ex_delete_data_file.nxc

This is an example of how to use the DeleteFile, TextOut, FormatNum, and Wait functions.It is useful for deleting the circles.dat file created by the program described in the ex_file_system.nxc example.

// ex_delete_data_file.nxc
// Demonstates the use of the DeleteFile API call.
// Useful for deleting the circles.dat file created by the program described 
// in the ex_file_system.nxc example.

#define FILE_NAME "circles.dat"

// Display a return code from a file sytem API call on the NXT screen.
// The codes most likely to be displayed are are: 
//    LDR_SUCCESS        0x0000
//    LDR_FILENOTFOUND   0x8700
// See "Loader module error codes" to interpret any other code that appears.
void rtn_code_out(const unsigned int code)
{
   TextOut(0, LCD_LINE1, "code            ");
   TextOut(50, LCD_LINE1, FormatNum("%04x", code));
}

task main()
{
   unsigned int rtn_code = DeleteFile(FILE_NAME);
   rtn_code_out(rtn_code);
   Wait(SEC_5);
}