"?CANNOT DISPLAY" Means CodeView Is Unable to Return a Value

ID Number: Q24877

2.x 3.00 3.10 3.11 3.14 | 2.x 3.00 3.10 3.11 3.12 3.50

MS-DOS | OS/2

Summary:

The Microsoft CodeView debugger displays the following message when

the expression evaluator cannot return a value:

?CANNOT DISPLAY

This usually occurs when you evaluate a function from the command

window with the ? operator and the function returns void. In such a

case, the function is evaluated correctly; however, the ? operator is

designed to evaluate an expression, and in this particular situation

CodeView is informing you that it cannot return a value.

Additional reference words: 2.2 2.20 2.30 2.30 2.35 3.0 3.00 3.1 3.10

3.11 3.12 3.14 3.5 3.50