newtComponent newtTextboxReflowed(int left, int top, char * text, int width,
int flexDown, int flexUp, int flags);
newtComponent newtTextbox(int left, int top, int width, int height, int flags);
void newtTextboxSetText(newtComponent co, const char * text);
void newtTextboxSetHeight(newtComponent co, int height);
int newtTextboxGetNumLines(newtComponent co);
newtComponent newtTextboxReflowed(int left, int top, char * text, int width,
int flexDown, int flexUp, int flags);
newtComponent newtTextbox(int left, int top, int width, int height, int flags);
void newtTextboxSetText(newtComponent co, const char * text);
void newtTextboxSetHeight(newtComponent co, int height);
int newtTextboxGetNumLines(newtComponent co);