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The scope of a variable is finding out by where you declare it. While you declare a variable in a procedure, only code in that procedure can access or alter the value of that variable. It contain local scope and is called a procedure-level variable. If you declare a variable outside a process, you make it visible to all the process in your script. It is script-level variable, and it contain script-level scope.
How long a variable exists describe its lifetime. The lifetime of script-level variable extends from the time this is declared till the time the script is finished running. At process level, a variable exists only as long as you are in the process. While the procedure exits, the variable is destroyed. Local variables are ideal like temporary storage space while a process is executing. You can have local variables of the similar name in many different procedures because each is identified only by the process in which it is declared.
Illustration of GDI object CPen: 1. Generate a SDI application. And name it as gdipen. 2. Press ctrl (control key) and W altogether to invoke the class wizard. 3. Choose
John''s gas supply is read from a 4-digit meter each month that shows the current total gas used in cubic meters. The amount of gas used that month is determined by subtracting t
MESSAGES The Windows-based applications do not make explicit function calls to acquire input. They wait for the system to pass the input to them. The system passes input to the
DDX - Dialog Data Exchange: The Data members can be related with specific controls in the dialog box. When the dialog box is displayed, the DDX will transfer the values into t
Earlier versions of VBScript had no mechanism for making user-defined constants. Constants, if utilized, were implemented as variables & distinguished from other variables by using
I am a beginner in Visual basic 2012 and making a data management programme with visual basic 2012 as front end and MySql as back end. I want to filter data grid view table with Li
If Then Else: The control statement If Then Else is used for computing a condition and taking the action based on the condition. If the condition is true then the section will
#questiontypes of lines and how to draw
A constant is a meaningful name which takes the place of a number or string and never alters. VBScript described a number of intrinsic constants. You can get thorough information r
DIALOG The dialog is a window which contains controls. The Dialog boxes are the form of input and output. The control can be placed on the dialog box for communicating. If y
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