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GPEBltParms (Compact 2013)

3/26/2014

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

Header

gpe.h

See Also

Reference

Display Driver Structures