1 files changed, 8 insertions, 0 deletions
diff --git a/src/gwin/gwin_checkbox.h b/src/gwin/gwin_checkbox.h
index 10401624..48807239 100644
--- a/src/gwin/gwin_checkbox.h
+++ b/src/gwin/gwin_checkbox.h
@@ -45,6 +45,14 @@ typedef struct GEventGWinCheckbox {
 	bool_t			isChecked;		// Is the checkbox currently checked or unchecked?
 } GEventGWinCheckbox;
 
+/**
+ * @brief	The internal checkbox flags
+ * @note	Used only for writing a custom draw routine.
+ * @{
+ */
+#define GCHECKBOX_FLG_CHECKED		(GWIN_FIRST_CONTROL_FLAG<<0)
+/** @} */
+
 /* A Checkbox window */
 typedef struct GCheckboxObject {
 	GWidgetObject			w;