C#位图“跟随”透明表单

Question

I have a transparent form by using

this.BackColor = Color.Wheat;
this.TransparencyKey = Color.Wheat;
this.TopMost = true;

Answer 1

I am not entirely sure if you meant the following:

int initial_x = 400, initial_y = 400;
Color color = Colors.Transparent;

if (this.Top >= 0 && this.Top < initial_x && this.Left >= 0 && this.Left < initial_y)
    color = Bitmap.GetPixel(initial_x - this.Top, initial_y - this.Left);