xtd - Reference Guide  0.1.0
Modern c++17 framework to create console, gui and unit test applications on Windows, macOS and Linux.

§ dock_style

Specifies the position and manner in which a control is docked.

Remarks
When a control is docked to an edge of its container, it is always positioned flush against that edge when the container is resized. If more than one control is docked to an edge, the controls appear side by side according to their z-order; controls higher in the z-order are positioned farther from the container's edge.
If left, right, top, or bottom is selected, the specified and opposite edges of the control are resized to the size of the containing control's corresponding edges. If fill is selected, all four sides of the control are resized to match the containing control's edges.
Enumerator
none 

The control is not docked.

top 

The control's top edge is docked to the top of its containing control.

bottom 

The control's bottom edge is docked to the bottom of its containing control.

left 

The control's left edge is docked to the left edge of its containing control.

right 

The control's right edge is docked to the right edge of its containing control.

fill 

All the control's edges are docked to the all edges of its containing control and sized appropriately.