public static extern bool WriteConsoleOutputW(
SafeFileHandle consoleFileHandle,
CharAndColor[] buffer,
COORD bufferWidthHeight,
COORD offsetXY,
ref ConsoleRegion consoleRegion
);
public static void SelfTest()
{
SafeFileHandle h = OpenConsole();
int width = Console.WindowWidth;
int height = Console.WindowHeight;
if (!h.IsInvalid)
{
CharAndColor[] buf = new CharAndColor[width * height];
ConsoleRegion rect = new ConsoleRegion()
{
StartX = 0, StartY = 0, EndX = (short)width, EndY = (short)height
};
var chars = Encoding.ASCII.GetBytes("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
var r = new Random(123);
for (int background = 550; background >= 0; background--)
{
for (short x = 0; x < width; x++)
{
for (short y = 0; y < height; y++)
{
int xy = y * width + x;
buf[xy].Attributes = SetColors(r.Next(16), 0);
buf[xy].Char.AsciiChar = chars[r.Next(chars.Length)];
}
}
// this is the flush, to flush a region of a buffer to the screen
bool b = WriteConsoleOutputW(h, buf,
new COORD()
{
X = (short)width, Y = (short)height
}, // buffer size
new COORD()
{
X = 0, Y = 0
}, // where on the actual console will we be writing.
ref rect);
}
}
}