Accepting characters

You can allow certain characters that can be entered in the textbox for letters only or numbers only. This is very useful in entering a particular format, for example such as inputting a phone number.

ui_textbox_set_acceptable(control, acceptable);

Return: True if successful

Where acceptable are macros that can be seen here.

textboxUsername = ui_textbox_create(32, 24, 128, ui_default, "Username");
ui_textbox_set_acceptable(TextboxUsername, ui_number_only);

The above line of code is used to change the textboxUsername textbox only accept input for numbers only.