/warn:option
Warning level | Meaning |
---|---|
0 | Turns off emission of all warning messages. |
1 | Displays severe warning messages. |
2 | Displays level 1 warnings plus certain, less-severe warnings, such as warnings about hiding class members. |
3 | Displays level 2 warnings plus certain, less-severe warnings, such as warnings about expressions that always evaluate to true or false. |
4 | Displays all level 3 warnings plus informational warnings. This is the default warning level at the command line. |
Use /warnaserror to treat all warnings as errors.
/w is the short form of /warn.
Note The /warn option has not yet been implemented in the Visual Basic command line compiler.
Compile in.vb
and have the compiler only display level 1 warnings:
vbc /warn:1 in.vb
Visual Basic Compiler Options | /warnaserror