Google API for Charts

[byron.hopp]

When using Google API for Charts in a WinForms application is there a way to return the chart drawn by Google in a graphic file format so it can be displayed in the Winforms app dialog, and printed, and so on?

[Antonio Linares]

Dear Byron,

From javascript you can use this:

Code: Select all  Expand view

// Get the element you want to capture as a screenshot
const targetElement = document.getElementById('elementId'); // Replace 'elementId' with the ID of the element you want to capture

// Create a temporary canvas
const canvas = document.createElement('canvas');
canvas.width = targetElement.offsetWidth;
canvas.height = targetElement.offsetHeight;

// Capture the element's image onto the canvas
const context = canvas.getContext('2d');
context.drawWindow(
  window,
  targetElement.getBoundingClientRect().left,
  targetElement.getBoundingClientRect().top,
  targetElement.offsetWidth,
  targetElement.offsetHeight,
  'rgb(255,255,255)'
);

// Create a link to download the screenshot
const screenshotImage = canvas.toDataURL('image/png');
const downloadLink = document.createElement('a');
downloadLink.href = screenshotImage;
downloadLink.download = 'screenshot.png';
document.body.appendChild(downloadLink);
downloadLink.click();
document.body.removeChild(downloadLink);
 

From FWH you may use oWnd:SaveToBmp( cBmpFile )

[byron.hopp]

Thank you, I will try this out.