BufferedBitmap not working in Visual Studio Code

2412314 over 4 years ago

Hi,

I am currently developing a DataField that requires the use of BufferedBitmap. Here is a part of the code:

I have an error when I run the program :

Do you have an idea ?

jim_m_58 over 4 years ago

Which target device? For devices running CIQ4 (venu2/2+, F7,Epix2) you use createBufferedBitmap.

2412314 over 4 years ago in reply to jim_m_58

Once again thank you very much. Yes I have a venu2+ ...

2412314 over 4 years ago in reply to 2412314

Is there any documentation for the method createBufferedBitmap ?

Indeed, once you write :

screen01 = Graphics.createBufferedBitmap({:width=>416, :height=>416});

How it is possible to have the dc for this Bitmap, in order to use drawLine, drawPoint, ...

jim_m_58 over 4 years ago in reply to 2412314

You need to do a get() on your screen01. The you can get the dc.

2412314 over 4 years ago in reply to jim_m_58

Thanks Jim.

I tried

screen01 = Graphics.createBufferedBitmap({:width=>416, :height=>416}).get();

screen01.drawPoint(208+Math.floor(x), 208-Math.floor(y));

and I have got the following error:

MobileDriveway over 4 years ago in reply to 2412314

Now you need to call .getDc() on your screen01, and then draw on that Dc.

GARMIN, API level 4 is out for a while now, and we still don't have a single sample code using "createBufferedBitmap"!