OutbufferCount

Sets or Retrieves the number of bytes in the Output (Transmit) buffers.

Not available at design time.

MSComm32 and Comm32 have similar but not identical behavior (See remarks below)

Syntax value = object.OutbufferCount         object Name of the communications control.   value A numerical expression indicating the number of bytes in the transmit buffer.         Examples       Text1.Text = object.OutbufferCount '// Retrieves the number of bytes in '// the transmit buffer.             object.OutbufferCount = 0 '// Delete all data from the transmit '// buffer

Remarks:

This property is primarily a "Read" property allowing you to retrieve the number of bytes in the transmit buffer. The only value that can be written to this property is 0 (zero) which can be used to delete all data from the buffer.

MSComm32
MSComm linits all buffers sizes to 32k so this property can not return a value larger than 32k

Comm32
Return vale can beup to Long Integer

Important: If removing MSComm32 from an existing project and replacing it with Comm32 remember that MSComm32 limited this property to a 32k “Short” Integer value. If using larger buffers you will of course remember to use variables of a larger data type to receive/process return values etc.