Control height is fixed. Bottom
From Bottom property
changes when Height is changed, or when parent
window's height changes.
1
Control height is relative to the bottom edge of the parent
window. Height property changes when
Bottom From Bottom is changed, or when
parent window's height changes.
10+
Control is positioned relative to a splitter. The value
represents the splitter ID. Height property changes when
Bottom From Bottom is
changed, or when splitter position changes.