Looking into the FDK documentation confuses me even more.
Here a very first parameter *choice (aka selected file) is present
IntT F_ApiChooseFile(StringT *choice, StringT title, ...and the function result is the error code.
In the JSX the function result is the selected string or nul or ... - but how to distinguish?
you have to write the word "null" :
if (inputFile == null)
then it should work
What is this null? A constant? The editor knows it as a keyword - but what is the nature of this?
Step by step my project evolves - it seems to be at 2/3 of the coding now.
Again, thank You very much, Klaus