GPEBltParms (Windows Embedded CE 6.0)

1/6/2010

This structure controls blit operations for GPE and display drivers. Some of the members of GPEBltParms come from applications, while GPE calculates and sets the rest.

Syntax

struct GPEBltParms {
  SCODE (GPE::* pBlt)(GPEBltParms* );
  GPESurf* pDst;
  GPESurf* pSrc;
  GPESurf* pMask;
  GPESurf* pBrush;
  RECTL* prclDst;
  RECTL* prclSrc;
  RECTL* prclClip;
  COLOR solidColor;
  unsigned long bltFlags;
  ROP4 rop4;
  RECTL* prclMask;
  POINTL* pptlBrush;
  int xPositive;
  int yPositive;
  unsigned long* pLookup; 
  unsigned long (ColorConverter::* pConvert)(unsigned long);
  ColorConverter* pColorConverter;
  int iMode;
  BLENDFUNCTION blendFunction;
  GenBltSignature bltSig;
};

Members

• pBlt
  Pointer to a function that will perform the blit operation.

• pDst
  Pointer to the destination surface.

• pSrc
  Pointer to the source surface.

• pMask
  Pointer to the mask surface.

• pBrush
  Pointer to the surface containing the brush.

• prclDst
  Rectangle describing which portion of the destination surface to use.

• prclSrc
  Rectangle describing which portion of the source surface to use.

• prclClip
  Pointer to a clipping rectangle defined by the application.

• solidColor
  Color to use for solid color fill blits. If the blit is a pattern fill, this should be set to –1.

• bltFlags
  Blit operations to perform.

• rop4
  ROP value for the blit.

• prclMask
  Rectangle describing which portion of the mask surface to use.

• pptlBrush
  Pointer to a POINTL brush.

• xPositive
  Positive number if the x-coordinate of the display surface increases from left to right.

• yPositive
  Positive number if the y-coordinate of the display surface increases from top to bottom.

• pLookup
  Pointer to an array of color references which correspond to the palette entries. This is for source to palette color conversions.

• pConvert
  Pointer to a function that handles color conversions.

• pColorConverter
  Pointer to a color converter class.

• iMode
  Mode to be used for StretchBlt. This value corresponds to the value set by SetStretchBltMode.

• blendFunction
  Operation to use for AlphaBlend

• bltSig
  64-bit encoding of other GPEBltParms members

Requirements

See Also

Reference

Display Driver Structures

Other Resources

Display Drivers