In picking mode , any drawing primitives that intersect the picking region are reported as hits . If a drawing primitive overlaps or intrudes upon the picking volume, a hit is recorded. The hit is recorded by placing the depth of the name stack into the next vacant slot in the buffer, followed by the entire contents of the name stack. The bottom of the name stack is transferred to the buffer first, followed by the second from the bottom entry of the name stack, and so forth. In other words, the data from bottom to top is mapped from left to right.
Parameters deltax Specifies the new width of the picking region .
Related Information Putting the system in picking mode with the pick subroutine. AIX Graphics Library Overview and Picking and Selecting Overview.