HttpContext.Current.Session is null (Inside WebService)
[WebMethod(EnableSession = true)]
public void SomeMethod()
{
... code here
}
C# Crop white space from around the image
This code will crop the image based on all white and transparent pixels from around the image public static Bitmap CropWhiteSpace(Bitmap bmp) { int w = bmp.Width; int h = bmp.Height; int white = 0xffffff; Func allWhiteRow = r => { for (int i = 0; i allWhiteColumn = c => { for (int i = 0; i = 0; --row) { if (!allWhiteRow(row)) break; bottommost = row; } int leftmost = 0, rightmost = 0; for (int col = 0; col = 0; --col) { if (!allWhiteColumn(col)) break; rightmost = col; } if (rightmost == 0) rightmost = w; // As reached left if (bottommost == 0) bottommost = h; // As reached top. int croppedWidth = rightmost - leftmost; int croppedHeight = bottommost - topmost; if (croppedWidth == 0) // No border on left or right { leftmost = 0; croppedWidth = w; } if (croppedHeight == 0) // No border on top or bottom { topmost = 0; croppedHeight = h; } try { var target = new Bi...
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