argumenttype INT <> FLOAT

[Fred Tomke]

Hello, I tried several ways to get OLEColor values:

This is the way it worked in ObjectDCL:

Code Select Expand

Befehl: (odcl_getcolorvalue 118 37 147)
9643382

When calling this expression OpenDCL produces an ARX exception

Code Select Expand

Befehl: (dcl_getolecolorvalue 118 37 147)
nil

When I put this into a list, I get an error because of wrong argument type

Code Select Expand

Befehl: (dcl_getolecolorvalue (list 118 37 147))
; Fehler: Fehler bei ADS-Anforderung

Knowing that AutoCAD tries to interpret the first integer of a list as a groupcode I tried to give it as a float

Code Select Expand

Befehl: (dcl_getolecolorvalue (list 118.0 37 147))
9643382

1. Is it really not possible to force AutoCAD not to try interpreting the first list item as a group code? Because may are many cases when lists of integers can be passed as an argument.
2. I may be wrong but: Shouldn't this also work?

Code (autolisp) Select Expand

(dcl_getolecolorvalue 118 37 147)

Fred

[owenwengerd]

I've fixed the exception, and I also added code to correctly interpret colors that have 110 - 118 red values. In my tests, all three of your approaches now work without error.

[Fred Tomke]

Thanks Owen, where do you know from that only the red values between 110 and 118 produces errors? I remember an error of Calendar control when passing 2010 instead of 2010.0 as year value. Of course 2010 is not a valid red value for GetOLEColorValue but my question is more general. I mean, maybe there are other functions that will accept lists of integers (I do just not know by now) and may fail, too.

[owenwengerd]

The only way to know for sure which values fail is to try them. One could guess based on the DXF code documentation, but the only way to be sure is to see if AutoCAD interprets the 3-integer list as a DXF value.