printf a value in a string

	char TempString[256];
	char ValueString[32];
	strcpy(TempString, "<span foreground=\"white\"  font_desc=\"");
	snprintf(ValueString, sizeof(ValueString), "%d", FONT_SIZE);		//Add value
	strcat(TempString, ValueString);
	strcat(TempString, ".0\">");

Conversion Functions

atoi – String To Int

include <stdlib.h>
	int i = atoi(some_string_value);

itoa – Int To String

itoa is not part of ANSI C!  You can use this instead:

	char s_remote_port[6];
	remote_port = 10;
	snprintf(s_remote_port, sizeof(s_remote_port), "%d", remote_port);