\u696d\u52d9\u3067\u5229\u7528\u3059\u308bPDF\u3092\u53d6\u308a\u8fbc\u3093\u3060\u3089\u3069\u3046\u3060\u308d\u3046\u3068\u601d\u3044\u5b9f\u9a13\u3002\u3068\u308a\u3042\u3048\u305a\u3001\u30da\u30fc\u30b8\u79fb\u52d5\u3068\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306e\u3088\u3046\u306a\u3082\u306e\u3060\u3051\u3002<\/p>\n
NuGet\u304b\u3089\u3001
\n\u30fbPdfiumViewer
\n\u30fbPdfiumViewer.Native.x86.v8-xfa
\n\u306e\uff12\u3064\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3002<\/p>\n
using PdfiumViewer;\r\nusing System;\r\nusing System.Drawing;\r\nusing System.Windows.Forms;\r\n\r\nnamespace PDFViewer\r\n{\r\n public partial class Form1 : Form\r\n {\r\n PdfDocument _Document;\r\n int _PageNum = 1;\r\n int _PageW;\r\n int _PageH;\r\n\r\n public Form1()\r\n {\r\n InitializeComponent();\r\n\r\n _Document = PdfDocument.Load(@\"G:\\Download\\i.pdf\");\r\n var size = _Document.PageSizes[0];\r\n _PageW = PointToPixel(size.Width);\r\n _PageH = PointToPixel(size.Height);\r\n\r\n HeaderEventAttach();\r\n SideEventAttach();\r\n\r\n RenderDocument();\r\n\r\n int maxPage = _Document.PageCount - 1;\r\n hScrollBar1.Maximum = maxPage + hScrollBar1.LargeChange - 1;\r\n hScrollBar1.Scroll += (s, e) =>\r\n {\r\n _PageNum = e.NewValue;\r\n RenderDocument();\r\n };\r\n }\r\n\r\n private void SideEventAttach()\r\n {\r\n MemoText.KeyDown += (s, e) =>\r\n {\r\n if (e.KeyCode != Keys.Enter) return;\r\n\r\n var sender = (TextBox)s;\r\n if (sender.Text == \"\") return;\r\n\r\n listBox1.ValueMember = \"Page\";\r\n listBox1.DisplayMember = \"Title\";\r\n\r\n listBox1.Items.Add(new {\r\n Page = _PageNum.ToString(),\r\n Title = sender.Text + \"#\" + _PageNum.ToString()\r\n });\r\n\r\n MemoText.Text = \"\";\r\n };\r\n\r\n listBox1.MouseDoubleClick += (s, e) =>\r\n {\r\n if (listBox1.IndexFromPoint(new Point(e.X, e.Y)) == -1) return;\r\n\r\n if ((ModifierKeys & Keys.Control) == Keys.Control)\r\n {\r\n listBox1.Items.RemoveAt(listBox1.SelectedIndex);\r\n }\r\n else\r\n {\r\n dynamic items = listBox1.SelectedItem;\r\n int.TryParse(items.Page, out int result);\r\n _PageNum = result;\r\n\r\n RenderDocument();\r\n }\r\n };\r\n }\r\n\r\n private void HeaderEventAttach()\r\n {\r\n NextButton.Click += (s, e) =>\r\n {\r\n if (_PageNum > _Document.PageCount - 1) return;\r\n\r\n _PageNum++;\r\n RenderDocument();\r\n hScrollBar1.Value = _PageNum;\r\n };\r\n\r\n PrevButton.Click += (s, e) =>\r\n {\r\n if (_PageNum <= 0) return;\r\n \r\n _PageNum--;\r\n RenderDocument();\r\n hScrollBar1.Value = _PageNum;\r\n };\r\n\r\n PageNumText.KeyDown += (s, e) =>\r\n {\r\n if (e.KeyCode == Keys.Enter)\r\n {\r\n var sender = (TextBox)s;\r\n int.TryParse(sender.Text, out int result);\r\n _PageNum = result;\r\n RenderDocument();\r\n }\r\n\r\n if (e.KeyCode == Keys.Right)\r\n {\r\n NextButton.PerformClick();\r\n RenderDocument();\r\n }\r\n\r\n if (e.KeyCode == Keys.Left)\r\n {\r\n PrevButton.PerformClick();\r\n RenderDocument();\r\n }\r\n };\r\n }\r\n\r\n private void RenderDocument()\r\n {\r\n pictureBox1.Image = _Document.Render(_PageNum - 1, _PageW, _PageH, DeviceDpi, DeviceDpi, false);\r\n PageNumText.Text = Convert.ToString(_PageNum);\r\n }\r\n\r\n private int PointToPixel(float point)\r\n {\r\n return (int)(DeviceDpi * point) \/ 72;\r\n }\r\n }\r\n}\r\n<\/pre>\n <\/p>\n","protected":false},"excerpt":{"rendered":"
\u696d\u52d9\u3067\u5229\u7528\u3059\u308bPDF\u3092\u53d6\u308a\u8fbc\u3093\u3060\u3089\u3069\u3046\u3060\u308d\u3046\u3068\u601d\u3044\u5b9f\u9a13\u3002\u3068\u308a\u3042\u3048\u305a\u3001\u30da\u30fc\u30b8\u79fb\u52d5\u3068\u30d6\u30c3\u30af\u30de\u30fc\u30af\u306e\u3088\u3046\u306a\u3082\u306e\u3060\u3051\u3002 NuGet\u304b\u3089\u3001 \u30fbPdfiumViewer \u30fbPdfiumViewer.Native.x86.v8-xfa … <\/p>\n