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/* This file contains prototypes for the functions in callbacks.c. It is
* included by main.c so that when you create a new widget, you can tie
* its callback function to something that has been defined (otherwise the
* compiler will give you and error).
*
* If you add any functions to callbacks.c, you should put a corresponding
* function prototype in here.
*/
/* callback protos */
void quit(Widget w, void *data);
void button1(Widget w, void *data);
void button2(Widget w, void *data);
void redisplay(Widget w, int new_width, int new_height, void *data);
void button_down(Widget w, int which_button, int x,int y, void *data);
void button_up(Widget w, int which_button, int x, int y, void *data);
void keypress(Widget w, char *input, int up_or_down, void *data);
void motion(Widget w, int x, int y, void *data);
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