本文整理汇总了C#中FileStream.WriteShort方法的典型用法代码示例。如果您正苦于以下问题：C# FileStream.WriteShort方法的具体用法？C# FileStream.WriteShort怎么用？C# FileStream.WriteShort使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类FileStream的用法示例。
在下文中一共展示了FileStream.WriteShort方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Main
static int Main(string[] args)
{
if (args.Length < 1)
{
Console.WriteLine("You need to include at least one GIF, JPEG, PNG, TIFF, WMF, EMF, BMP, or ICO file on the command line");
}
for (int i = 0; i < args.Length; i++)
{
Bitmap img = null;
FileStream bmp = null;
try
{
// Open the source image
img = new Bitmap(args[i]);
// Get the name of the new file (replace extension with .bmp)
String name = args[i];
int dot = name.LastIndexOf(".");
if (dot > 0)
name = name.Remove(dot);
name += ".bmp";
// Calculate the size of the bitmap data in the image
int w = img.Width, h = img.Height, bmpSize = w * h * 4;
// Open the BMP file
bmp = new FileStream(name, FileMode.Create, FileAccess.Write);
// Write BMP Magic Number
bmp.WriteByte((byte)'B');
bmp.WriteByte((byte)'M');
// Write BMP File Header
bmp.WriteLong(54+bmpSize); // Size of the entire file
bmp.WriteLong(0); // Reserved WORDs 1 and 2
bmp.WriteLong(54); // Bitmap data start (always 54)
// Write Bitmap data header
bmp.WriteLong(40); // Header size (40 for Windows V3 / BITMAPINFOHEADER)
bmp.WriteLong(w); // Image width
bmp.WriteLong(h); // Image height
bmp.WriteShort(1); // Number of color planes (must be 1)
bmp.WriteShort(32); // Bits per pixel (32 for full color and alpha images)
bmp.WriteLong(0); // Compression type (0 for no compression)
bmp.WriteLong(bmpSize); // Size of the bitmap data
bmp.WriteLong(2835); // Horizontal resolution of image (2835 px/m is typical)
bmp.WriteLong(2835); // Vertical resolution of image (2835 px/m is typical)
bmp.WriteLong(0); // Number of colors in palette (0 for no palette)
bmp.WriteLong(0); // Number of important colors in palette (0 for all colors are important)
// Write bitmap data
bmp.Seek(54, SeekOrigin.Begin);
for (int y = h - 1; y >= 0; y--)
{
for (int x = 0; x < w; x++)
{
Color c = img.GetPixel(x, y);
byte[] px = { c.B, c.G, c.R, c.A }; // BMP file is backwards (BGRA instead of ARGB)
px[0] = (byte)(px[0] * px[3] / 255); // We must pre-multiply the alpha values
px[1] = (byte)(px[1] * px[3] / 255);
px[2] = (byte)(px[2] * px[3] / 255);
bmp.Write(px, 0, 4); // Write the pixel
}
}
}
catch (Exception ex)
{
Console.Error.WriteLine("There was a problem converting " + args[i] + ": " + ex.Message);
}
finally
{
if (bmp != null) bmp.Dispose();
if (img != null) img.Dispose();
}
}
return 0;
}