Develop Reference

Moving file selected in listview to another folder with button

I've got problem with moving selected file in listview using button to another folder, my code:
public void button2_Click(object sender, EventArgs e)
{
string[] files = Directory.GetFiles(#"C:\Users\Mkzz\Desktop\doki");
string destinyFodler = #"C:\Users\Mkzz\Desktop\doki\test1\*.tif";
listView1.Dispose();
foreach (string file in files)
{
File.Move(file, destinyFodler);
}
}
It gives me error „The process cannot access the file because it is being used by another process.”. Files loaded to listview are .tif ' s images, they are also loaded into picturebox.
Is there any way to fix this?

Try loading the PictureBox controls using a clone image e.g.
public class ImageHelpers
{
public static Image LoadImageClone(string Path)
{
Bitmap imageClone = null;
var imageOriginal = Image.FromFile(Path);
imageClone = new Bitmap(imageOriginal.Width, imageOriginal.Height); // create clone, initially empty, same size
using (var gr = Graphics.FromImage(imageClone))
{
gr.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.None;
gr.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
gr.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighSpeed;
gr.DrawImage(imageOriginal, 0, 0, imageOriginal.Width, imageOriginal.Height); //copy original image onto this surface
}
imageOriginal.Dispose();
return imageClone;
}
}
Test we can delete the image after assigning the image to a PictureBox
private void LoadImageButton_Click(object sender, EventArgs e)
{
pictureBox1.Image = ImageHelpers.LoadImageClone("Folders.png");
File.Delete("Folders.png");
}
Note I'm not the author of this code, picked the code up many years ago.

Using Tesseract OCR in C#

I have trying to deploy tesseract for reading the clipboard image through the code below in a C# window.form. But, a black commandline window appears and nothing happens.
private void b1_Click(object sender, EventArgs e)
{
if (ofd1.ShowDialog() == DialogResult.OK)
{
var img = new Bitmap(ofd1.FileName);
var ocr = new TessBaseAPI("./tessdata", "eng", OcrEngineMode.DEFAULT);
var page = ocr.SetImage(img);
tb1.Text = page.ToString();
}
}
The error it gives is cannot convert from 'System.Drawing.Bitmap' to 'Leptonica.Pix' hope this can be improved.

Instead of creating a bitmap, try using a Pix object like:
var img = Tesseract.Pix.LoadFromFile(ofd1.FileName)

Saving image from "pictureBox1" to a file with a click on a button in C#

I found this code on here, and I want to save the image I get in my "pictureBox1" with a button like under, how can I implement these together?
I have the picture showing in the pictureBox1, I want to click a button and be able to store the picture on my PC.
private void button1_Click(object sender, EventArgs e)
This is the code to save image:
public static void SaveImageCapture(System.Drawing.Image image)
SaveFileDialog s = new SaveFileDialog();
s.FileName = "Image";// Default file name
s.DefaultExt = ".Jpg";// Default file extension
s.Filter = "Image (.jpg)|*.jpg"; // Filter files by extension
s.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
s.RestoreDirectory = true;
if (s.ShowDialog() == DialogResult.OK)
{
// Save Image
string filename = s.FileName;
(System.IO.FileStream fstream = new System.IO.FileStream(filename, System.IO.FileMode.Create))
{
image.Save(fstream, System.Drawing.Imaging.ImageFormat.Jpeg);
fstream.Close();

I am also not 100% sure i understand what you mean. but here is a 2 lines of codes, showing the simplest way of loading and saving an image into a picturebox.
// 1. Load a picture into the picturebox
PictureBox pic = new PictureBox() { Image = Image.FromFile("SomeFile.jpg") };
// 2. Save it to a file again
pic.Image.Save("SomeFilePath.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);

I fixed it by doing this:
private void btnSave_Click(object sender, EventArgs e)
{
pictureBox1.Image.Save(#"C:\Temp\test.jpg",System.Drawing.Imaging.ImageFormat.Jpeg);
}
}

