EM_SCROLL (Compact 2013)
3/28/2014
This message scrolls the text vertically in a multiline edit control. This message is equivalent to sending a WM_VSCROLL message to the edit control.
Syntax
EM_SCROLL
wParam = (WPARAM)(INT) nScroll;
lParam = 0;
Parameters
nScroll
Specifies the action the scroll bar is to take. The following table shows the possible 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.
- lParam
Not used; set to 0.
Return Value
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.
Requirements
Header |
windows.h |