ISE3DuotoneImage

[guest]

Hi Chris,

I am having problems with the ISE3DuotoneImage function. I keep getting a GPF with the following code:

'Create a memory buffer to hold the image
tmpRGB = GlobalAlloc(0, uWidth * uHeight * 3)

'Copy the image to tmpRGB
IS3DCToRGB picTemp.hDC, 0, 0, uWidth, uHeight, tmpRGB
    
'Perform DuoTone transform
ISE3DuotoneImage tmpRGB, uWidth, uHeight, 3, uWidth * uHeight * 3, Color, 0

I am still new to the IS3Effects Dll - what am I doing wrong?

Thanks for your help! Thanks for your patience!

Sincerely,
Ed Porter

[SilentZone]

Row stride should be uWidth * 3.

Also, if you're using my type library, I've updated it to fix a few bugs. You can get it [link:www.gcjrsoftware.com/downloads/GcjrTypeLibs12.exe|here].

[guest]

Hi SilentZone,

Your suggestion worked! I changed the rowstride to uWidth*3.

The resulting image is very dark with bands of pixels in "off color" shades. What suggestions do you have for getting the results in the Demo?

I appreciate you help!

Sincerely,
Ed Porter

[Chris]

the demo doesn't do anything special with the parameters. whatever you put into the duotone parameters is what gets passed to the function.

try using a brighter tint color.

--
chris losinger
smallest@smalleranimals.com