c# find color or image

[Bmbm873]

okay im trying to do somthing quite simpel i am wanting to make c# find the color of a pizel on the screen and then move the mouse to that pixel how can i do this. I now how to do this in auto it and scar but not c# little help would go along way thank you

[WhiteShizzle]

How to use Visual C# to obtain the color of the pixel that is referenced by the mouse pointer

Might help.

[Bmbm873]

Hmm maybe ill message with it some. if I dont get it in a while I might have to ask for help do you understand this stuff deathdude or are you just giving me this as a reference thank you already for your help though.

If you do i might pm you a coupld questions thank you

[Bmbm873]

okay I found this on another webpage

public static Point PixelSearch(Rectangle rect, int PixelColor, int Shade_Variation)
{
Color Pixel_Color = Color.FromArgb(PixelColor);

Point Pixel_Coords = new Point(-1, -1);
Bitmap RegionIn_Bitmap = CaptureScreenRegion(rect);
BitmapData RegionIn_BitmapData = RegionIn_Bitmap.LockBits(new Rectangle(0, 0, RegionIn_Bitmap.Width, RegionIn_Bitmap.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);

int[] Formatted_Color = new int[3] { Pixel_Color.B, Pixel_Color.G, Pixel_Color.R }; //bgr

unsafe
{
for (int y = 0; y < RegionIn_BitmapData.Height; y++)
{
byte* row = (byte*)RegionIn_BitmapData.Scan0 + (y * RegionIn_BitmapData.Stride);

for (int x = 0; x < RegionIn_BitmapData.Width; x++)
{
if (row[x * 3] >= (Formatted_Color[0] - Shade_Variation) & row[x * 3] <= (Formatted_Color[0] + Shade_Variation)) //blue
{
if (row[(x * 3) + 1] >= (Formatted_Color[1] - Shade_Variation) & row[(x * 3) + 1] <= (Formatted_Color[1] + Shade_Variation)) //green
{
if (row[(x * 3) + 2] >= (Formatted_Color[2] - Shade_Variation) & row[(x * 3) + 2] <= (Formatted_Color[2] + Shade_Variation)) //red
{
Pixel_Coords = new Point(x + rect.X, y + rect.Y);
goto end;
}
}
}
}
}
}

end:
return Pixel_Coords;
}

private static Bitmap CaptureScreenRegion(Rectangle rect)
{
Bitmap BMP = new Bitmap(rect.Width, rect.Height, PixelFormat.Format24bppRgb);
Graphics GFX = System.Drawing.Graphics.FromImage(BMP);
GFX.CopyFromScreen(rect.X, rect.Y, 0, 0, rect.Size, CopyPixelOperation.SourceCopy);
return BMP;
}

And it says it will do exactly what I want but I cant get it to work what includes should I add and how can I make it find the color and move my mouse to those coordinates thank you in advance im just not really having a good time with this lol

[abuckau907]

You need a couple API's:

(vb.net code - sry )

//Move the Mouse
    Public Declare Function SetCursorPos Lib "user32.dll" (ByVal X As Int32, ByVal Y As Int32) As Boolean

//Get Pixel Colors
    Declare Function GetPixel Lib "gdi32" (ByVal hDC As IntPtr, ByVal x As Integer, ByVal y As Integer) As Integer
    Declare Function GetDesktopWindow Lib "user32" () As IntPtr
    Declare Function GetWindowDC Lib "user32" (ByVal hWnd As IntPtr) As IntPtr
    Declare Function ReleaseDC Lib "user32.dll" (ByVal hWnd As IntPtr, ByVal hDC As IntPtr) As Integer

Example:
    Public Function GetPixelColor(ByVal x As Int32, ByVal y As Int32) As Short()

        Dim hWnd As New IntPtr(0)
        Dim hDC As IntPtr
        hWnd = GetDesktopWindow()
        hDC = GetWindowDC(hWnd)

        Dim lColor As Int32 = GetPixel(hDC, x, y)
        ReleaseDC(hWnd, hDC)
        '' convert to rgb
        Dim rgbs(2) As Short
        rgbs(0) = ColorTranslator.FromWin32(lColor).R
        rgbs(1) = ColorTranslator.FromWin32(lColor).G
        rgbs(2) = ColorTranslator.FromWin32(lColor).B
        Return rgbs
    End Function

GetPixel doesn't return a color in rgb format (not exactly..instead it returns a Int32 like 1234546.) There are better ways than returning it as an array..up to you to decide. --> Dim tCol As Color = ColorTranslator.FromWin32(lColor)
return tCol;