How To Convert Values to Hexadecimal Format with Xbase (155389)

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Visual FoxPro 5.0 and 6.0 help you easily convert between decimal and hexadecimal numbers. The following examples demonstrate how to gain decimal output from a hexadecimal number. Type the following lines in the Command window:

   x = 0xff
   WAIT WINDOW STR(x)
   y = 0xefff
   WAIT WINDOW STR(y)
				

The WAIT WINDOW commands report the numbers 255 and 61439. The zero and the x (0x) in front of the hexadecimal value tells Visual FoxPro to treat the proceeding values as hexadecimal values.

Additionally, the TRANSFORM() function has a new clause to handle hexadecimal conversions. The following TRANSFORM() functions demonstrate this new functionality. Type the following code in the Command window:

   ? TRANSFORM(x,"@0")
   ? TRANSFORM(y,"@0")
				

The TRANSFORM() function converts the decimal values back to hexadecimal form. The zero (0) format code directs the TRANSFORM() function to output hexadecimal numbers. The output is always an eight-digit hexadecimal value preceded by 0x.

While these new capabilities are easy to use, earlier versions of FoxPro do not have this functionality. If you need backward-compatible code that converts decimals to hexadecimal values, create a function within Visual FoxPro using the CONVERT() function.

For more information about this technique, please see the following article in the Microsoft Knowledge Base: