GTK使用开源二维码生成库libqrencode生成二维码

libqrencode下载地址
https://fukuchi.org/works/qrencode
使用QRcode_encodeString()函数生成二维码数据

QRcode_encodeString()
QRcode* QRcode_encodeString	(	const char * 	string,
int 	version,
QRecLevel 	level,
QRencodeMode 	hint,
int 	casesensitive 
)		
Create a symbol from the string.

The library automatically parses the inpu