This function allocates memory for the input string argument. The application becomes responsible for the management of the memory after function completion. 

The input string does not need to be initialized in any fashion before calling this function.

LIB_EXPORT laResult laKeyPadWidget_GetKeyText(
    laKeyPadWidget* pad, 
    uint32_t row, 
    uint32_t col, 
    laString* str
);

laResult - the result of the operation