public static void SaveScreenshot(Stream stream, FormatImage format)
{
System.Diagnostics.Process p = Warframe.GetProcess();
if (p == null)
{
throw new Exception();
}
IntPtr ptr = p.MainWindowHandle;
User32.Rect rect = new User32.Rect();
User32.GetWindowRect(ptr, ref rect);
int width = rect.Right - rect.Left;
int height = rect.Bottom - rect.Top;
if (height == 0 || width == 0)
{
return;
}
using (Bitmap bitmap = new Bitmap(width, height, PixelFormat.Format24bppRgb))
{
using (var graphics = Graphics.FromImage(bitmap))
{
graphics.CopyFromScreen(rect.Left, rect.Top, 0, 0, new Size(width, height));
graphics.Save();
graphics.Dispose();
Bitmap bit;
switch (format)
{
case FormatImage.TIFF:
bit = MakeGrayscale3(bitmap);
bit.Save(stream, System.Drawing.Imaging.ImageFormat.Tiff);
bit.Dispose();
break;
case FormatImage.PNG:
default:
bit = MakeGrayscale3(bitmap);
bit.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
bit.Dispose();
#if DEBUG
//using (FileStream file = new FileStream("shot_" + DateTime.Now.ToString("HH_mm_ss") + ".png", FileMode.Create, FileAccess.Write))
//{
// ((MemoryStream)stream).WriteTo(file);
//}
#endif
break;
}
}
}
}
//上传图片
public async Task <IActionResult> Picture([FromServices] IWebHostEnvironment env, [FromForm] IFormFile imgFile)
{
if (imgFile != null && imgFile.Length > 0 && imgFile.Length < 20971520)
{
var fileExt = Path.GetExtension(imgFile.FileName);
var filePath = Path.Combine(env.WebRootPath, Guid.NewGuid().ToString());
var picture = new EditPictureViewModel
{
Origin = $"{filePath}_Origin{fileExt}",
Big = $"{filePath}_Big{fileExt}",
Small = $"{filePath}_Small{fileExt}"
};
using (var stream = imgFile.OpenReadStream())
{
FormatImage.AutoToSmall(stream, picture.Big, 1080);
FormatImage.AutoToSmall(stream, picture.Small, 260);
}
await _pictureService.AddPicture(picture);
}
return(View());
}
//上传图片
public async Task <IActionResult> Picture([FromServices] IWebHostEnvironment env, [FromForm] IFormFile imgFile)
{
//图片最大<18M
if (imgFile != null && imgFile.Length > 0 && imgFile.Length < 18874368)
{
//图片扩展名
var fileExt = Path.GetExtension(imgFile.FileName);
var rootPath = env.WebRootPath;
//按年月归档图片
var now = DateTime.Now;
var timePath = Path.Combine(now.Year.ToString(), now.Month.ToString());
var filePath = Path.Combine("photo", timePath);
//创建图片目录
if (!Directory.Exists(Path.Combine(rootPath, filePath)))
{
Directory.CreateDirectory(Path.Combine(rootPath, filePath));
}
filePath = Path.Combine(filePath, Guid.NewGuid().ToString());
var picture = new EditPictureViewModel
{
//原图可能太大，暂时不保存
Origin = $"{filePath}_origin{fileExt}",
Big = $"{filePath}_big{fileExt}",
Small = $"{filePath}_small{fileExt}"
};
using (var stream = imgFile.OpenReadStream())
{
//为了不影响图片观感，建议图片质量值设置为80以上
await FormatImage.AutoToSmall(stream, Path.Combine(rootPath, picture.Big), 1920, 99);
await FormatImage.AutoToSmall(stream, Path.Combine(rootPath, picture.Small), 1080, 99);
}
await _pictureService.AddPicture(picture);
}
return(View());
}