whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1541)

Database (90)
Files (137)
Forms (107)
Graphic (114)
IDE (21)
Indy (5)
Internet / LAN (130)
IntraWeb (0)
Math (76)
Misc (126)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (266)
VCL (242)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

63 Visitors Online


 
...get names of available comm ports?
Autor: Simon Grossenbacher
Homepage: http://www.swissdelphicenter.ch
[ Print tip ]  

Tip Rating (67):  
     


{
  Show the names of available comm ports (com1, com2, ...)
  Used registry key: hkey_local_machine\hardware\devicemap\serialcomm
}

uses
  
Registry;

procedure TForm1.Button1Click(Sender: TObject);
var
  
reg: TRegistry;
  st: Tstrings;
  i: Integer;
begin
  
reg := TRegistry.Create;
  try
    
reg.RootKey := HKEY_LOCAL_MACHINE;
    reg.OpenKey('hardware\devicemap\serialcomm', False);
    st := TstringList.Create;
    try
      
reg.GetValueNames(st);
      for i := 0 to st.Count - 1 do 
        
Memo1.Lines.Add(reg.Readstring(st.strings[i]));
    finally
      
st.Free;
    end;
    reg.CloseKey;
  finally
    
reg.Free;
  end;
end;


 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners