GDI32.java

/* Copyright (c) 2007 Timothy Wall, All Rights Reserved
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * <p/>
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 */
package com.sun.jna.examples.win32;

import java.awt.Rectangle;

import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.Structure;
import com.sun.jna.examples.win32.User32.POINT;
import com.sun.jna.ptr.PointerByReference;

/** Definition (incomplete) of <code>gdi32.dll</code>. */
public interface GDI32 extends W32API {

    GDI32 INSTANCE = (GDI32)
        Native.loadLibrary("gdi32", GDI32.class, DEFAULT_OPTIONS);

    class RECT extends Structure {
        public int left;
        public int top;
        public int right;
        public int bottom;
        public Rectangle toRectangle() {
            return new Rectangle(left, top, right-left, bottom-top);
        }
        public String toString() {
            return "[(" + left + "," + top + ")(" + right + "," + bottom + ")]";
        }
    }

    int RDH_RECTANGLES = 1;
    class RGNDATAHEADER extends Structure {
        public int dwSize = size();
        public int iType = RDH_RECTANGLES; // required
        public int nCount;
        public int nRgnSize;
        public RECT rcBound;
    }
    class RGNDATA extends Structure {
        public RGNDATAHEADER rdh;
        public byte[] Buffer;
        public RGNDATA(int bufferSize) {
            Buffer = new byte[bufferSize];
            allocateMemory();
        }
    }

    public HRGN ExtCreateRegion(Pointer lpXform, int nCount, RGNDATA lpRgnData);

    int RGN_AND = 1;
    int RGN_OR = 2;
    int RGN_XOR = 3;
    int RGN_DIFF = 4;
    int RGN_COPY = 5;

    int ERROR = 0;
    int NULLREGION = 1;
    int SIMPLEREGION = 2;
    int COMPLEXREGION = 3;
    int CombineRgn(HRGN hrgnDest, HRGN hrgnSrc1, HRGN hrgnSrc2, int fnCombineMode);

    HRGN CreateRectRgn(int nLeftRect, int nTopRect,
                       int nRightRect, int nBottomRect);

    HRGN CreateRoundRectRgn(int nLeftRect, int nTopRect,
                            int nRightRect, int nBottomRect,
                            int nWidthEllipse,
                            int nHeightEllipse);
    int ALTERNATE = 1;
    int WINDING = 2;
    HRGN CreatePolyPolygonRgn(POINT[] lppt, int[] lpPolyCounts, int nCount, int fnPolyFillMode);

    boolean SetRectRgn(HRGN hrgn, int nLeftRect, int nTopRect, int nRightRect, int nBottomRect);

    int SetPixel(HDC hDC, int x, int y, int crColor);

    HDC CreateCompatibleDC(HDC hDC);
    boolean DeleteDC(HDC hDC);

    int BI_RGB = 0;
    int BI_RLE8 = 1;
    int BI_RLE4 = 2;
    int BI_BITFIELDS = 3;
    int BI_JPEG = 4;
    int BI_PNG = 5;
    class BITMAPINFOHEADER extends Structure {
        public int biSize = size();
        public int biWidth;
        public int biHeight;
        public short biPlanes;
        public short biBitCount;
        public int biCompression;
        public int biSizeImage;
        public int biXPelsPerMeter;
        public int biYPelsPerMeter;
        public int biClrUsed;
        public int biClrImportant;
    }
    class RGBQUAD extends Structure {
        public byte rgbBlue;
        public byte rgbGreen;
        public byte rgbRed;
        public byte rgbReserved = 0;
    }
    class BITMAPINFO extends Structure {
        public BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER();
        //RGBQUAD:
        //byte rgbBlue;
        //byte rgbGreen;
        //byte rgbRed;
        //byte rgbReserved = 0;
        int[] bmiColors = new int[1];
        public BITMAPINFO() { this(1); }
        public BITMAPINFO(int size) {
            bmiColors = new int[size];
            allocateMemory();
        }
    }
    int DIB_RGB_COLORS = 0;
    int DIB_PAL_COLORS = 1;
    HBITMAP CreateDIBitmap(HDC hDC, BITMAPINFOHEADER lpbmih, int fdwInit,
                           Pointer lpbInit, BITMAPINFO lpbmi, int fuUsage);
    HBITMAP CreateDIBSection(HDC hDC, BITMAPINFO pbmi, int iUsage,
                             PointerByReference ppvBits, Pointer hSection,
                             int dwOffset);
    HBITMAP CreateCompatibleBitmap(HDC hDC, int width, int height);

    HANDLE SelectObject(HDC hDC, HANDLE hGDIObj);
    boolean DeleteObject(HANDLE p);
}