hey guy's,

i'm doing some python scripting and i'm tryng to implement a button.
i put the button in my asset in the parameter tab.

but i can't seam to find out how to check if the button is pressed or not.
i found out there is a callback script for a button and if i set the scripting language to python then i can write litle bits of script.
this is cool but sinse all the variables stay local to the parameter i can't use them.
also every hou module method that has anything to do with callback is not implemented.

anyone been able to get a simple button going ?


tamis van der laan

if a button is pressed, it's parameter value should be 1, and 0 if not.

Er, except that the parameter will go back to 0 as soon as the button becomes “unpressed”. I think the best approach is to use callback scripts.

i tried this.

if hou.pwd().parm(“button”).eval() > 0:
print “Button was pressed”


but this doesn't work.

any thing related to callback is not implemented yet >_>

my bad, I was confusing button with toggle

As I mentioned, the value goes back to 0 when the button is released so the eval() will return 0. If you callback script is called, then the button was pressed.

that is strange then because what i did was use the callback script sections to force the default value to 1 when pressed then in my script i set it back to 0 at the end of the script.

One way to do this is to have a ‘status’ variable that will switch between 0 and 1 with each button press using a callback script. You could then quary the value in whatever setup you have.