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PowerShell example using an enumerator type to map colour name to value with a default value set for invalid values
$colourName = 'grey'
# Only needs to be declared once
enum colour {
red = 0xFF0000
green = 0x00FF00
blue = 0x0000FF
white = 0xFFFFFF
$colourValue = [colour]::white
if (-not [colour]::TryParse($colourName, $true, [ref] $colourValue)) {
return 0x0
} else {
return $colourValue.value__
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