CHECKBOX

A check box may be checked or unchecked by the user, and any number of boxes may be checked at one time.

CHECKBOX
CHECKBOX with new skin.
Receives focus	Yes
Skinnable	Yes
OwnerDraw	No
Uses Memory Devices	No
Attached widgets	None

Notification codes

The following events are sent from a CHECKBOX widget to its parent window as part of a WM_NOTIFY_PARENT message:

Message	Description
WM_NOTIFICATION_CLICKED	CHECKBOX has been clicked.
WM_NOTIFICATION_RELEASED	CHECKBOX has been released.
WM_NOTIFICATION_MOVED_OUT	CHECKBOX has been clicked and pointer has been moved out of the box without releasing.
WM_NOTIFICATION_VALUE_CHANGED	Status of CHECKBOX has been changed.

Keyboard reaction

The CHECKBOX widget reacts to the following keys if it has the input focus:

Message	Description
GUI_KEY_SPACE	Toggles the checked state of the CHECKBOX widget.

Samples

Below are links to samples that demonstrate how to use CHECKBOX widgets in emWin.

• CHECKBOX_Custom.c
• CHECKBOX_Usage.c