Erase part of an image

Hi,

I'm having the following problem:
I copy a small image variable onto a bigger image using dCopy.
Both images use transparency, no solid background.
Now after the copy action the previous content of the copied area is still visible underneath in the destination image.
So there was a merge instead of an overwrite.
How do I erase the original content of the copied area?
I tried first drawing a transparent rectangle in the destination image, but it also does not erase the destination area.
I could not find any erase function, so I'm stuck here.
I thought of using dCopBlt, but I'm reluctant since it is no longer supported.
Any ideas?

Kind regards,
Piet

Hi Piet

MyImageField="" before doing your copy should do the trick

Best regards

Fabrice Harari
International WinDev, WebDev and WinDev mobile Consulting

Free Video Courses, free WXShowroom.com, open source WXReplication, open
source WXEDM.

More information on [www.fabriceharari.com]

Hi Fabrice,

I'm sorry if I was not clear, but I only want to erase part of the image, while keeping transparency.

Kind regards,
Piet

Hi Piet,

so If I understand correctly, you want the transparency to act as transparency is SOME cases, but not all.

I do not think that is going to work...

The only way I would see that as possible would be to work on a byte level and transform the image as you want it...

So, basically, transform both images into array, then merge the two array the specific way you want by code, then transform the final array into an image and display it

Best regards

Fabrice Harari
International WinDev, WebDev and WinDev mobile Consulting

Free Video Courses, free WXShowroom.com, open source WXReplication, open
source WXEDM.

More information on [www.fabriceharari.com]

Hi Fabrice,

That's a possibility, I could build my own dErase function, But I was surprised that there's no function for that. There's such a variety of drawing functions available that I'm suprised it does not include a dErase function of some sort.
Thanks anyway.

Kind regards,
Piet