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HGScannerLib C# demo 完善

This commit is contained in:
luoliangyi 2023-01-13 16:58:22 +08:00
parent 4e62858753
commit 05c20b1fb8
1 changed files with 78 additions and 69 deletions
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147
test/scannerlib/huagao/c#/WindowsFormsApp1/Form1.cs
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@ -20,6 +20,73 @@ namespace WindowsFormsApp1
InitializeComponent(); InitializeComponent();
} }
private Bitmap createBitmap(UIntPtr image)
{
IntPtr imageData = HGScannerLib.HGLib_GetImageData(image);
HGScannerLib.HGLibImageInfo imageInfo;
imageInfo.width = 0;
imageInfo.height = 0;
imageInfo.type = 0;
imageInfo.widthStep = 0;
imageInfo.origin = 0;
HGScannerLib.HGLib_GetImageInfo(image, ref imageInfo);
Bitmap curBitmap = null;
if (imageInfo.type == 1) // BINARY
{
curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
System.Drawing.Imaging.PixelFormat.Format1bppIndexed, imageData);
System.Drawing.Imaging.ColorPalette palette = curBitmap.Palette;
palette.Entries[0] = Color.FromArgb(0, 0, 0);
palette.Entries[1] = Color.FromArgb(255, 255, 255);
curBitmap.Palette = palette;
}
else if (imageInfo.type == 2) // GRAY
{
curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
System.Drawing.Imaging.PixelFormat.Format8bppIndexed, imageData);
System.Drawing.Imaging.ColorPalette palette = curBitmap.Palette;
for (int i = 0; i < palette.Entries.Length; i++)
{
palette.Entries[i] = Color.FromArgb(i, i, i);
}
curBitmap.Palette = palette;
}
else if (imageInfo.type == 3) // BGR
{
curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
System.Drawing.Imaging.PixelFormat.Format24bppRgb, imageData);
}
else if (imageInfo.type == 4) // RGB
{
curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
Rectangle rect = new Rectangle(0, 0, (int)imageInfo.width, (int)imageInfo.height);
System.Drawing.Imaging.BitmapData bmpData = curBitmap.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
unsafe
{
byte* dest = (byte*)(bmpData.Scan0);
byte* src = (byte*)imageData;
for (int i = 0; i < (int)imageInfo.height; i++)
{
for (int j = 0; j < (int)imageInfo.width; j++)
{
dest[i * bmpData.Stride + j * 3 + 0] = src[i * imageInfo.widthStep + j * 3 + 2];
dest[i * bmpData.Stride + j * 3 + 1] = src[i * imageInfo.widthStep + j * 3 + 1];
dest[i * bmpData.Stride + j * 3 + 2] = src[i * imageInfo.widthStep + j * 3 + 0];
}
}
}
curBitmap.UnlockBits(bmpData);
}
return curBitmap;
}
private void button1_Click(object sender, EventArgs e) private void button1_Click(object sender, EventArgs e)
{ {
UIntPtr image = HGScannerLib.HGLib_LoadImage(StringToUtf8("1.jpg")); UIntPtr image = HGScannerLib.HGLib_LoadImage(StringToUtf8("1.jpg"));
@ -33,68 +100,7 @@ namespace WindowsFormsApp1
saveParam.ocr = 0; saveParam.ocr = 0;
HGScannerLib.HGLib_SaveImage(image, StringToUtf8("2.jpg"), ref saveParam); HGScannerLib.HGLib_SaveImage(image, StringToUtf8("2.jpg"), ref saveParam);
IntPtr imageData = HGScannerLib.HGLib_GetImageData(image); Bitmap curBitmap = createBitmap(image);
HGScannerLib.HGLibImageInfo imageInfo;
imageInfo.width = 0;
imageInfo.height = 0;
imageInfo.type = 0;
imageInfo.widthStep = 0;
imageInfo.origin = 0;
HGScannerLib.HGLib_GetImageInfo(image, ref imageInfo);
Bitmap curBitmap = null;
if (imageInfo.type == 1) // BINARY
{
curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
System.Drawing.Imaging.PixelFormat.Format1bppIndexed, imageData);
System.Drawing.Imaging.ColorPalette palette = curBitmap.Palette;
palette.Entries[0] = Color.FromArgb(0, 0, 0);
palette.Entries[1] = Color.FromArgb(255, 255, 255);
curBitmap.Palette = palette;
}
else if (imageInfo.type == 2) // GRAY
{
curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
System.Drawing.Imaging.PixelFormat.Format8bppIndexed, imageData);
System.Drawing.Imaging.ColorPalette palette = curBitmap.Palette;
for (int i = 0; i < palette.Entries.Length; i++)
{
palette.Entries[i] = Color.FromArgb(i, i, i);
}
curBitmap.Palette = palette;
}
else if (imageInfo.type == 3) // BGR
{
curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, (int)imageInfo.widthStep,
System.Drawing.Imaging.PixelFormat.Format24bppRgb, imageData);
}
else if (imageInfo.type == 4) // RGB
{
curBitmap = new Bitmap((int)imageInfo.width, (int)imageInfo.height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
Rectangle rect = new Rectangle(0, 0, (int)imageInfo.width, (int)imageInfo.height);
System.Drawing.Imaging.BitmapData bmpData = curBitmap.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
unsafe
{
byte* dest = (byte*)(bmpData.Scan0);
byte* src = (byte*)imageData;
for (int i = 0; i < (int)imageInfo.height; i++)
{
for (int j = 0; j < (int)imageInfo.width; j++)
{
dest[i * bmpData.Stride + j * 3 + 0] = src[i * imageInfo.widthStep + j * 3 + 2];
dest[i * bmpData.Stride + j * 3 + 1] = src[i * imageInfo.widthStep + j * 3 + 1];
dest[i * bmpData.Stride + j * 3 + 2] = src[i * imageInfo.widthStep + j * 3 + 0];
}
}
}
curBitmap.UnlockBits(bmpData);
}
curBitmap.Save("3.jpg"); curBitmap.Save("3.jpg");
HGScannerLib.HGLib_ReleaseImage(image); HGScannerLib.HGLib_ReleaseImage(image);
@ -240,13 +246,16 @@ namespace WindowsFormsApp1
String fileName = String.Format("Scan_{0}.jpg", m_scanCount); String fileName = String.Format("Scan_{0}.jpg", m_scanCount);
++m_scanCount; ++m_scanCount;
HGScannerLib.HGLibSaveImageParam saveParam; Bitmap curBitmap = createBitmap(image);
saveParam.size = (UInt32)Marshal.SizeOf(typeof(HGScannerLib.HGLibSaveImageParam)); curBitmap.Save(fileName);
saveParam.jpegQuality = 80;
saveParam.tiffCompression = 4; //HGScannerLib.HGLibSaveImageParam saveParam;
saveParam.tiffJpegQuality = 80; //saveParam.size = (UInt32)Marshal.SizeOf(typeof(HGScannerLib.HGLibSaveImageParam));
saveParam.ocr = 0; //saveParam.jpegQuality = 80;
HGScannerLib.HGLib_SaveImage(image, StringToUtf8(fileName), ref saveParam); //saveParam.tiffCompression = 4;
//saveParam.tiffJpegQuality = 80;
//saveParam.ocr = 0;
//HGScannerLib.HGLib_SaveImage(image, StringToUtf8(fileName), ref saveParam);
} }
public String Utf8ToString(IntPtr str) public String Utf8ToString(IntPtr str)