int SetROP2( int nDrawMode );
nDrawMode
Specifies the new drawing mode. It can be any one of the following values:
| Value | Meaning |
| R2_BLACK | Pixel is always black. |
| R2_WHITE | Pixel is always white. |
| R2_NOP | Pixel remains unchanged. |
| R2_NOT | Pixel is the inverse of the display color. |
| R2_COPYPEN | Pixel is the pen color. |
| R2_NOTCOPYPEN | Pixel is the inverse of the pen color. |
| R2_MERGEPENNOT | Pixel is a combination of the pen color and the inverse of the display color. |
| R2_MASKPENNOT | Pixel is a combination of the colors common to both the pen and the inverse of the display. |
| R2_MERGENOTPEN | Pixel is a combination of the display color and the inverse of the pen color. |
| R2_MASKNOTPEN | Pixel is a combination of the colors common to both the display and the inverse of the pen. |
| R2_MERGEPEN | Pixel is a combination of the pen color and the display color. |
| R2_NOTMERGEPEN | Pixel is the inverse of the R2_MERGEPEN color. |
| R2_MASKPEN | Pixel is a combination of the colors common to both the pen and the display. |
| R2_NOTMASKPEN | Pixel is the inverse of the R2_MASKPEN color. |
| R2_XORPEN | Pixel is a combination of the colors in the pen and in the display, but not in both. |
| R2_NOTXORPEN | Pixel is the inverse of the R2_XORPEN color. |
Sets the current drawing mode. The drawing mode specifies how the colors of the pen and the interior of filled objects are combined with the color already on the display surface.
Drawing modes are binary raster-operation codes, representing all possible Boolean functions of two variables, using the binary operations AND, OR, and XOR (exclusive OR), and the unary operation NOT.
The previous drawing mode. It can be any one of the values given in the Windows Software Development Kit documentation.
CDC::GetDeviceCaps, CDC::GetROP2, ::SetROP2