Borderless forms, user controls, timer controls

A. Borderless form
1 Maximize, minimize, and close button creation
is actually the change of the pre-click, point-and-click pictures

(1) Put the picture in the Debug folder,
Get the path to a picture
Application.startuppath + "\ \ Picture name. Type"
(2) If you put it in the folder,
Application.startuppath + "\ \". \\.. \\images\\ picture name. Type "

\.. \ folder name ... Turn up a folder, above the first \ is escaped

" \\1.png ");

2 form Moving up
Call the form to move the API, if there are other controls covering the form, then write the mouse down the event committee
You can do it.

//Form Mobile API[DllImport ("user32.dll")]         Public Static extern BOOLreleasecapture (); [DllImport ("user32.dll")]         Public Static extern BOOLSendMessage (INTPTR hwnd,intWmsg,intWParam,intIparam);  Public Const intWm_syscommand =0x0112;  Public Const intSc_move =0xf010;  Public Const intHtcaption =0x0002; [DllImport ("User32")]        Private Static extern intSendMessage (INTPTR hwnd,intWmsg,intWParam, IntPtr lParam); Private Const intWm_setredraw =0xB;//Remember: Be sure to select Form1_mousedown in the MouseDown event of the formPrivate voidForm1_mousedown (Objectsender, MouseEventArgs e) {            if( This. WindowState = =formwindowstate.normal) {releasecapture (); SendMessage ( This. Handle, Wm_syscommand, Sc_move + htcaption,0); }        }

3 Make a form shaded

//Shadows
Written above the constructor
        Private Const intCs_dropshadow =0x20000; Private Const intGcl_style = (- -); [DllImport ("user32.dll", CharSet =CharSet.Auto)] Public Static extern intSetclasslong (INTPTR hwnd,intNIndex,intDwnewlong); [DllImport ("user32.dll", CharSet =CharSet.Auto)] Public Static extern intGetclasslong (INTPTR hwnd,intNIndex); Written in the constructor Setclasslong ( This. Handle, Gcl_style, Getclasslong ( This. Handle, Gcl_style) | Cs_dropshadow);

Second, create the control in the background

(1) Create

            New PictureBox ();//Create a picture control, instantiate a picture control            //Set Picture
            " \\dota_img5.jpg " );             = Imagelayout.stretch;             New textbox ();//Create a TextBox control, instantiate            FLOWLAYOUTPANEL1.CONTROLS.ADD (p);//Put in            a collection of streaming layouts FLOWLAYOUTPANEL1.CONTROLS.ADD (TB);

(2) Changing control properties

 foreach  (Control ct in   Flowlayoutpanel1.controls) { if  (Ct is   textbox) {(textbox) CT). Text  =  123123   ";  }}  

Third, user control
1 is a user-defined control that is made up of other controls
The body of a user control is similar to a panel, but it is a separate class
2 Create
New item--user control--named (used as a panel)--into other controls, all internal
The control access permissions are modified.
Appears in the toolbox after creation is complete.
3 Use
Instantiate Yonghu yh=new Yonghu ();//yonghu is the name I created for me.
Assignment yh.textbox1.text= "";
Put in a flow-style layout
4 mouse events can be added to the user control and the controls in it
Iv. timer in the component:
Enabled-whether this control is enabled
Interval-interval time, milliseconds
Tick event-code snippet to execute after a specified time interval
A timer is a thread that, by default, can access objects across threads

Borderless forms, user controls, timer controls