Re: Why does not update color?

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#1986

From: Barbu_Bogdan
Date: Sat, 03 Jul 2004 14:56

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I resolved the problem :

I was mixing access methods here. BeginBaseAddressAccess() an ASByte pointer, which I can use to walk thru the image and set values in the 0 to 255 range. Like:
ASByte* theImage = sADMImage->BeginBaseAddressAccess(imageRef);
for(long i=0;i<imageLen;i++) { theImage[i] = 128; } sADMImage->EndBaseAddressAccess(imageRef);

On the other hand, SetPixel is expecting an ASRGBColor, which expects a short, so color values in the 0 to 255 range should be shifted left by 8:

color.red = (100 << 8);

Either method works, but SetPixel() is much slower to call repeatedly, so it's not the best method for speed.

Bogdan.

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Subject: Re: Why does not update color?
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Date: Sat, 3 Jul 2004 07:56:54 -0700
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