问题描述
在我的Inno Setup项目中,我从服务器下载了所有文件,还下载了具有版本号的文件。现在,我想从文件中读取版本,并将其分配给[Setup]
部分中的AppVersion
部分Code
。我的问题是可以在Code
部分中设置应用版本吗?
解决方法
结合这两个问题:
- How to set version number from Inno Setup Pascal Script
- Inno Setup - HTTP request - Get www/web content
[Setup]
AppVersion={code:GetAppVersion}
[Code]
var
Version: string;
function GetAppVersion(Param: string): string;
var
WinHttpReq: Variant;
begin
if Version = '' then
begin
WinHttpReq := CreateOleObject('WinHttp.WinHttpRequest.5.1');
WinHttpReq.Open('GET','https://www.example.com/version.txt',False);
WinHttpReq.Send('');
if WinHttpReq.Status <> 200 then
begin
Log('HTTP Error: ' + IntToStr(WinHttpReq.Status) + ' ' + WinHttpReq.StatusText);
MsgBox('Cannot obtain version',mbError,MB_OK);
Abort();
end
else
begin
Version := Trim(WinHttpReq.ResponseText);
Log('Version: ' + Version);
// you may want to validate that the value is meaningful here
end;
end;
Result := Version;
end;