EM_SCROLL

This message is sent by an application to scroll the text vertically in a multiline edit control. This message is equivalent to sending a WM_VSCROLL message to the edit control.

At a Glance

Header file: Winuser.h
Windows CE versions: 1.0 and later

Syntax

EM_SCROLL wParam = (WPARAM)(INT) nScroll; lParam = 0;

Parameters

nScroll

Specifies the action the scroll bar is to take. It is one of the following values:

Value Description
SB_LINEDOWN Scrolls down one line.
SB_LINEUP Scrolls up one line.
SB_PAGEDOWN Scrolls down one page.
SB_PAGEUP Scrolls up one page.

Return Values

If the message is successful, the high-order word of the return value is TRUE, and the low-order word is the number of lines that the command scrolls. The number returned may not be the same as the actual number of lines scrolled if the scrolling moves to the beginning or the end of the text. If the nScroll parameter specifies an invalid value, the return value is FALSE.

Remarks

An application should use the EM_LINESCROLL message to scroll to a specific line or character position.

An application should use the EM_SCROLLCARET message to scroll the caret into view.

See Also

EM_LINESCROLL, EM_SCROLLCARET, WM_VSCROLL