The increment and decrement buttons usually change the ones digit in a digital control. If you click an increment or decrement button and hold the mouse button down, the display increases or decreases until you release the mouse button. If you click the increment or decrement button, hold down the mouse button, and hold down the <Shift> key, the size of the increment increases by successively higher orders of magnitude. The value first increments by ones, then by tens, by hundreds, and so on. As the range limit approaches, the increment decreases by orders of magnitude, slowing down as the value reaches the limit.
To increase a digital display by a digit other than the ones digit, use the Operating tool to place the insertion point to the right of the target digit. When you are finished, the ones digit again becomes the increment digit.
Complete the following steps to practice using the increment and decrement buttons.
Select the digital control from the Controls»Numeric subpalette. Place the digital control on the front panel.
Using the Operating tool, click the increment and decrement buttons. The value increases and decreases by one.
Click and hold down the increment button to increase the value repeatedly.
Using the Positioning tool, resize the digital control. Notice that the control can be increased in length only horizontally.
Using the Operating tool again, hold down the <Shift> key while holding down the increment button. Notice that the value begins to increase by one, but then by tens, hundreds, and so on.
Change the value of the digital control to 10.00 by double-clicking inside the display window, typing 10, and pressing <Enter>.
Click the increment button two times. The value increases by one with each click and the value is now 12.00.
To increment by tens, use the Operating tool to place an insertion point between the digits 1 and 2. Click the increment button to increase the value to 22.00. By placing the insertion point to the right of the tens digit, the increment value is changed to tens.
Click the increment button again. The value increments to 23.00. Notice that the ones digit again becomes the increment digit.