key press event为什么不响应下方向键
gboolean on_key_press_event(GtkWidget* widget, GdkEventKey * key)
{
printf( "OKPE:key->keyval=%x\n", key->keyval );
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key value和gdkkeysyms.h里的不一样:
#define GDK_Left 0xff51
#define GDK_Up 0xff52
#define GDK_Right 0xff53
#define GDK_Down 0xff54