pub trait GuiCustomControlExt<T: HasIDispatch = Self>: HasIDispatch<T> {
// Provided methods
fn char_height(&self) -> Result<i32> { ... }
fn char_left(&self) -> Result<i32> { ... }
fn char_top(&self) -> Result<i32> { ... }
fn char_width(&self) -> Result<i32> { ... }
}