View Full Version : Reading a Graphics File in VB 2005


GaryM
06-23-2007, 12:10 AM
Just wondering if anyone has any source code for reading each pixel in a jpg gif bmp ect? Any help would be appreciated!!

Gary

Switcher
06-23-2007, 09:50 PM
This should get you started.

The code is in VB.NET 2005, it may not be the fastest way to plot pixels, maybe it will help you out?

Open one of the bmp, that I included in the zip, then click "Start Plot".

I attached a screenshot of the project in the zip, & a screenshot of the generated g-code, plotted in NcPlot ( www.ncplot.com ) .

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Switcher
06-23-2007, 10:17 PM
Also try a search inside the VB.NET 2005 "Help/Search" for "GetPixel".


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Switcher
06-23-2007, 11:12 PM
Another way to go about this is with "Bitmap.LockBits".

I've read it is much faster than "Getpixel" (I havn't tried "Bitmap.LockBits", yet).

Example:
1) http://msdn2.microsoft.com/en-us/library/5ey6h79d.aspx

2) http://www.devx.com/vb2themax/Tip/18776?type=kbArticle&trk=MSCP




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GaryM
06-23-2007, 11:35 PM
Switcher,

Thanks alot man I will check this stuff out!

Gary

Switcher
06-23-2007, 11:51 PM
Let me know If you get "Bitmap.LockBits", working. :)

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