topic Inventor API Save as JPEG with Transparent Background in Inventor Forum

Inventor API Save as JPEG with Transparent Background

Anonymous — Thu, 19 Sep 2019 18:06:39 GMT

I have been scouring the forum and API help section to see if there is a command similar to "SaveAsBitmapWithOptions" for JPEG, but haven't found anything. What I want to be able to do is shown in the code, but I need to export to JPEG for my cloud database. I can change the file type to .JPG, but I lose the ability to make the background transparent. Is there a command to do this, or a workaround to convert the exported .BMP to .JPG?

Public Sub ExportToJPG()
    ' Get the active view.
    Dim oView As View
    Set oView = ThisApplication.ActiveView
    
 'Create a new NameValueMap Object
    Dim oOptions As NameValueMap
    Set oOptions = ThisApplication.TransientObjects.CreateNameValueMap '.TransientObjects.CreateNameValueMap
    
    oOptions.Value("TransparentBackground") = True

    Call oView.SaveAsBitmapWithOptions("C:\Temp\TestB.bmp", 200, 150, oOptions)
End Sub

Re: Inventor API Save as JPEG with Transparent Background

mcgyvr — Thu, 19 Sep 2019 18:15:00 GMT

JPEG files don't support transparent backgrounds..

PNG will..

Re: Inventor API Save as JPEG with Transparent Background

Curtis_W — Thu, 19 Sep 2019 18:16:55 GMT

Hi @Anonymous

Firstly API related questions are better handled on the Inventor Customization forum :
http://forums.autodesk.com/t5/Autodesk-Inventor-Customization/bd-p/120

Secondly, I don't think JPG supports transparent backgrounds, so if you save a file that has a transparent background to JPG the transparency is lost and you just get a white background.

So would a JPG with a white back ground work?

I hope this helps.
Best of luck to you in all of your Inventor pursuits,
Curtis
http://inventortrenches.blogspot.com

Re: Inventor API Save as JPEG with Transparent Background

Anonymous — Thu, 19 Sep 2019 18:21:41 GMT

Didn't realize JPEG did not support transparent background. .PNG will work for my application. Thanks for the help!