Makes a Windows Form Application program movable when user drags any part of the form.

README.md

Makes a Windows Form Application program movable when user drags any part of the form.

Just copy and paste the FormMove.cs file's content from this gist into your form's Form1.cs file in your solution that you wanna make movable.

Read More:

• https://stackoverflow.com/questions/1592876/make-a-borderless-form-movable
• https://stackoverflow.com/questions/6981006/problems-with-moving-window

FormMove.cs

namespace WindowsFormApplication1 {
    public partial class Form1: Form {
        public Form1() {
            InitializeComponent();
        }

    public const int WM_NCLBUTTONDOWN = 0xA1;
    public const int HT_CAPTION = 0x2;

    [System.Runtime.InteropServices.DllImport("user32.dll")]
    public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);
    [System.Runtime.InteropServices.DllImport("user32.dll")]
    public static extern bool ReleaseCapture();

    private void FormMove(object sender, MouseEventArgs e) {
        if (e.Button == MouseButtons.Left) {
           this.Cursor = Cursors.SizeAll;
            ReleaseCapture();
            SendMessage(Handle, WM_NCLBUTTONDOWN, HT_CAPTION, 0);
            this.Cursor = Cursors.Arrow;
        }
    }
}