Error handling

Error handling

WUI does not use exceptions. Methods that may terminate with an error return a bool. To get details about the problem, the get_error() method returns the structure

struct error
{
    error_type type;
    std::string component, message;
    bool is_ok() const;
};

Errors that may have occurred in the object constructor should be checked like this:

newObject(new wui::image(IMG_LOGO)).....

if (!newObject->get_error().is_ok()) { log("error", newObject->get_error().str()); }