Gave all relevant controls matching SetText()/Text() pairs. Also added a TODO for Checkbox related to checked state.

button.go

@@ -37,6 +37,17 @@ func (b *Button) SetText(text string) (err error) {
 	return nil
 }
 
+// Text returns the button's text.
+func (b *Button) Text() string {
+	b.lock.Lock()
+	defer b.lock.Unlock()
+
+	if b.created {
+		return b.sysData.text()
+	}
+	return b.initText
+}
+
 func (b *Button) make(window *sysData) error {
 	b.lock.Lock()
 	defer b.lock.Unlock()

checkbox.go

@@ -37,11 +37,23 @@ func (c *Checkbox) SetText(text string) (err error) {
 	return nil
 }
 
+// Text returns the checkbox's text.
+func (c *Checkbox) Text() string {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	if c.created {
+		return c.sysData.text()
+	}
+	return c.initText
+}
+
 // Checked() returns whether or not the checkbox has been checked.
 func (c *Checkbox) Checked() bool {
 	c.lock.Lock()
 	defer c.lock.Unlock()
 
+	// TODO if not created
 	return c.sysData.isChecked()
 }
 

label.go

@@ -22,7 +22,28 @@ func NewLabel(text string) *Label {
 	}
 }
 
-// TODO SetText()/Text()?
+// SetText sets the Label's text.
+func (l *Label) SetText(text string) (err error) {
+	l.lock.Lock()
+	defer l.lock.Unlock()
+
+	if l.created {
+		return l.sysData.setText(text)
+	}
+	l.initText = text
+	return nil
+}
+
+// Text returns the Label's text.
+func (l *Label) Text() string {
+	l.lock.Lock()
+	defer l.lock.Unlock()
+
+	if l.created {
+		return l.sysData.text()
+	}
+	return l.initText
+}
 
 func (l *Label) make(window *sysData) error {
 	l.lock.Lock()

lineedit.go

@@ -24,7 +24,17 @@ func NewLineEdit(text string) *LineEdit {
 	}
 }
 
-// TODO SetText
+// SetText sets the LineEdit's text.
+func (l *LineEdit) SetText(text string) (err error) {
+	l.lock.Lock()
+	defer l.lock.Unlock()
+
+	if l.created {
+		return l.sysData.setText(text)
+	}
+	l.initText = text
+	return nil
+}
 
 // Text returns the LineEdit's text.
 func (l *LineEdit) Text() string {