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public string OpenFile(string strFilter) { string strFileName = string.Empty; OpenFileDialog openFile = new OpenFileDialog(); openFile.Filter = strFilter; openFile.FilterIndex = 1; if (openFile.ShowDialog() == DialogResult.OK) { strFileName = openFile.FileName; } return strFileName; }
public void ExportPic(PictureBox picBox) { SaveFileDialog saveFile = new SaveFileDialog(); saveFile.Filter = "图像文件(*.PNG)|*.PNG|所有文件(*.*)|*.*"; if (saveFile.ShowDialog() == DialogResult.OK) { string fileName = saveFile.FileName; string strExtension = Path.GetExtension(fileName); switch (strExtension) { case ".png": picBox.Image.Save(fileName, System.Drawing.Imaging.ImageFormat.Png); break; case ".PNG": picBox.Image.Save(fileName, System.Drawing.Imaging.ImageFormat.Png); break; case ".jpg": picBox.Image.Save(fileName, System.Drawing.Imaging.ImageFormat.Jpeg); break; case ".jpeg": picBox.Image.Save(fileName, System.Drawing.Imaging.ImageFormat.Jpeg); break; default: break; } } }
public byte[] FileToBytes(string filePath) { FileInfo fileInfo = new FileInfo(filePath); byte[] buffer = new byte[fileInfo.Length]; FileStream fs = fileInfo.OpenRead(); fs.Read(buffer, 0, Convert.ToInt32(fileInfo.Length)); fs.Close(); return buffer; }
public void CreateFile(byte[] fileBuffer,string newFilePath) { if (File.Exists(newFilePath)) { File.Delete(newFilePath); } FileStream fs = new FileStream(newFilePath, FileMode.CreateNew); BinaryWriter bw = new BinaryWriter(fs); bw.Write(fileBuffer, 0, fileBuffer.Length); bw.Close(); fs.Close(); }
public Image Bytes2Img(byte[] buffer) { MemoryStream ms = new MemoryStream(buffer); ms.Position = 0; Image img = Image.FromStream(ms); ms.Close(); return img; }
public byte[] Img2Bytes(Image img) { byte[] bytes = null; MemoryStream ms = new MemoryStream(); img.Save(ms, ImageFormat.Png); bytes = ms.GetBuffer(); ms.Close(); return bytes; }
public byte[] ImgFile2Bytes(string strPicFile) { if (string.IsNullOrEmpty(strPicFile)) return null; byte[] bytes = null; MemoryStream ms = new MemoryStream(); Image img = Image.FromFile(strPicFile); img.Save(ms, ImageFormat.Png); bytes = ms.GetBuffer(); ms.Close(); return bytes; }
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