ShowPen

ShowPen Balance a previous HidePen; make pen visible

#include <Quickdraw.h> Quickdraw

void ShowPen( );

This function increments the "pen level". If the pen level's value is set to 0,

pen drawing operations are visible.

Notes: This function manipulates the pnVis field of the current GrafPort. Using

HidePen decrements the field and ShowPen increments it. When the

pnVis field is not equal 0, the pen is hidden and drawing functions (LineTo,

FrameRect, etc.) do not affect the bitMap. The pnVis field is set to 0

( visible) when the GrafPort is initialized.

The decrement/increment system makes it easy to nest drawing functions.

Always balance a HidePen call with ShowPen, and vice versa.

You can get the current "pen level" by reading the pnVis field directly from

the GrafPort structure. Note that it is not a Boolean field; the pen is visible

only when pnVis == 0.

The CloseRgn, ClosePicture, and ClosePoly functions automatically

call ShowPen to balance the previous automatic call to HidePen.