HGScannerLib C# demo 完善
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@ -20,6 +20,73 @@ namespace WindowsFormsApp1
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InitializeComponent();
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}
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private Bitmap createBitmap(UIntPtr image)
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{
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IntPtr imageData = HGScannerLib.HGLib_GetImageData(image);
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HGScannerLib.HGLibImageInfo imageInfo;
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imageInfo.width = 0;
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imageInfo.height = 0;
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imageInfo.type = 0;
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imageInfo.widthStep = 0;
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imageInfo.origin = 0;
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HGScannerLib.HGLib_GetImageInfo(image, ref imageInfo);
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Bitmap curBitmap = null;
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if (imageInfo.type == 1) // BINARY
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{
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curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
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System.Drawing.Imaging.PixelFormat.Format1bppIndexed, imageData);
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System.Drawing.Imaging.ColorPalette palette = curBitmap.Palette;
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palette.Entries[0] = Color.FromArgb(0, 0, 0);
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palette.Entries[1] = Color.FromArgb(255, 255, 255);
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curBitmap.Palette = palette;
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}
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else if (imageInfo.type == 2) // GRAY
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{
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curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
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System.Drawing.Imaging.PixelFormat.Format8bppIndexed, imageData);
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System.Drawing.Imaging.ColorPalette palette = curBitmap.Palette;
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for (int i = 0; i < palette.Entries.Length; i++)
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{
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palette.Entries[i] = Color.FromArgb(i, i, i);
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}
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curBitmap.Palette = palette;
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}
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else if (imageInfo.type == 3) // BGR
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{
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curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
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System.Drawing.Imaging.PixelFormat.Format24bppRgb, imageData);
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}
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else if (imageInfo.type == 4) // RGB
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{
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curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
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Rectangle rect = new Rectangle(0, 0, (int)imageInfo.width, (int)imageInfo.height);
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System.Drawing.Imaging.BitmapData bmpData = curBitmap.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
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unsafe
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{
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byte* dest = (byte*)(bmpData.Scan0);
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byte* src = (byte*)imageData;
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for (int i = 0; i < (int)imageInfo.height; i++)
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{
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for (int j = 0; j < (int)imageInfo.width; j++)
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{
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dest[i * bmpData.Stride + j * 3 + 0] = src[i * imageInfo.widthStep + j * 3 + 2];
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dest[i * bmpData.Stride + j * 3 + 1] = src[i * imageInfo.widthStep + j * 3 + 1];
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dest[i * bmpData.Stride + j * 3 + 2] = src[i * imageInfo.widthStep + j * 3 + 0];
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}
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}
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}
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curBitmap.UnlockBits(bmpData);
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}
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return curBitmap;
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}
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private void button1_Click(object sender, EventArgs e)
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{
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UIntPtr image = HGScannerLib.HGLib_LoadImage(StringToUtf8("1.jpg"));
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@ -33,68 +100,7 @@ namespace WindowsFormsApp1
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saveParam.ocr = 0;
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HGScannerLib.HGLib_SaveImage(image, StringToUtf8("2.jpg"), ref saveParam);
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IntPtr imageData = HGScannerLib.HGLib_GetImageData(image);
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HGScannerLib.HGLibImageInfo imageInfo;
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imageInfo.width = 0;
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imageInfo.height = 0;
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imageInfo.type = 0;
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imageInfo.widthStep = 0;
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imageInfo.origin = 0;
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HGScannerLib.HGLib_GetImageInfo(image, ref imageInfo);
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Bitmap curBitmap = null;
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if (imageInfo.type == 1) // BINARY
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{
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curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
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System.Drawing.Imaging.PixelFormat.Format1bppIndexed, imageData);
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System.Drawing.Imaging.ColorPalette palette = curBitmap.Palette;
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palette.Entries[0] = Color.FromArgb(0, 0, 0);
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palette.Entries[1] = Color.FromArgb(255, 255, 255);
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curBitmap.Palette = palette;
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}
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else if (imageInfo.type == 2) // GRAY
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{
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curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
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System.Drawing.Imaging.PixelFormat.Format8bppIndexed, imageData);
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System.Drawing.Imaging.ColorPalette palette = curBitmap.Palette;
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for (int i = 0; i < palette.Entries.Length; i++)
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{
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palette.Entries[i] = Color.FromArgb(i, i, i);
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}
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curBitmap.Palette = palette;
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}
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else if (imageInfo.type == 3) // BGR
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{
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curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
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System.Drawing.Imaging.PixelFormat.Format24bppRgb, imageData);
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}
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else if (imageInfo.type == 4) // RGB
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{
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curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
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Rectangle rect = new Rectangle(0, 0, (int)imageInfo.width, (int)imageInfo.height);
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System.Drawing.Imaging.BitmapData bmpData = curBitmap.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
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unsafe
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{
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byte* dest = (byte*)(bmpData.Scan0);
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byte* src = (byte*)imageData;
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for (int i = 0; i < (int)imageInfo.height; i++)
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{
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for (int j = 0; j < (int)imageInfo.width; j++)
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{
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dest[i * bmpData.Stride + j * 3 + 0] = src[i * imageInfo.widthStep + j * 3 + 2];
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dest[i * bmpData.Stride + j * 3 + 1] = src[i * imageInfo.widthStep + j * 3 + 1];
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dest[i * bmpData.Stride + j * 3 + 2] = src[i * imageInfo.widthStep + j * 3 + 0];
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}
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}
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}
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curBitmap.UnlockBits(bmpData);
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}
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Bitmap curBitmap = createBitmap(image);
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curBitmap.Save("3.jpg");
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HGScannerLib.HGLib_ReleaseImage(image);
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@ -240,13 +246,16 @@ namespace WindowsFormsApp1
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String fileName = String.Format("Scan_{0}.jpg", m_scanCount);
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++m_scanCount;
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HGScannerLib.HGLibSaveImageParam saveParam;
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saveParam.size = (UInt32)Marshal.SizeOf(typeof(HGScannerLib.HGLibSaveImageParam));
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saveParam.jpegQuality = 80;
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saveParam.tiffCompression = 4;
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saveParam.tiffJpegQuality = 80;
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saveParam.ocr = 0;
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HGScannerLib.HGLib_SaveImage(image, StringToUtf8(fileName), ref saveParam);
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Bitmap curBitmap = createBitmap(image);
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curBitmap.Save(fileName);
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//HGScannerLib.HGLibSaveImageParam saveParam;
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//saveParam.size = (UInt32)Marshal.SizeOf(typeof(HGScannerLib.HGLibSaveImageParam));
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//saveParam.jpegQuality = 80;
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//saveParam.tiffCompression = 4;
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//saveParam.tiffJpegQuality = 80;
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//saveParam.ocr = 0;
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//HGScannerLib.HGLib_SaveImage(image, StringToUtf8(fileName), ref saveParam);
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}
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public String Utf8ToString(IntPtr str)
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