PNG Supported?

TMECHAM · Post by **TMECHAM** » Tue Feb 15, 2005 9:34 pm

I am trying to use a .png for the background image of my chart and I get an error "Unknown picture file extension (.png)" I see that graphs can be exported as .png files. It sure seems like you should be able to use them as backgrounds. Am I missing something?

Thanks.

Post by **Pep** » Wed Feb 16, 2005 1:08 pm

Hi,

this features is not yet available (allow to use .png for the background). I've added on our wish list to be considered for further releases.

Post by **Pep** » Thu Feb 17, 2005 11:22 am

Hi,

some comments on this :
To have PNG, you can download whatever PNG library. There are so big, and we cannot include them into the TeeChart installation. You can see some of them at : http://www.libpng.org/pub/png/pngaptk.html
i.e : http://pngdelphi.sourceforge.net/

TMECHAM · Post by **TMECHAM** » Sat Feb 19, 2005 4:01 pm

Hi,

Can you elaborate a little bit on what you are saying? My application already supports PNG. I am using GDI+ for all of my graphics drawing. The TChart interface however only allows me to pass in a file name to set the back ground image of the IPanel. Are you saying I should be able to draw the PNG in the chart myself or that I could do a conversion into a supported format or what? Thanks for any more information you can provide.