SetDescription
void SetDescription(const BString& description);
void SetDescription(const char* format, ...);
localizedText->SetDescription(fDescription);
void SetDescription(const BString& value);
void SetDescription(const BString description)
void SetDescription(const char* text);
button->SetDescription(name);
button->SetDescription(text);
void SetDescription(const char* description)
packageInfo.SetDescription(description.String());
void SetDescription(const char* text);
SetDescription("Retrieving stack trace for thread %" B_PRId32, fThread->ID());
SetDescription("Loading debugging information for %s",
SetDescription("Loading source code for function %s",
fPackageInfo.SetDescription(value.string);
fPackageInfo.SetDescription(value.string);