_SetIcon
_SetIcon(clear, B_MINI_ICON);
_SetIcon(clear, B_LARGE_ICON);
void _SetIcon(bool clear, icon_size which);
_SetIcon(value, B_MINI_ICON);
_SetIcon(value, B_LARGE_ICON);
_SetIcon(value, -iconSize);
void _SetIcon(const char* iconData, int32 iconSize);
_SetIcon(NULL, NULL, data, size);
_SetIcon(NULL, NULL, data, size);
_SetIcon(large, mini, NULL, 0);
_SetIcon(NULL, NULL, NULL, 0, true);
_SetIcon(large, mini, data, size);
_SetIcon(&ref);
_SetIcon(NULL, NULL, data, size);
void _SetIcon(BBitmap* large, BBitmap* mini,
void _SetIcon(entry_ref* ref);