Re: [Dev-C++] get serial port info

Name                      Type           Data
(Default)                  REG_SZ     (value not set)
\Device\Serial0        REG_SZ     COM1
\Device\U2SPORT1 REG_SZ     COM7

if i used on my computer, i can see:
COM1
COM1

when i used my .exe on my colleagues computer.
he has 2 serial port and 1 usb->serial.
but we can only see "COM4" for 3 times.

so at least, the code can recognize how many COM on computer, whatever real
com port or usb-com.
but cannot read right com port number.


On Dec 19, 2007 1:57 PM, Rafael Menezes <so...@gm...> wrote:

> Hi Jessica.
>
> Can you, for start, list what is on "HARDWARE\\DEVICEMAP\\SERIALCOMM" in
> your computer?
>
> Regards
> Rafael
>
>
> On 19/12/2007, Jessica Chen <jes...@gm...> wrote:
> >
> > Hi, thanks for ur email, Rafael.
> >
> > I researched myself.
> > I wrote a code.  I will list it as follows.
> > The problem seems it can recognize the real serial com port (Com 1 in my
> > computer, registry).
> > But on my computer, I have a  USB->serial com port (Com 7 in my
> > computer, registry).
> > The code cannot recognize the USB->serial com port.
> > Is there any experienced persons can give any idea about that?
> >
> > #include <windows.h>
> > #include <stdio.h>
> > #include <tchar.h>
> >
> > int main(void)
> > {
> >     char *strSerialList[256];
> >     HKEY hKey;
> >
> >     if( RegOpenKeyEx(HKEY_LOCAL_MACHINE,
> >                      TEXT("HARDWARE\\DEVICEMAP\\SERIALCOMM"),
> >                      0,
> >                      KEY_READ,
> >                      &hKey) != ERROR_SUCCESS)
> >     {
> >         return -1;
> >     }
> >
> >      int i=0;
> >      CHAR Name[25];
> >      UCHAR szPortName[25];
> >      LONG Status;
> >      DWORD dwIndex = 0;
> >      DWORD dwName;
> >      DWORD dwSizeofPortName;
> >      DWORD Type;
> >      dwName = sizeof(Name);
> >      dwSizeofPortName = sizeof(szPortName);
> >
> >      do
> >      {
> >        Status = RegEnumValue(hKey, dwIndex++, Name, &dwName, NULL,
> > &Type,
> >                           szPortName, &dwSizeofPortName);
> >        if((Status == ERROR_SUCCESS) || (Status == ERROR_MORE_DATA))
> >        {
> >           strSerialList[i] = (char*)(szPortName);
> >           i++;
> >        }
> >     } while((Status == ERROR_SUCCESS) || (Status == ERROR_MORE_DATA));
> >     RegCloseKey(hKey);
> >
> >     for(int j=0;j<i;j++)
> >     {
> >       printf("%s\n",strSerialList[j]);
> >     }
> >
> >     return 0;
> > }
> >
> >
> > On Dec 19, 2007 12:34 PM, Rafael Menezes <so...@gm...> wrote:
> >
> > > You can send mails. Can you search on google?
> > >
> > > http://www.google.com.br/search?hl=pt-BR&q=c%2B%2B+com+port&meta =
> > >
> > > http://www.google.com.br/search?num=30&hl=pt-BR&q=c%2B%2B+serial+port&meta
> > > =
> > >
> > >
> > >  On 19/12/2007, Jessica Chen <jes...@gm... > wrote:
> > >
> > > > is there anyone have the experience for writing code of getting the
> > > > serial port info from windows?
> > > > can u give me an sample code?
> > > >
> > > >
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> > > >
> > >
> > >
> > > --
> > > Regards
> > > Rafael Menezes
> >
> >
> >
>
>
> --
> Regards
> Rafael Menezes