Faster Image Save in C#

[vipergt023]

Hello,

Does anyone know if there is a faster way to save BMPs in C#?

Currently, I'm using this:

MemoryStream ms = new MemoryStream();
picture.Save(ms , System.Drawing. Imaging.ImageFo rmat.Png);

But it's taking around 80 ms. Is there a way to improve that? I'm writing a screen capture application, so coupled with the time it takes to capture the desktop (around 80 ms also), it's not as responsive as I'd like it to be. I'm also sending the images off over the network, so smaller file sizes are better.

TIA.

Vinoj

[Plater]

I would guess that the time consumptions occurs durring the PNG encoding process

[vipergt023]

I've tried the different options (tif, jpeg, gif, etc) and that has the best time/size/quality ratio.

[joedeene]

i've read somewhere on another forum about using a memory stream could take longer to load the bitmap, rather than writing a physical file to the harddrive, and he noticed a less speed issue when not using the debugger. so try that maybe ?

joedeene

[vipergt023]

That's a good idea to start with. I'll try that - compiling in release mode and trying to get some stats from that.