Clipboard.RawDataAvailable
From Xojo Documentation
Method
Clipboard.RawDataAvailable(DataType as String) As Boolean
New in 2005r1
Supported for all project types and targets.
New in 2005r1
Supported for all project types and targets.
Returns True if the Clipboard contains data.
Notes
The DataType parameter supports both the older MacType and newer UTIs. If the DataType parameter is exactly 4 bytes then it is treated as a MacType for backwards compatibility. Otherwise it is treated as a UTI.
On Windows you can use the a special DataType called "HTML Format" to add or fetch HTML data from the clipboard[1].
Sample Code
The following code checks the RawDataAvailable flag prior to reading the contents of the Clipboard.