Java 32位JRE中的jna指针
我使用jna在Java中调用放大api函数 magimagescallingcallback.javaJava 32位JRE中的jna指针,java,winapi,jna,magnification-api,Java,Winapi,Jna,Magnification Api,我使用jna在Java中调用放大api函数 magimagescallingcallback.java package jna.extra; import com.sun.jna.Callback; import com.sun.jna.Pointer; import com.sun.jna.platform.win32.WinDef.HRGN; import com.sun.jna.platform.win32.WinDef.HWND; import com.sun.jna.platform
package jna.extra;
import com.sun.jna.Callback;
import com.sun.jna.Pointer;
import com.sun.jna.platform.win32.WinDef.HRGN;
import com.sun.jna.platform.win32.WinDef.HWND;
import com.sun.jna.platform.win32.WinDef.RECT;
public interface MagImageScalingCallback extends Callback{
public Boolean MagImageScalingCallback(HWND hwnd, Pointer srcdata,MAGIMAGEHEADER srcheader, Pointer destdata,MAGIMAGEHEADER destheader,RECT source,RECT clipped,HRGN dirty);
}
package jna.extra;
import java.util.Arrays;
import java.util.List;
import com.sun.jna.platform.win32.Guid.GUID;
public class MAGIMAGEHEADER extends com.sun.jna.Structure {
public int width;
public int height;
public GUID format;
public int stride;
public int offset;
public int cbsize;
public List getFieldOrder() {
return Arrays.asList("width","height","format","stride","offset","cbsize");
}
}
package jna.extra;
import com.sun.jna.Native;
import com.sun.jna.platform.win32.WinDef.DWORD;
import com.sun.jna.platform.win32.WinDef.HWND;
import com.sun.jna.platform.win32.WinDef.RECT;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Magnification extends StdCallLibrary {
Magnification INSTANCE = (Magnification) Native.loadLibrary("magnification", Magnification.class,
W32APIOptions.DEFAULT_OPTIONS);
public Boolean MagInitialize();
public boolean MagSetWindowFilterList(HWND hwndMag, DWORD dword, int i,
HWND[] excludeHWNDs);
public boolean MagSetWindowSource(HWND hwndMag, RECT sourceRect);
public void MagGetWindowFilterList(HWND hwndMag, DWORD dword, int i, HWND[] test);
public boolean MagSetImageScalingCallback(HWND hwndMag,MagImageScalingCallback MagImageScalingCallback);
public MagImageScalingCallback MagGetImageScalingCallback(HWND hwndMag);
}
package jna.extra;
import com.sun.jna.platform.win32.WinDef.DWORD;
import com.sun.jna.platform.win32.WinGDI;
public interface WinGDIExtra extends WinGDI {
public DWORD SRCCOPY = new DWORD(0x00CC0020);
public DWORD SRCPAINT = new DWORD(0x00ee0086);
public DWORD SRCAND = new DWORD(0x008800c6);
public DWORD SRCINVERT = new DWORD(0x00660046);
public DWORD SRCERASE = new DWORD(0x00440328);
public DWORD NOTSRCCOPY = new DWORD(0x00330008);
public DWORD NOTSRCERASE = new DWORD(0x001100a6);
public DWORD MERGECOPY = new DWORD(0x00c000ca);
public DWORD MERGEPAINT = new DWORD(0x00bb0226);
public DWORD PATCOPY = new DWORD(0x00f00021);
public DWORD PATPAINT = new DWORD(0x00fb0a09);
public DWORD PATINVERT = new DWORD(0x005a0049);
public DWORD DSTINVERT = new DWORD(0x00550009);
public DWORD WHITENESS = new DWORD(0x00ff0062);
public DWORD BLACKNESS = new DWORD(0x00000042);
public DWORD CAPTUREBLT = new DWORD(0x00CC0020 | 0x40000000);
public DWORD Black = new DWORD(0x00000000);
public long WS_CHILD = 0x40000000L;
public long WS_VISIBLE = 0x10000000L;
public long MS_SHOWMAGNIFIEDCURSOR = 0x0001L;
public long WS_EX_TOPMOST = 0x00000008L;
public long WS_EX_LAYERED = 0x00080000;
public long WS_EX_TRANSPARENT = 0x00000020L;
public long WS_CLIPCHILDREN = 0x02000000L;
public long MW_FILTERMODE_EXCLUDE = 0;
}
package jna.extra;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import com.sun.jna.platform.win32.Kernel32;
import com.sun.jna.platform.win32.WinDef.DWORD;
import com.sun.jna.platform.win32.WinDef.HRGN;
import com.sun.jna.platform.win32.WinDef.RECT;
import com.sun.jna.platform.win32.WinDef.HWND;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import luz.winapi.jna.User32;
