INTEGER_TO_HEX Function
Converts an integer to a string containing the hexadecimal representation.
note | The hexadecimal output is in Little Endian format, suitable for creating tags in image files (e.g., DCOM, TIFF, JPEG, and so forth). |
Usage
result = INTEGER_TO_HEX(value)
Input Parameters
value—A scalar integer (BYTE, INT, INT32, LONG) to convert.
Returned Value
result—A string containing the hexadecimal representation. The length of the string depends on the input integer type.
Keywords
None.
Discussion
For input integers, which are BYTE, INT, INT32, and LONG data types, the number of hexadecimal digits in the returned string is 2, 4, 8, and 8 (in 32-bit PV-WAVE) or 16 (in 64-bit PV-WAVE), respectively. For example, if the number of hexadecimal digits converted from a positive INT is less than 4, PV-WAVE prepends a '0' to the hexadecimal digits. If the input is a negative INT, PV-WAVE prepends an 'F'.
Example
Input integers in the example are BYTE, INT, INT32, and LONG.
x = 56B
PRINT, INTEGER_TO_HEX(x)," ", INTEGER_TO_HEX(-x)
; PV-WAVE prints: 38 C8
x = 2^15 - 1
PRINT, INTEGER_TO_HEX(x)," ", INTEGER_TO_HEX(-x)
; PV-WAVE prints: 7FFF 8001
x = 2i^15 - 1
PRINT, INTEGER_TO_HEX(x)," ", INTEGER_TO_HEX(-x)
; PV-WAVE prints: 00007FFF FFFF8001
x = 2L^15 - 1
PRINT, INTEGER_TO_HEX(x)," ", INTEGER_TO_HEX(-x)
; PV-WAVE prints: 00007FFF FFFF8001 in 32-bit PV-WAVE
; PV-WAVE prints: 0000000000007FFF FFFFFFFFFFFF8001 in 64-bit PV-WAVE
See Also
