The package comes with 2 components:

• TModuleSwitcher, which allows the sending of commands with parameters. The component only needs to be placed in the sender application. The actions can be automatically linked to a menuitem or a speedbutton. The icon can be extracted automatically from the destination file. Just drop a speedbuton and/or an idle menuitem and set the appropriate properties in the component.
• TCommandReceiver, which is responsible for receiving the commands from TModuleSwitcher, identify the command and extract its parameters values to a TStringList. The component is placed on the mainform of the destination application, and activate by 2 lines of code.
  • in the OnShow event of your main form (for example only, place it where you need it), and call the Run method.
  • Prepare the main form of your application to receive the windows messages, by adding this code:

    interface uses Switchmodules ; type TYourForm = class (TForm) CommandReceiver : TCommandReceiver ; private { Private-Deklarationen } { ADD THIS LINE } procedure WMCopyData(var Msg: TWMCopyData); message WM_COPYDATA; ... end ; implementation { ADD THIS PROCEDURE } procedure TYourForm.WMCopyData(var Msg: TWMCopyData); begin CommandReceiver.ForwardMessage (Msg) ; end ; end.

Two techniques are used for receiving the commands. First is by interpreting the startup paramaters (when the destination application is first launched), of by receiving a windows message (if the application is already running and a second instance shell be avoided.