C # implement drag without border form Form

Drag the borderless form to any desktop location

First, create a Windows application.Program

Set the formborderstyle attribute of form1 to Noe.

 

Place the create control Panel1 In the title bar

 

Code

Point mouseoff; // Move the location variable with the mouse
Bool Leftflag; // Left button for tag

Private   Void Panelappsmousedown ( Object Sender, mouseeventargs E)
{
If (E. Button = Mousebuttons. Left)
{
Mouseoff =   New Point ( - E. X, - E. y ); // Get the variable value
Leftflag =   True ; // Click the left button to press the time mark to true;
}
}

Private   Void Panelease mousemove ( Object Sender, mouseeventargs E)
{
If (Leftflag)
{
Point mouseset = Control. mouseposition;
Mouseset. offset (mouseoff. X, mouseoff. y ); // Set the location after the move
Location = Mouseset;
}
}

Private   Void Panelease mouseup ( Object Sender, mouseeventargs E)
{
If (Leftflag)
{
Leftflag =   False ; // When the mouse is released, mark it as false;
}
}

 

 

You can achieve it.