public static extern void uiDrawMatrixTransformSize(uiDrawMatrix *m, double *x, double *y);
public static extern void uiDrawTransform(uiDrawContextPtr *c, uiDrawMatrix *m);
public static extern void uiDrawMatrixMultiply(uiDrawMatrix *dest, uiDrawMatrix *src);
public static extern int uiDrawMatrixInvert(uiDrawMatrix *m);
public static extern void uiDrawMatrixSkew(uiDrawMatrix *m, double x, double y, double xamount, double yamount);
public static extern void uiDrawMatrixRotate(uiDrawMatrix *m, double x, double y, double amount);
public static extern void uiDrawMatrixScale(uiDrawMatrix *m, double xCenter, double yCenter, double x, double y);
public static extern void uiDrawMatrixTranslate(uiDrawMatrix *m, double x, double y);
public static extern void uiDrawMatrixSetIdentity(uiDrawMatrix *m);