Interface WindowProcI

  • All Superinterfaces:
    CallbackI, CallbackI.P, Pointer
    All Known Implementing Classes:
    WindowProc
    Functional Interface:
    This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

    @FunctionalInterface
    public interface WindowProcI
    extends CallbackI.P
    An application-defined function that processes messages sent to a window.

    Type

    
     LRESULT (*) (
         HWND hwnd,
         UINT uMsg,
         WPARAM wParam,
         LPARAM lParam
     )
    • Field Detail

      • SIGNATURE

        static final java.lang.String SIGNATURE
    • Method Detail

      • getSignature

        default java.lang.String getSignature()
        Description copied from interface: CallbackI
        Returns the dyncall signature for this callback function. [INTERNAL API]
        Specified by:
        getSignature in interface CallbackI
        Returns:
        the dyncall signature
      • callback

        default long callback​(long args)
        Description copied from interface: CallbackI.P
        Will be called by native code.
        Specified by:
        callback in interface CallbackI.P
        Parameters:
        args - pointer to a DCArgs iterator
        Returns:
        the value to store to the result DCValue
      • invoke

        long invoke​(long hwnd,
                    int uMsg,
                    long wParam,
                    long lParam)
        Will be called for each message sent to the window.
        Parameters:
        hwnd - a handle to the window procedure that received the message
        uMsg - the message
        wParam - additional message information. The content of this parameter depends on the value of the uMsg parameter.
        lParam - additional message information. The content of this parameter depends on the value of the uMsg parameter.