The slider control window procedure responds to this message by sending it to its owner if it has not processed the key stroke. This is the most common means by which the input focus is switched around the various controls in a dialog box.

The keystrokes processed by a linear slider control are:

Down Arrow

Moves the slider arm down one increment. When the slider arm reaches the bottom of the slider shaft or when a horizontal slider is being used, the Down Arrow key has no effect.
Up Arrow
Moves the slider arm up one increment. When the slider arm reaches the top of the slider shaft or when a horizontal slider is being used, the Up Arrow key has no effect.
Left Arrow
Moves the slider arm left one increment. When the slider arm reaches the leftmost edge or when a vertical slider is being used, the Left Arrow key has no effect.
Right Arrow
Moves the slider arm right one increment. When the slider arm reaches the rightmost edge or when a vertical slider is being used, the Right Arrow key has no effect.
Shift+Down Arrow
Moves the slider arm to the next detent below the current position. If there are no more detents or if a horizontal slider is being used, the Shift+Down Arrow key combination has no effect.
Shift+Up Arrow
Moves the slider arm to the next detent above the current position. If there are no more detents or if a horizontal slider is being used, the Shift+Up Arrow key combination has no effect.
Shift+Left Arrow
Moves the slider arm to the next detent left of the current position. If there are no more detents or if a vertical slider is being used, the Shift+Left Arrow key combination has no effect.
Shift+Right Arrow
Moves the slider arm to the next detent right of the current position. If there are no more detents or if a vertical slider is being used, the Shift+Right Arrow key combination has no effect.
Home, Ctrl+Home
Moves the slider arm to the home position of the slider. Pressing the Home key or the Ctrl+Home key combination when the slider arm is at the home position has no effect. The default home position for a slider is the leftmost edge for horizontal sliders and the bottom edge for vertical sliders.
End, Ctrl+End
Moves the slider arm to the end position of the slider. Pressing the End key or the Ctrl+End key combination when the slider arm is at the end position has no effect. The default end position for a slider is the rightmost edge for horizontal sliders and the top edge for vertical sliders.

A circular slider control only processes left and right arrow keystrokes. These keys move the slider arm one increment to the left or right.

---

[Back] [Next]