44 lines
1.0 KiB
Go
44 lines
1.0 KiB
Go
//go:build windows
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package winversion
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import (
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"fmt"
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"strconv"
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"sync"
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"golang.org/x/sys/windows/registry"
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)
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var WindowsVersionFloat = sync.OnceValue[float64](func() float64 {
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version, err := getWindowsVersion()
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if err != nil {
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panic(err)
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}
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return version
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})
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// GetWindowsVersion reads the version number of the OS from the Registry
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// See https://docs.microsoft.com/en-us/windows/desktop/sysinfo/operating-system-version
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func getWindowsVersion() (float64, error) {
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reg, err := registry.OpenKey(registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Windows NT\CurrentVersion`, registry.QUERY_VALUE)
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if err != nil {
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return 0, fmt.Errorf("couldn't open registry: %w", err)
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}
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defer reg.Close()
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windowsVersion, _, err := reg.GetStringValue("CurrentVersion")
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if err != nil {
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return 0, fmt.Errorf("couldn't open registry: %w", err)
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}
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windowsVersionFloat, err := strconv.ParseFloat(windowsVersion, 64)
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if err != nil {
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return 0, fmt.Errorf("couldn't open registry: %w", err)
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}
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return windowsVersionFloat, nil
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}
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