Tuesday, September 14, 2010

Event handling

This article outlines the application "HandleEvent" function handling the event of certain guiding principles. The most important is the proper use of the key events are usually due (EVT_KEY) generated by the user interface controls EVT_COMMAND event.

Such as the "BREW 鈩?API Reference," described the proper use of menus, text and other controls in the application event handler within the cascading events of these controls. According to their status, they will then handle the event depending on whether returns TRUE / FALSE. In some cases, the event processing, including the incident, sent to the application's event handler. This is done by EVT_COMMAND. The incident shows that have already passed control to perform operations and to provide information about the operation. For example, instructions from the IMenuCtl generate EVT_COMMAND have chosen a project.


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