C # Interface design, add a borderless form of the mouse drag to move the effect

Add a variable at the beginning:

Point mouseoff;//mouse Move position variable

BOOL leftflag;//whether the label is left button

Event section:

1  Private voidLogin_mousemove (Objectsender, MouseEventArgs e)2         {3             //Mouse Pointing detection4             if(Leftflag)5 6             {7 8Point Mouseset =control.mouseposition;9 TenMouseset.offset (mouseoff.x, MOUSEOFF.Y);//set the position after the move One  ALocation =Mouseset; -  -             } the             // -         } -  -         Private voidLogin_mouseup (Objectsender, MouseEventArgs e) +         { -  +             if(Leftflag) A  at             { -  -Leftflag =false;//label false after releasing the mouse; -  -             } -         } in  -         Private voidLogin_mousedown (Objectsender, MouseEventArgs e) to         { +             if(E.button = =mousebuttons.left) -  the             { *  $Mouseoff =NewPoint (-e.x,-e.y);//get the value of a variablePanax Notoginseng  -Leftflag =true;//Click on the left button when the label is true; the  +             } A}

PS: A very common string of characters.

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C # Interface design, add a borderless form of the mouse drag to move the effect