嗯。没错。The LineDDA function determines which pixels should be highlighted for a line defined by the specified starting and ending points. BOOL LineDDA( int nXStart, // x-coordinate of starting point int nYStart, // y-coordinate of starting point int nXEnd, // x-coordinate of ending point int nYEnd, // y-coordinate of ending point LINEDDAPROC lpLineFunc, // callback function LPARAM lpData // application-defined data );The LineDDAProc function is an application-defined callback function used with the LineDDA function. It is used to process coordinates. The LINEDDAPROC type defines a pointer to this callback function. LineDDAProc is a placeholder for the application-defined function name. VOID CALLBACK LineDDAProc( int X, // x-coordinate of point int Y, // y-coordinate of point LPARAM lpData // application-defined data );
int nXStart, // x-coordinate of starting point
int nYStart, // y-coordinate of starting point
int nXEnd, // x-coordinate of ending point
int nYEnd, // y-coordinate of ending point
LINEDDAPROC lpLineFunc, // callback function
LPARAM lpData // application-defined data
);The LineDDAProc function is an application-defined callback function used with the LineDDA function. It is used to process coordinates. The LINEDDAPROC type defines a pointer to this callback function. LineDDAProc is a placeholder for the application-defined function name. VOID CALLBACK LineDDAProc(
int X, // x-coordinate of point
int Y, // y-coordinate of point
LPARAM lpData // application-defined data
);