Quickly determines whether the file contains SVG data.
public bool IsSvg(
Public Function IsSvg(
ByVal fileName As String
) As Boolean
The filename containing the source image data.
true if the data is valid SVG; otherwise, false.
This method will check the beginning of the file to determine whether it contains valid SVG data. This involves detecting the value <svg> tag and optionally the SVG namespaces. If this method returns true, then the data is most likely an SVG file and can be safely loaded. Note, however, that the data can possibly contain a corrupted or truncated SVG. In such a case, this method will still return true but subsequent calls to loading the SVG will fail.
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