AsposeFontGetGlyphCount

AsposeFontGetGlyphCount function

Get glyph count of font.

function AsposeFontGetGlyphCount(
    fileBlob,
    fileName
)

Parameter	Type	Description
fileBlob	Blob object	Content of source font for convert.
fileName	string	File name.

Return Value

JSON object

Field	Description
errorCode	code error (0 no error)
errorText	text error ("" no error)
glyphCount	count of glyphs

Examples

Web Worker example:

  /*Create Web Worker*/
  const AsposeFontWebWorker = new Worker("AsposeFontforJS.js");
  AsposeFontWebWorker.onerror = (evt) => console.log(`Error from Web Worker: ${evt.message}`);
  AsposeFontWebWorker.onmessage = (evt) => document.getElementById("output").textContent =
    evt.data == "ready"
      ? "loaded!"
      : evt.data.json.errorCode == 0
      ? "Glyph count: " + evt.data.json.glyphCount
      : `Error: ${evt.data.json.errorText}`;

  /*Event handler*/
  const ffileFontGetGlyphCount = e => {
    const file_reader = new FileReader();
    file_reader.onload = event => {
      /*Get glyph count of font - Ask Web Worker*/
      AsposeFontWebWorker.postMessage({ "operation": 'AsposeFontGetGlyphCount', "params": [event.target.result, e.target.files[0].name] }, [event.target.result]);
    };
    file_reader.readAsArrayBuffer(e.target.files[0]);
  };

Simple example:

  var ffileFontGetGlyphCount = function (e) {
    const file_reader = new FileReader();
    file_reader.onload = (event) => {
      const json = AsposeFontGetGlyphCount(event.target.result, e.target.files[0].name);
      if (json.errorCode == 0) {
        document.getElementById('output').textContent = "Glyph count: " + json.glyphCount;
      }
      else document.getElementById('output').textContent = json.errorText;
    }
    file_reader.readAsArrayBuffer(e.target.files[0]);
  }