44 lines
1.5 KiB
Plaintext
44 lines
1.5 KiB
Plaintext
[Code]
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const EnvironmentKey = 'SYSTEM\CurrentControlSet\Control\Session Manager\Environment';
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procedure EnvAddPath(Path: string);
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var
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Paths: string;
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begin
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{ Retrieve current path (use empty string if entry not exists) }
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if not RegQueryStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths)
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then Paths := '';
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{ Skip if string already found in path }
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if Pos(';' + Uppercase(Path) + ';', ';' + Uppercase(Paths) + ';') > 0 then exit;
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{ App string to the end of the path variable }
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Paths := Paths + ';'+ Path +';'
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{ Overwrite (or create if missing) path environment variable }
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if RegWriteStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths)
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then Log(Format('The [%s] added to PATH: [%s]', [Path, Paths]))
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else Log(Format('Error while adding the [%s] to PATH: [%s]', [Path, Paths]));
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end;
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procedure EnvRemovePath(Path: string);
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var
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Paths: string;
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P: Integer;
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begin
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{ Skip if registry entry not exists }
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if not RegQueryStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths) then
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exit;
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{ Skip if string not found in path }
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P := Pos(';' + Uppercase(Path) + ';', ';' + Uppercase(Paths) + ';');
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if P = 0 then exit;
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{ Update path variable }
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Delete(Paths, P - 1, Length(Path) + 1);
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{ Overwrite path environment variable }
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if RegWriteStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths)
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then Log(Format('The [%s] removed from PATH: [%s]', [Path, Paths]))
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else Log(Format('Error while removing the [%s] from PATH: [%s]', [Path, Paths]));
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end; |