org.lwjgl.nanovg.UIHandlerI Maven / Gradle / Ivy

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/*
 * Copyright LWJGL. All rights reserved.
 * License terms: https://www.lwjgl.org/license
 * MACHINE GENERATED FILE, DO NOT EDIT
 */
package org.lwjgl.nanovg;

import org.lwjgl.system.*;
import org.lwjgl.system.libffi.*;

import static org.lwjgl.system.APIUtil.*;
import static org.lwjgl.system.MemoryUtil.*;
import static org.lwjgl.system.libffi.LibFFI.*;

/**
 * Instances of this interface may be passed to the {@link OUI#uiSetHandler SetHandler} method.
 * 
 * Type
 * 
 * 
 * void (*{@link #invoke}) (
 *     int item,
 *     UIevent event
 * )
 */
@FunctionalInterface
@NativeType("UIhandler")
public interface UIHandlerI extends CallbackI {

    FFICIF CIF = apiCreateCIF(
        FFI_DEFAULT_ABI,
        ffi_type_void,
        ffi_type_sint32, ffi_type_uint32
    );

    @Override
    default FFICIF getCallInterface() { return CIF; }

    @Override
    default void callback(long ret, long args) {
        invoke(
            memGetInt(memGetAddress(args)),
            memGetInt(memGetAddress(args + POINTER_SIZE))
        );
    }

    /** handler callback; event is one of UI_EVENT_* */
    void invoke(int item, @NativeType("UIevent") int event);

}