Common Controls Sample

Compiling

To compile the example:

• Launch EiffelStudio.
• Select Use existing Ace (control file) and click OK.
• Browse to Eiffel52\examples\wel\comctrls\.
• Choose Ace.ace
• Choose the directory where the project will be compiled, by default the same directory containing the Ace file. If you select another directory than the default one, please copy images (*.bmp), icons (*.ico) and resource files (*.rc) from the default directory (the one containing the Ace file) to the new one.
• Click OK.

Running

After launching the program, a window will be displayed as illustrated above. Selecting "Progress bar demonstration" from the "File" menu will update the progress bar to a full state. Leaving the mouse stationary above the track bar, progress bar or tollbar buttons will cause a tooltip control to be displayed.

Under the Hood

There is one WEL_TOOLTIP used for all the controls, but each control adds a new WEL_TOOL_INFO to provide different output for each control. The feature `on_notify' has been redefined to handle the Ttn_needtext notification which is posted by a control, and received by the controls parent, when a control needs to display a tooltip. The feature `on_menu_select' has been redefined to output the text of the selected menu item in the WEL_STATUS_WINDOW located at the bottom of MAIN_WINDOW.

This sample contains the following classes:

• APPLICATION_IDS
• MAIN_WINDOW
• COMCTRLS_DEMO