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Scrolls the control using the handle for the widget set class.
Source position: controls.pp line 2318
public procedure TWinControl.ScrollBy_WS( |
DeltaX: Integer; |
DeltaY: Integer |
); |
Raises an Exception if the handle has not been allocated for the widget set class instance. Raised with the message 'TWinControl.ScrollBy_WS: Handle not allocated'.
|
Check whether a widget has been assigned to this control. |
lazarus-ccr.sourceforge.net |