ui.createButton
Creates a custom button as a child of the specified control.
parentHandle integer
component name integer
x integer
y integer
w integer
h integer
caption string
controlID integer
local parentHandle = ui.getHandle(HANDLE_CURRENT_WINDOW)
ui.createButton(parentHandle, "custom__button_1", 16, 16, 160, 32, "Press Me")
Use ui.getHandle() to get a valid parent handle first.
Component name must not contain spaces or certain characters and be unique within the direct parent's scope.
Good: "my_button_1" or "MyButton1"
Bad: "My button 1"
Return value is controlID or -1 if failed to create.