CT3Comm Library QuestionThis is a discussion on CT3Comm Library Question within the xharbour forums in Programming Languages category; I am using the CT3Comm library in vXh, but cannot seem to get the com_dcd() function to work at all. I am able to open the port, initialize it, send and receive data, but when I create a loop to look for modem carrier (DCD), it never detects the carrier. I have confirmed the cabling and can see the DCD activate using a com port monitor. Has anyone used this function? I am using a standalone modem on COM1.... | ||||||||
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#1
08-09-2008, 10:36 PM
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 CT3Comm Library Question I am using the CT3Comm library in vXh, but cannot seem to get the com_dcd() function to work at all. I am able to open the port, initialize it, send and receive data, but when I create a loop to look for modem carrier (DCD), it never detects the carrier. I have confirmed the cabling and can see the DCD activate using a com port monitor. Has anyone used this function? I am using a standalone modem on COM1.  |
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#2
08-10-2008, 09:20 AM
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| Re: CT3Comm Library Question Ed >I am using the CT3Comm library in vXh, but cannot seem to get the > com_dcd() function to work at all. I am able to open the port, > initialize it, send and receive data, but when I create a loop to look > for modem carrier (DCD), it never detects the carrier. I have > confirmed the cabling and can see the DCD activate using a com port > monitor. Has anyone used this function? I am using a standalone > modem on COM1. use xhbcomm. it allow use of DCD Regards Luiz |
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#3
08-10-2008, 10:59 AM
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| Re: CT3Comm Library Question On Aug 10, 9:20*am, "Luiz Lafael" <l...@xharbour.com.br> wrote: > Ed > > >I am using the CT3Comm library in vXh, but cannot seem to get the > > com_dcd() function to work at all. *I am able to open the port, > > initialize it, send and receive data, but when I create a loop to look > > for modem carrier (DCD), it never detects the carrier. *I have > > confirmed the cabling and can see the DCD activate using a com port > > monitor. *Has anyone used this function? *I am using a standalone > > modem on COM1. > > use xhbcomm. it allow use of DCD > > Regards > Luiz Hi Luiz, Thanks for the info. I cannot see where the library doc shows DCD function capability. However, in the documentation for the function GetModemStatus() there is a reference to "rlsd" which I have never seen before. Perhaps this is the DCD status? Regards, Ed |
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#4
08-10-2008, 11:23 AM
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| Re: CT3Comm Library Question On Aug 10, 9:20*am, "Luiz Lafael" <l...@xharbour.com.br> wrote: > Ed > > >I am using the CT3Comm library in vXh, but cannot seem to get the > > com_dcd() function to work at all. *I am able to open the port, > > initialize it, send and receive data, but when I create a loop to look > > for modem carrier (DCD), it never detects the carrier. *I have > > confirmed the cabling and can see the DCD activate using a com port > > monitor. *Has anyone used this function? *I am using a standalone > > modem on COM1. > > use xhbcomm. it allow use of DCD > > Regards > Luiz Hi Luiz, Thanks for the info. I cannot see where the library doc shows DCD function capability. However, in the documentation for the function GetModemStatus() there is a reference to "rlsd" which I have never seen before. Perhaps this is the DCD status? Also, in the InitPort() function, what is the "@x" in your example: nHandle := Init_Port('COM1',9600,8,1,0,4000,@x) ? Regards, Ed |
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#5
08-10-2008, 11:52 AM
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| Re: CT3Comm Library Question On Aug 10, 11:23*am, Ed J <foodwatch2...@yahoo.com> wrote: > On Aug 10, 9:20*am, "Luiz Lafael" <l...@xharbour.com.br> wrote: > > > Ed > > > >I am using the CT3Comm library in vXh, but cannot seem to get the > > > com_dcd() function to work at all. *I am able to open the port, > > > initialize it, send and receive data, but when I create a loop to look > > > for modem carrier (DCD), it never detects the carrier. *I have > > > confirmed the cabling and can see the DCD activate using a com port > > > monitor. *Has anyone used this function? *I am using a standalone > > > modem on COM1. > > > use xhbcomm. it allow use of DCD > > > Regards > > Luiz > > Hi Luiz, > Thanks for the info. *I cannot see where the library doc shows DCD > function capability. *However, in the documentation for the function > GetModemStatus() * there is a reference to "rlsd" which I have never > seen before. *Perhaps this is the DCD status? > > Also, in the InitPort() function, what is the "@x" > in your example: * *nHandle := Init_Port('COM1',9600,8,1,0,4000,@x)? > > Regards, > Ed Luiz, Also, in the GetModemStatus(), what type of memory variable needs to be passed... Logical, Char, or numeric? Can you provide a working sample of a simple port opening and modem status reading? The documentation/syntax is very hard to follow... Thanks, Ed |
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#6
08-10-2008, 02:57 PM
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| Re: CT3Comm Library Question Ed >I am using the CT3Comm library in vXh, but cannot seem to get the > com_dcd() function to work at all. I am able to open the port, > initialize it, send and receive data, but when I create a loop to look > for modem carrier (DCD), it never detects the carrier. I have > confirmed the cabling and can see the DCD activate using a com port > monitor. Has anyone used this function? I am using a standalone > modem on COM1. I looked into the sources and found some mistake, thanks for update. In the meantime use Com_RLSD( nPort ) instead of Com_DCD( nPort ). Please report if you get the desired result. Regards Pritpal Bedi, INDIA-USA |
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#7
08-11-2008, 09:38 AM
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| Re: CT3Comm Library Question Hi GetModemStatus(nHandle,@lCts,@lDSR,@lRing,@lRLSD) all variable passed by are logical type Regards Luiz |
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