本文整理汇总了C#中System.Drawing.Bitmap.ToStream方法的典型用法代码示例。如果您正苦于以下问题：C# Bitmap.ToStream方法的具体用法？C# Bitmap.ToStream怎么用？C# Bitmap.ToStream使用的例子？那么恭喜您, 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System.Drawing.Bitmap的用法示例。
在下文中一共展示了Bitmap.ToStream方法的4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: ToUrl
public static string ToUrl(this ImageFile file, int width = 0)
{
if (width > 0)
{
var fileName = GetFileName(file, width);
if (File.Exists(FileHelper.GetPath(fileName)))
{
return ImageHelper.GetUrl(fileName);
}
try
{
var source = FileHelper.GetPath(file.FileName);
var img = Image.FromFile(source);
if (img.Width > width)
{
var bitmap = new Bitmap(width, GetTargetHeight(img.Width, width, img.Height));
var g = Graphics.FromImage(bitmap);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(img, 0, 0, width, GetTargetHeight(img.Width, width, img.Height));
g.Dispose();
FileHelper.SaveToFile(bitmap.ToStream(ImageFormat.Jpeg), fileName);
return ImageHelper.GetUrl(fileName);
}
}
catch { }
}
return ImageHelper.GetUrl(file.FileName);
}示例2: Install
//.........这里部分代码省略.........
cgb.CreateCommand(Prefix + "hs")
.Description("Searches for a Hearthstone card and shows its image. Takes a while to complete.\n**Usage**:~hs Ysera")
.Parameter("name", ParameterType.Unparsed)
.Do(async e =>
{
var arg = e.GetArg("name");
if (string.IsNullOrWhiteSpace(arg))
{
await e.Channel.SendMessage("💢 Please enter a card name to search for.").ConfigureAwait(false);
return;
}
await e.Channel.SendIsTyping().ConfigureAwait(false);
var headers = new Dictionary<string, string> { { "X-Mashape-Key", NadekoBot.Creds.MashapeKey } };
var res = await SearchHelper.GetResponseStringAsync($"https://omgvamp-hearthstone-v1.p.mashape.com/cards/search/{Uri.EscapeUriString(arg)}", headers)
.ConfigureAwait(false);
try
{
var items = JArray.Parse(res);
var images = new List<Image>();
if (items == null)
throw new KeyNotFoundException("Cannot find a card by that name");
var cnt = 0;
items.Shuffle();
foreach (var item in items.TakeWhile(item => cnt++ < 4).Where(item => item.HasValues && item["img"] != null))
{
images.Add(
Image.FromStream(await SearchHelper.GetResponseStreamAsync(item["img"].ToString()).ConfigureAwait(false)));
}
if (items.Count > 4)
{
await e.Channel.SendMessage("⚠ Found over 4 images. Showing random 4.").ConfigureAwait(false);
}
await e.Channel.SendFile(arg + ".png", (await images.MergeAsync()).ToStream(System.Drawing.Imaging.ImageFormat.Png))
.ConfigureAwait(false);
}
catch (Exception ex)
{
await e.Channel.SendMessage($"💢 Error {ex.Message}").ConfigureAwait(false);
}
});
cgb.CreateCommand(Prefix + "osu")
.Description("Shows osu stats for a player.\n**Usage**:~osu Name")
.Parameter("usr", ParameterType.Unparsed)
.Do(async e =>
{
if (string.IsNullOrWhiteSpace(e.GetArg("usr")))
return;
using (WebClient cl = new WebClient())
{
try
{
cl.CachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.NoCacheNoStore);
cl.Headers.Add(HttpRequestHeader.UserAgent, "Mozilla/5.0 (Windows NT 6.2; Win64; x64)");
cl.DownloadDataAsync(new Uri($"http://lemmmy.pw/osusig/sig.php?uname={ e.GetArg("usr") }&flagshadow&xpbar&xpbarhex&pp=2"));
cl.DownloadDataCompleted += async (s, cle) =>
{
try
{
await e.Channel.SendFile($"{e.GetArg("usr")}.png", new MemoryStream(cle.Result)).ConfigureAwait(false);
await e.Channel.SendMessage($"`Profile Link:`https://osu.ppy.sh/u/{Uri.EscapeDataString(e.GetArg("usr"))}\n`Image provided by https://lemmmy.pw/osusig`").ConfigureAwait(false);
}
catch { }
};示例3: ResizeImage
public static Stream ResizeImage(this Image imgToResize, Size size, ImageFormat imageFormat, bool crop)
{
if (!crop)
{
var sourceWidth = imgToResize.Width;
var sourceHeight = imgToResize.Height;
float nPercent;
var nPercentW = (size.Width / (float)sourceWidth);
var nPercentH = (size.Height / (float)sourceHeight);
if (nPercentH < nPercentW)
nPercent = nPercentH;
else
nPercent = nPercentW;
var destWidth = (int)(sourceWidth * nPercent);
var destHeight = (int)(sourceHeight * nPercent);
var testHeight = (int)destHeight;
var b = new Bitmap(destWidth, destHeight);
var g = Graphics.FromImage((Image)b);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(imgToResize, 0, 0, destWidth, testHeight);
g.Dispose();
return b.ToStream(imageFormat);
}else
{
var sourceWidth = imgToResize.Width;
var sourceHeight = imgToResize.Height;
float nPercent;
var nPercentW = (size.Width / (float)sourceWidth);
var nPercentH = (size.Height / (float)sourceHeight);
var hStart = 0;
var vStart = 0;
if (nPercentH < nPercentW)
{
nPercent = nPercentW;
vStart = (int)(((float)sourceHeight / 2)*nPercent - (float)size.Height / 2 );
}
else
{
nPercent = nPercentH;
hStart =(int)((((float)sourceWidth / 2)*nPercent) - (float)size.Width / 2 );
}
var scaleWidth = (int)(sourceWidth * nPercent);
var scaleHeight = (int)(sourceHeight * nPercent);
var b = new Bitmap(size.Width, size.Height);
var g = Graphics.FromImage(b);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(imgToResize, -hStart, -vStart, scaleWidth, scaleHeight);
g.Dispose();
return b.ToStream(imageFormat);
}
}示例4: ResizeImage
public static Stream ResizeImage(Image imgToResize, Size size, ImageFormat imageFormat)
{
var sourceWidth = imgToResize.Width;
var sourceHeight = imgToResize.Height;
float nPercent;
var nPercentW = (size.Width / (float)sourceWidth);
var nPercentH = (size.Height / (float)sourceHeight);
if (nPercentH < nPercentW)
nPercent = nPercentH;
else
nPercent = nPercentW;
var destWidth = (int)(sourceWidth * nPercent);
var destHeight = (int)(sourceHeight * nPercent);
var b = new Bitmap(destWidth, destHeight);
var g = Graphics.FromImage((Image)b);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.DrawImage(imgToResize, 0, 0, destWidth, destHeight);
g.Dispose();
return b.ToStream(imageFormat);
}