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...Associate an application with a file extension?
Autor: Simon Grossenbacher
Homepage: http://www.swissdelphicenter.ch
[ Print tip ]  

Tip Rating (4):  
     


uses
  
registry, shlobj;

procedure TForm1.RegisterFileType(prefix: string; exepfad: string);
var
  
reg: TRegistry;
begin
  
reg := TRegistry.Create;
  try
    
reg.RootKey := HKEY_CLASSES_ROOT;
    //create a new key  --> .pci
    
reg.OpenKey('.' + prefix, True);
    try
      
//create a new value for this key --> pcifile
      
reg.Writestring('', prefix + 'file');
    finally
      
reg.CloseKey;
    end;
    //create a new key --> pcifile
    
reg.CreateKey(prefix + 'file');
    //create a new key pcifile\DefaultIcon
    
reg.OpenKey(prefix + 'file\DefaultIcon', True);
    //and create a value where the icon is stored --> c:\project1.exe,0
    
try
      
reg.Writestring('', exepfad + ',0');
    finally
      
reg.CloseKey;
    end;
    reg.OpenKey(prefix + 'file\shell\open\command', True);
    //create value where exefile is stored --> c:\project1.exe "%1"
    
try
      
reg.Writestring('', exepfad + ' "%1"');
    finally
      
reg.CloseKey;
    end;
  finally
    
reg.Free;
  end;
  SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, nilnil);
end;


procedure TForm1.Button1Click(Sender: TObject);
begin
  
RegisterFileType('pci', 'c:\project1.exe');
end;


 

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