DDHAL_LOCKDATA (Windows CE 5.0)
This structure contains information necessary to do a Lock operation as defined by DirectDraw's parameter structures. This structure passes the information to the DirectDraw hardware abstraction layer (DDHAL) Lock callback function.
typedef struct _DDHAL_LOCKDATA {LPDDRAWI_DIRECTDRAW_GBLlpDD;LPDDRAWI_DDRAWSURFACE_LCLlpDDSurface;DWORDbHasRect;RECTLrArea;LPVOIDlpSurfData;HRESULTddRVal;LPDDHALSURFCB_LOCKLock;DWORDdwFlags;} DDHAL_LOCKDATA;
Members
lpDD**
Pointer to the DDRAWI_DIRECTDRAW_GBL structure that represents the DirectDraw object.lpDDSurface**
Pointer to the DDRAWI_DDRAWSURFACE_LCL structure that represents the DirectDrawSurface object.bHasRect**
Specifies whether the area (rArea) is valid or not.rArea**
Specifies the area being locked.lpSurfData**
Pointer to a surface memory.ddRVal**
Passes the DirectDraw return values.Lock**
This member is used by DirectDraw and should not be filled in by the driver.dwFlags**
DDLOCK flags.The following table shows the possible flags.
Flag Description DDLOCK_EVENT Reserved for future use. DDLOCK_READONLY Specifies the surface being locked will only be read from. DDLOCK_SURFACEMEMORYPTR Indicates that an application's Lock should return a valid memory pointer to the top of the specified rectangle. If no rectangle is specified, a pointer to the top of the surface is returned. This is the default. DDLOCK_WAIT Used by DirectDraw and should not be filled in by the driver. DDLOCK_WRITEONLY Specifies the surface being locked will only be written to.
Requirements
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Ddrawi.h.
See Also
Lock | DDRAWI_DIRECTDRAW_GBL | DDRAWI_DDRAWSURFACE_LCL | DirectDrawSurface Structures
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