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Windowless plug-in will not call ____________

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in HTML by (56.4k points)
Windowless plug-in will not call ____________

(a) NPN_InvalidateRegion

(b) NPN_ForceRedraw

(c) NPN_InvalidateRect

(d) NPP_GetValue

This question was addressed to me in an internship interview.

My doubt stems from HTML Plugins topic in chapter Advance HTML of HTML

1 Answer

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Best answer
The correct option is (d) NPP_GetValue

Best explanation: Windowless plugin can call Netscape methods like NPN_InvalidateRegion, NPN_ForceRedraw, NPN_InvalidateRect. NPN_InvalidateRegion is used for invalidate an area in windowless plug-in before refreshing or repeating.

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