EN_VSCROLL notification code

Sent when the user clicks an edit control's vertical scroll bar or when the user scrolls the mouse wheel over the edit control. The parent window of the edit control receives this notification code through a WM_COMMAND message. The parent window is notified before the screen is updated.

EN_VSCROLL

    WPARAM wParam;
    LPARAM lParam;

Parameters

wParam

The LOWORD contains the identifier of the edit control. The HIWORD specifies the notification code.

lParam

A handle to the edit control.

Remarks

This message is sent for the following mouse events on the vertical scroll bar: clicking either arrow button or clicking between the arrow button and the thumb. However, the message is not sent when clicking the scroll bar mouse itself. The message is also sent when a keyboard event causes a change in the view area of the edit control, for example, pressing HOME, END, PAGE UP, PAGE DOWN, UP ARROW, or DOWN ARROW.

The mouse wheel is a mouse that has a center wheel that scrolls. For more information, see "The Mouse Wheel" in About Mouse Input.

Rich Edit: Supported in Microsoft Rich Edit 1.0 and later. To receive EN_VSCROLL notification codes, specify ENM_SCROLL in the mask sent with the EM_SETEVENTMASK message. For information about the compatibility of rich edit versions with the various system versions, see About Rich Edit Controls.

Requirements

See also

Reference

EN_HSCROLL

Conceptual

Using Edit Controls

Other Resources

WM_COMMAND