SymbolExists
function SymbolExists(
ctx: SelectableRequired<TcHmi.Context<boolean>, 'success' | 'error'>,
symbol: TcHmi.Symbol | null,
): voidChecks whether a specific symbol is present.
Parameter
Name | Type | Description |
|---|---|---|
ctx | SelectableRequired<TcHmi.Context<boolean>, 'success' | 'error'> | Context object that provides context-specific data and functions. |
symbol | The symbol to be checked |
Return value
Type | Description |
|---|---|
- | - |
 | Available from version 1.12 |