LineDDAProc
A LineDDAProc
function is an application-defined callback function that processes coordinates
from the LineDDA
function. A value of type LINEDDAPROC is a pointer to such a function.
VOID CALLBACK LineDDAProc(
|
int X, |
// x-coordinate of
point being evaluated |
|
int Y, |
// y-coordinate of
point being evaluated |
|
LPARAM lpData |
// address of
application-defined data |
|
); |
|
Parameters
X
Specifies the
x-coordinate of the current point.
Y
Specifies the
y-coordinate of the current point.
lpData
Points to the
application-defined data.
Remarks
LineDDAProc is a placeholder for an application-defined function
name.
An
application registers a LineDDAProc function by passing its address to
the LineDDA
function.
See Also