Question

I used to see that a program could embed a calendar right into the desktop, and the calendar is interactive, all ‘show desktop’ operations including will not hide it.

I wonder how I can achieve that? Thank you.

Answer 1

use the following code and pass the window handle to the function while form load hope fully this resolves your problem

public void SetFormOnDesktop(IntPtr hwnd) {    
IntPtr hwndf = hwnd;  
IntPtr hwndParent = FindWindow("ProgMan", null);  
SetParent(hwndf, hwndParent);  
}