GetROP2
The GetROP2
function retrieves the foreground mix mode of the specified device context. The
mix mode specifies how the pen or interior color and the color already on the
screen are combined to yield a new color.
int GetROP2(
|
HDC hdc |
// handle of device
context |
|
); |
|
Parameters
hdc
Identifies
the device context.
Return Values
If the
function succeeds, the return value specifies the foreground mix mode.
If the
function fails, the return value is zero.
Remarks
Following are
the foreground mix modes:
|
Mix mode |
Description |
|
R2_BLACK |
Pixel is
always 0. |
|
R2_COPYPEN |
Pixel is
the pen color. |
|
R2_MASKNOTPEN |
Pixel is a
combination of the colors common to both the screen and the inverse of the
pen. |
|
R2_MASKPEN |
Pixel is a
combination of the colors common to both the pen and the screen. |
|
R2_MASKPENNOT |
Pixel is a
combination of the colors common to both the pen and the inverse of the screen. |
|
R2_MERGENOTPEN |
Pixel is a
combination of the screen color and the inverse of the pen color. |
|
R2_MERGEPEN |
Pixel is a
combination of the pen color and the screen color. |
|
R2_MERGEPENNOT |
Pixel is a
combination of the pen color and the inverse of the screen color. |
|
R2_NOP |
Pixel
remains unchanged. |
|
R2_NOT |
Pixel is
the inverse of the screen color. |
|
R2_NOTCOPYPEN |
Pixel is
the inverse of the pen color. |
|
R2_NOTMASKPEN |
Pixel is
the inverse of the R2_MASKPEN color. |
|
R2_NOTMERGEPEN |
Pixel is
the inverse of the R2_MERGEPEN color. |
|
R2_NOTXORPEN |
Pixel is
the inverse of the R2_XORPEN color. |
|
R2_WHITE |
Pixel is
always 1. |
|
R2_XORPEN |
Pixel is a
combination of the colors in the pen and in the screen, but not in both. |
See Also