sriram
72 lines
1.6 KiB
JavaScript
72 lines
1.6 KiB
JavaScript
// Maps browser KeyboardEvent.code values to Windows virtual-key codes.
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// Reference: https://learn.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes
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const VK = {};
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// Letters (KeyA..KeyZ -> 0x41..0x5A)
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for (let i = 0; i < 26; i++) VK['Key' + String.fromCharCode(65 + i)] = 0x41 + i;
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// Top-row digits (Digit0..Digit9 -> 0x30..0x39)
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for (let i = 0; i <= 9; i++) VK['Digit' + i] = 0x30 + i;
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// Numpad digits
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for (let i = 0; i <= 9; i++) VK['Numpad' + i] = 0x60 + i;
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// Function keys
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for (let i = 1; i <= 24; i++) VK['F' + i] = 0x70 + (i - 1);
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Object.assign(VK, {
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Escape: 0x1b,
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Tab: 0x09,
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CapsLock: 0x14,
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ShiftLeft: 0xa0,
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ShiftRight: 0xa1,
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ControlLeft: 0xa2,
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ControlRight: 0xa3,
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AltLeft: 0xa4,
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AltRight: 0xa5,
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MetaLeft: 0x5b,
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MetaRight: 0x5c,
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ContextMenu: 0x5d,
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Space: 0x20,
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Enter: 0x0d,
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NumpadEnter: 0x0d,
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Backspace: 0x08,
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Delete: 0x2e,
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Insert: 0x2d,
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Home: 0x24,
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End: 0x23,
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PageUp: 0x21,
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PageDown: 0x22,
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ArrowUp: 0x26,
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ArrowDown: 0x28,
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ArrowLeft: 0x25,
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ArrowRight: 0x27,
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PrintScreen: 0x2c,
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ScrollLock: 0x91,
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Pause: 0x13,
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NumLock: 0x90,
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// OEM punctuation (US layout)
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Semicolon: 0xba,
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Equal: 0xbb,
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Comma: 0xbc,
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Minus: 0xbd,
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Period: 0xbe,
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Slash: 0xbf,
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Backquote: 0xc0,
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BracketLeft: 0xdb,
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Backslash: 0xdc,
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BracketRight: 0xdd,
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Quote: 0xde,
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// Numpad operators
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NumpadMultiply: 0x6a,
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NumpadAdd: 0x6b,
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NumpadSubtract: 0x6d,
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NumpadDecimal: 0x6e,
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NumpadDivide: 0x6f,
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});
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/** @param {string} code KeyboardEvent.code @returns {number|undefined} Windows VK code */
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function toVirtualKey(code) {
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return VK[code];
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}
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module.exports = { toVirtualKey, VK };
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