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Pseudovariables are terms used to display certain information in a variable window or the QuickWatch dialog box. You can enter a pseudovariable the same way you would enter a normal variable. Pseudovariables are not variables, however, and do not correspond to variable names in your program.
Suppose you are writing a native code application and want to see the number of handles allocated in your application. In the Watch window, you can enter the following pseudovariable in the Name column, then press Return to evaluate it:
In native code, you can use the pseudovariables shown in this table:
Displays the number of handles allocated in your application.
Displays the address of the current stack frame.
Displays the thread ID for the current thread.
Displays the size of the environment block.
Trying to edit the size of the environment block (in the Value column) causes the contents of the environment block to be displayed in the Output window when you press Return. It does not change the size of the environment block.
Displays the size of the command line string that launched the program.
Trying to edit the size (in the Value column) causes the command line string to be displayed in the Output window when you press Return. It does not change the size of the command line string.
Displays the contents of the register registername.
Normally, you can display register contents just by entering the register name. The only time you need to use this syntax is when the register name overloads a variable name. If the register name is the same as a variable name in the current scope, the debugger interprets the name as a variable name. That's when $registername or @registername comes in handy.
Displays the time in clock cycles.
Displays a structure with account information for the account running the application. For security reasons, the password information is not displayed.
In C# and Visual Basic, you can use the pseudovariables shown in this table:
Displays information on the last exception. If no exception has occurred, evaluating $exception displays an error message.
In Visual C# only, when the Exception Assistant is disabled, $exception is automatically added to the Locals window when an exception occurs.
Displays a structure with account information for the account running the application. For security reasons, the password information is not displayed