To compile the example:
- Launch EiffelStudio.
- Click Add project
- Browse to $ISE_EIFFEL\examples\wel\bmpview\.
- Choose bmpview.ecf
- Choose the location where the project will be compiled, by default the same directory containing the configuration file.
- Click OK.
After launching the program, a window will be displayed as illustrated above, although no child windows will be present. Selecting "Open" from the "File" menu will allow you to browse for a .BMP file to view. Multiple files may be opened and each opens in a new child window. The options on the "Window" menu provide features for positioning the child windows. Selecting "Close" will close the currently selected child window, while selecting "Exit" or closing the window manually will exit the program.
Under the Hood
MAIN_WINDOW inherits WEL_MDI_FRAME_WINDOW and redefines
on_menu_command to handle the menu selections.
CHILD_WINDOW inherits WEL_MDI_CHILD_WINDOW and implements make to load a named bitmap, while
on_paint has been redefined to re-draw the bitmap. A WEL_OPEN_FILE_DIALOG is used to select files for viewing. This sample contains the following classes: