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JNA loadLibrary() method shows an error with arguments
“cannot find symbol method drawImage(java.awt.image.BufferedImage,<nulltype>,int,int)”'Must Override a Superclass Method' Errors after importing a project into EclipseJava: when to use static methodsMaking a mocked method return an argument that was passed to itDownload a file with Android, and showing the progress in a ProgressDialogWhy this class should implement java.io.Serializable when I using hibernate?How to reference a method in javadoc?Can someone show me a simple working implementation of PagerSlidingTabStrip?why spill failure happens for Custom Data Type in HadoopHow do I rectify the Native.loadlibrary error
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-1
I want to set image as a desktop wallpaper using Java. I found a solution in the internet but it does not work. I can't understand what is wrong with it.
Here is what it says to me?
Can you help me?
import com.sun.jna.Native;
import com.sun.jna.platform.win32.WinDef.UINT_PTR;
import com.sun.jna.win32.*;
import java.util.HashMap;
public class WallpaperSetter
public interface SPI extends StdCallLibrary
//from MSDN article
long SPI_SETDESKWALLPAPER = 20;
long SPIF_UPDATEINIFILE = 0x01;
long SPIF_SENDWININICHANGE = 0x02;
//Here is the problem
SPI INSTANCE = (SPI) Native.loadLibrary("user32", SPI.class, new HashMap<Object, Object>()
put(OPTION_TYPE_MAPPER, W32APITypeMapper.UNICODE);
put(OPTION_FUNCTION_MAPPER, W32APIFunctionMapper.UNICODE);
);
boolean SystemParametersInfo(
UINT_PTR uiAction,
UINT_PTR uiParam,
String pvParam,
UINT_PTR fWinIni
);
public static void setWallpaper(String image_url)
String path = image_url;
SPI.INSTANCE.SystemParametersInfo(
new UINT_PTR(SPI.SPI_SETDESKWALLPAPER),
new UINT_PTR(0),
path,
new UINT_PTR(SPI.SPIF_UPDATEINIFILE
java jna
edited Mar 29 at 2:54
shizhen
5,7009 gold badges21 silver badges47 bronze badges
asked Mar 27 at 8:35
NikitaNikita
91 bronze badge
add a comment |
-1
I want to set image as a desktop wallpaper using Java. I found a solution in the internet but it does not work. I can't understand what is wrong with it.
Here is what it says to me?
Can you help me?
import com.sun.jna.Native;
import com.sun.jna.platform.win32.WinDef.UINT_PTR;
import com.sun.jna.win32.*;
import java.util.HashMap;
public class WallpaperSetter
public interface SPI extends StdCallLibrary
//from MSDN article
long SPI_SETDESKWALLPAPER = 20;
long SPIF_UPDATEINIFILE = 0x01;
long SPIF_SENDWININICHANGE = 0x02;
//Here is the problem
SPI INSTANCE = (SPI) Native.loadLibrary("user32", SPI.class, new HashMap<Object, Object>()
put(OPTION_TYPE_MAPPER, W32APITypeMapper.UNICODE);
put(OPTION_FUNCTION_MAPPER, W32APIFunctionMapper.UNICODE);
);
boolean SystemParametersInfo(
UINT_PTR uiAction,
UINT_PTR uiParam,
String pvParam,
UINT_PTR fWinIni
);
public static void setWallpaper(String image_url)
String path = image_url;
SPI.INSTANCE.SystemParametersInfo(
new UINT_PTR(SPI.SPI_SETDESKWALLPAPER),
new UINT_PTR(0),
path,
new UINT_PTR(SPI.SPIF_UPDATEINIFILE
java jna
edited Mar 29 at 2:54
shizhen
5,7009 gold badges21 silver badges47 bronze badges
asked Mar 27 at 8:35
NikitaNikita
91 bronze badge
Well, that error message says that the map parameter is expected to be aMap<String, ?>but you're providing aMap<Object, Object>.
– Thomas
Mar 27 at 8:39
Ok. I changed toMap<String, Object>and now when I choose an image it sets orange color as an desktop image
– Nikita
Mar 27 at 8:45
Well, that seems to be another problem which I can't help solve because I don't really know the user32 library. I'd suspect your parameters are wrong so check those as well as the documentation. If you still got stuck, provide a minimal reproducible example (code, the image you want to set and an image of what you get instead) in a new question since this one is about compilation problems.
– Thomas
Mar 27 at 8:51
Thank you. I managed it myself. It sets only pictures which are downloaded to your PC. I was trying to set a picture which does not exist on computer.
– Nikita
Mar 27 at 9:06
@Nikita Welcome to Stack Overflow. To save time for those of us who want to help you, please use the answer section to answer your question to show how you solved it, so we don't have to read the comments thread to know this still isn't an active question!
– Daniel Widdis
Mar 27 at 16:11
add a comment |
-1
-1
-1
1
I want to set image as a desktop wallpaper using Java. I found a solution in the internet but it does not work. I can't understand what is wrong with it.
Here is what it says to me?
