{"id":4596,"date":"2025-03-07T10:28:32","date_gmt":"2025-03-07T02:28:32","guid":{"rendered":"https:\/\/support.foxitsoftware.cn\/?p=4596"},"modified":"2025-03-07T10:28:32","modified_gmt":"2025-03-07T02:28:32","slug":"%e5%a6%82%e4%bd%95%e4%bb%8e%e4%ba%8c%e8%bf%9b%e5%88%b6%e6%95%b0%e6%8d%ae%e5%8a%a0%e8%bd%bdpdf%e6%96%87%e6%a1%a3%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/support.fuxinsoft.cn\/?p=4596","title":{"rendered":"\u5982\u4f55\u4ece\u4e8c\u8fdb\u5236\u6570\u636e\u52a0\u8f7dPDF\u6587\u6863\uff1f"},"content":{"rendered":"\n<p>ActiveX\u63d0\u4f9b\u7684\u6587\u6863\u6253\u5f00\u63a5\u53e3\uff0c\u4f8b\u5982OpenFile\uff0c\u53ea\u5141\u8bb8\u4f20\u5165URL\u6587\u4ef6\u94fe\u63a5\uff0c\u6216\u8005\u672c\u5730\u6587\u4ef6\u8def\u53e3\u3002<\/p>\n\n\n\n<p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6bd4\u5982\u6d89\u53ca\u6587\u6863\u5b89\u5168\u6216\u8005\u7279\u6b8a\u7684\u6587\u4ef6\u6570\u636e\u83b7\u53d6\u65b9\u5f0f\u53ea\u80fd\u63d0\u4f9b\u6587\u4ef6\u4e8c\u8fdb\u5236\u6570\u636e\uff0c\u90a3\u4e48\u53ef\u4ee5\u901a\u8fc7OpenFileAsync\u63a5\u53e3\u5b9e\u73b0\u4ece\u6587\u4ef6\u4e8c\u8fdb\u5236\u6570\u636e\u52a0\u8f7d\uff1a<\/p>\n\n\n\n<p>\u5907\u6ce8\uff1aOpenAsyncFile\u9700\u8981\u548cSetAsyncFileLen \uff0cSetAsyncFileData,  \u4ee5\u53caOnFetchAsyncFileData \u540c\u65f6\u4f7f\u7528\u3002\u5b8c\u6574\u5b9e\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FileStream fileStream;\/\/\u52a0\u5165\u4ece\u6587\u4ef6\u6d41\u8bfb\u53d6\n\n......\n\nprivate void button1_Click_1(object sender, EventArgs e)\n{\n\nfileStream = new FileStream(@\"C:\\Users\\Administrator\\Downloads\\FoxitPDFSDKDeveloperGuide_c++_CN.pdf\", FileMode.Open, FileAccess.Read);\ntotalSize = fileStream.Length;\/\/ GetFileSize(fileUrl); \/\/ \u83b7\u53d6\u6587\u4ef6\u5927\u5c0f\naxFoxitPDFSDK1.SetAsyncFileLen((int)totalSize);\nbool isOk = axFoxitPDFSDK1.OpenAsyncFile(\"\");\n\n}\n\n\/\/OnFetchAsyncFileData\u4e8b\u4ef6\n\nprivate async void axFoxitPDFSDK1_OnFetchAsyncFileData(object sender, AxFoxitPDFSDKProLib._DFoxitPDFSDKEvents_OnFetchAsyncFileDataEvent e)\n{\nlong offset = e.offset;\nlong size = e.size;\n\/\/\u4eceFileStream\u5206\u7247\u8bfb\u53d6\nawait GetData(offset, size, totalSize);\n}\n\n\/\/\u5206\u7247\u8bfb\u53d6\u6570\u636e\u4f20\u9012\u7ed9ActiveX\n\nprivate async Task GetData( long offset, long size, long totalSize)\n{\n\nbyte&#91;] buffer = new byte&#91;size];\nint bytesRead;\n\n     size = Math.Min(size, totalSize - offset);\n     int f = (int)offset;\n     int s=(int)size;\n     long l = fileStream.Length;\n     {\n         fileStream.Seek(offset, SeekOrigin.Begin);\n         bytesRead = fileStream.Read(buffer, 0, s);\n         IntPtr bufferPtr = Marshal.AllocHGlobal(buffer.Length * sizeof(byte));\n         Marshal.Copy(buffer, 0, bufferPtr, buffer.Length);\n         \/\/\u4f20\u9012ActiveX\u9700\u8981\u7684\u90a3\u90e8\u5206\u6570\u636e\u7247\u6bb5\n         bool res = axFoxitPDFSDK1.SetAsyncFileData((int)bufferPtr, (int)offset, (int)buffer.Length);\n         string data = System.Text.Encoding.UTF8.GetString(buffer, 0, bytesRead);\n         Console.WriteLine(data);\n         return buffer;\n     }\n\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>ActiveX\u63d0\u4f9b\u7684\u6587\u6863\u6253\u5f00\u63a5\u53e3\uff0c\u4f8b\u5982OpenFile\uff0c\u53ea\u5141\u8bb8\u4f20\u5165URL\u6587\u4ef6\u94fe\u63a5\uff0c\u6216\u8005\u672c\u5730\u6587\u4ef6\u8def\u53e3\u3002 \u5728\u67d0\u4e9b\u60c5 [&hellip;]<\/p>\n","protected":false},"author":31,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[132],"tags":[274,276,269,268],"class_list":["post-4596","post","type-post","status-publish","format-standard","hentry","category-activex","tag-274","tag-276","tag-pdf","tag-268"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","_links":{"self":[{"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/posts\/4596","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/users\/31"}],"replies":[{"embeddable":true,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4596"}],"version-history":[{"count":5,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/posts\/4596\/revisions"}],"predecessor-version":[{"id":4669,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=\/wp\/v2\/posts\/4596\/revisions\/4669"}],"wp:attachment":[{"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/support.fuxinsoft.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}