Orientation of PDF when viewing with Ghostscript

My application shows PDFs in a picture box by using Ghostscript. The PDFs I use are scanned images with a text layer. created by the OCR function from Acrobat Pro. This OCR function automatically sets the orientation according to the direction of the text. When the page is displayed in the picture box this information is lost. It just displays every page in portrait mode.
Is there a way for Ghostscript to access this property of the PDF and display it in the correct orientation in the picture box?
public Form1()
{
InitializeComponent();
_viewer = new GhostscriptViewer();
_viewer.DisplaySize += new GhostscriptViewerViewEventHandler(_viewer_DisplaySize);
_viewer.DisplayPage += new GhostscriptViewerViewEventHandler(_viewer_DisplayPage);
NumberOfPagesToExtract = 1;
_viewer.Open("NoFile.pdf", _gsVersion, true);
}
void _viewer_DisplaySize(object sender, GhostscriptViewerViewEventArgs e)
{
pictureBox1.Image = e.Image;
}
void _viewer_DisplayPage(object sender, GhostscriptViewerViewEventArgs e)
{
pictureBox1.Invalidate();
pictureBox1.Update();
currentPageNumber = _viewer.CurrentPageNumber;
LastPageNumber = _viewer.LastPageNumber;
lblTotalNmbPages.Text = " / " + LastPageNumber.ToString();
txtCurrentPgNmbr.Text = currentPageNumber.ToString();
}
The code to open the file:
private void btnOpenPdfGhostScript_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Title = "Open PDF file";
ofd.Filter = "PDF, PS, EPS files|*.pdf;*.ps;*.eps";
if (ofd.ShowDialog(this) == System.Windows.Forms.DialogResult.OK)
{
btnCLose_Click(this, null);
_viewer.Open(ofd.FileName, _gsVersion, true);
currentFilePath = ofd.FileName;
currentPageNumber = _viewer.CurrentPageNumber;
LastPageNumber = _viewer.LastPageNumber;
lblCurrentFIle.Text = ofd.FileName; //System.IO.Path.GetFileName(ofd.FileName);
if (backgroundWorker1.IsBusy != true) backgroundWorker1.RunWorkerAsync();
}
currentPageNumber = 1;
progressBar1.Value = 0;
}

I'm not sure if I should answer my own questions, but the problem is solved by updating to version 1.1.8. Thanks to HABJAN. Thanks very much.

The first thing to do is to use Ghostscript directly from the command line, rather than in an application. The main reason is that you can then supply a GS command line which other people can use, experiment with and comment on.
I can't see from your code how Ghostscript is invoked.
Ghostscript should, in general, honour the /MediaBox (and optionally /CropBox etc.) as well as the /Rotate attribute of pages.
But without a sample file and command line, I can't give you any suggestions.

Confusion about OpenFileDialog

I am following this tutorial and downloaded source code to practice, and it works. The problem occurs when I rewrite the code: just one image is added instead of all the selected images. What am I doing wrong here?
private void button1_Click(object sender, EventArgs e)
{
ofd.Filter = "Images (*.BMP;*.JPG;*.GIF,*.PNG,*.TIFF)|*.BMP;*.JPG;*.GIF;*.PNG;*.TIFF|" +
"All files (*.*)|*.*";
ofd.Multiselect = true;
if (ofd.ShowDialog() == DialogResult.OK)
{
foreach (string name in ofd.FileNames)
{
PictureBox imageControl = new PictureBox();
imageControl.Width = 100;
imageControl.Height = 100;
Image.GetThumbnailImageAbort CallBck = new Image.GetThumbnailImageAbort(ThumbnailCallback);
Bitmap myBitmap = new Bitmap(name);
Image img = myBitmap.GetThumbnailImage(97, 97, CallBck, IntPtr.Zero);
imageControl.Image = img;
panel1.Controls.Add(imageControl);
}
}
}

I'll bet they are all being added but they're just all going on top of each other at location (0,0) in the panel (you should step through your code to check this though).
The solution: Either manually specify a location for each new PictureBox, or use a layout control such as a FlowLayoutPanel.