FREAD( ) Function Example

The following example uses FREAD( ) to display the contents of a file. If the file is empty, a message is displayed.

* TEST.TXT must exist -- you can create this file
* using Notepad.

Local gnFileHandle,nSize,cString
gnFileHandle = FOPEN("test.txt")
* Seek to end of file to determine the number of bytes in the file
nSize =  FSEEK(gnFileHandle, 0, 2)     && Move pointer to EOF
IF nSize <= 0
 * If the file is empty, display an error message
 WAIT WINDOW "This file is empty!" NOWAIT
ELSE
 * If file is not empty, the program stores its contents
 * in memory, then displays the text on the main Visual FoxPro window
 = FSEEK(ggnFileHandle, 0, 0)      && Move pointer to BOF
 cString = FREAD(gnFileHandle, nSize)
 ? cString
ENDIF
= FCLOSE(gnFileHandle)         && Close the file