取消左上角的關閉事件執行

privatevoidForm1_Closing(objectsender,System.ComponentModel.CancelEventArgse)

{

e.Cancel=true;

}

protectedoverridevoidOnClosing(CancelEventArgse)

{

this.ShowInTaskbar=false;

this.WindowState=FormWindowState.Minimized;

e.Cancel=true;

}

擴充套件資料

privateconstintCP_NOCLOSE_BUTTON=0x200;

protectedoverrideCreateParamsCreateParams

{

get

{

CreateParamsmyCp=base.CreateParams;

myCp.ClassStyle=myCp.ClassStyle|CP_NOCLOSE_BUTTON;

returnmyCp;

}

}