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Returns or sets a numeric value indicating an error. Number is the Err object's default property. While returning user-defined error from an Automation object, set Err.Number through inserting the number you decided as an error code to the constant vbObjectError. For instance, you employ the following code to return the number 1051 as an error code:
Err.Raise Number:= vbObjectError + 1051, Source:= "SomeClass"
Syntax
Err.Description [= stringexpression]
Argument : Stringexpression
A string expression containing a description of the error.
1. Create a new solution file named Ch03HandsOnProject1. 2. Rename the form and set the filename of the form to frmMain and frmMain.vb, respectively. 3. Set the appropriate p
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
Displaying The Database: The Text box, image box, check box, labels, picture box can be bounded to the data control for exhibiting the data base contents. The two properties a
WINDOWS PROGRAMMING The Windows programming is a developing application using the C and the native Win32 application interface (API) or C++ and the class libraries like Microso
VISUAL INTERFACE DESIGN Instead of the graphic nature of the program, only the visualness of the inter action is important. The program must not focus on the GUI. On the other
Function IsPalindrome(str) Dim iStart,iEnd,ctr,blnPalin str=trim(str) blnPalin=true iEnd=len(str) iCnt=round(iEnd / 2) iStart=1 for ctr=1 to cint(iCnt) if(mid(str,iEnd,
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Check Box: The check box control takes the value as on or off or grayed. The grayed one is neither on nor off. The user can transform the setting of the grayed check box.
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
need general help in pseudo code
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