SteamlessController/resources/InnoInstallerScript.iss

; Script generated by the Inno Setup Script Wizard.
; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
; Non-commercial use only

#define MyAppName "SteamlessController"
#define MyAppVersion "1.18"
#define ViGEmSetup "ViGEmBus_1.22.0_x64_x86_arm64.exe"
#define MyAppPublisher "Dylan Deverill"
#define MyAppURL "https://github.com/ddeverill/SteamlessController"
#define MyAppExeName "SteamlessController.exe"

[Setup]
; NOTE: The value of AppId uniquely identifies this application. Do not use the same AppId value in installers for other applications.
; (To generate a new GUID, click Tools | Generate GUID inside the IDE.)
AppId={{4E6FF864-969A-44C6-B4AC-848F22D5EF57}
AppName={#MyAppName}
AppVersion={#MyAppVersion}
;AppVerName={#MyAppName} {#MyAppVersion}
AppPublisher={#MyAppPublisher}
AppPublisherURL={#MyAppURL}
AppSupportURL={#MyAppURL}
AppUpdatesURL={#MyAppURL}
DefaultDirName={autopf}\{#MyAppName}
UninstallDisplayIcon={app}\{#MyAppExeName}
SourceDir=..
; "ArchitecturesAllowed=x64compatible" specifies that Setup cannot run
; on anything but x64 and Windows 11 on Arm.
ArchitecturesAllowed=x64compatible
; "ArchitecturesInstallIn64BitMode=x64compatible" requests that the
; install be done in "64-bit mode" on x64 or Windows 11 on Arm,
; meaning it should use the native 64-bit Program Files directory and
; the 64-bit view of the registry.
ArchitecturesInstallIn64BitMode=x64compatible
DisableProgramGroupPage=yes
; Uncomment the following line to run in non administrative install mode (install for current user only).
;PrivilegesRequired=lowest
OutputBaseFilename=SteamlessController-Setup
SetupIconFile=resources\SteamControllerON.ico
SolidCompression=yes
WizardStyle=modern

[Languages]
Name: "english"; MessagesFile: "compiler:Default.isl"

[Tasks]
Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked

[Files]
Source: "build\release\Release\{#MyAppExeName}"; DestDir: "{app}"; Flags: ignoreversion
Source: "build\release\Release\SteamlessDeviceCycle.exe"; DestDir: "{app}"; Flags: ignoreversion
; Setup's driver check, and the thing to ask a user to run when a controller
; never reaches a game. Installed rather than temporary for the second reason.
Source: "build\release\Release\ViGEmBusProbe.exe"; DestDir: "{app}"; Flags: ignoreversion
Source: "resources\{#ViGEmSetup}"; DestDir: "{tmp}"; Flags: deleteafterinstall

[Icons]
Name: "{autoprograms}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"
Name: "{autodesktop}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: desktopicon

[Run]
; ViGEmBus uses MSI-style silent switches; /install is rejected by the 1.22.0 bootstrapper.
Filename: "{tmp}\{#ViGEmSetup}"; Parameters: "/qn /norestart"; StatusMsg: "Installing ViGEmBus driver..."; Flags: waituntilterminated
; Register the elevated on-demand device-cycle task while the installer is
; already elevated, so users never see a UAC prompt from the app itself.
Filename: "{app}\SteamlessDeviceCycle.exe"; Parameters: "--register"; StatusMsg: "Registering controller helper task..."; Flags: waituntilterminated runhidden
Filename: "{app}\{#MyAppExeName}"; Description: "{cm:LaunchProgram,{#StringChange(MyAppName, '&', '&&')}}"; Flags: nowait postinstall skipifsilent

[UninstallRun]
Filename: "{app}\SteamlessDeviceCycle.exe"; Parameters: "--unregister"; RunOnceId: "RemoveCycleTask"; Flags: waituntilterminated runhidden

[Code]
// Did ViGEmBus actually install? Established the way the app establishes it at
// runtime — by enumerating the ViGEm bus interface — because every cheaper
// answer has been measured and found to lie:
//
//   * the bundle exits 0 when it finds a related product already registered
//     and decides there is nothing for it to do
//   * the registry records the product whether or not a driver ever landed
//   * the driver's own version is no guide either: 1.22.0 ships a binary still
//     stamped 1.21.442.0
//
// Reported in #68: with another program's rebranded ViGEm already present,
// setup looked entirely successful and left the machine with no working bus.
// The user found out when they clicked Enable Steamless Mode.
function ViGEmBusPresent(): Boolean;
var
  ResultCode: Integer;
begin
  // Assume the best when the check itself cannot run. A missing or broken
  // probe is our bug, and telling every user their driver failed on account of
  // it would be worse than saying nothing at all.
  Result := True;
  if not Exec(ExpandConstant('{app}\ViGEmBusProbe.exe'), '', '',
              SW_HIDE, ewWaitUntilTerminated, ResultCode) then
  begin
    Log('ViGEmBus verification: probe could not be run');
    Exit;
  end;
  Log('ViGEmBus verification: probe exit code ' + IntToStr(ResultCode));
  Result := ResultCode = 0;
end;

procedure CurStepChanged(CurStep: TSetupStep);
var
  WarningText: String;
begin
  // ssPostInstall runs after the [Run] entries above, so the driver installer
  // has finished by the time this fires. Worth stating because it is
  // load-bearing: were that ordering ever wrong, every healthy install would
  // warn. That is a loud failure rather than a quiet one, which is why the
  // check sits here rather than behind a wrapper built to guarantee ordering.
  if CurStep <> ssPostInstall then
    Exit;
  if ViGEmBusPresent() then
    Exit;

  WarningText :=
    'SteamlessController is installed, but the ViGEmBus driver is not.' + #13#10 + #13#10 +
    'That driver is what presents your controller to games. Setup ran its ' +
    'installer, but no virtual gamepad bus is present afterwards. Usually this ' +
    'means another program has already registered a version of it — Oculus and ' +
    'Virtual Desktop both ship their own copy — which stops the bundled ' +
    'installer from doing anything.' + #13#10 + #13#10 +
    'To finish:' + #13#10 + #13#10 +
    '    1. Download ViGEmBus from' + #13#10 +
    '        https://github.com/nefarius/ViGEmBus/releases/latest' + #13#10 +
    '    2. Run it, choosing Repair if it offers that rather than a fresh install' + #13#10 +
    '    3. Start SteamlessController — it picks the driver up on its own,' + #13#10 +
    '        with no reinstall and no restart needed' + #13#10 + #13#10 +
    'To check again later, run ViGEmBusProbe.exe from the installation folder.';

  // An unattended install must not stop on a dialog nobody is there to close.
  // The Inno log carries the same finding either way, and so will the app's
  // event log the first time somebody enables Steamless Mode.
  if WizardSilent() then
    Log('ViGEmBus verification: no bus present after install (silent, not shown)')
  else
    MsgBox(WarningText, mbInformation, MB_OK);
end;