It's apparently ASSETDATA_FLAG_NOMISSING
.
ASSETDATA_FLAG_0 0
ASSETDATA_FLAG_CURRENTFRAMEONLY 1
ASSETDATA_FLAG_CURRENTTAKEONLY 8
ASSETDATA_FLAG_MULTIPLEUSE 64
ASSETDATA_FLAG_NET 4
ASSETDATA_FLAG_NODOCUMENT 256
ASSETDATA_FLAG_NOMISSING 128
ASSETDATA_FLAG_NONE 0
ASSETDATA_FLAG_NOSUBSTANCES 32
ASSETDATA_FLAG_TEXTURESONLY 2
ASSETDATA_FLAG_WITHCACHES 16
If you want to list all values pertaining to a certain group of constants, you can modify this script:
import c4d
def main():
for attr in dir(c4d):
if "ASSETDATA" in attr:
val = eval('c4d.' + attr)
print (attr, val)
if __name__=='__main__':
main()
Learn more about Python for C4D scripting:
https://www.patreon.com/cairyn