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" <[e-mail]> wrote in message
news:uh********************************@4ax.com...

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?)

[_R]

>"_R" <[e-mail]> wrote in message

news:uh********************************@4ax.com.. .

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?)

On Sat, 10 Sep 2005 19:19:53 +0100, "Ollie Riches"
<ol**********@phoneanalyser.net> wrote:
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

"_R" <[e-mail]> wrote in message
news:uh********************************@4ax.com...

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]

in fact here you go

http://www.pinvoke.net/default.aspx/...eateDIBSection

HTH

Ollie Riches

"_R" <[e-mail]> wrote in message
news:0j********************************@4ax.com...

"_R" <[e-mail]> wrote in message
news:uh********************************@4ax.com. ..

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?)

On Sat, 10 Sep 2005 19:19:53 +0100, "Ollie Riches"
<ol**********@phoneanalyser.net> wrote:

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.

[_R]

>> >"_R" <[e-mail]> wrote in message

news:uh********************************@4ax.com ...
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?)

On Sun, 11 Sep 2005 18:53:41 +0100, "Ollie Riches"
<ol**********@phoneanalyser.net> wrote:
in fact here you go

http://www.pinvoke.net/default.aspx/...eateDIBSection

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...