hresult 0x80004005

,{0X92,0X0B,0XA7,0XBD,0XEE,0X6D,0X2B,0XA3}};{0x36299202, 0x9ef, 0x4abf,{0xad, 0xb9, 0x47, 0xc5, 0x99, 0xdb, 0xe7, 0x78}};Ccardscanapp::initinstance-dll initializationBOOL ccardscanapp::initinstance (){BOOL binit = Colecontrolmodule::initinstance ();if (binit){}return binit;}Ccardscanapp::exitinstance-dll terminated.int Ccardscanapp::exitinstance (){return Colecontrolmodule::exitinstance ();}HRESULT createcomponentcategory (CATID CATID, CHAR *catdescri

follows: HRESULT d3dx11createshaderresourceviewfromfile ( _in_ id3d11device *pdevice, _in_ LPCTSTR psrcfile, _in_ d3dx11_image_load_info *ploadinfo, _in_ id3dx11threadpump * Ppump, _out_ id3d11shaderresourceview **ppshaderresourceview, _out_ HRESULT *phresult );Id3d11device *pdevice: This is the device interface pointer, which is the LP

After work, in the reading of the code written by foreigners, found a very interesting thing, we often say goto statement is harmful, mainly it jumps to jump, upset logic. But Goto also has benefits, such as single-exit, unified freeing of memory aspects, the next look at a function of MAPI initializationintMapiinit () {intResult =Dt_error; HRESULT HRESULT=S_FALSE; HANDLE Hlock=NULL; BOOL bLocked=FALSE; DWO

The method of the COM component is declared in IDL: [ID (1), helpstring ("Method Inputarray")] HRESULT Inputarray ([in] VARIANT vdata); Methods to establish an array in a script and invoke a COM component: When the array is large, like 100k, JavaScript is very inefficient when assigning values to arrays! Completion time, CPU occupancy rate, memory consumption is terrible. Instead, VBScript did a good job. Code for COM components: You can see from

file to the project name Ctrl.h file#include Find Declare_dyncreate (project name ctrl)After that, add the following codeDeclare_interface_map () Begin_interface_part (Objsafe, IObjectSafety) Stdmethod_ (HRESULT, getinterfacesafetyoptions) ( refiid riid, *pdwsupportedoptions, * pdwenabledoptions ); Stdmethod_ (HRESULT, SetInterfaceSafetyOptions) (

query, so what is this interface? This is the famous IUnknown interface, and the IUnknown interface is defined in the Windows SDK Unknwn.h, which is defined as follows: Copy Code code as follows: Interface IUnknown { Public Virtual HRESULT stdmethodcalltype QueryInterface (REFIID riid, _com_outptr_ void **ppvobject) = 0; Virtual ULONG stdmethodcalltype AddRef (void) = 0; Virtual ULONG Stdmethodcalltype release (void) = 0;

operation rather than a COM operation, in the lookup SQL This is especially true when the server online brochure (BOL) is in use. Let's talk about how to use SQL Server's COM automated operation stored procedures and how COM automated operations can help us solve real-world programming problems. Details of COM operations Table 1 lists the 7 extended stored procedures for COM operations in SQL Server. When automating a COM object, you need to first establish an instance of a COM object by callin

Three, purely manually create a COM component 1, from the construction project to the implementation of registration In this process we will complete three steps: Create DLL entry function, define interface file, implement registration function 1.1 Create a type Win32 DLL project Create a Win32 DLL project called Mathcom. In the second step of the wizard, select the "A smiple DLL project" option. Of course, if you choose an empty project, then you complete the DllMain definition yourself.

These are in the MFC framework for the study of insurance projects, only studied for two weeks, but still learned a lot of knowledge. Here is a look at the various operations of the database using ADO. 1, the database connection and open the project is SQL Server database, ADO connection data encountered the most important problem is to find the connection string, through a variety of personal experience, found on the internet a bug-free method, is by creating a new Ado.udl file and then open

the source ); The DoDragDrop parameter contains information about the drag and drop source object and the drag data. In the DoDragDrop function, the information about the drag target object is obtained through the cursor position. Next, the author provides a method to drag and drop files without using the mouse, but by simulating code.To use the code to simulate the drag and drop operation, you need to extract the GUI operation part of the DoDragDrop function to find the function that actually

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, shlobj, classes; TypeTcontextmenu = Class (tcomobject, ishellextinit, icontextmenu)PrivateFfilename: array [0 .. max_path] of char;ProtectedFunction ishellextinit. initialize = seiinitialize; // avoid compiler warningFunction seiinitialize (pidlfolder: pitemidlist; lpdobj: idataobject;Hkeyprogid: hkey): hresult; stdcall;Function querycontextmenu (menu: hmenu; indexmenu, id1_first, idcmdlast,Uflags: uint): hresul