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4 - Button Handling
On pressing a button, the form's MsgHandler() is sent a MSG_BUTTON_SELECT message. The sole exception is CRepeatButton, which sends a MSG_BUTTON_REPEAT message repeatedly while pressed. All buttons send the current button state as a Boolean value in the data component of the message, with true representing a down button, and false for up. This is useful to determine if a button is being pressed or released, such as possible with a pushbutton.Now you have your buttons set up, what to do? Although each provides a variety of functions, the most generally useful are the following:
- GetDownStatus() - Set button down (or check a checkbox or radio button).
- SetDownStatus() - Get button down status.
- SetLabel() - Set button caption.
- GetLabel() - Get button caption.
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