# ATTR_CALLBACK_NAME_LENGTH (Control)

Type: | Control attribute
Description: | The number of bytes (excluding the ASCII NUL) in the name of the control callback function.
Control Types: | ActiveX controls, binary switches, canvases, color numerics, command buttons, decorations, digital graphs, graphs, LEDs, list boxes, numerics, picture buttons, picture rings, pictures, radio buttons, rings, numeric slides, ring slides, splitters, strings, strip charts, tab controls, tables, text boxes, text buttons, text messages, timers, toggle buttons, trees.
Restrictions: | Not settable.
Data Type: | integer