Bitblt - OK, I'll try try again

[_R]

I need to establish a canvas for sorts, for painting primarily single
line pictures. Lines and images are currently drawn into raw
graphics space which is derived from a control, using LockBits.

I'm wondering if there is a quicker way to do this (like a wrapper for
Win32 DibSection with PInvoke'd BitBlt?)

 

[Ollie Riches]

check out this resource, it has some good info about graphics

http://www.bobpowell.net/

HTH

Ollie Riches

 

[_R]

check out this resource, it has some good info about graphics

http://www.bobpowell.net/

Thanks, Ollie. I have been to Bob's site, but didn't see anything
relating speeds of PInvoked Win32 calls. I was kind of hoping that
Bob or someone would jump in here. <g> I know this must have been
explored in detail.

 

[Ollie Riches]

have you tried www.pinvoke.net

HTH

Ollie Riches

 

[Ollie Riches]

in fact here you go

http://www.pinvoke.net/default.aspx/gdi32.CreateDIBSection

HTH

Ollie Riches

 

[_R]

in fact here you go

http://www.pinvoke.net/default.aspx/gdi32.CreateDIBSection

Great resource, thanks. They even have a short stretch of sample code
for bitblt. I have seen PInvoked Bitblt code posted before but always
as "Why doesn't this work."

I guess I'll have to code both GDI and GDI+ and run my own benchmarks.
I had expected those numbers to be available somewhere, as well as
some organized classes for PInvoking GDI functions. You'd think...