hresult 0x800706ba

, commands, recordset _connectionptr createconnptr (); _commandptr createcommptr (); _RecordsetPtr createrecsetptr (); Private //connection required for database connection, command action object _connectionptr m_pconnection; _commandptr M_pcommand; }; Create a new C + + source file named CDBOperation.cpp:[CPP]View plain copy #include "stdafx.h" #include "DBOperation.h" Cdboperation::cdboperation (void) { CoInitialize (NULL); M_pconnection = Createconnptr ();

1.UUID Value:Xxxx.idl the bottom:Cmsgpromptctrl's class information[UUID (84045072-8aa6-40d2-a641-0097f7f6650f)]CoClass Msgprompt{[Default] dispinterface _dmsgprompt;[Default, source] dispinterface _dmsgpromptevents;};2. Security Code:Add in XXXCtrl.h#include Security CodeDeclare_interface_map ()Begin_interface_part (Objsafe, IObjectSafety)Stdmethod_ (HRESULT, GetInterfaceSafetyOptions) (REFIID riid,DWORD __rpc_far *pdwsupportedoptions,DWORD __rpc_far

Server code ----------------------------------------------------------------------------------------------------------------------------------------------------------- Server code certificate ------------------------------------------------------------------------------------------------------------------------------------------------------------ Altstopwatch. idl [interface definition file] // altstopwatch.idl : IDL source for altstopwatch//// This file will be processed by the MIDL tool to//

.tli two files under your Project compilation folder, open and look at these two files contain declarations of COM interface types and functions, as well as some library information. In fact, #import指令使dll库中的类型信息导出为描述的COM接口的c + + class header file. The "raw_interfaces_only" attribute makes the generated file only one MSXML6.TLH, and the interface function only has the HRESULT return type one form, and omit the raw_ prefix; If you remove this property,

factory.// IMPLEMENT_OLECREATE_EX (CTixCtrl, "TIX. TixCtrl.1 ",// 0x6aa1f79, 0x1874, 0x445c, 0xb9, 0xa, 0x23, 0x36, 0xb7, 0x39, 0xf2, 0x54) 3. Add three functions in tix. cpp to get the component class manager and register yourself. // Create Component TypesHRESULT CreateComponentCategory (CATID catid, WCHAR * catDescription){ICatRegister * pcr = NULL;HRESULT hr = S_ OK; Hr = CoCreateInstance (CLSID_StdComponentCategoriesMgr,NULL, CLSCTX_INPROC_SERVE

(CTagcCtrl, Dispatchx)Return pThis-> ExternalRelease ();} Hresult far export CTagcCtrl: XDispatchx: QueryInterface (REFIID iid, void FAR * ppvObj){METHOD_PROLOGUE (CTagcCtrl, Dispatchx)Return (HRESULT) pThis-> ExternalQueryInterface ( iid, ppvObj );} STDMETHODIMP CTagcCtrl: XDispatchx: GetTypeInfoCount (UINT * pctinfo){METHOD_PROLOGUE_EX _ (CTagcCtrl, Dispatchx)* Pctinfo = pThis-> GetTypeInfoCount ();Retur

Initialization and ActiveX control templates ". Note:This article does not cover how to mark the control as secure download. For more information about code download and $ code signature, see Internet client SDK. Go back to the top. For more information, follow these steps to mark your MFC ActiveX control as a secure operation for Script Security and initialization: Add the following cathelp. h and cathelp. cpp files to your project to implement the helper function of CreateComponentCategory

Proxy supportedConst int CONNMGR_FLAG_PROXY_WAP = 0x2; // @ constdefine WAP Proxy (gateway) supportedConst int CONNMGR_FLAG_PROXY_SOCKS4 = 0x4; // @ constdefine SOCKS4 Proxy supportedConst int CONNMGR_FLAG_PROXY_SOCKS5 = 0x8; // @ constdefine SOCKS5 Proxy supported Const UInt16 IDC_WAIT = 32514;Const UInt16 IDC_ARROW = 32512; Private IntPtr m_hConnection = IntPtr. Zero; Public ConnectManager (){} ~ ConnectManager (){ReleaseConnection ();} /// /// Check whether the connection is available/// ///

