| Run Time Interaction > Navigation and Scrolling > IntelliMouse support |
True DBGrid responds to Microsoft IntelliMouse activity as follows:
If the user turns the wheel, the grid scrolls vertically by one row for each click of the wheel.
If the user holds down the Shift key while turning the wheel, the grid scrolls vertically by one page for each click of the wheel.
If a horizontal scroll bar is present, and the user holds down the Ctrl key while turning the wheel, the grid scrolls horizontally by one column for each click of the wheel. If there is no vertical scroll bar, the user need not hold down the Ctrl key.
If the user holds down the Shift key while performing a horizontal scrolling operation, the grid scrolls horizontally by one page for each click of the wheel.
In summary:
Vertical scrolling takes precedence over horizontal scrolling, unless overridden with the Ctrl key.
The default scrolling increment is one row (or column), unless overridden with the Shift key, in which case the grid scrolls by one page.