drain in seconds. For
no delay use 0. Maximum value
is 32,767 seconds.
int:
NO_ERR
if successful.
ERR_DEV
if device number out of range.
The device does not need to be open to execute this
function.
Function
Purpose
Call
Return
Comments
aaWrite
Writes serial data out a device.
aaWrite(Dev,Cnt,Buf)
int Dev:
Device number
int Cnt:
Number of bytes to be
written
unsigned char *Buf:
Buffer of data to write
int: Number of bytes written
if successful
0
if no data bytes written
ERR_DEV
if dev number out of
range
ERR_NOTOPEN
if dev not open for
transmit
The Cnt parameter should not be greater than the size
of the Buf transmit buffer.
Function
Purpose
Call
Return
Warning