how can i get each pixel's color of my picturebox

[mrdj1002]

Hi guys
I wanted to see, How can I get Each pixel’s color In a picturebox The main Purpese I’m doing this is that I want to find out which pixels’ of my image file are More darker than the others.
Can any body help?
Thank u very much

[filburt1]

In a PictureBox, use the Point method: http://msdn.microsoft.com/library/en...asp?frame=true

[abdul]

Use "Pixel" and "Point" to set and get the pixel on a picturebox.

[mrdj1002]

but it seems that it gives me the color of each point in a smaller unit than pixel(maybe twips) how can i take the pixels' color?

[mrdj1002]

hellllllllllooo
can't anyone answer?

[plenderj]

Set the scalemode of the picturebox to 3, and use the GetPixel API call

[proff.hacker]

try this code

Private Declare Function GetPixel Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, _
    ByVal y As Long) As Long
Dim pixelColor As Long
pixelColor = GetPixel(Picture1.hdc, x, y)

[mrdj1002]

I guess that if I set scalemode to pixel then no more API call will be needed if the point method would work for pixels after that. don't u think so? or the api call works faster?

[Serge]

FYI, pixel is the smallest unit that is displayed on the screen.

[mrdj1002]

no pixel is 12*12 twips

[plenderj]

"Virtually" perhaps. But physically the smallest definable/displayable unit on the screen is a pixel

[mrdj1002]

yeah maybe on the monitor screen it's so. but when working with printer u can difine and use twip coz some printers r more accuret than monitors

[plenderj]

*cough* 2 nil *cough*
*mutter* pansy goalie *mutter*

[Serge]

mrdj1002 even for the printer, Pixel - is the smallest unit:
Also, twips are screen independent measurements.

Check out ScaleMode Property for a reference.

[mrdj1002]

thanks serg. but u should complain the auther of the book i read this thing in it. and hey plendreg i didn't understand what u said. BTW it seems that u hammerd us in dublin but hey watch out your guys in tehran

[plenderj]

Ypur goalkeeper was ... for want of a better word ... a pansy.
He was useless and kept pretending he was hurt. He should have been given a red card !