Add documentation for high-level textscreen functions.

Subversion-branch: /trunk/chocolate-doom
Subversion-revision: 1449

1 files changed, 35 insertions, 0 deletions

diff --git a/textscreen/txt_checkbox.h b/textscreen/txt_checkbox.h
index 1b34c3a0..b786ad61 100644
--- a/textscreen/txt_checkbox.h
+++ b/textscreen/txt_checkbox.h
@@ -22,6 +22,19 @@
 #ifndef TXT_CHECKBOX_H
 #define TXT_CHECKBOX_H
 
+/**
+ * Checkbox widget.
+ *
+ * A checkbox is used to control boolean values that may be either on
+ * or off.  The widget has a label that is displayed to the right of
+ * the checkbox indicator.  The widget tracks an integer variable;
+ * if the variable is non-zero, the checkbox is checked, while if it
+ * is zero, the checkbox is unchecked.  It is also possible to
+ * create "inverted" checkboxes where this logic is reversed.
+ *
+ * When a checkbox is changed, it emits the "changed" signal.
+ */
+
 typedef struct txt_checkbox_s txt_checkbox_t;
 
 #include "txt_widget.h"
@@ -34,7 +47,29 @@ struct txt_checkbox_s
     int inverted;
 };
 
+/**
+ * Create a new checkbox.
+ *
+ * @param label         The label for the new checkbox.
+ * @param variable      Pointer to the variable containing this checkbox's
+ *                      value.
+ * @return              Pointer to the new checkbox.
+ */
+
 txt_checkbox_t *TXT_NewCheckBox(char *label, int *variable);
+
+/**
+ * Create a new inverted checkbox.
+ *
+ * An inverted checkbox displays the opposite of a normal checkbox;
+ * where it would be checked, it appears unchecked, and vice-versa.
+ *
+ * @param label         The label for the new checkbox.
+ * @param variable      Pointer to the variable containing this checkbox's
+ *                      value.
+ * @return              Pointer to the new checkbox.
+ */
+
 txt_checkbox_t *TXT_NewInvertedCheckBox(char *label, int *variable);
 
 #endif /* #ifndef TXT_CHECKBOX_H */