hresult 0x800706ba

Whenever you use the thumbnail view in the shell, the shell will display a small preview of the file; in order to produce the preview the shell uses the iextractimage interface wich is declared as follows: Iextractimage = interface (iunknown)['{BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}']Function getlocation (buffer: pwidechar; buffersize: DWORD;Priority: pdword; const size: tsize;Colordepth: DWORD; flags: pdword): hresult; stdcall;Function extract (var b

The method for listing all Shell objects is not provided below. For more information, see Ishelldispatch: Public idispatch {// you must specify the name of the control panel program. cpl suffix hresult controlpanelitem (BSTR szdir); // causes the Start menu to refresh its contentshresult refreshmenu (void); // find the computer hresult findcomputer (void ); // pop up the search file dialog box

VB6.0 uses soaptoolkit to access WebService In VB6.0, how to access a WebService has many instances, which are easy to find. I will not go into detail here. For Setup and usage, see this article "using Microsoft soap Toolkit 2.0 to build a secure web service". However, there are always many problems in use. The two most common problems are listed below: 1. Use mssoap. soapclient object This object can support the WSDL of a lower version, but the following error occurs in the WSDL of a higher ve

For beginner COM, a complete example is still quite troublesome. Recently I have been studying and learned the basic principles through my own exploration. Here we will explain a simple string example step by step. Source code download 1. Create a project First, use vs2010 to create a project. Select an empty project and name it mycom. 2. Create an Interface Class #ifndef IString_h__#define IString_h__#include 3. Create component classes #ifndef String_h__#define String_h__#include "IStri

To be honest, the final solution is to implement the idochostuihandler interface and solve it in the gethostinfo method. However, the "Implementation interface" means that the QueryInterface, addref, and release methods must be implemented, so the relevant code is:Class cmywebbrowser: Public idochostuihandler{Public:Cmywebbrowser () {m_cref = 0 ;}Virtual ~ Cmywebbrowser (){}Long m_cref;PRIVATE:Hresult stdmethodcalltype QueryInterface (refiid riid, void ** ppvobject){

Classes are not encapsulated, but some functions are concentrated in a file. One is the function declaration file dshowutilities. h, and the other is the function definition file dshowutilities. cpp. The functions mentioned here are all copied from the source code or help document provided by Microsoft. First, dshowutilities. h file # Ifndef dshowutilities_h _# Define dshowutilities_h _ # Include # Pragma comment (Lib, "strmiids. lib ") // This is just a small function, but it will be used in s

represent its structure. We can see that any structured storage file has a root istorage. This interface can contain multiple level-1 sub-istorage. level-1 sub-istorage can contain multiple level-2 sub-istorage, the hierarchy and tree structure of Structured Storage files are formed in sequence, and each istorage can contain any istream, which is equivalent to a single file in the file system. The main functions of istorage include: 1.1 stgcreatedocfile This function creates a structured stora

OLE Automation controllers sometimes receive event notifications from the prosecution. For example, webbrowser's onnavagitecomplete and ondocumentcomplete events. The OLE object must implement the iconnectionpointcontainer interface. Iconnectionpointcontainer and several other interfaces related to automation events are defined as follows: Ienumconnections = interface['{B196B287-BAB4-101A-B69C-00AA00341D07}']Function next (CELT: longint; out ELT;Pceltfetched: plongint):

browser. So if we want to control the browser, the correct method is to write a class, inherit cwebbrowsereventhandler and then rewrite the function you need. I simply wrote a code named ccustomwebeventhandler: # Ifndef _ blank _ # DEFINE _ blank _ # pragma onceclass ccustomwebeventhandler: Public cwebbrowsereventhandler {public: ccustomwebeventhandler (){}~ Ccustomwebeventhandler () {} virtual void beforenavigate2 (idispatch * Pdisp, variant * URL, variant * flags, variant * targetframename

definitions. Some interface definitions to be used are excerpted below: ......Extern_c const IID iid_ishelldispatch;# If defined (_ cplusplus )! Defined (cinterface)Interface declspec_uuid ("D8F015C0-C278-11CE-A49E-444553540000 ")Ishelldispatch: Public idispatch{Public:......Virtual hresult stdmethodcalltype minimizeall (void) = 0;Virtual hresult stdmethodcalltype undominimizeall (void) = 0;Virtua

}Pstg: istorage; {associated storage interface}Polesite: ioleclientsite; {associated client site interface}Sizel: tsize; {size of object (may be 0, 0 )}Dvaspect: longint; {display aspect to use}Dwflags: DWORD; {object Status flags}Dwuser: DWORD; {DWORD for user login use}End; Treobject = _ reobject;Tcharrange = record {copy from RichEdit. Pas}CPMin: integer;Cpmax: integer;End; Tformatrange = recordHDC: integer;Hdctarget: integer;Rectregion: trect;Rectpage: trect;Chrg: tcharrange;End; Iricheditol

(This code is from a foreign website and can be used as a reference for "Magic Kobe) Code: unit Unit1;interfaceuses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, OleCtrls, SHDocVw, MSHTML, ActiveX, StdCtrls; type TObjectProcedure = procedure of object; TEventObject = class(TInterfacedObject, IDispatch) private FOnEvent: TObjectProcedure; protected function GetTypeInfoCount(out Count: Integer): HRe