Commands

Compiling

To compile the example:

• Launch EiffelStudio.
• Click Add project
• Browse to $ISE_EIFFEL\examples\wel\commands\.
• Choose commands.ecf
• Choose the location where the project will be compiled, by default the same directory containing the configuration file.
• Click OK.

Running

After launching the program, you will see a window displayed with a similar appearance to the one illustrated above. Please follow the instructions displayed in the window.

Under the Hood

MAIN_DIALOG inherits WEL_MAIN_DIALOG which provides the feature put_command, used to associate a WEL_COMMAND to a Windows message received by the window. A WEL_COMMAND contains a deferred feature, execute which is executed when the command is fired. SHOW_COMMAND_INFORMATION, SHOW_MOUSE_BUTTON_INFORMATION and SHOW_MOVE_INFORMATION all inherit WEL_COMMAND .

Note: execute has an argument of type ANY which is used to pass any additional information required.

This sample contains the following classes:

• APPLICATION_IDS
• COMMANDS_DEMO
• MAIN_DIALOG
• SHOW_COMMAND_INFORMATION
• SHOW_MOUSE_BUTTON_INFORMATION
• SHOW_MOVE_INFORMATION