How to move a window or form without titlebar
March 14, 2013 by Anuraj
.Net Win 32 API Windows Forms
In my current project I had to implement move for a Form, which doesn’t have a title bar or FormBorderStyle property set to None. Instead of title bar I was using a Panel with background Image. Here is the code snippet.
public const int WM_NCLBUTTONDOWN = 0xA1;
public const int HT_CAPTION = 0x2;
[DllImportAttribute("user32.dll")]
public static extern int SendMessage(IntPtr hWnd, int Msg,
int wParam, int lParam);
[DllImportAttribute("user32.dll")]
public static extern bool ReleaseCapture();
private void TitlePanel_MouseDown(object sender, MouseEventArgs e)
{
ReleaseCapture();
SendMessage(Handle, WM_NCLBUTTONDOWN, HT_CAPTION, 0);
}As it is WIN32 API call, you need to import System.Runtime.InteropServices namespace.
If you find my content helpful, consider supporting my work. Your support helps me continue creating valuable resources for the community.
Found this useful? Share it with your network!
Copyright © 2025 Anuraj. Blog content licensed under the Creative Commons CC BY 2.5 | Unless otherwise stated or granted, code samples licensed under the MIT license. This is a personal blog. The opinions expressed here represent my own and not those of my employer. Powered by Jekyll. Hosted with ❤ by GitHub