hk invoke

Today I stumbled upon some information about invoke and BeginInvoke, and I was not quite sure of the difference between them. So it took a little time to study it. The biggest difference, according to MSDN, is that BeginInvoke is part of asynchronous execution. Control.Invoke Method (Delegate): Executes the specified delegate on the thread that owns the underlying window handle of this control.Control.BeginInvoke method (Delegate): Executes the spec

Recently, the invoke and begininvoke involved a huge number of tasks, so I checked some relevant information and sorted it out as follows. Thanks for this Article I understand the true meanings of invoke and begininvoke. (1) control invoke and begininvoke Based on the following knowledge: (1) The invoke and begininvok

Original posts: http://www.cnblogs.com/Z-King/archive/2011/11/03/2234337.htmlhas been the use of invoke and BeginInvoke and the concept of confusion, the two days to read some information, the use of these two and the principle of a new understanding and understanding.First of all, there are two scenarios for invoke and BeginInvoke use:1. Invoke, BeginInvoke in c

From:http://www.th7.cn/program/net/201306/140033.shtml Controls in Windows forms are bound to a specific thread and do not have thread safety. Therefore, if you invoke a control's method from another thread, you must use an Invoke method of the control to marshal the call to the appropriate thread. This property can be used to determine whether the Invoke met

Dispatch_propertyget The member is retrieved as a property or data member.This is the most critical address of this article, if the value you return is a COM object, will the caller increase AddRef? No, so you need to add the count yourself, or the program will soon crash Provides access to properties and methods exposed by an object. The dispatch function Dispinvoke provides a standard implementation of Invoke.Syntaxc++HRESULT

The problem arises: My WinForm program has a worker thread that updates the main window, but the document prompts me not to call this form in multiple threads (why?). , and the fact that my program often collapses when I call. How do I call a method in form from multiple threads? Answer: Each WinForm class (including the control class) derived from the control class relies on the underlying Windows message and a message pump loop (Messages pump loop). The message loop must have a correspondin

Convert System::String to wchar_t* or char*PtrToStringChars converting a string to native wchar_t * or char *。 Because the CLR string is internal Unicode, this typically returns a Unicode wide string pointer. You can then convert it to a wide string1. NET Interop. NET cannot manipulate unmanaged code directly, you need to interoperate.1.1 P/invokeMany common Windows operations have managed interfaces, but there are many full Win32 parts that do not have managed interfaces. How does it work? Plat

The idispatch interface is the core of COM automation. In fact, the idispatch interface is also very simple, there are only four methods: IDispatch : public IUnknown { public: virtual HRESULT STDMETHODCALLTYPE GetTypeInfoCount( /* [out] */ __RPC__out UINT *pctinfo) = 0; virtual HRESULT STDMETHODCALLTYPE GetTypeInfo( /* [in] */ UINT iTInfo, /* [in] */ LCID lcid, /* [out] */ __RPC__deref_out_opt ITypeInfo **ppTInfo) = 0

other threads change the appearance of the control. However, such a situation does not always occur, if the main thread at this time in the redrawing of the other controls, it may escape a robbery, such a way to pass the normal, no triggering exception.The correct way to do this is to invoke the control's Invoke method in the control's response function (in fact, if you have used C + + builder before, you

The delegate is used in the use of invoke or begininvoke without exception.I. Why does the control class provide the invoke and begininvoke mechanisms? The main reason for this problem is already well known by dotnetprogrammers. I have recorded my own logs again here so that I can remind myself later.1. Windows program message mechanism The Windows GUI program is based on the message mechanism, and a main t

From http://www.cnblogs.com/c2303191/articles/826571.html Control. Invoke method (delegate):InYesOn the thread of the basic window handle of this controlRunThe specified delegate. Control. begininvoke method (delegate): InCreateOn the thread where the basic handle of the control is locatedAsynchronous executionSpecify the delegate. (1) control invoke and begininvokeBased on the following knowledge:(1) The

I. Differences between dynamic proxy and static proxy. (1) The Proxy class code is fixed and won't be huge because of the increasing size of the business; (2) AOP programming can be implemented, which cannot be implemented by the static Proxy; (3) decoupling, for web services, you can separate the data layer from the business layer. (4) the advantage of dynamic proxy is non-intrusive code extension. The static proxy mode itself has a big problem. If the number of class methods is increasing, the

PHP5.3 adds the magic method _ invoke overview, 5.3 _ invoke. PHP5.3 adds the magic method _ invoke overview, and 5.3 _ invokePHP has added a magic method called _ invoke since version 5.3. after creating an instance, you can use this method, directly call PHP 5.3 to add the magic method _

P/invoke can be automatically generated using tools to reduce Obfuscation 1. Official support Http://visualstudiogallery.msdn.microsoft.com/site/search? Query = P % 2 finvoke F % 5b0% 5d. value = P % 2 finvoke F % 5b0% 5d. type = searchtext AC = 4 Microsoft also has many official extensions. Open-source tools Http://www.pin5i.com/showtopic-22763.html It seems that Microsoft is also very popular. NetPoorP/invokeSupport, so helplessReleas

Today, inadvertently read the code written by the great God, see the Invoke function, and then generate interest. Later learned that they have to learn a lot of things.Here's how to use it.Invoke is a deferred call function that requires the introduction of a namespace using unityengine.events before using the Invoke function;1.Invoke ("MethodName", 2)This is rel

Invoke method are used.------------------------------------------------------------------------Gets a value that indicates whether the caller must call the Invoke method when making a method call to the control, because the call is in a thread other than the one on which the control is created.True if the control's Handle is created on a different thread than the calling thread (indicating that you must ca

Invoke method are used.------------------------------------------------------------------------Gets a value that indicates whether the caller must call the Invoke method when making a method call to the control, because the call is in a thread other than the one on which the control is created.True if the control's Handle is created on a different thread than the calling thread (indicating that you must ca

Public partial class ucinfo: usercontrol {public ucinfo () {initializecomponent ();} manualresetevent neversetevt = new manualresetevent (false); Delegate void encrypt (); Public void setinfo (string info) {lblinfo. invoke (New invokedelegate () => {lblinfo. forecolor = color. green;}), null); lblinfo. invoke (New invokedelegate () => {lblinfo. TEXT = Info;}), null); threadpool. registerwaitforsingleobject

Project: Wireless passive temperature measurement software systemProject, to use P/invoke in. NET call Win32API, to implement the INI configuration file read and write Function! Because there is some configuration information that needs to be saved so that the next startup program finishes initializing, this is actually a kind of class persistence. Will beSome information is written to the INI file (initialization files) for simple persistence support

The delegate is used in the use of invoke or begininvoke without exception. I. Why?ControlClass providesInvokeAndBegininvokeMechanism? The main reason for this problem is DOTNET.ProgramAs we all know, I have recorded my logs again here, so that I can remind myself later. 1,WindowsProgram message mechanism The Windows GUI program is based on the message mechanism, and a main thread maintains a message pump. This message pump keeps Windows pro