public interface CanvasElement extends Element
HTMLCanvasElement interface, which provides properties and methods for manipulating the layout and presentation of canvas elements. The HTMLCanvasElement interface inherits the properties and methods of the element
object interface.ALLOW_KEYBOARD_INPUTATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE| Modifier and Type | Method and Description |
|---|---|
CanvasRenderingContext |
getContext(String contextId)
Returns a drawing context on the canvas, or null if the context ID is not supported.
|
int |
getHeight()
Reflects the
height
HTML attribute, specifying the height of the coordinate space in CSS pixels. |
int |
getWidth()
Reflects the
width
HTML attribute, specifying the width of the coordinate space in CSS pixels. |
void |
setHeight(int arg) |
void |
setWidth(int arg) |
String |
toDataURL(String type)
Returns a
data: URL containing a representation of the image in the format specified by type (defaults to PNG). |
blur, click, focus, getAccessKey, getAttribute, getAttributeNode, getAttributeNodeNS, getAttributeNS, getBoundingClientRect, getChildElementCount, getChildren, getClassList, getClassName, getClientHeight, getClientLeft, getClientRects, getClientTop, getClientWidth, getContentEditable, getDataset, getDir, getElementsByClassName, getElementsByTagName, getElementsByTagNameNS, getFirstElementChild, getId, getInnerHTML, getInnerText, getLang, getLastElementChild, getNextElementSibling, getOffsetHeight, getOffsetLeft, getOffsetParent, getOffsetTop, getOffsetWidth, getOnabort, getOnbeforecopy, getOnbeforecut, getOnbeforepaste, getOnblur, getOnchange, getOnclick, getOncontextmenu, getOncopy, getOncut, getOndblclick, getOndrag, getOndragend, getOndragenter, getOndragleave, getOndragover, getOndragstart, getOndrop, getOnerror, getOnfocus, getOninput, getOninvalid, getOnkeydown, getOnkeypress, getOnkeyup, getOnload, getOnmousedown, getOnmousemove, getOnmouseout, getOnmouseover, getOnmouseup, getOnmousewheel, getOnpaste, getOnreset, getOnscroll, getOnsearch, getOnselect, getOnselectstart, getOnsubmit, getOntouchcancel, getOntouchend, getOntouchmove, getOntouchstart, getOnwebkitfullscreenchange, getOnwebkitfullscreenerror, getOuterHTML, getOuterText, getPreviousElementSibling, getScrollHeight, getScrollLeft, getScrollTop, getScrollWidth, getStyle, getTabIndex, getTagName, getTitle, getWebkitdropzone, getWebkitRegionOverflow, hasAttribute, hasAttributeNS, insertAdjacentElement, insertAdjacentHTML, insertAdjacentText, isContentEditable, isDraggable, isHidden, isSpellcheck, isTranslate, querySelector, querySelectorAll, removeAttribute, removeAttributeNode, removeAttributeNS, scrollByLines, scrollByPages, scrollIntoView, scrollIntoView, scrollIntoViewIfNeeded, scrollIntoViewIfNeeded, setAccessKey, setAttribute, setAttributeNode, setAttributeNodeNS, setAttributeNS, setClassName, setContentEditable, setDir, setDraggable, setHidden, setId, setInnerHTML, setInnerText, setLang, setOnabort, setOnbeforecopy, setOnbeforecut, setOnbeforepaste, setOnblur, setOnchange, setOnclick, setOncontextmenu, setOncopy, setOncut, setOndblclick, setOndrag, setOndragend, setOndragenter, setOndragleave, setOndragover, setOndragstart, setOndrop, setOnerror, setOnfocus, setOninput, setOninvalid, setOnkeydown, setOnkeypress, setOnkeyup, setOnload, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setOnmousewheel, setOnpaste, setOnreset, setOnscroll, setOnsearch, setOnselect, setOnselectstart, setOnsubmit, setOntouchcancel, setOntouchend, setOntouchmove, setOntouchstart, setOnwebkitfullscreenchange, setOnwebkitfullscreenerror, setOuterHTML, setOuterText, setScrollLeft, setScrollTop, setSpellcheck, setTabIndex, setTitle, setTranslate, setWebkitdropzone, webkitMatchesSelector, webkitRequestFullscreen, webkitRequestFullScreenaddEventListener, addEventListener, appendChild, cloneNode, compareDocumentPosition, contains, dispatchEvent, getAttributes, getBaseURI, getChildNodes, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentElement, getParentNode, getPrefix, getPreviousSibling, getTextContent, hasAttributes, hasChildNodes, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, removeEventListener, removeEventListener, replaceChild, setNodeValue, setPrefix, setTextContentint getHeight()
height
HTML attribute, specifying the height of the coordinate space in CSS pixels.void setHeight(int arg)
int getWidth()
width
HTML attribute, specifying the width of the coordinate space in CSS pixels.void setWidth(int arg)
CanvasRenderingContext getContext(String contextId)
CanvasRenderingContext2D Object, whereas calling it with "experimental-webgl" returns a WebGLRenderingContext Object.String toDataURL(String type)
Returns a data: URL containing a representation of the image in the format specified by type (defaults to PNG).
"data:," representing the empty string, is returned.image/png, and the returned value starts with data:image/png, then the requested type is not supported.image/webp type.image/jpeg or image/webp, then the second argument, if it is between 0.0 and 1.0, is treated as indicating image quality; if the second argument is anything else, the default value for image quality is used. Other arguments are ignored.Copyright © 2016. All rights reserved.