native-methods

I am unit testing a class TestMe using EasyMock, and one of its methods (say method(N n) ) expects a parameter of type N which has a native method (say nativeMethod() ). class TestMe { void method(N n) { // Do stuff n.nativeMethod(); // Do more stuff } } method() needs to invoke N.nativeMethod() at some point, and the problem I'm having is that my Easymock mock object for N is unable to override the native method. I do not own class N but I can refactor TestMe in any way necessary. I decided to make my own class FakeN extends N which overrides nativeMethod to do nothing: class FakeN extends N

I am trying to load an application's icon(s) using the LoadImage WinAPI function, but for some reason it always returns 0. I have read the documentation , but I cannot understand what I've done wrong. I get no exceptions except for when trying to convert IconPtr to Icon (which is becasue IconPtr is 0). Public Shared Function ExtractAssociatedIconArray(ByVal File As String, ByVal Sizes() As Size) As Icon() Dim ReturnArray(Sizes.Length) As Icon Dim Index As Integer = 0 For Each s As Size In Sizes 'IconPtr is always zero for some reason. Dim IconPtr As IntPtr = NativeMethods.LoadImage(Nothing,

I'm trying to calculate cursor acceleration / velocity. I read Find the velocity of the mouse in C# and decided to take Hans's suggestion of using GetMouseMovePointsEx ( pinvoke.net , MSDN ). I made a demo program to test it out (see full code below) but it has a big limitation. It won't return points once the cursor leaves the window. In fact, the function returns -1 (win32Exception 1171, "The point passed to GetMouseMovePoints is not in the buffer") if execution isn't limited to points within the MainWindow. I suspect this may be because I'm using Mouse.GetPosition() to provide the mp_in

https://msdn.microsoft.com/en-us/library/ms182161.aspx Are the three classes described on this paged handled specially in the .NET Framework? (NativeMethods, SafeNativeMethods and UnsafeNativeMethods) The reason I'm asking is I'm wondering if it is alright to create categories of NativeMethods classes. For example: ComNativeMethods User32NativeMethods OleStorageNativeMethods It's a convention, not a requirement. If you reflect into the CLR and take a look at code in there, you'll often see P/Invoke code inside a NativeMethods class. I believe that FxCop will recommend putting your P/Invoke

I am writing a project that reads a file and sorts "Words". This code compiles correctly, yet then it gives me a null pointer exception. Any Ideas? import java.io.File; import java.io.FileNotFoundException; import java.util.Scanner; import java.util.Hashtable; public class Lab { Hashtable<String, Word> words = new Hashtable<String, Word>(); public void addWord(String s, int i) { if (words.containsKey(s)) { words.get(s).addOne(); words.get(s).addLine(i); } else { words.put(s, new Word(s)); words.get(s).addLine(i); } } public void main(String[] args) { System.out.println("HI"); File file = new

I am developing a Delphi documents management application, so somehow I am giving the user some functionality similar to windows explorer. I would like to know if there is a way to get the preview used by windows explorer. For example windows explorer creates a small thumbnail for a pdf document for example, and displays it when the user chooses to view "big icons". Is there a way to retrieve that preview? MyTImage := GiveMePreviewForFile('C:\Test\File.pdf'); RRUZ @user193655, using the IExtractImage interface is the way to go, this interface exposes methods that request a thumbnail image from

I'm going to be running document.querySelectorAll() a whole lot, and would like a shorthand alias for it. var queryAll = document.querySelectorAll queryAll('body') TypeError: Illegal invocation Doesn't work. Whereas: document.querySelectorAll('body') Still does. How can I make the alias work? Sunday Ironfoot This seems to work: var queryAll = document.querySelectorAll.bind(document); bind returns a reference to the querySelectorAll function, changing the context of 'this' inside the querySelectorAll method to be the document object. The bind function is only supported in IE9+ (and all the