C / C++ / MFC

<big>CDC::SetPixel </big>
COLORREF SetPixel( int x, int y, COLORREF crColor );

COLORREF SetPixel( POINT point, COLORREF crColor );

Return Value

An RGB value for the color that the point is actually painted. This value can be different
from that specified by crColor if an approximation of that color is used. If the function 
fails (if the point is outside the clipping region), the return value is -1.

Parameters

x

Specifies the logical x-coordinate of the point to be set.

y

Specifies the logical y-coordinate of the point to be set.

crColor

Specifies the color used to paint the point.

point

Specifies the logical x- and y-coordinates of the point to be set. You can pass either a 
POINT structure or a CPoint object for this parameter.

Remarks

Sets the pixel at the point specified to the closest approximation of the color specified by
crColor. The point must be in the clipping region. If the point is not in the clipping region, 
the function does nothing. 

Not all devices support the SetPixel function. To determine whether a device supports SetPixel,
call the GetDeviceCaps member function with the RASTERCAPS index and check the return value 
for the RC_BITBLT flag.

char *buf = "123.4";

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??
(doesn't work on NT)

<br />
// output "blah wibble someVar foo"<br />
<br />
cout << setformat("blah {1} {0} {2}") << "someVar" << "wibble" << "foo" << std::endl;<br />