Teechart save to bitmap file pdf#
Teechart save to bitmap file update#

TChart has its own 3DPDF class to interpret its.NET native canvas primitives to PDF's 'canvas language'. Code to draw rectangle is: CDC myDc myDC GetDlgItem (IDCSTATICPICTURE)->GetDC () myDC->Draw3DRect. Once user finishes drawing with a rectangle, I want to store this rectangle as a bitmap image onto the disk. This I am doing using mouseDown, mouseMove and mouseUp events.

Teechart save to bitmap file pdf#

Code: Bitmap bitmap = new Bitmap(1, 1, PixelFormat.Format24bppRgb) Graphics gRef = Graphics.FromImage(bitmap) IntPtr hDC = gRef.GetHdc Metafile mf = new (new MemoryStream, hDC) gRef.ReleaseHdc(hDC) gRef.Dispose gRef = Graphics.FromImage(mf) aChart.Draw(gRef, new Rectangle(0, 0, width, height)) //internal Draw methodAgain, all very standard.NET procedure for drawing to a printer canvas and for Metafile creation.PDF exportation is a different issue as the PDF has its own proprietory 'canvas language' which PDF readers can render. Then I am asking user to draw a rectangle onto picture control. When you are done with the drawing, you click the 'Save' button, specify a path name, and then the program saves your entire scribbling to disk as a 24-bit Windows bitmap file. At runtime you can display the export dialogue by using the Chart TeeExport method.

Teechart save to bitmap file update#

Files are small (data dependent) and ideal for network use to update live client based Charts. If you do, please don't hesitate to let us know. It allows you to scribble free-hand shapes on a static control within a dialog box. Tee format is a flexible format that stores Chart property information and, optionally, Chart data.

You may like to experiment yourself with JPEG file creation using the Bitmap available from the property to see if you can find a better way to create a JPEG. Code: Bitmap b = new Bitmap(width, height, pixelformat) //width and height of chartDraw(Graphics.FromImage(b)) //internal teechart draw methodreturn b This methodology is completely standard to the.NET Framework, as you can see, and as yet we have been able to find an alternative way to create JPEG files. So you could see it yourself?Kind regards,Erwin.