\n \n<\/p>\n
\r\n\r\n\tprivate: WebClient ^WebClient1;\r\n\r\n\r\n\r\n\r\n\r\n\t\/\/*******************************\r\n\t\/\/*******************************\r\n\t\/\/********** FORM LOAD **********\r\n\t\/\/*******************************\r\n\t\/\/*******************************\r\n\tprivate: System::Void frmInstallControlCentre_Load(System::Object^ sender, System::EventArgs^ e)\r\n\t{\r\n\t\ttry\r\n\t\t{\r\n\t\t\t\/\/----- CREATE DIRECTORY -----\r\n\t\t\tif (!Directory::Exists(TEMP_DOWNLOAD_DIRECTORY))\r\n\t\t\t\tDirectory::CreateDirectory(TEMP_DOWNLOAD_DIRECTORY);\r\n\r\n\r\n\t\t\t\/\/----- DELETE FILE IF IT ALREADY EXISTS -----\r\n\t\t\ttry\r\n\t\t\t{\r\n\t\t\t\tif (File::Exists(TEMP_DOWNLOAD_DIRECTORY + "SomeFile.txt"))\r\n\t\t\t\t{\r\n\t\t\t\t\t\/\/If file has read only attribute set clear it so that delete can occur\r\n\t\t\t\t\tif ((File::GetAttributes(TEMP_DOWNLOAD_DIRECTORY + "SomeFile.txt") & FileAttributes::ReadOnly) == FileAttributes::ReadOnly)\r\n\t\t\t\t\t\tFile::SetAttributes(TEMP_DOWNLOAD_DIRECTORY + "SomeFile.txt", FileAttributes::Normal);\r\n\r\n\t\t\t\t\tFile::Delete(TEMP_DOWNLOAD_DIRECTORY + "SomeFile.txt");\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\tcatch (IOException ^)\r\n\t\t\t{\r\n\t\t\t\tGlobalObjects::EventLog1->AddEvent(true, 0x00, "Can't delete existing SomeFile.txt file");\r\n\t\t\t}\r\n\r\n\t\t\t\/\/----- START THE DOWNLOAD -----\r\n\t\t\tlblState->Text = "Downloading file...";\r\n\t\t\tString ^url = "http:\/\/www.somedomain.com\/SomeFile.txt";\r\n\r\n\t\t\t\/\/ Create an instance of WebClient\r\n\t\t\tWebClient1 = gcnew WebClient();\r\n\r\n\t\t\tWebClient1->DownloadFileCompleted += gcnew AsyncCompletedEventHandler(this, &frmInstallControlCentre::DownloadFileCompleted);\r\n\t\t\tWebClient1->DownloadProgressChanged += gcnew DownloadProgressChangedEventHandler(this, &frmInstallControlCentre::DownloadFileProgressCallback);\r\n\r\n\t\t\tWebClient1->DownloadFileAsync(gcnew Uri(url), TEMP_DOWNLOAD_DIRECTORY + "SomeFile.txt");\r\n\t\t}\r\n\t\tcatch (Exception ^e)\r\n\t\t{\r\n\t\t\tGlobalObjects::EventLog1->AddEvent(true, 0x00, Convert::ToString(e));\r\n\t\t}\r\n\t}\r\n\r\n\r\n\t\/\/************************************************\r\n\t\/\/************************************************\r\n\t\/\/********** DOWNLOAD PROGRESS CALLBACK **********\r\n\t\/\/************************************************\r\n\t\/\/************************************************\r\n\tvoid DownloadFileProgressCallback(System::Object^ sender, System::Net::DownloadProgressChangedEventArgs ^ e)\r\n\t{\r\n\t\tif ((e->ProgressPercentage >= 0) && (e->ProgressPercentage <= 100))\r\n\t\t\tDownloadProgressBar->Value = e->ProgressPercentage;\r\n\t}\r\n\r\n\r\n\t\/\/************************************************\r\n\t\/\/************************************************\r\n\t\/\/********** DOWNLOAD COMPLETED CALLBACK **********\r\n\t\/\/************************************************\r\n\t\/\/************************************************\r\n\tvoid DownloadFileCompleted(System::Object^ sender, System::ComponentModel::AsyncCompletedEventArgs^ e)\r\n\t{\r\n\t\tif (e->Cancelled)\r\n\t\t{\r\n\t\t\t\/\/CANCELLED\r\n\r\n\t\t}\r\n\t\telse if (e->Error != nullptr)\r\n\t\t{\r\n\t\t\t\/\/AN ERROR OCCURED\r\n\r\n\t\t}\r\n\t\telse\r\n\t\t{ \r\n\t\t\t\/\/SUCCESS\r\n\r\n\t\t}\r\n\t}\r\n\r\n\r\n\t\/\/***********************************\r\n\t\/\/***********************************\r\n\t\/\/********** CANCEL BUTTON **********\r\n\t\/\/***********************************\r\n\t\/\/***********************************\r\n\tprivate: System::Void btnCancel_Click(System::Object^ sender, System::EventArgs^ e)\r\n\t{\r\n\r\n\t\t\/\/Cancel the download if it is active\r\n\t\ttry\r\n\t\t{\r\n\t\t\tif (WebClient1 != nullptr)\r\n\t\t\t\tWebClient1->CancelAsync();\r\n\t\t}\r\n\t\tcatch (Exception ^)\r\n\t\t{\r\n\t\t}\r\n\r\n\t\tthis->Close();\r\n\t}\r\n<\/code><\/pre>\n\n <\/p>\n","protected":false},"excerpt":{"rendered":"
private: WebClient ^WebClient1; \/\/******************************* \/\/******************************* \/\/********** FORM LOAD ********** \/\/******************************* \/\/******************************* private: System::Void frmInstallControlCentre_Load(System::Object^ sender, System::EventArgs^ e) { try { \/\/—– CREATE DIRECTORY —– if (!Directory::Exists(TEMP_DOWNLOAD_DIRECTORY)) Directory::CreateDirectory(TEMP_DOWNLOAD_DIRECTORY); \/\/—– DELETE FILE IF IT ALREADY EXISTS —– try { if (File::Exists(TEMP_DOWNLOAD_DIRECTORY + "SomeFile.txt")) { \/\/If file has read only attribute set clear it so that delete […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-851","post","type-post","status-publish","format-standard","hentry","category-tcp-ip"],"_links":{"self":[{"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/posts\/851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/comments?post=851"}],"version-history":[{"count":5,"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/posts\/851\/revisions"}],"predecessor-version":[{"id":1188,"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/posts\/851\/revisions\/1188"}],"wp:attachment":[{"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/media?parent=851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/categories?post=851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ibex.tech\/visualcpp\/wp-json\/wp\/v2\/tags?post=851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}