topic Re: Update a string with procedure - Issue in Maya Forum

Update a string with procedure - Issue

t.pansiot — Wed, 02 Feb 2022 22:04:40 GMT

Hi,

Here is my issue, I want to create a tool to change a string Value:

Theoric Example: Variable called "Name One"

Click on the tool to update Variable in "Name Two"

MEL Script:

string $Target = "NAME_ONE";

string $window = `window -title "Long Name"
-iconName "Short Name"
-widthHeight 200 55`;
columnLayout -adjustableColumn true;
button -label "Change Name" -command "NewName($Target)";
button -label "Close" -command ("deleteUI -window " + $window);
setParent ..;
showWindow $window;

proc NewName(string $Target){
$Target = "NAME_TWO";
print $Target;
}

print $Target;

During the procedure, it seems to work, nut as soon as I print $Target again, it remains, "Object_One"

Anyone would know a trick?

Re: Update a string with procedure - Issue

mspeer — Wed, 02 Feb 2022 23:03:40 GMT

Hi!

Try something like this:

global proc string NewName(string $name){ $name = "NAME_TWO"; return $name; } NewName("whatever"); print `NewName("whatever")`; print (NewName("whatever"));

Re: Update a string with procedure - Issue

t.pansiot — Wed, 02 Feb 2022 23:08:35 GMT

Here is the solutions: string should be "global string" and it should be called inside the proc like this:

global string $Target = "NAME_ONE";

string $window = `window -title "Long Name"
-iconName "Short Name"
-widthHeight 200 55`;
columnLayout -adjustableColumn true;
button -label "Change Name" -command "NewName()";
button -label "Close" -command ("deleteUI -window " + $window);
setParent ..;
showWindow $window;

global proc NewName(){
global string $Target ;
$Target = "NAME_TWO";
print $Target;
}

print $Target;

Re: Update a string with procedure - Issue

t.pansiot — Wed, 02 Feb 2022 23:09:17 GMT

Thanks a lot Mspeer, I found a solution bellow

Re: Update a string with procedure - Issue

mspeer — Thu, 03 Feb 2022 00:40:06 GMT

Hi!

Yes I tested this too and it did not work, but I guess this was, because I had already declared the variable based on your example code and would have needed to close and reopen Maya.