help with bmp getpixel

[Mster]

What i am trying to do is make a sort of wii-mote for my pc. I have already modified my webcam to receive IR light from a remote control, and used the webcam script in the example forums to take a snaphot of that into a bmp every 300 miliseconds. What i need is a way to find out the color of a pixel inside that bmp, so that i can search for the first white one (sign of IR light) and move the mouse accordingly. So far i have tried gdi32.dll, system.drawing.bitmap object to no avail. Please help me i am tired of looking. The getpixel funtion has to be reasonably fast too, and not rely on preloading the image,for obvious reasons.

[martin]

What i am trying to do is make a sort of wii-mote for my pc. I have already modified my webcam to receive IR light from a remote control, and used the webcam script in the example forums to take a snaphot of that into a bmp every 300 miliseconds. What i need is a way to find out the color of a pixel inside that bmp, so that i can search for the first white one (sign of IR light) and move the mouse accordingly. So far i have tried gdi32.dll, system.drawing.bitmap object to no avail. Please help me i am tired of looking. The getpixel funtion has to be reasonably fast too, and not rely on preloading the image,for obvious reasons.

Not sure what you mean by not preloading the image if you are going to move the mouse to a part o fthe picture.

Doesn't PixelSearch do what you want?

[Mster]

I'm sorry, i think i made it pretty confusing. So, the webcam script saves a bmp every 300 miliseconds in C:\shot.bmp.. What i want it to do after taking the shot is to analyse the picture and move the mouse realtive to where the first white pixel in the bitmap is. That way you would have a sort of wii-ish remote by pointing with a remote control at the webcam and moving it. I can't use pixelsearch because the picture will not apperar on the screen for example when playing a game. I hope this makes it clearer.