RAD Studio VCL Reference
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TSpeedButton.Down Property
TSpeedButton Class | TSpeedButton Members | Buttons Namespace | Description | See Also
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Specifies whether the button is selected (down) or unselected (up).

Pascal
property Down: Boolean;
C++
__property Boolean Down;
Description

Read Down to determine whether a speed button is selected. The Down property only applies if the GroupIndex property of the button is nonzero. 

When GroupIndex is greater than 0, set Down to true to select a button. When the user clicks on a button in the unselected (up) state, the button is selected and Down is set to true. When the user clicks on a button in the selected (down) state, if Caption is true, the button becomes unselected and Down is set to false. 

At design time, specify which button in a group is the initially selected button by setting the Down property of the selected button to true.

Note: When GroupIndex is 0, buttons do not remain in the selected state when clicked.
 

 

See Also
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