Is it possible to set the install mode in Inno Set

问题:

I know that the directive ArchitecturesInstallIn64BitMode=x64 ia64 can be set, so that Inno Setup will decide on the processor type and install in 64 bit if its possible.

But I need some [Code] section function to set the install mode (32 or 64).

Is it even possible?

Example:

This function will return the Java installation architecture (32 or 64):

function CheckJavaInstallation()

According to the result I want to set Inno Setup to the correct install mode -> Selection of the correct Program Files or Program files (x86) and in the correct registry (normal or WOW6432Node).

回答1:

I would suggest you to create two checker functions: IsJava32 and IsJava64. Then for every file, registry entry, etc you add the two versions with one of the checkers, example:

[Files]
Source: "SourceSetupDir32\aFile1.dll"; DestDir: "{pf32}\{#MyAppName}\"; Check: IsJava32;
Source: "SourceSetupDir64\aFile1.dll"; DestDir: "{pf64}\{#MyAppName}\"; Check: IsJava64;
;...
Source: "SourceSetupDir32\aFile4.dll"; DestDir: "{pf32}\{#MyAppName}\"; Check: IsJava32;
Source: "SourceSetupDir64\aFile4.dll"; DestDir: "{pf64}\{#MyAppName}\"; Check: IsJava64;

[Registry]
Root: HKCU32; Subkey: "Software\My Company"; Flags: uninsdeletekeyifempty; Check: IsJava32;
Root: HKCU64; Subkey: "Software\My Company"; Flags: uninsdeletekeyifempty; Check: IsJava64;

[Code]

Function IsJava32(): Boolean;
Begin
  { ... }
End;

Function IsJava64(): Boolean;
Begin
  Result := Not IsJava32;
End;

回答2:

A simpler solution can be find here. For those that are searching for an answer to this question.