DwinHs 有一个DwinsHs_Data_Buffer_Length宏。我已将其设置为 的值，8192但下载速度仍然很慢。
例如，我有一个 200 MB 的连接，而文件是 25 MB。下载需要两分半钟。
我已经阅读了这里的一些答案：
分配从 Internet 下载文件的最佳内存缓冲区大小是多少？
它建议使用 16K 缓冲区。无论哪种方式，有什么方法可以在给定用户系统的情况下使用 Pascal 的最大缓冲区长度？
浏览器下载速度更快，为什么我们不能在 Inno Setup 中？
例子
[ISPP]
#define HelpDocSetupURL "https://www.publictalksoftware.co.uk/downloads/PublicTalksHelpDocumentationSetup.exe"
[Setup]
AppID = TestID
AppName = Test App
OutputBaseFilename = My_Test_App_Setup
AppVersion = 1.0
DefaultDirName = {pf}\MyTestApp
DefaultGroupName = My Test App
[Tasks]
Name: "downloadhelp"; Description: "Task Desc"; GroupDescription: "Group Desc";
[Files]
Source: "{tmp}\HelpDocSetup.exe"; \
DestDir: "{app}"; \
Flags: external deleteafterinstall; \
Tasks: downloadhelp; \
Check: DwinsHs_Check( ExpandConstant('{tmp}\HelpDocSetup.exe'), '{#HelpDocSetupURL}', 'My_Setup', 'Get', 0, 0 )
[Code]
program Setup;
#define DwinsHs_Use_Predefined_Downloading_WizardPage
#define DwinsHs_Data_Buffer_Length 8192
#include "dwinshs.iss"
procedure InitializeWizard();
begin
DwinsHs_InitializeWizard(wpPreparing);
end;
procedure CurPageChanged(CurPageID: Integer);
begin
DwinsHs_CurPageChanged(CurPageID, nil, nil);
end;
function ShouldSkipPage(CurPageId: Integer): Boolean;
begin
Result := False;
DwinsHs_ShouldSkipPage(CurPageId, Result);
end;
function BackButtonClick(CurPageID: Integer): Boolean;
begin
Result := True;
DwinsHs_BackButtonClick(CurPageID);
end;
function NextButtonClick(CurPageID: Integer): Boolean;
begin
Result := True;
DwinsHs_NextButtonClick(CurPageID, Result);
end;
procedure CancelButtonClick(CurPageID: Integer; var Cancel, Confirm: Boolean);
begin
DwinsHs_CancelButtonClick(CurPageID, Cancel, Confirm);
end;
