int GetSystemComHandle (int COMPort, int *systemHandle);
Returns the system port handle associated with a particular COM port. This handle can be used in Windows SDK functions.
Input | ||
Name | Type | Description |
COMPort | integer | A number that indicates the COM port on which to operate. This number is paired with deviceName, which represents the COM port, during the OpenComConfig function call. Default Value: 1—COM1 Valid Range: 1—1,000 |
Output | ||
Name | Type | Description |
systemHandle | int (passed by reference) | The system port handle for the particular COM port. |
Name | Type | Description |
result | integer | The result of this function call. This code is a negative value that specifies the type of error that occurred. |