EM_SETMARGINS
An
application sends the EM_SETMARGINS message to set the widths of the left and
right margins for an edit control. The message redraws the control to reflect
the new margins.
EM_SETMARGINS
wParam = (WPARAM) fwMargin; // left and/or right
margins
lParam = (LPARAM) MAKELONG(wLeft, wRight); // width of left or right margins, in
pixels
Parameters
fwMargin
Value of wParam.
Specifies the margins to set. This parameter can be a combination of the
following values:
|
Value |
Meaning |
|
EC_LEFTMARGIN |
Sets the
left margin. |
|
EC_RIGHTMARGIN |
Sets the
right margin. |
|
EC_USEFONTINFO |
Uses
information about the current font of the edit control to set the margins.
For a single-line edit control, margins are set to the average width of
characters in the font. For a multiline edit control, the right margin is set
to the A width of the font (the distance added to the current position
before drawing a character), and the left margin is set to the C width (the
distance added to the current position to provide white space to the right of
a character). |
If
EC_USEFONTINFO is specified, the lParam parameter is ignored.
wLeft
Value of the
low-order word of lParam. Specifies the width of the left margin, in
pixels. This value is ignored if fwMargin does not include EC_LEFTMARGIN
or if EC_USEFONTINFO is specified.
wRight
Value of the
high-order word of lParam. Specifies the width of the right margin, in
pixels. This value is ignored if fwMargin does not include
EC_RIGHTMARGIN or if EC_USEFONTINFO is specified.
Return Values
This message
does not return a value.
See Also