You can look for: Currently not supported in QB64. And it will be removed when the statement is supported. I will also be adding a page of keywords not supported.
Wouldn't it be easier to simply have three sections?
- QB64
- QBasic keywords/functions (this is more accurate than calling them all keywords)
- Unimplemented QBasic functions/statements
Perhaps subsections could be beneficial too. Most of the keywords are parts of built-in statements like the NEXT, STEP and TO keywords of a FOR...NEXT loop statement. The real nuance is the fact that statements are made up of keywords in the same way that sentences in spoken languages are made up of words. In other words, separate functions from statements. The alphabetic listing could still show things just as it does right now (possibly using the three sections mentioned earlier). Another listing could be used to separate keywords/statements from functions.
It's just a suggestion, and I only see it really being useful for syntax highlighters. After all, a built-in function such as ABS could be recognised by a syntax highlighter, but a user-defined function isn't necessarily recognised because it takes too much work to keep track of all user-defined functions and colouring them when they're called. And a function isn't nearly the same as a statement since functions return values that statements can use.
Again, it's merely a suggestion. It's not impossible, but the benefit might be far too small to perform such work.
Anyway, that's off-topic. OPEN COM can't be used in QB64 yet, if it will be implemented at all in the future.