Message
From
28/09/2006 09:35:09
To
28/09/2006 09:04:21
General information
Forum:
Visual FoxPro
Category:
ActiveX controls in VFP
Title:
Environment versions
Visual FoxPro:
VFP 8
OS:
Windows 2000 SP2
Miscellaneous
Thread ID:
01157804
Message ID:
01157825
Views:
24
>Viv,
>
>>It's not assigning a variable - it's sending the string to the transmit buffer. I guess if you want it to go faster you need a faster baud rate...
>
>Correct, but only to a point. Try the following:
>
>buffcount wil always be 0. Control doesn't return to VFP until the entire output buffer is empty.
ouch :(
the device only seems to operate at 19,600 .
The buffer size is the vast majority of the time between 75 and 115 characters .
So now I'm wondering:
we are polling the device for an ACK , could we short circuit the app by just checking the mscomm object to see if the OUTPUT all went out?
>
>>It's not assigning a variable - it's sending the string to the transmit buffer. I guess if you want it to go faster you need a faster baud rate...
>
>Correct, but only to a point. Try the following:
>
>sendstart = SECONDS() >this.mscomm1.output = SPACE(100) >buffcount = this.mscomm1.outBufferCount >sendend = SECONDS() >outputtime = sendend-sendstart >>
>buffcount wil always be 0. Control doesn't return to VFP until the entire output buffer is empty.
ouch :(
the device only seems to operate at 19,600 .
The buffer size is the vast majority of the time between 75 and 115 characters .
So now I'm wondering:
we are polling the device for an ACK , could we short circuit the app by just checking the mscomm object to see if the OUTPUT all went out?