XmStringDrawUnderline — A compound string function that underlines
a string drawn in an X Window
#include <Xm/Xm.h>
void XmStringDrawUnderline(
Display * d,
Window w,
XmRenderTable rendertable,
XmString string,
GC gc,
Position x,
Position y,
Dimension width,
unsigned char alignment,
unsigned char layout_direction,
XRectangle * clip,
XmString underline);
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.
- underline
- Specifies the substring to be underlined.