XmStringDrawUnderline draws a compound string in an X Window. If the
substring identified by underline can be matched in string,
the substring will be underlined. Once a match has occurred, no further
matches or underlining will be done.
Only the first text component of underline is used for matching.
If a compound string segment uses a
rendition
that
contains
a font set, the graphic context passed to this
routine will have the GC font member left in an undefined
state. The underlying XmbStringDraw function called
by this routine modifies the font ID field of the GC passed
into it and does not attempt to restore the font ID to the
incoming value. If the compound string segment is not drawn using
a font set, the graphic context must contain a valid font
member. Graphic contexts created by XtGetGC are not
accepted by this routine; instead, use XtAllocateGC
to create a graphic context.
d
Specifies the display.
w
Specifies the window.
rendertable
Specifies the render table.
string
Specifies the string.
gc
Specifies the graphics context to use.
x
Specifies a coordinate of the rectangle that will contain the displayed
compound string.
y
Specifies a coordinate of the rectangle that will contain the displayed
compound string.
width
Specifies the width of the rectangle that will contain the
displayed compound string.
alignment
Specifies how the string will be aligned within the specified rectangle.
It is one of XmALIGNMENT_BEGINNING, XmALIGNMENT_CENTER, or
XmALIGNMENT_END.
layout_direction
Controls the direction in which the segments of the compound string will
be laid out. It also determines the meaning of the alignment parameter.
clip
Allows the application to restrict the area into which the compound string
will be drawn.
If it is NULL, clipping will be determined by the GC.