Question

Currently, I’m using WinAPI in a c# project that deal with Dual-Screen configurations. My question is really simple: how to get the list of all window handle that are about 75% of their size on a specific monitor?

Best regards,

Answer 1

To get the screen with the largest portion of the window you can use this:

System.Windows.Forms.Screen screen = System.Windows.Forms.Screen.FromHandle(form.Handle);

Then you just have to calculate how many % there is on this screen.

Rectangle screenBounds = screen.Bounds;
Rectangle formBounds = form.Bounds;


Rectangle intersection = formBounds.Intersect(screenBounds);
int formArea = formBounds.Width * formBounds.Height;
int intersectArea = intersection.Width * intersection.Height;

int percent = intersectArea * 100 / formArea;