hresult 0x800706ba

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The connection object and connection point mechanism in COM and Its MFC Program Implementation

.{: Afxmessagebox ("the source object sends a notification to the event receiver! ");Return s_ OK;} Initialize the com library and create a component object instanceWrite in cconnclientdlg: oninitdialog:Hresult;Hresult =: coinitialize (null );If (failed (hresult )){: Afxmessagebox ("the com library cannot be initialized! ");Return false;}M_piunknown = NULL;Hresult

Advanced articles in the GPRS Development Series)

, the Connection Manager queues the requested connection, then use CSPs to establish a connection at a suitable time. [API function ]: A) connmgrapireadyevent () functionFunction prototype: handle winapi connmgrapireadyevent ();Using this function, we can return a connection event handle. Remember to release it in time after obtaining the handle. B) connmgrconnectionstatus () functionFunction prototype: hresult winapi connmgrconnectionstatus (han

Webbrowser-interoperability between JavaScript and C ++

the ID to determine which method (or attribute) of the specified object to call. Therefore, the method used to call the object through the method (or attribute) name is, you must call the getidsofnames method of idispatch to convert the method (or attribute) name to an ID before calling the object method through the invoke method of idispatch. To facilitate operations, three functions are encapsulated to call the methods of the webbrowser object, read the attributes of the object, and set the a

Vc. NET extends the capabilities of the Windows Disk Cleanup tool

automatically compressed. These new features are implemented through COM modules and invoked as Plug-ins in the cleanup tool. Earlier versions were invoked through the Iemptyvolumecache interface, and in later versions of Windows 2000, the IEmptyVolumeCache2 interface was added, adding smaller updates. The Iemptyvolumecache interface consists of five functions, according to the order of the call, respectively: Virtual/* [local]/HRESULT

ActiveX controls implement secure initialization and scripts

(ctryisafeobjectctrl)//...................................... ..................................// IsafeobjectDeclare_interface_map () Begin_interface_part (objsafe, IObjectSafety)Stdmethod _ (hresult, getinterfacesafetyoptions )(/* [In] */refiid riid,/* [Out] */DWORD _ rpc_far * pdwsupportedoptions,/* [Out] */DWORD _ rpc_far * pdwenabledoptions);Stdmethod _ (hresult, setinterfacesafetyoptions )(/* [In] */

Getting started with text speech conversion (zz)

ispvoice interface also has many member functions. For more information about the usage, see the SDK documentation. The following describes the usage of several major functions: Hresult speak (const wchar * pwcs, DWORD dwflags, ulong * pulstreamnumber); function: refers to the Speak parameter: * The text string entered by pwcs, which must be Unicode, if it is an ANSI string, it must be converted to Unicode first. Dwflags is used to mark the mode of s

VBS two ways to create regular expression objects _vbs

All along, I used the New RegExp to create regular expression objects: Set regex = new RegExp However, it is also possible to create a regular expression object that is new to the VBS: Set regex = CreateObject ("VBScript.RegExp") it seems that none of the VBScript books I've read has been written about this, and of course there's still a lot of stuff that's not on the books. Now that a regular expression is mentioned, by the way, the regular expression object of VBS supports MultiLine mode, and

The basic use of CDHtmlDialog (c + + call JS function implementation) __JSONP

From: Qing Pan network-http://www.tsingfun.com/html/2015/dev_0826/CDHtmlDialog_cpp_call_js_interactive.html "The basic use of CDHtmlDialog (JS call C + + function implementation)"Based on the above articles, this article expands on its code base:First, add a C + + button on the main dialog box, as follows: The operation effect is as follows: Second, for C + + button to add call JS code:Jscppinteractive.htm to add a JS function for C + + calls, the code is as follows: Add the following code at

Use. NET components in COM applications

. DLL, which is the legendary Shim. It will load the common language runtime and find the real. NET Component ----. DLL. With the above two steps, we can use the. NET Component in the com application. Writing COM components is beyond the scope of this article. If you are interested, refer to the comments in the code. CL client. CS // Client. CS # DEFINE _ win32_com # Include # Include # Import "A. TLB" no_namespace named_guids raw_interfaces_only // A. TLB is exported in step 2 In

"Translator" Kinect v2 program Design (c++-) Audiobeam

the results in the example program on the console. Features of audio(Audiobeam,Speech Recognition)The data acquisition processIn"sensor"~"source" This piece with the previousImage(Color,Depth,Bodyindex,Body) of the acquisition processThe same. But after that, please note thataudio feature-specific section, here is the main introduction andthe same data acquisition process as Image. The full contents of this sample program,It's all public on the following GitHub. Https://github.com/UnaNancyOwen/

