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javascript Programming Glossary: curtop

Tracking mouse position in canvas when no surrounding element exists [closed]

http://stackoverflow.com/questions/5085689/tracking-mouse-position-in-canvas-when-no-surrounding-element-exists

of the canvas element function findPos obj var curleft 0 curtop 0 if obj.offsetParent do curleft obj.offsetLeft curtop obj.offsetTop.. 0 curtop 0 if obj.offsetParent do curleft obj.offsetLeft curtop obj.offsetTop while obj obj.offsetParent return x curleft y.. while obj obj.offsetParent return x curleft y curtop return undefined And calculate the current position of the cursor..

Check if element is visible on screen [duplicate]

http://stackoverflow.com/questions/5353934/check-if-element-is-visible-on-screen

The code I'm using looks like this function posY obj var curtop 0 if obj.offsetParent while 1 curtop obj.offsetTop if obj.offsetParent.. function posY obj var curtop 0 if obj.offsetParent while 1 curtop obj.offsetTop if obj.offsetParent break obj obj.offsetParent.. break obj obj.offsetParent else if obj.y curtop obj.y return curtop Thank you in advance javascript position..

Get pixel color from canvas, on mouseover

http://stackoverflow.com/questions/6735470/get-pixel-color-from-canvas-on-mouseover

utility functions function findPos obj var curleft 0 curtop 0 if obj.offsetParent do curleft obj.offsetLeft curtop obj.offsetTop.. 0 curtop 0 if obj.offsetParent do curleft obj.offsetLeft curtop obj.offsetTop while obj obj.offsetParent return x curleft y.. while obj obj.offsetParent return x curleft y curtop return undefined function rgbToHex r g b if r 255 g 255 b 255..