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
Parameters
This message has no parameters.
Return Values
Returns the width of the left margin in the low-order word, and the width of the right margin in the high-order word.
See Also