[Roko_foko]

Код:

if(VariableOne == VariableTwo)

checks if the VariableOne equals VariableTwo.
Notice that this isn't good:

Код:

if(VariableOne = VariableTwo)

Код:

VariableOne = VariableTwo;

changes VariableOne's value to VariableTwo's value.

Why checking if it equals null(==0)? Check how strcmp works.

"if (strcmp(cmdtext, "/msgall", true))" I guess you think

Код:

if (!strcmp(cmdtext, "/msgall", true))

If so, it's the alternative way of doing the first tihing.