obs-websocket/installer/installer-windows.iss.in

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#define MyAppName "obs-websocket"
#define MyAppVersion "@CMAKE_PROJECT_VERSION@"
#define MyAppPublisher "Stephane Lepin"
#define MyAppURL "http://github.com/Palakis/obs-websocket"
[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={117EE44F-48E1-49E5-A381-CC8D9195CF35}
AppName={#MyAppName}
AppVersion={#MyAppVersion}
AppPublisher={#MyAppPublisher}
AppPublisherURL={#MyAppURL}
AppSupportURL={#MyAppURL}
AppUpdatesURL={#MyAppURL}
DefaultDirName={code:GetDirName}
DefaultGroupName={#MyAppName}
OutputBaseFilename=obs-websocket-{#MyAppVersion}-Windows-Installer
Compression=lzma
SolidCompression=yes
DirExistsWarning=no
[Languages]
Name: "english"; MessagesFile: "compiler:Default.isl"
[Files]
Source: "..\release\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs
Source: "..\LICENSE"; Flags: dontcopy
; NOTE: Don't use "Flags: ignoreversion" on any shared system files
[Icons]
Name: "{group}\{cm:ProgramOnTheWeb,{#MyAppName}}"; Filename: "{#MyAppURL}"
Name: "{group}\{cm:UninstallProgram,{#MyAppName}}"; Filename: "{uninstallexe}"
[Code]
procedure InitializeWizard();
var
GPLText: AnsiString;
Page: TOutputMsgMemoWizardPage;
begin
ExtractTemporaryFile('LICENSE');
LoadStringFromFile(ExpandConstant('{tmp}\LICENSE'), GPLText);
Page := CreateOutputMsgMemoPage(wpWelcome,
'License Information', 'Please review the license terms before installing obs-websocket',
'Press Page Down to see the rest of the agreement. Once you are aware of your rights, click Next to continue.',
String(GPLText)
);
end;
// credit where it's due :
// following function come from https://github.com/Xaymar/obs-studio_amf-encoder-plugin/blob/master/%23Resources/Installer.in.iss#L45
function GetDirName(Value: string): string;
var
InstallPath: string;
begin
// initialize default path, which will be returned when the following registry
// key queries fail due to missing keys or for some different reason
Result := '{pf}\obs-studio';
// query the first registry value; if this succeeds, return the obtained value
if RegQueryStringValue(HKLM32, 'SOFTWARE\OBS Studio', '', InstallPath) then
Result := InstallPath
end;