Windows thumbnail preview with JNA (Java)

Posted by rukoche on Stack Overflow See other posts from Stack Overflow or by rukoche
Published on 2010-05-12T18:43:54Z Indexed on 2010/05/12 18:44 UTC
Read the original article Hit count: 586

Filed under:

java

|

jna

|

win32

|

dwm

|

dwmapi

W32API.HWND targetHwnd = User32.INSTANCE.FindWindow('SunAwtFrame', 'Frame')
W32API.HWND sourceHwnd = User32.INSTANCE.FindWindow('triuiScreen', 'EVE')
W32API.HANDLE thumbnailH = new W32API.HANDLE()

NativeLibrary dwm = NativeLibrary.getInstance('dwmapi')
dwm.getFunction('DwmRegisterThumbnail').invoke(targetHwnd, sourceHwnd, thumbnailH)

gives me

# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x70f34bee, pid=7208, tid=7364
#
# JRE version: 6.0_18-b07
# Java VM: Java HotSpot(TM) Client VM (16.0-b13 mixed mode, sharing windows-x86 )
# Problematic frame:
# C  [DWMAPI.DLL+0x4bee]

I have a feeling I'm doing it completely wrong, but digging in documentation got me nowhere.

© Stack Overflow or respective owner

Related posts about java

Tomcat 6: Access Control Exception?

as seen on Server Fault - Search for 'Server Fault'
I'm trying to setup a tomcat6 server, and I'm trying to match another setup someone else established. However, my deployment (default Ubuntu install) uses a policy.d/ directory structure, and the established server just uses a catalina.policy file. I've tried setting every entry in policy.d to match… >>> More
Problem in creation MDB Queue connection at Jboss StartUp

as seen on Stack Overflow - Search for 'Stack Overflow'
I am not able to create a Queue connection in JBOSS4.2.3GA Version & Java1.5, as I am using MDB as per the below details. I am putting this MDB in a jar file(named utsJar.jar) and copied it in deploy folder of JBOSS, In the test env. this MDB works well but in another env. [ env settings and… >>> More
failing to establish connection between Postgres db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am using Postgres and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When I try to connect it gives "ClassNotFoundException". Here is what I get when I try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
failing to establish connection between postgre db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, For i am using postgre and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When i try to connect it gives "ClassNotFoundException". Here is what i get when i try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
Migration and deployement problems JBoss 4.2.2.GA to JBoss 6.0.0.M2

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to migrate an application running on JBoss 4.2.2.GA to JBoss 6.0.0.M2 I give you some log to explain my problem : boot.log : 2010-03-16 09:59:29,406 ERROR [org.jboss.system.server.profileservice.ProfileServiceBootstrap] (Thread-2) Failed to load profile: Summary of incomplete deployments… >>> More

Related posts about jna

Using Xlib via JNA to move a window

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm using JNA to manipulate application windows on Linux by sending Xlib messages but can't seem to move a window. My original implementation executed wmctrl on the shell to move the windows and that successfully moved the windows. Unfortunately, there's a noticeable amount of overhead associated… >>> More
JNA and ZBar(library for bar code reader)

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm creating Java Interface with JNA for ZBar(library for bar code reader). In JNA, structures in C are needed to declare. For example:: // In C typedef struct { char* id; char* name; int age; char* sectionId } EMPLOYEE; to // In Java with JNA public static class Employee extends… >>> More
JNA-Mapping Delphi Function

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi! How do i map this function with JNA: Delphi code: function getData(InData1: PChar; InData2: PChar; Data: TArray16; var OutData1: PChar; var OutData2: PChar): integer; stdcall; with: TArray16 = array[0..15] of char; The… >>> More
jna call to kernel32.CreateToolhelp32Snapshot in shutdown hook crashes the VM

as seen on Stack Overflow - Search for 'Stack Overflow'
If a thread sets a shutdown hook using Runtime.getRuntime().addShutdownHook(); calls via jna the method: kernel32.CreateToolhelp32Snapshot (0x00000002, 0) it crashes the VM. If I call the same method in the WindowListener.windowClosing() hook, the call does not crashes the VM. Any idea… >>> More
Using JNA to link to custom dll

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, how do I access custom .lib / .dll functions using JNA? Can someone provide an example? Thank you. >>> More