You can obtain the free space details of each drive by executing this stored procedure: Master..xp_fixeddrivesdrive MB free—– ———–C 1317D 7194E 3930(3 row(s) affected) Related Posts Alter the Background of

Sometimes, you need to exit a nested loop early, and the break; statement will only let you exit one level of a loop. Use a flag to indicate if the

The Robot class in Java provides a special method to capture your screen. This method creates an image containing pixels read from the screen and returns a BufferedImage class object.

To Sort a String in alphabetical order instead of ASCII order (i.e A,a,B,b not A….Z,a….z), use the Collator class from the Java.text package.Here Related Posts Find and Activate External WindowsHANA

It’s not too much trouble to read a few arguments from the command line. It really becomes a problem if you have to read 50 or more arguments. One solution

Whenever you read a database field, concatenate an empty string to the field value before assigning it to a variable or control property. This prevents the program from giving an

By default, VB passes all arguments to a procedure by reference, which means the procedure can change the values of the variables you pass. However, there Related Posts How to

You can display a logo in the middle of your MDI form. The logo stays in the middle even when the MDI form is resized. After creating your own MDI

The best way to work with the tab control is to set up a different frame for each tab. If you set the frames to be indexed, you can quickly

You see trailing ellipses (…) when VB truncates either the expression or data portion of a data tip (the mouse-hover watch value you get while debugging). This is great if

If you want the user to be able to select from a fixed range of numeric values, you have a number of choices. In VB6, you can use the UpDown

In graphical applications, you often need to know the angle between two lines. You can move their intersection point to the origin easily, so all you need to do is

An MDI child form is a regular form whose MdiParent property points to its MDI container form, so the code that creates and displays a child window is very simple:

The new Break and BarBreak properties of the MenuItem object let you create menus with multiple columns. All you have to do is set either property to True for the

Copying a piece of information into the clipboard is as easy as calling the Clipboard.SetDataObject: you can pass this method a string, an image, and so on. If you pass

Numeric values and pointers are implicitly converted to a Boolean value in conditional expressions. For example: void *p = get_ptr();if(p){ // process p} A zero value evaluates as false. All

In the early days of C, pointers were plain integers. Relics of this approach can still be found in vintage APIs and legacy code. For instance, the ANSI C header

The system() function (declared in ) launches another program from the current program. As opposed to what most users think, it doesn’t return the exit code of the launched process.

“getter” member functions usually return a result by value. However, when the returned value is a large object, a string for example, returning it by value can be very inefficient.

Exceptions report abnormal runtime situations. Although you have other mechanisms for detecting and reporting runtime errors, exceptions are advantageous because they automate the process of passing the error from a

The volatile specifier disables various optimizations that a compiler might automatically apply and thus introduce bugs. I Related Posts Telecom Battle Ignites Over Stolen 5G SpectrumDocker Update Adds Orchestration CapabilitiesEpic

The SetCreationTime, SetLastWriteTime, and SetLastAccessTime methods of the System.IO.Directory class let you modify the date attributes of a file or directory: ‘ Change the access date- and time of all

To ensure that only a single thread accesses a data member of an object, declare that member private. Next, add the necessary synchronization operations (e.g., a call to EnterCriticalSection()) in

The Standard Library defines a function called std::unexpected() which is invoked when a function throws an exception not listed in its exception specification. std::unexpected invokes a user-defined function that was

set_unexpected() takes a pointer to a user-defined function of the following type: typedef void (*handler)(); Use set_unexpected() to register a user-defined routine that will be invoked when a function throws

If you Related Posts You Should Use Low-Code Platforms for AppsFind the Max Value Using PythonWhite House report supports open AILimiting the Amount of Characters Output in a Column Using

Unlike ordinary classes and functions, which you declare in a header file and define in a separate .cpp file, a template Related Posts Accelerate Multi-dimensional Analytics on Hadoop with KylinSupport

The standard textbox has a MaxChars property that lets you limit the number of characters a user can type into it. The drop-down combo does not, but you can emulate