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You are here: Visual Basic > Advanced VB6 tutorial > Chapter 18

Displaying the Debug Window

To open the Immediate window, pull down the VB View menu and choose Immediate Window. The Immediate window will appear.

The Immediate window enables programmers to do the following three things:

  • Display messages programmatically with the Debug object

  • Query or modify data values on-the-fly

  • Test and execute VB procedures

The first two capabilities are only available when a program is in Break mode. Messages can be programmatically displayed in the Immediate window by embedding certain statements in a program. This entails use of a built-in VB object called the Debug object.

Unlike the fixed response in the other windows that can be used to monitor the state of variables and properties, the Immediate window also permits programmers to interactively inquire about these values, or even to change a value at will.

The last capability doesn’t require that a program be running in Break mode, or even that a VB program be running at all. At design time, the Immediate window can be used to test code or execute commands without actually running the application under development. If you want to find out what value a function returns, for example, you can enter and run the function in the Immediate window.


  

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