How to listen for arcengine COM events in VC code

In Arcengine, many components send information in event mode. For example, in Mapcontrol, there are events such as mouse press events, mouse movements and so on, Iworkspaceedit also have the beginning edit, end edit and so on. Sometimes we need to be aware of these events in order to process the necessary information when they occur. So, how do you listen to events for components? The following is an example of a listener editing event to illustrate how listening is handled. To turn on help, we'

Deep parsing of events in C + + programs and event handling in COM _c language

the event source interface definition. The first is to share a common header file, as shown below. The second is to use the #import in conjunction with the Embedded_idl import qualifier so that the event source type library is written to the. tlh file that retains the code generated by the attribute.Firing eventsTo fire an event, simply call the method in the interface that is declared using the __event keyword in the event source class. If the handler is hooked to an event, the handler is invo

WebBrowser Introduction to--javascript and C + + interoperability

method (or property) name to an ID before you can invoke the method of the object through the IDispatch invoke method. For ease of operation, three functions were encapsulated to invoke the WebBrowser object's method, read the object's properties, and set the object's properties. DispID Cwebbrowserbase::findid (IDispatch *pobj, Lpolestr pName) {DispID id = 0; if (FAILED (Pobj->getidsofnames (iid_null,pname,1,locale_system_default,id))) id =-1; return ID;}

Multimedia programming of WinCE Based on DirectShow

follows: A) audio codecs and Renderer For example, to play music in MP3 format, you must check MP3 Codec. B) Video codecs and Renderer C) DirectShow This includes the Core Components and filters of DirectShow. DirectShow uses filters to complete core functions. If the DirectShow component is not added, use the SDK exported by the system. It is likely that our DirectShow application compilation will fail. Even if the compilation is successful, it cannot work normally. In addition, there are M

Com call Method

= Loadlibrary (_ T ( " Dllfunc. dll " )); If (Hmodule) { // Get function address Fnadd = (Lpfunc) getprocaddress (hmodule, " Add " ); If (Fnadd) {//Call a functionIret=Fnadd (2,4);Printf ("Result is % d", Iret );} // Release a dynamic library Freelibrary (hmodule );Hmodule = NULL;} 2. COM component function call (invoke of idispatch)Assume that there is a component whose progid is "atlfunc. mymath.1". The attributes and interface methods are as follows

Gifolecontrol 1.0.2 Function Description

Gifolecontrol can insert images, including BMP, JPG, and PNG. The image size is not limited. The key point is that GIF animation can be inserted in RichEdit. Currently, swf format cannot be inserted. At the same time, you can directly display tooltip In the inserted image and GIF to facilitate the application. The interface defined by gifolecontrol is as follows: Interface igifctrl: idispatch {[Propput, Bindable, requestedit, ID (dispid_bordercolor)]Hresul

Idispatch interfaces-getidsofnames and invoke

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,

WebGIS Design and Implementation Principles

maintain the customer status on the server.5Appendix: interfaces and methods of WebGIS WebServicesMaybe they accidentally become standards? In fact, it is intended for readers to have a reference and a negative model when doing this design. I removed the data modification API, which is too dangerous. // WebGIS interface method description // August 2006 // ATL server WebGIS services created by cheungmine@gmail.com ////////////////////// /// // about mtkwebgisservice //// ///////////////////////

How does VC call the interface functions of the COM control?

: # Import "Account. tlb" rename_namespace ("AccountDriver ") Using namespace AccountDriver; In this way, you only need to define the Smart interface pointer IAccountPtr: IAccountPtr m_account; The call to functions and attributes in the Code component is the same as that in the first two methods, and the access is completed through m_account. Because of the introduction of the _ com_ptr_t template class and smart pointer, the # import command method is the simplest method to use the COM compone

Windows Vista for developers -- Part 6: New File Dialog Box

. Imodalwindow:Ifiledialog. The show method is provided. Ifiledialogcustomize:FileopendialogAndFilesavedialogCom class implementation provides support for adding new controls in the dialog box. Ifiledialogevents: Implemented by the application to listen for events in the dialog box. Ifiledialogcontrolevents: Implemented by the application to implement the event function of the control added in the listener dialog box. We may also use some APIs that are not brand new, suchIshell

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