Getting datatype handle from DTA_Sync message on IDCMP_IDCMPUPDATE

[Jose]

While processing IDCMPUPDATE messages I'm checking the taglist on IAdress. Then process the DTA_Sync tag to be able to update a datatype after loading it to a window (RefreshDtObjectA()), so that the window display is updated automatically.

However let's suppose I load various user defined (through requesters) datatypes to a window. How do I know to which datatype a given DTA_Sync corresponds to ? I tried to look for DTA_Handle tag in the taglist on IAdress but it's not included ...

[Jose]

@Thomas
Hey, thanks a bunch. But I'm finding that method not very practical. GA_ID only uses 2 bytes of size meaning I can't put my datatype handle in there directly. So I'd have to wonder through the window's gadget list till I find a particular ID... Even then I'd still have to get the datatype handle from the gadget structure...
I thought about using GA_UserData but it doesn't show up in the IDCMPUPDATE message....

Of course, I could dynamically build my own list of datatypes with their IDs, I just thought there was a more practical way to do it...

Cheers
José

[Jose]

"The gadget structure *is* the datatype handle."

Aha! Good. I said that cause the datatypes handle is declared as an APTR in the docs so I thought it was supposed to be considered a black box (i.e. don't toutch and all of that...).

[Jose]

Something I want to share. Been fiddling with the the tags received in IDCMPUPDATE messages and found that for datatypes the address is in DTA_Data!!!!!
Yeah baby!!
There had to be an easier way... :-D

Cheers