EM_FORMATRANGE
The
EM_FORMATRANGE message formats a range of text in a rich edit control for a
specific device.
EM_FORMATRANGE
wParam = (WPARAM) (BOOL) fRender;
lParam = (LPARAM) (FORMATRANGE FAR *) lpFmt;
Parameters
fRender
Value
specifying whether to render the text. If this parameter is nonzero, the text
is rendered. Otherwise, the text is just measured.
lpFmt
Pointer to a FORMATRANGE structure containing
information about the output device, or NULL to free information cached by the
control.
This message
is typically used with the EM_DISPLAYBAND message to format a rich edit
control s contents for an output device such as a printer.
It is very
important to free cached information after the last time you use this message
by specifying NULL in lpFmt. In addition, after using this message for
one device, you must free cached information before using it again for a
different device.
Return Values
Returns the
index of the last character that fits in the region plus one.
See Also