2.2.2.2.1.1.1.6 Binary Raster Operation (ROP2_OPERATION)
The ROP2_OPERATION structure is used to define how the bits in a destination bitmap and a selected brush or pen are combined by using Boolean operators.
|
|
|
|
|
|
|
|
|
|
1 |
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
|
3 |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
rop2Operation |
|||||||||||||||||||||||||||||||
rop2Operation (1 byte): An 8-bit, unsigned integer. A raster-operation code that describes a Boolean operation, in Reverse Polish Notation, to perform on the bits in a destination bitmap (D) and selected brush or pen (P). This operation is a combination of the AND (a), OR (o), NOT (n), and XOR (x) Boolean operators.
-
Value
Meaning
R2_BLACK
0x01
0
R2_NOTMERGEPEN
0x02
DPon
R2_MASKNOTPEN
0x03
DPna
R2_NOTCOPYPEN
0x04
Pn
R2_MASKPENNOT
0x05
PDna
R2_NOT
0x06
Dn
R2_XORPEN
0x07
DPx
R2_NOTMASKPEN
0x08
DPan
R2_MASKPEN
0x09
DPa
R2_NOTXORPEN
0x0A
DPxn
R2_NOP
0x0B
D
R2_MERGENOTPEN
0x0C
DPno
R2_COPYPEN
0x0D
P
R2_MERGEPENNOT
0x0E
PDno
R2_MERGEPEN
0x0F
PDo
R2_WHITE
0x10
1
-
For example, by using the previous table, it can be determined that the R2_MERGEPEN (0x0F) operation replaces the values of the pixels in the destination bitmap with a combination of pixel values of the destination and pen.
-
For more information about binary raster operations, see the material on binary raster operations in [YUAN] section 8.1.