IIXC_Page::Rop3 Method

Images Core Layer > Interfaces > IIXC_Page > IIXC_Page::Rop3 Method

The Rop3 method combines up to three images in different ways using the raster operations codes (ROP3).

Syntax

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HRESULT Rop3([in]  RECT*       stRect,

[in]  IIXC_Page*  pSrcFrom,

[in]  LONG        nSrcX,

[in]  LONG        nSrcY,

[in]  ULONG       nSrcColor,

[in]  IIXC_Page*  pPattern,

[in]  LONG        nPatX,

[in]  LONG        nPatY,

[in]  ULONG       nPatColor,

[in]  UCHAR       nRopCode,

[in]  ULONG       nFlags);

Parameters

stRect

[in] Pointer to RECT specifies the rectangular area on the destination page which will be affected. If NULL then the entire page will be used.

pSrcFrom

[in] Specifies the IIXC_Page of the source page. This parameter can be NULL (see Comments for details).

nSrcX

[in] Specifies the x-coordinate of the left-top corner of the affected rectangle in the source page.

nSrcY

[in] Specifies the y-coordinate of the left-top corner of the affected rectangle in the source page.

nSrcColor

[in] Specifies the color which should be used if pSource is NULL.

pPattern

[in] Specifies the IIXC_Page of the pattern page. This parameter can be NULL (see Comments for details).

nPatX

[in] Specifies the x-coordinate of the left-top corner of the affected rectangle in pattern page.

nPatY

[in] Specifies the y-coordinate of the left-top corner of the affected rectangle in pattern page.

nPatColor

[in] Specifies the color which should be used if pPattern is NULL.

nRopCode

[in] Specifies a ternary raster-operation value. This value determines how BitBlt combines corresponding pixels from the source, destination, and pattern that is used to produce the final pixels in the destination rectangle. This parameter can be any one of 256 ternary raster-operation values; the following lists the most common values:

Constant	Value	Meaning
SRCCOPY	0xCC = 0xCC Destination = Source	Copies source bits to the destination rectangle
SRCPAINT	0xAA Destination = Source | Destination	Combines the source and destination bits using the bitwise OR operator
SRCAND	0x88 = 0xCC & 0xAA Destination = Source & Destination	Combines the source and destination bits using the bitwise AND operator
SRCINVERT	0x66 = 0xCC ^ 0xAA Destination = Source ^ Destination	Combines the source and destination bits using the bitwise exclusive OR operator
SRCERASE	0x44 = 0xCC & (~0xAA) Destination = Source & (~ Destination)	Combines the source and inverse of destination bits using the bitwise AND operator
NOTSRCCOPY	0x33 = ~0xAA Destination = ~ Destination	Copies the inverse of the destination bits to the destination rectangle
NOTSRCERASE	0x11 = (~0xCC) & (~0xAA) Destination = (~ Source) & (~ Destination)	Combines the inverse of the source and destination bits using the bitwise AND operator
MERGECOPY	0xC0 = 0xCC & 0xF0 Destination = Source & pPattern	Combines the source and pattern bits using the bitwise AND operator
MERGEPAINT	0xAA Destination = (~ Source) | Destination	Combines the destination and inverse of the source bits using the bitwise OR operator
PATCOPY	0xF0 = 0xF0 Destination = pPattern	Copies the pattern bits to the destination rectangle
PATPAINT	0x0F | 0xAA Destination = (~ Source) | pPattern | Destination	Combines the destination, pattern, and the inverse of source bits using the bitwise OR operator
PATINVERT	0x5A = 0xF0 ^ 0xAA Destination = pPattern ^ Destination	Combines the pattern and destination bits using the bitwise exclusive OR operator
DSTINVERT	0x55 = ~0xAA Destination = ~ Destination	Copies the inverse of the destination bits
BLACKNESS	0x00	Set all destination bits to black
WHITENESS	0xFF	Set all bits to white

In this table Source was represented as 0xCC, Destination as 0xAA, and Pattern as 0xF0.

nFlags

[in] Combination of IXC_FilterFlags flags which specifies how the data will be processed.

Return Value

Returns S_OK if operation was successful or error code in other cases.

Remarks

Most raster operations combine all three pages - Destination, Source and Pattern, but some of them do not use Source or Pattern, or either of them. Also, sometimes Source or Pattern are "solid" pages filled by one color. So IMG_PageRop3 supports one extension - if Source or Pattern (or both) handles are NULL the corresponding color will be used for each pixel, instead of getting the pixel value from the page.

See Also

IIXC_Page