string
The "tool tip" text to be displayed in a little yellow box when the mouse cursor rests on the panel during interaction. It is typically used to give a hint of the panel function to the operator.
Tool tip text may be changed after panel creation.
Tool tips are not available for sub-windows, separators, or sashes.
For some panel types (e.g. radio box) multiple tool tips may be set by '|' concatenation. For example, in a radio box with 3 options, separate tool tips for each option could be defined like this:
mypanel.tooltip = 'Option 1|Option 2|Option 3'