<QtDarwinHelpers> Proxy Page

宏文档编制

Q_FORWARD_DECLARE_CF_TYPE ( type )

Forward-declares a Core Foundation type . This includes the actual type and the ref type. For example, Q_FORWARD_DECLARE_CF_TYPE(CFString) declares __CFString and CFStringRef.

Q_FORWARD_DECLARE_MUTABLE_CF_TYPE ( type )

Forward-declares a mutable Core Foundation type . This includes the actual type and the ref type. For example, Q_FORWARD_DECLARE_MUTABLE_CF_TYPE(CFMutableString) declares __CFMutableString and CFMutableStringRef.

Q_FORWARD_DECLARE_OBJC_CLASS ( classname )

Forward-declares an Objective-C classname in a manner such that it can be compiled as either Objective-C or C++.

This is primarily intended for use in header files that may be included by both Objective-C and C++ source files.