"lockbits method" Code Answer's
You're definitely familiar with the best coding language Whatever that developers use to develop their projects and they get all their queries like "lockbits method" answered properly. Developers are finding an appropriate answer about lockbits method related to the Whatever coding language. By visiting this online portal developers get answers concerning Whatever codes question like lockbits method. Enter your desired code related query in the search bar and get every piece of information about Whatever code related question on lockbits method.
lockbits method
//Lock bitmap's bits to system memory
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
BitmapData bmpData = bmp.LockBits(rect, ImageLockMode.ReadWrite, bmp.PixelFormat);
//Scan for the first line
IntPtr ptr = bmpData.Scan0;
//Declare an array in which your RGB values will be stored
int bytes = Math.Abs(bmpData.Stride) * bmp.Height;
byte[] rgbValues = new byte[bytes];
//Copy RGB values in that array
Marshal.Copy(ptr, rgbValues, 0, bytes);
for (int i = 0; i < rgbValues.Length; i += 3)
{
//Set RGB values in a Array where all RGB values are stored
byte gray = (byte)(rgbValues[i] * .21 + rgbValues[i + 1] * .71 + rgbValues[i + 2] * .071);
rgbValues[i] = rgbValues[i + 1] = rgbValues[i + 2] = gray;
}
//Copy changed RGB values back to bitmap
Marshal.Copy(rgbValues, 0, ptr, bytes);
//Unlock the bits
bmp.UnlockBits(bmpData);
Source: epochabuse.com
lockbits method
for (int i = 0; i < bmp.Width; i++)
{
for (int j = 0; j < bmp.Height; j++)
{
Color c = bmp.GetPixel(i, j);
//Apply conversion equation
byte gray = (byte)(.21 * c.R + .71 * c.G + .071 * c.B);
//Set the color of this pixel
bmp.SetPixel(i, j, Color.FromArgb(gray, gray, gray));
}
}
Source: epochabuse.com
All those coders who are working on the Whatever based application and are stuck on lockbits method can get a collection of related answers to their query. Programmers need to enter their query on lockbits method related to Whatever code and they'll get their ambiguities clear immediately. On our webpage, there are tutorials about lockbits method for the programmers working on Whatever code while coding their module. Coders are also allowed to rectify already present answers of lockbits method while working on the Whatever language code. Developers can add up suggestions if they deem fit any other answer relating to "lockbits method". Visit this developer's friendly online web community, CodeProZone, and get your queries like lockbits method resolved professionally and stay updated to the latest Whatever updates.