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(Delphi ActiveX) OneDrive -- Download Binary File to MemoryDownloads a binary file (such as JPG, PDF, etc.) into a BinData object. Note: This example requires Chilkat v9.5.0.68 or greater.
uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_v9_5_0_TLB; ... procedure TForm1.Button1Click(Sender: TObject); var http: TChilkatHttp; fileData: TChilkatBinData; url: WideString; success: Integer; begin // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. http := TChilkatHttp.Create(Self); // Use your previously obtained access token here: // See the following examples for getting an access token: // Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint). // Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint). // Refresh Access Token (Azure AD v2.0 Endpoint). // Refresh Access Token (Azure AD Endpoint). // (Make sure your token was obtained with the FilesRead or Files.ReadWrite scope.) http.AuthToken := 'MICROSOFT_GRAPH_ACCESS_TOKEN'; // Sends the following GET request: // GET https://graph.microsoft.com/v1.0/me/drive/root:/{item-path}:/content // Make sure to automatically follow redirects http.FollowRedirects := 1; // This example will download /Misc/starfish.jpg http.SetUrlVar('item_path','Misc/starfish.jpg'); fileData := TChilkatBinData.Create(Self); url := 'https://graph.microsoft.com/v1.0/me/drive/root:/{$item_path}:/content'; success := http.DownloadBd(url,fileData.ControlInterface); if (http.LastMethodSuccess <> 1) then begin Memo1.Lines.Add(http.LastErrorText); Exit; end; // If the response status code was not 200, then it failed. if (http.LastStatus <> 200) then begin Memo1.Lines.Add('Response Status Code = ' + IntToStr(http.LastStatus)); Memo1.Lines.Add('Failed.'); Exit; end; // If we got here, then the file was successfully downloaded. Memo1.Lines.Add('Download binary from OneDrive successful.'); Memo1.Lines.Add('The file is contained in fileData.'); end; |
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