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Updates the horizontal scrollbar to use the specified range, page, and position.
Source position: grids.pas line 1180
protected procedure TCustomGrid.UpdateHorzScrollBar( |
const aVisible: Boolean; |
const aRange: Integer; |
const aPage: Integer; |
const aPos: Integer |
); virtual; |
aVisible |
|
True if the scrollbar is already visible. |
aRange |
|
Maximum position for the scrollbar. |
aPage |
|
Page size for a thumb tab in the scrollbar. |
aPos |
|
Position for the scrollbar. |
UpdateHorzScrollBar calls ScrollBarShow to updated the scrollbar visibility when it differs from the value in aVisible. The ScrollBarRange is called to apply the values in ARange, APage, and APos to the horizontal scrollbar for the control. No actions are performed if the visibility has not been changed and the scrollbar is not visible.
UpdateHorzScrollBar is called from the CalcScrollbarsRange method when the visible area in the grid is scrolled.
lazarus-ccr.sourceforge.net |