public class screenSkip {
public static void main(String[] args){
if(!Magnification.INSTANCE.MagInitialize()){
System.out.println("Cannot Intialize Magnification API");
System.exit(0);
}
RECT desktopRect= new RECT();
HWND desktop = User32.INSTANCE.GetDesktopWindow();
if(desktop==null){
System.out.println("Problem with Desktop");
System.exit(0);
}
if(!User32Extra.INSTANCE.GetWindowRect(desktop, desktopRect)){
System.err.println("Cannot get window rect");
System.exit(0);
}
HWND top = User32Extra.INSTANCE.CreateWindowEx(new DWORD(WinGDIExtra.WS_EX_TOPMOST | WinGDIExtra.WS_EX_LAYERED | WinGDIExtra.WS_EX_TRANSPARENT), "#32770", "Parent Window", new DWORD(WinGDIExtra.WS_CLIPCHILDREN), desktopRect.left, desktopRect.top, desktopRect.right-desktopRect.left, desktopRect.bottom-desktopRect.top, desktop, null, null, null);
if(top==null){
System.out.println("Problem while creating Parent Window and the error is "+Native.getLastError());
System.exit(0);
}
HWND hwndMag=null;
System.out.println(Native.getLastError());
hwndMag = User32Extra.INSTANCE.CreateWindowEx(null, "Magnifier", "MagWindow", new DWORD(WinGDIExtra.WS_CHILD | WinGDIExtra.MS_SHOWMAGNIFIEDCURSOR | WinGDIExtra.WS_VISIBLE), desktopRect.left, desktopRect.top, desktopRect.right-desktopRect.left, desktopRect.bottom-desktopRect.top, top, null, Kernel32.INSTANCE.GetModuleHandle(null), null);
if(hwndMag==null){
System.err.println("Problem while creating Magnifier Window and the error is "+Native.getLastError());
System.exit(0);
}
RECT sourceRect= new RECT();
if(!User32Extra.INSTANCE.GetWindowRect(desktop, sourceRect)){
System.err.println("Cannot get window rect");
System.exit(0);
}
final BufferedImage image = new BufferedImage(1366, 768, BufferedImage.TYPE_INT_RGB);
if(!Magnification.INSTANCE.MagSetImageScalingCallback(hwndMag,new MagImageScalingCallback() {
public Boolean MagImageScalingCallback(HWND hwnd, Pointer srcdata,
MAGIMAGEHEADER srcheader, Pointer destdata,
MAGIMAGEHEADER destheader, RECT source, RECT clipped, HRGN dirty) {
image.setRGB(0, 0, srcheader.width, srcheader.height, srcdata.getIntArray(0, srcheader.width * srcheader.height ), 0, srcheader.width);
return true;
}
})){
System.err.println("Error occured while setting callback");
System.exit(0);
}
if (!Magnification.INSTANCE.MagSetWindowSource(hwndMag, sourceRect))
{
System.err.println("Cannot copy");
System.exit(0);
}
try {
ImageIO.write(image, "JPEG", new File("printed1.jpg"));
} catch (IOException e) {
e.printStackTrace();
}
if (!Magnification.INSTANCE.MagSetWindowSource(hwndMag, sourceRect))
{
System.err.println("Cannot copy");
System.exit(0);
}
}
}
MagSetWindowSourceMagImageScalingCallbackWINAPIStdCallCallbackMAGIMAGEHEADERMAGIMAGEHEADER*RECTRECT*RectByValueimport com.sun.jna.platform.win32.WinDef;
import com.sun.jna.Structure;
public class RectByValue extends WinDef.RECT implements Structure.ByValue {}
import com.sun.jna.win32.StdCallLibrary;
public interface MagImageScalingCallback extends StdCallLibrary.StdCallCallback {
public boolean MagImageScalingCallback(HWND hwnd, Pointer srcdata,MAGIMAGEHEADER.ByValue srcheader, Pointer destdata,MAGIMAGEHEADER.ByValue destheader,RectByValue source,RectByValue clipped,HRGN dirty);
}
MagImageScalingCallbackimport com.sun.jna.platform.win32.WinDef;
import com.sun.jna.Structure;
public class RectByValue extends WinDef.RECT implements Structure.ByValue {}
import com.sun.jna.win32.StdCallLibrary;
public interface MagImageScalingCallback extends StdCallLibrary.StdCallCallback {
public boolean MagImageScalingCallback(HWND hwnd, Pointer srcdata,MAGIMAGEHEADER.ByValue srcheader, Pointer destdata,MAGIMAGEHEADER.ByValue destheader,RectByValue source,RectByValue clipped,HRGN dirty);
}
ByValueMAGIMAGEHEADERSIZE\u T