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Serial Controller Driver Reference

Overview of the Serial Controller Driver Reference technology.

To develop Serial Controller Driver Reference, you need these headers:

For programming guidance for this technology, see:

Functions

 
ComDBClaimNextFreePort

ComDBClaimNextFreePort returns the lowest COM port number that is not already in use.
ComDBClaimPort

ComDBClaimPort logs an unused COM port number as "in use" in the COM port database.
ComDBClose

ComDBClose closes a handle to the COM port database.
ComDBGetCurrentPortUsage

ComDBGetCurrentPortUsage returns information about the COM port numbers that are currently logged as "in use" in the COM port database.
ComDBOpen

ComDBOpen returns a handle to the COM port database.
ComDBReleasePort

ComDBReleasePort releases a COM port number in the COM port database.
ComDBResizeDatabase

ComDBResizeDatabase resizes the COM port database.
SerialDisplayAdvancedSettings

SerialDisplayAdvancedSettings displays the system-supplied advanced settings dialog box for a specified COM port device.