Stack trace is a collection of methods and objects that lists from the origin of the exception to the point where the nested call begins. class StackTrace{ StackTrace() { divideByzero();

In Java, a class can have zero or more blocks outside any methods that are labeled static and are surrounded by curly braces. These blocks, also known as static initializers,

The java.lang.Class provides the forName() method which allows you to load a class dynamically. The argument to this method is the fully qualified name, i.e., the complete name of a

While any Windows user could pop up the Calculator accessory to perform any type of math calculations, it would be great if you could offer him or her the capability

Here’s a simple but effective trick to ensure that the column of a ListView control is wide enough to display the entire string you’re assigning to the column title or

A little-known feature of the RichTextBox control allows you to insert an OLE object in the text being edited. However, you can do so only programmatically, by adding an element

If you have Internet Explorer 5 or later version, you can use an API call to download a file from the Internet withouth displaying any message box. The following code

When building an ActiveX control, you can set a default property or method using the Procedure Attributes dialog box, after clicking on the Advanced button. However, if your default property

‘ Clear the Run History’ Notes:’ 1) This routine requires the DeleteRegistryKey and CreateRegistryKey ‘ routines,’ you can find them in the CodeBank’ 2) The MRU list is kept available

‘ Set the path of the picture used as background of the Windows Explorer toolbar’ Note: requires the SetRegistryValue, CheckRegistryKey and CreateRegistryKey ‘ routines, you can find them in the

‘ Set whether the IE Options dialog is enabled’ Note: requires the SetRegistryValue, CheckRegistryKey and CreateRegistryKey ‘ routines, you can find them in the CodeBank’ Example:’ SetIEOptionsEnabled FalsePublic Sub SetIEOptionsEnabled(ByVal

‘ Set whether the IE context menu is enabled’ Note: requires the SetRegistryValue, CheckRegistryKey and CreateRegistryKey ‘ routines, you can find them in the CodeBank’ Example:’ SetIEContextMenuEnabled FalsePublic Sub SetIEContextMenuEnabled(ByVal

‘ Determine whether the IE Save As menu item is enabled’ Note: requires the GetRegistryValue routine, you can find it in the CodeBank’ Example:’ MsgBox “Save As menu item is

‘ Determine whether the IE Options dialog is enabled’ Note: requires the GetRegistryValue routine, you can find it in the CodeBank’ Example:’ MsgBox “Options dialog is enabled: ” & GetIEOptionsEnabledPublic

‘ Determine whether the IE context menu is enabled’ Note: requires the GetRegistryValue routine, you can find it in the CodeBank’ Example:’ MsgBox “Context menu is enabled: ” & GetIEContextMenuEnabledPublic

‘ Determine whether the IE File|New menu item is enabled’ Note: requires the GetRegistryValue routine, you can find it in the CodeBank’ Example:’ MsgBox “File|New menu item is enabled: “

‘ Set whether the IE File|New menu item is enabled’ Note: requires the SetRegistryValue, CheckRegistryKey and CreateRegistryKey ‘ routines, you can find them in the CodeBank’ Example:’ SetIEFileNewEnabled FalsePublic Sub

‘ Set whether the IE Save As menu item is enabled’ Note: requires the SetRegistryValue, CheckRegistryKey and CreateRegistryKey ‘ routines, you can find them in the CodeBank’ Example:’ SetIEsaveAsEnabled FalsePublic

The Point method returns the color value of a given pixel, but is rather slow because it has to convert its argument from twips (or whatever ScaleMode is currently active)

When you need to count how many occurrences of a given character are in a string, you might be tempted to go along the “traditional” Visual Basic way: ‘ count

You can add a professional touch to your apps by showing an animated icon when the main form is minimized. To achieve this effect, prepare an array of Image controls,

Ever needed to count how many characters of a given type are in a file? For instance, how many alphabetical characters, or digits, or spaces? You might read each line

The PSet method is much slower than it should actually be, and in most cases you will find it convenient to substitute it with direct calls to the SetPixel API

‘ Return True if the passed State initials are valid’ Example:’ MsgBox CheckUSState(“NY”)Public Function CheckUSState(ByVal State As String) As Boolean If Len(State) = 2 And InStr(“,AL,AK,AZ,AR,CA,CO,CT,DE,DC,FL,GA,HI,ID,IL,IN,I” _ & “A,KS,KY,LA,ME,MD,MA,MI,MN,MS,MO,MT,NE,NV,NH,NJ,NM,NY,NC,ND,OH,OK,OR,P” _

‘ Enable/Disable the Registry editor (RegEdit.exe)’ NOTE: this routine requires the SetRegistryValue,’ DeleteRegistryValue and CheckRegistryValue routines,’ that you can find in the CodeBank under the Windows section.” Example:’ ‘ disable