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История изменений

Исправление matrixd, (текущая версия) : 

Syntax

Status XFetchName(display, w, window_name_return)
      Display *display;
      Window w;
      char **window_name_return;

Arguments
display 	Specifies the connection to the X server.
w 	Specifies the window.
window_name_return 	Returns the window name, which is a null-terminated string.

window_name_return Returns the window name, which is a null-terminated string.

а у тебя 

char **name = NULL;
...
        XFetchName(dpy,cw[i],name);
	//Xutf8TextPropertyToTextList(dpy,&text,&name,&param);
	printf("%s\n",name[i]);

Исходная версия matrixd, : 

Syntax

Status XFetchName(display, w, window_name_return)
      Display *display;
      Window w;
      char **window_name_return;

Arguments
display 	Specifies the connection to the X server.
w 	Specifies the window.
window_name_return 	Returns the window name, which is a null-terminated string.

window_name_return Returns the window name, which is a null-terminated string.

а у тебя 

        XFetchName(dpy,cw[i],name);
	//Xutf8TextPropertyToTextList(dpy,&text,&name,&param);
	printf("%s\n",name[i]);