isReset - method of the CanvasCtxExt object
Description:
Detects whether the drawing area contains graphic content from previous drawing.
Syntax:
Boolean isReset()
Return values:
true - The drawing area has been reset (erased) and it is necessary to draw everything again in the
onDraw event.
false - The drawing area has not been erased after last drawing so by calling the pEvent.
GetCtx(1) method in the
onDraw event it is possible to draw into the are with original graphic content and add new content to it.
Example:
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var b = pEvent.CtxExt.isReset();