Can you help me?
import com.sun.jna.Native;
import com.sun.jna.platform.win32.WinDef.UINT_PTR;
import com.sun.jna.win32.*;
import java.util.HashMap;
public class WallpaperSetter
public interface SPI extends StdCallLibrary
//from MSDN article
long SPI_SETDESKWALLPAPER = 20;
long SPIF_UPDATEINIFILE = 0x01;
long SPIF_SENDWININICHANGE = 0x02;
//Here is the problem
SPI INSTANCE = (SPI) Native.loadLibrary("user32", SPI.class, new HashMap<Object, Object>()
put(OPTION_TYPE_MAPPER, W32APITypeMapper.UNICODE);
put(OPTION_FUNCTION_MAPPER, W32APIFunctionMapper.UNICODE);
);
boolean SystemParametersInfo(
UINT_PTR uiAction,
UINT_PTR uiParam,
String pvParam,
UINT_PTR fWinIni
);
public static void setWallpaper(String image_url)
String path = image_url;
SPI.INSTANCE.SystemParametersInfo(
new UINT_PTR(SPI.SPI_SETDESKWALLPAPER),
new UINT_PTR(0),
path,
new UINT_PTR(SPI.SPIF_UPDATEINIFILE
java jna
edited Mar 29 at 2:54
shizhen
5,7009 gold badges21 silver badges47 bronze badges
asked Mar 27 at 8:35
NikitaNikita
91 bronze badge
I want to set image as a desktop wallpaper using Java. I found a solution in the internet but it does not work. I can't understand what is wrong with it.
Here is what it says to me?
Can you help me?
import com.sun.jna.Native;
import com.sun.jna.platform.win32.WinDef.UINT_PTR;
import com.sun.jna.win32.*;
import java.util.HashMap;
public class WallpaperSetter
public interface SPI extends StdCallLibrary
//from MSDN article
long SPI_SETDESKWALLPAPER = 20;
long SPIF_UPDATEINIFILE = 0x01;
long SPIF_SENDWININICHANGE = 0x02;
//Here is the problem
SPI INSTANCE = (SPI) Native.loadLibrary("user32", SPI.class, new HashMap<Object, Object>()
put(OPTION_TYPE_MAPPER, W32APITypeMapper.UNICODE);
put(OPTION_FUNCTION_MAPPER, W32APIFunctionMapper.UNICODE);
);
boolean SystemParametersInfo(
UINT_PTR uiAction,
UINT_PTR uiParam,
String pvParam,
UINT_PTR fWinIni
);
public static void setWallpaper(String image_url)
String path = image_url;
SPI.INSTANCE.SystemParametersInfo(
new UINT_PTR(SPI.SPI_SETDESKWALLPAPER),
new UINT_PTR(0),
path,
new UINT_PTR(SPI.SPIF_UPDATEINIFILE
java jna
java jna
edited Mar 29 at 2:54
shizhen
5,7009 gold badges21 silver badges47 bronze badges
asked Mar 27 at 8:35
NikitaNikita
91 bronze badge
edited Mar 29 at 2:54
shizhen
5,7009 gold badges21 silver badges47 bronze badges
asked Mar 27 at 8:35
NikitaNikita
91 bronze badge
edited Mar 29 at 2:54
shizhen
5,7009 gold badges21 silver badges47 bronze badges
edited Mar 29 at 2:54
shizhen
5,7009 gold badges21 silver badges47 bronze badges
edited Mar 29 at 2:54
shizhen
5,7009 gold badges21 silver badges47 bronze badges
5,7009 gold badges21 silver badges47 bronze badges
asked Mar 27 at 8:35
NikitaNikita
91 bronze badge
asked Mar 27 at 8:35
NikitaNikita
91 bronze badge
asked Mar 27 at 8:35
NikitaNikita
91 bronze badge
91 bronze badge
Well, that error message says that the map parameter is expected to be aMap<String, ?>but you're providing aMap<Object, Object>.
– Thomas
Mar 27 at 8:39
Ok. I changed toMap<String, Object>and now when I choose an image it sets orange color as an desktop image
– Nikita
Mar 27 at 8:45
Well, that seems to be another problem which I can't help solve because I don't really know the user32 library. I'd suspect your parameters are wrong so check those as well as the documentation. If you still got stuck, provide a minimal reproducible example (code, the image you want to set and an image of what you get instead) in a new question since this one is about compilation problems.
– Thomas
Mar 27 at 8:51
Thank you. I managed it myself. It sets only pictures which are downloaded to your PC. I was trying to set a picture which does not exist on computer.
– Nikita
Mar 27 at 9:06
@Nikita Welcome to Stack Overflow. To save time for those of us who want to help you, please use the answer section to answer your question to show how you solved it, so we don't have to read the comments thread to know this still isn't an active question!
– Daniel Widdis
Mar 27 at 16:11
add a comment |
Well, that error message says that the map parameter is expected to be aMap<String, ?>but you're providing aMap<Object, Object>.
