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Details about the "op" parameter :
Details about the "op" parameter :
Parameter op takes one of the strings “set”, “reset”, “intersect”, or “null”.
Parameter op takes one of the strings “set”, “reset”, “intersect”, or “null”.
* '''reset''' sets the clipping rectangle to include the entire window. The remaining parameters is ignored and can be left out.
* '''reset''' sets the clipping rectangle to include the entire window. The remaining parameters is ignored and can be left out.
* '''null''' sets the clipping rectangle to empty. All subsequent graphics commands will be ignored.
* '''null''' sets the clipping rectangle to empty. All subsequent graphics commands will be ignored.
Typically the “set” operation is called before drawing, say, a text string. It is important to call the “reset” operation after drawing the last clipped graphic so that you don’t leave a lingering clipping rectangle as a side effect.
Typically the “set” operation is called before drawing, say, a text string. It is important to call the “reset” operation after drawing the last clipped graphic so that you don’t leave a lingering clipping rectangle as a side effect.
== Example ==
== Example ==
