hresult 0x800706ba

detail. 1. Initialization1) Create an idirectsound8 interface object You can use the directsoundcreate8 () method to create a device object. This object usually represents the default playing device. The directsoundcreate8 () function is defined as follows. HRESULT DirectSoundCreate8( LPCGUID lpcGuidDevice, LPDIRECTSOUND8 * ppDS8, LPUNKNOWN pUnkOuter) The parameters are described as follows: Lpcguiddevice: guid of the device object to be created.

the index of the pointer of the function in vtbl so that it can call them? When a macro language calls a function in the COM component, three types of information can be used: the proid, function name, and parameters passed to the function. The macro runtime system must provide a simple method to execute functions with the old name of the function. This method is the idispatch interface. 1.2idispatch Interface In short, idispatch will receive a function name and execute it. IDL description of

Compile a transform filter to flip the image. In msdn, the "Writing transform filters" section lists the six basic steps for writing a transform filter. Follow these six steps one by one. 1. Select base class Derived from cbasefilter, three classes are used to compile the transform filter: ctransformfilter, ctransinplacefilter, and cvideotransformfilter. For the differences between the three base classes, see the description of msdn. We select the ctransformfilter class. After selecting the bas

, the constructor simply calls AddRef of the pointer. However, if the type is different, it first calls the QueryInterface of the pointer to obtain the same type of interface pointer. When the QueryInterface fails, the internal pointer is set to NULL. All the following code can be used to check whether the conversion is successful: Void func (iunknown * punk) (2) Assignment When assigning values, the following three events occur: 111. If the current pointer is not null, release the current po

administrators section. Using an administrator (preferably a Domain administrator) account. 0X800706BA The remote host has a firewall configured. This feeling 1. To turn off the default firewall for Windows XP machines: Conditions are mainly in Windows XP (SP 2) 1. Select Start > Run to acknowledge that the firewall is open. 2. Enter firewall.cpl and click OK 3. In the usual page sign, click Close 4. Click OK 2. If the firewall cannot be opened, open

Article 5: Learn about the historical reasons behind the _ com_ptr_t Design_ Com_ptr_t is a proprietary template class of Microsoft in VC. It encapsulates the QueryInterface (), AddRef (), and Release () operations of IUnknown, and provides some member functions to operate COM interface pointers. At the same time, _ com_ptr_t also simplifies the operations of the COM interface on reference count and query operations between different interfaces. To use the smart pointer _ com_ptr_t, you must fir

type. Sometimes, we usually consider the portability and compatibility of a class when considering its design. This leads us to exercise caution when using compiler-related features. Or more often, we can avoid some of the features that the compiler brings to us to pursue portability and compatibility with different platforms. However, before considering these problems, we should first consider the proper execution of the program. A program that allows errors, even if it can be transplanted at

Grid (1) Geometric Information The ID3DXBaseMesh Interface contains a vertex cache (used to store grid vertices) and an index cache (used to determine how a vertex forms a mesh of triangle units ). HRESULT ID3DXMesh: GetVertexBuffer (LPDIRECT3DVERTEXBUFFER9 * ppVB ); HRESULT ID3DXMesh: GetIndexBuffer (LPDIRECT3DINDEXBUFFER9 * ppIB ); Example: Code highlighting produced by Actipro CodeHighlighter (freeware)h

* cshtmlreport: gettabledispatch (){Assert (m_phtmldoc2 );Ihtmlelementcollection * All;M_phtmldoc2-> get_all ( all );Idispatch * distable;All-> item (colevariant (m_strtablename), colevariant (short (0), distable );Ihtmltable * pitable = NULL;Hresult hR = distable-> QueryInterface (iid_ihtmltable, (void **) pitable); // get table dispatchAssert (hR = s_ OK );Return pitable;} //************************************** *****************// Insert a row

) implements both these interfaces. Both the interfaces are shown below. interface IConnectionPointContainer : IUnknown { HRESULT EnumConnectionPoints( IEnumConnectionPoints **ppEnum) = 0; HRESULT FindConnectionPoint(REFIID riid, IConnectionPoint **ppCP) = 0;};interface IConnectionPoint : IUnknown { HRESULT GetConnectionInterface(IID *pIID) = 0;

following GitHub. Https://github.com/UnaNancyOwen/Kinect2SampleFigure 2 Data acquisition process for Kinect SDK v2 Preview (re-send ) "sensor"Get "sensor"//Sensorikinectsensor* Psensor; ......1HRESULT HRESULT=S_ok;hresult= Getdefaultkinectsensor (psensor); ......2if(FAILED (HResult)) {Std::cerr"Error:getdefaultkinectsensor"Std::endl; return-1;}