7. com_interface_entry_autoaggregate (IID, punk, CLSID) parameter ATL routine commap Let's take a look at the macro definition:# Define com_interface_entry_autoaggregate (IID, punk, CLSID )/{ IID ,/(DWORD) _ ccomcachedata (DWORD) offsetof (_ commapclass, punk )/>: Data ,/_ Cache },Let's take a look at its typical usage:Class cautoagg:Public idispatchimpl,Public isupporterrorinfo,Public ccomobjectroot,Public ccomcoclass{............};Similar to general components.Class couter:Public cchainbase,

array. When dllgetclassobject requests a factory class object, it searches for this array to see if there is a factory class object that matches clsid. When it finds a matched CLSID, it creates a class factory object and returns the class factory pointer to cogetclassobject. Then the client can call iclassfactory based on the class factory pointer returned :: the createinstance method creates a component, and the class factory creates a COM component based on the methods defined in the array. T

, cparticle is not very complicated. It has a series of public variables, the attributes of the particles-set the default value through the constructor, And the inline function executes the update. Don't worry about updating functions-you will know how it works later. Now let's look at cparticle's mother cparticleemitter. Cparticleemitter This class contains our particle array, using particle attributes (gravity, texture, etc) Class cparticleemitter {Public: cparticleemitter (); Virtual ~ Cparti

Donuts from Microsoft //-----------------------------------------------------------------------------// File: filewatch. cpp//// Copyright (c) Microsoft Corporation. All rights reserved.//-----------------------------------------------------------------------------# Include "stdafx. H" //-----------------------------------------------------------------------------// Name:// Desc://-----------------------------------------------------------------------------Cfilewatch: cfilewatch (){M_nfilestowa

include: 1. comimport: it marks the class as an external com class. 2. guid: it is used to specify a universal unique identifier (UUID) for a class or interface ). 3. interfacetype, which specifies whether the interface is derived from iunknown or idispatch. 4. preservesig, which specifies whether the native return value should be converted from hresult to. NET Framework exception.Section 6 Interface Conversion C # not only supports the. NET

contained object only needs to implement a lightweight iobjectwithsite interface. This interface provides the following methods:Table 3 iobjectwithsite DefinitionMethod descriptionHresult setsite (iunknown * punksite) receives the iunknown pointer from IE. A typical implementation is to save the pointer for future use ..Hresult getsite (refiid riid, void ** ppvsite) receives and returns the specified interface from the location set through setsite, A

dllgetclassobject requests a factory class object, it searches for this array to see if there is a factory class object that matches clsid. When it finds a matched CLSID, it creates a class factory object and returns the class factory pointer to cogetclassobject. Then the client can call iclassfactory based on the class factory pointer returned :: the createinstance method creates a component, and the class factory creates a COM component based on the methods defined in the array. The factory t

END; Four, get IHTMLDocument2 how to operate Procedure Tmyform.btlogoutclick (Sender:tobject); var myform:ihtmlformelement; Begin if assigned (myDocument) THEN BEGIN if rightposex (' Judge page title ', Mydocument.title) Prohibit the Page Pop-up dialog box (mainly is the CSDN forum a Warrior's method) Uses Windows, Messages, sysutils, variants, Classes, Graphics, Controls, Forms, Dialogs, Olectrls, SHDOCVW, stdctrls,mshtm L, Extctrls, Comctrls, Idbasecomponent, Idcomponent, Idtcpconnection, Id

HRESULT HRESULT; Gets the filter string for the image file supported by CImage HResult = m_image.getexporterfilterstring (Strfilter,aguidfiletypes, _t ("All Image Files")); if (FAILED (HResult)) { MessageBox ("Getexporterfilter call failed!) "); Return } CFileDialog dlg (TRUE, NULL, NULL, ofn_filemustexist, strfilter

();}; The constructor is responsible for allocating resources and initializing member variables. The Destructor is responsible for releasing resources: cAnimMesh::cAnimMesh(){m_is_play_anim = true;m_device = NULL;m_anim_controller = NULL;m_root_frame = NULL; m_alloc_hierarchy = new cAllocateHierarchy();} cAnimMesh::~cAnimMesh(){D3DXFrameDestroy(m_root_frame, m_alloc_hierarchy);release_com(m_anim_controller); delete m_alloc_hierarchy;} The main task of the load_from_xfile () function is

and potentially unnecessary parts, such as com registration, runtime service, proxy, thread model, and mail handling. Create an XML reader and writer for functions exported from xmllite. dll. Link to xmllite. lib and include the xmllite. h header file in the Windows SDK to access them. The generated com style interface uses the familiar iunknown interface method to manage the lifetime. The com istream interface also plays a role and indicates memory. In addition, there is no com dependency; no

Let's not talk about anything else. Code , The code is very simple, do not understand the message. Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> 1 Using System; 2 Using System. Collections. Generic; 3 Using System. LINQ; 4 Using System. text; 5 Using System. runtime. interopservices; 6 Using Mshtml; 7 Using System. Threading; 8 Using System. runtime. interopservices. comtypes; 9 Using System. I