Method HasSelection

KBotExt/imgui/imgui.h:2191–2191

	void                SelectAll() { SelectionStart = 0; SelectionEnd = BufTextLen; }
	void                ClearSelection() { SelectionStart = SelectionEnd = BufTextLen; }
	bool                HasSelection() const { return SelectionStart != SelectionEnd; }
};

// Resizing callback data to apply custom constraint. As enabled by SetNextWindowSizeConstraints(). Callback is called during the next Begin().