An application sends the EM_GETMARGINS message to retrieve the widths of the left and right margins for an edit control.
EM_GETMARGINS
wParam = 0; // not used, must be zero
lParam = 0; // not used, must be zero
This message has no parameters.
Returns the width of the left margin in the low-order word, and the width of the right margin in the high-order word.
Windows NT: Requires version 4.0 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in winuser.h.
Edit Controls Overview, Edit Control Messages, EM_SETMARGINS