LEADTOOLS JavaScript (Leadtools)
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LTHelper Object
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The following tables list the members exposed by LTHelper.
| Name | Description | |
|---|---|---|
  | Browser | Gets or sets the current browser. |
| Device | Gets or sets the current device. |
| LicenseDirectory | The server directory path where LEADTOOLS looks for the license file. |
| MSPointerEnabled | Gets or sets a value indicating whether the current browser supports the Windows 8 style touch input. |
| OS | Gets or sets the current operating system. |
| SupportsAnimationFrame | Gets or sets a value indicating whether the current browser supports the HTML 5 animation frame. |
| SupportsCanvas | Gets or sets a value indicating whether the current browser supports HTML 5 Canvas element. |
| SupportsCSSTransitions | Gets or sets a value indicating whether the current browser supports CSS3 Transitions, either through the normal transition rule or a vendor prefix such as webkitTransition/webkit-transition. |
| SupportsFileReader | Gets or sets a value indicating whether the current browser supports the File/FileReader API, including the File, FileReader, URL, and Blob objects. |
| SupportsHTMLPointerEvents | Gets or sets a value indicating whether the current browser supports the CSS rule pointer-events for HTML elements. |
| SupportsMouse | Gets or sets a value indicating whether the current browser supports mouse input. |
| SupportsMultiTouch | Gets or sets a value indicating whether the current browser supports multi-touch input. |
| SupportsScroll | Gets or sets a value indicating whether the current browser supports scrollbars. |
| SupportsTouch | Gets or sets a value indicating whether the current browser supports touch input. |
| SupportsTransform | Gets or sets a value indicating whether the current browser supports HTML transformation. |
| SupportsTypedArray | Gets or sets a value indicating whether the current browser supports HTML typed arrays. |
| SupportsWebGL | Gets or sets a value indicating whether the current browser supports WebGL. |
| SupportsWebWorker | Gets or sets a value indicating whether the current browser supports HTML 5 Web Workers. |
| Vendor | Gets or sets the current browser vendor. |
| Version | Gets or sets the current browser version. |
| Name | Description | |
|---|---|---|
 | AddClass | Adds the specified class string to the HTML or SVG element's current class list. |
| Base64Decode | Decodes a Base 64 encoded string and returns the result as a byte array. |
| Base64DecodeToArrayBuffer | Decodes a Base 64 encoded string and returns the result as an array buffer. |
| Base64DecodeToByteArray | Decodes a Base 64 encoded string and returns the result as a byte array. |
| Base64Encode | Encodes a byte array as Base 64 and returns the result. |
| Base64EncodeFromArrayBuffer | Encodes an array buffer as Base 64 and returns the result. |
| EnsureUsableCanvas | Helper method to ensure that a canvas of a given size is usable. |
| HasClass | Checks an HTML or SVG element for the given class string. |
| LoadJS | Helper method to dynamically load a JS file and add it to the script section of the current document. |
| RemoveClass | Removes the specified class string from the HTML or SVG element's current class list. |
| RemoveJS | Helper method to dynamically remove a JS file previously loaded from the script section of the current document. |