IDirectDrawClipper interface (ddraw.h)

Applications use the methods of the IDirectDrawClipper interface to manage clip lists. This section is a reference to the methods of this interface.

Inheritance

The IDirectDrawClipper interface inherits from the IUnknown interface. IDirectDrawClipper also has these types of members:

Methods

The IDirectDrawClipper interface has these methods.

IDirectDrawClipper::GetClipList Retrieves a copy of the clip list that is associated with a DirectDrawClipper object. To select a subset of the clip list, you can pass a rectangle that clips the clip list.
IDirectDrawClipper::GetHWnd Retrieves the window handle that was previously associated with this DirectDrawClipper object by the IDirectDrawClipper::SetHWnd method.
IDirectDrawClipper::Initialize Initializes a DirectDrawClipper object that was created by using the CoCreateInstance COM function.
IDirectDrawClipper::IsClipListChanged Retrieves the status of the clip list if a window handle is associated with a DirectDrawClipper object.
IDirectDrawClipper::SetClipList Sets or deletes the clip list that is used by the IDirectDrawSurface7::Blt, IDirectDrawSurface7::BltBatch, and IDirectDrawSurface7::UpdateOverlay methods on surfaces to which the parent DirectDrawClipper object is attached.
IDirectDrawClipper::SetHWnd Sets the window handle that the clipper object uses to obtain clipping information.

Remarks

The methods of the IDirectDrawClipper interface can be organized into the following groups:

Group	Methods
Allocating memory	Initialize
Clip list	GetClipList, IsClipListChanged, SetClipList, and SetHWnd
Handles	GetHWnd

 

You can use the LPDIRECTDRAWCLIPPER data type to declare a variable that contains a pointer to an IDirectDrawClipper interface. The Ddraw.h header file declares this data type with the following code:

typedef struct IDirectDrawClipper    FAR *LPDIRECTDRAWCLIPPER;

Requirements

Requirement	Value
Target Platform	Windows
Header	ddraw.h