– Thomas
Mar 27 at 8:39
Ok. I changed toMap<String, Object>and now when I choose an image it sets orange color as an desktop image
– Nikita
Mar 27 at 8:45
Well, that seems to be another problem which I can't help solve because I don't really know the user32 library. I'd suspect your parameters are wrong so check those as well as the documentation. If you still got stuck, provide a minimal reproducible example (code, the image you want to set and an image of what you get instead) in a new question since this one is about compilation problems.
– Thomas
Mar 27 at 8:51
Thank you. I managed it myself. It sets only pictures which are downloaded to your PC. I was trying to set a picture which does not exist on computer.
– Nikita
Mar 27 at 9:06
@Nikita Welcome to Stack Overflow. To save time for those of us who want to help you, please use the answer section to answer your question to show how you solved it, so we don't have to read the comments thread to know this still isn't an active question!
– Daniel Widdis
Mar 27 at 16:11
Well, that error message says that the map parameter is expected to be a
Map<String, ?> but you're providing a Map<Object, Object>.– Thomas
Mar 27 at 8:39
Well, that error message says that the map parameter is expected to be a
Map<String, ?> but you're providing a Map<Object, Object>.– Thomas
Mar 27 at 8:39
Ok. I changed to
Map<String, Object> and now when I choose an image it sets orange color as an desktop image– Nikita
Mar 27 at 8:45
Ok. I changed to
Map<String, Object> and now when I choose an image it sets orange color as an desktop image– Nikita
Mar 27 at 8:45
Well, that seems to be another problem which I can't help solve because I don't really know the user32 library. I'd suspect your parameters are wrong so check those as well as the documentation. If you still got stuck, provide a minimal reproducible example (code, the image you want to set and an image of what you get instead) in a new question since this one is about compilation problems.
– Thomas
Mar 27 at 8:51
Well, that seems to be another problem which I can't help solve because I don't really know the user32 library. I'd suspect your parameters are wrong so check those as well as the documentation. If you still got stuck, provide a minimal reproducible example (code, the image you want to set and an image of what you get instead) in a new question since this one is about compilation problems.
– Thomas
Mar 27 at 8:51
Thank you. I managed it myself. It sets only pictures which are downloaded to your PC. I was trying to set a picture which does not exist on computer.
– Nikita
Mar 27 at 9:06
Thank you. I managed it myself. It sets only pictures which are downloaded to your PC. I was trying to set a picture which does not exist on computer.
– Nikita
Mar 27 at 9:06
@Nikita Welcome to Stack Overflow. To save time for those of us who want to help you, please use the answer section to answer your question to show how you solved it, so we don't have to read the comments thread to know this still isn't an active question!
– Daniel Widdis
Mar 27 at 16:11
@Nikita Welcome to Stack Overflow. To save time for those of us who want to help you, please use the answer section to answer your question to show how you solved it, so we don't have to read the comments thread to know this still isn't an active question!
– Daniel Widdis
Mar 27 at 16:11
add a comment |
1 Answer
1
active
oldest
votes
0
Ok. All is needed to change Map<Object, Object> to Map<String, Object>
answered Mar 30 at 14:22
NikitaNikita
91 bronze badge
add a comment |
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Ok. All is needed to change Map<Object, Object> to Map<String, Object>
answered Mar 30 at 14:22
NikitaNikita
91 bronze badge
add a comment |
0
Ok. All is needed to change Map<Object, Object> to Map<String, Object>
answered Mar 30 at 14:22
NikitaNikita
91 bronze badge
add a comment |
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Ok. All is needed to change Map<Object, Object> to Map<String, Object>
answered Mar 30 at 14:22
NikitaNikita
91 bronze badge
Ok. All is needed to change Map<Object, Object> to Map<String, Object>
answered Mar 30 at 14:22
NikitaNikita
91 bronze badge
answered Mar 30 at 14:22
NikitaNikita
91 bronze badge
answered Mar 30 at 14:22
NikitaNikita
91 bronze badge
answered Mar 30 at 14:22
NikitaNikita
91 bronze badge
91 bronze badge
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Well, that error message says that the map parameter is expected to be a
Map<String, ?>but you're providing aMap<Object, Object>.– Thomas
Mar 27 at 8:39
Ok. I changed to
Map<String, Object>and now when I choose an image it sets orange color as an desktop image– Nikita
Mar 27 at 8:45
Well, that seems to be another problem which I can't help solve because I don't really know the user32 library. I'd suspect your parameters are wrong so check those as well as the documentation. If you still got stuck, provide a minimal reproducible example (code, the image you want to set and an image of what you get instead) in a new question since this one is about compilation problems.
– Thomas
Mar 27 at 8:51
Thank you. I managed it myself. It sets only pictures which are downloaded to your PC. I was trying to set a picture which does not exist on computer.
– Nikita
Mar 27 at 9:06
@Nikita Welcome to Stack Overflow. To save time for those of us who want to help you, please use the answer section to answer your question to show how you solved it, so we don't have to read the comments thread to know this still isn't an active question!
– Daniel Widdis
Mar 27 at 16:11