pixmap window

Hi,

I was under the impression pixmap window cut a chunk out and made a new pixmap. I am creating images. The original pixmap is then destroyed.

However weird errors occur:

http://www.blitzmax.com/Community/posts.php?topic=60220

No the docs state a virtual pixmap is created, use

mypixmap.Window(x,y,w,h).Copy()

if you want to copy a region of the orginal.

A window is a pixmap `header` that points to an existing block of memory in another pixmap object. One pixmap of data is then shared between both pixmaps. It's like defining a viewport in a pixmap.

Hi,

PixmapWindow just returns a 'virtual' window into a pixmap - it doesn't do anything clever beyond that, ie: if the main pixmap is released and you try to use the window you're hosed.

Thanks guys!

If I create an image using LoadImage(pixmap) and destroy the original pixmap, is this safe?

Yes as the Image will maintain an own pixmap if needed.

What do you mean by destroy???

In it's current state, I don't think pixmap windows can safely be used with LoadImage.

Doesn't LoadImage create a copy of the Pixmap??? (I thought it does as my entity system does not break and it uses loadPixmap on a local pixmap instance everywhere it loads anything ... and the images created from that don't break ... I would consider it a serious bug if the TImage fails just because of the object that was used to LoadImage does not exist anymore)