Function ensureMappings

src/SFML/Window/Win32/InputImpl.cpp:551–574

Ensure the mappings are generated from/to Key and Scancode.

/// Ensure the mappings are generated from/to Key and Scancode.
void ensureMappings()
{
    static bool isMappingInitialized = false;

    if (isMappingInitialized)
        return;

    // Phase 1: Initialize mappings with default values
    keyToScancodeMapping.fill(sf::Keyboard::Scan::Unknown);
    scancodeToKeyMapping.fill(sf::Keyboard::Key::Unknown);

    // Phase 2: Translate scancode to virtual code to key names
    for (unsigned int i = 0; i < sf::Keyboard::ScancodeCount; ++i)
    {
        const auto              scan       = static_cast<sf::Keyboard::Scancode>(i);
        const UINT              virtualKey = sfScanToVirtualKey(scan);
        const sf::Keyboard::Key key        = virtualKeyToSfKey(virtualKey);
        if (key != sf::Keyboard::Key::Unknown && keyToScancodeMapping[key] == sf::Keyboard::Scan::Unknown)
            keyToScancodeMapping[key] = scan;
        scancodeToKeyMapping[scan] = key;
    }

    isMappingInitialized = true;
}

bool isValidScancode(sf::Keyboard::Scancode code)
{