popupMenu command works in Python but not in Mel

[likage]

I was trying to convert a popupMenu command from Python to Mel..

When using Python:

cmds.popupMenu( button=1, postMenuCommand="import lod_select; lod_menu = lod_select.make_dropdown(); lod_select.show_menu(lod_menu)")

However, when I tried converting the above command into MEL, I get an error:

# Keeps getting error output of "Invalid use of Maya object "lod_menu"
popupMenu -button 1 -postMenuCommand "import lod_select; lod_menu = lod_select.make_dropdown(); lod_select.show_menu(lod_menu)";

Any ideas?

[Robert White]

I believe the problem you're running into here, is that the popupMenu -postMenuCommand expects the command to be in mel, because you're triggering it from mel.

[likage]

I see... Any possible way that I can make it to evaluate in Python?

[Simon Payne]

Yup, as Robert says. You can cast a python command though :

-postMenuCommand = “python ‘myCommand()’”

Simon

Sent from my iPhone

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[likage]

Doesn't seems to work... Getting the same error...

On Thursday, July 26, 2018 at 1:53:11 PM UTC-7, simon payne wrote:

Yup, as Robert says. You can cast a python command though :

-postMenuCommand = “python ‘myCommand()’”

Simon

Sent from my iPhone

On 26 Jul 2018, at 21:22, Robert White <robert....@gmail.com> wrote:

I believe the problem you're running into here, is that the popupMenu -postMenuCommand expects the command to be in mel, because you're triggering it from mel.

On Thursday, July 26, 2018 at 3:01:24 PM UTC-5, likage wrote:

I was trying to convert a popupMenu command from Python to Mel..

When using Python:

cmds.popupMenu( button=1, postMenuCommand="import lod_select; lod_menu = lod_select.make_dropdown(); lod_select.show_menu(lod_menu)")

However, when I tried converting the above command into MEL, I get an error:

# Keeps getting error output of "Invalid use of Maya object "lod_menu"
popupMenu -button 1 -postMenuCommand "import lod_select; lod_menu = lod_select.make_dropdown(); lod_select.show_menu(lod_menu)";

Any ideas?

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[likage]

Adding in a bit more information.

My objective initially is to have a shelfButton to have 2 different selection menus.

1. If User clicks on the shelf button, it will shows menuA...

2. If User clicks on the shelf button while pressing "ALT" key, it will shows menuB...

My initial code, where it keeps giving off the error of unable as mentioned in my first post...

shelfButton
        -enableCommandRepeat 1
        -enable 1
        -noDefaultPopup
        -width 34
        -height 34
        -manage 1
        -visible 1;


// menuA options (only left mouse click on the shelf button)
popupMenu -button 1 -postMenuCommand "import lod_select; lod_menuA = lod_select.make_dropdownA(); lod_select.show_menu(lod_menuA)";


// menuB options (alt key + left mouse click on the shelf button)
popupMenu -button 1 -alt 1 -postMenuCommand "import lod_select; lod_menuB = lod_select.make_dropdownB(); lod_select.show_menu(lod_menuB)";

Seeing that this is not working, thought I made the shelfButton to have a default command that it will load menuA.

This seems to work to my cause, however it seems that while trying to access menuB options, I will need to select 2 time before the menuB options are presented to me.

If I click on the shelf button, it will shows a menu titled "menuitem1993", clicking on that, will it then be showing me the actual menu items of menuB,.. How can I bypass this "menuitem1993" creation?

shelfButton
        -enableCommandRepeat 1
        -enable 1
        -noDefaultPopup
        -width 34
        -height 34
        -manage 1
        -visible 1
 -sourceType "python"
 -command "import lod_select; lod_menuA = lod_select.make_dropdownA(); lod_select.show_menu(lod_menuA)";


// menuB options (alt key + left mouse click on the shelf button)
popupMenu -button 1 -alt 1;
menuItem -sourceType "python" -command "import lod_select; lod_menuB = lod_select.make_dropdownB(); lod_select.show_menu(lod_menuB)";