RAD Studio VCL Reference
TButtonGroup Members Protected Events
Protected Events
Occurs when an attempt is made to resize the control. 
Adjust resize constraints. 
Occurs when the user double-clicks the left mouse button when the mouse pointer is over the control. 
Returns the control's docking information. 
Occurs immediately after the control is resized. 
Occurs when the application tries to undock a control that is docked to the windowed control. 
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