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Variable Functions (Magic xpa 2.x)

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Created ByKnowledge Migration User
Approval Process StatusPublished
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Description

Variable Functions (Magic xpa 2.x)

CaretPosGet – Returns the current caret (cursor) position in the Edit control.

DataViewToDataSource – Adds the current data view to a data source.

DataViewToDNDataTable – Generates a .NET DataTable object from the current data view.

DataViewToHTML – Creates an HTML file from the data view variables sent to it.

DataViewToText – Creates a text file from the data view variables sent to it.

DataViewToXML – Creates an XML file from the data view variables sent to it.

DataViewVars – Fetches the variables displayed on the form from where the Print Data event was raised.

DataViewVarsIndex – Returns the variables' indexes.

EditGet – Retrieves the control value in the edit mode.

EditSet – Sets the edited value of the control that invoked the last handler.

GetComponentName – Fetches the name of the current component.

GetGUID – Fetches the GUID of the application.

IsDefault – Tests if the value of a variable is equal to its default value.

ISNULL – Checks for the existence of a NULL value in a variable.

MarkedTextGet – Returns marked text.

MarkedTextSet – Replaces the marked text with a specified string.

MarkText – Marks the specified number of characters starting from a defined start position.


Var Functions

All Var functions use pointers to variables in memory. Each variable in the memory has a unique number according to the runtime tree. For example, if program A calls Program B, and in Program A there are 3 variables and in B there are 2, then Variable A in program A receives the number 1 in Runtime and variable A in program B receives the number 4. The Var functions allow you to get information about dynamic variables.

VarAttr – Returns a column’s attribute.

VarCurr – Retrieves the variable identifier.

VarCurrN – Returns the current value of a variable according to the variable’s name.

VarDbName – Queries a selected data view to retrieve the physical definition of each variable.

VarIndex – Returns the index of a variable according to the variable’s name.

VarInp – Identifies the last variable where the input has occurred.

VarMod – Variable modification check.

VarName – Provides a variable’s origin and description.

VarPic – Returns a string value that represents the picture of the selected field.

VarPrev – Retrieves the original value of a variable, based on a dynamic value representing a variable index within the Variable list.

VarSet – Sets a variable to a given value.

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