gtkDrawInsertionCursor: gtkDrawInsertionCursor
In RGtk2: R Bindings for Gtk 2.8.0 and Above

Draws a text caret on drawable at location. This is not a style function but merely a convenience function for drawing the standard cursor shape.

1 2	gtkDrawInsertionCursor(widget, drawable, area = NULL, location, is.primary, direction, draw.arrow)

`widget`	a `GtkWidget`
`drawable`	a `GdkDrawable`
`area`	rectangle to which the output is clipped, or `NULL` if the output should not be clipped. [ allow-none ]
`location`	location where to draw the cursor (`location->width` is ignored)
`is.primary`	if the cursor should be the primary cursor color.
`direction`	whether the cursor is left-to-right or right-to-left. Should never be `GTK_TEXT_DIR_NONE`
`draw.arrow`	`TRUE` to draw a directional arrow on the cursor. Should be `FALSE` unless the cursor is split.