[Maya][UI] Is there a way to query a control's command?

Coding
1

the docs list all commands (command/changeCommand/etc) as valid on creation and edit, but not query. And sure enough they return None when queried.

Could I get it after casting it to a QT widget?

Anyone been down this path?

2

So I can’t find a way to query signal->slot connections, but I can at least add additional connections.

def stateChanged(*args):
    print args
    
qtObj = toQtObject('window|columnLayout370|checkBox65')
qtObj.stateChanged.connect(stateChanged)

toQtObject is from nathan horne (http://nathanhorne.com/?p=451)

Is this the best I can get?

3

pymel has the getCommand() method on many of it’s UI elements, with a little testing, i was able to use that to return the same function object that was set in the UI elements command arg.

pymel.core.uitypes.Button.getCommand()


import pymel.core as pm


class UI(object):
    def __init__(self):
        if pm.window('testWin', exists=True):
            pm.deleteUI('testWin')

        with pm.window('testWin') as window:
            with pm.columnLayout():
               btn = pm.button(l='egweg', c=self.cmd)

        window.show()

        newFun = btn.getCommand()
        newFun()

    def cmd(self, *args):
        print 'cmd fired'

UI()
4

Interesting. It looks like there a few UI controls that allow querying the command. The checkBox doesn’t allow that unfortunately.

According to a pymel search for getCommand, they are:

Button
CommandMenuItem
IconTextButton
MenuEditor
NodeIconButton
ShelfButton
SymbolButton
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