Mathematica 9 is now available
SEARCH MATHEMATICA 8 DOCUMENTATION
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.
Mathematica > Core Language > Package Development > Messages >
Mathematica > Core Language > Tuning & Debugging > Messages >
Built-in Mathematica SymbolTutorials »|See Also »|More About »

$MessagePrePrint

$MessagePrePrint
is a global variable whose value, if set, is applied to expressions before they are included in the text of messages.
EXAMPLESCLOSE ALL
Basic Examples   (1)
Have expressions in messages print out in TraditionalForm:
Restore the default. Now the expressions are shown in StandardForm:
Have expressions in messages print out in TraditionalForm:
In[1]:=
Click for copyable input
In[2]:=
Click for copyable input
Out[2]=
Restore the default. Now the expressions are shown in StandardForm:
In[3]:=
Click for copyable input
Out[3]=
Scope   (2)
Locally define $MessagePrePrint so that expressions sent to messages are shown in a circle:
The local definition does not affect messages outside the Block:
Make a list of all expressions sent to messages during a computation:
New in 2
Ask a question about this page  |  Suggest an improvement  |  Leave a message for the team