1   
2   //This example hides and shows the start button
3   
4   #include <vcl.h>
5   #pragma hdrstop
6   
7   #include "Unit1.h"
8   //---------------------------------------------------------------------------
9   #pragma package(smart_init)
10  #pragma resource "*.dfm"
11  TForm1 *Form1;
12  //---------------------------------------------------------------------------
13  __fastcall TForm1::TForm1(TComponent* Owner)
14          : TForm(Owner)
15  {
16  }
17  //---------------------------------------------------------------------------
18  
19  void TForm1::HideShowStart(bool bDisplay)
20  {
21  HWND hWndManager;
22  HWND Child;
23  hWndManager = FindWindow("Shell_TrayWnd",NULL);
24  Child = GetWindow(hWndManager, GW_CHILD);
25          if (bDisplay==true){
26          ShowWindow(Child, 1);//shows start button
27          }
28          else{
29          ShowWindow(Child, 0) ;//hides start button
30          }
31  }
32  //---------------------------------------------------------------------------
33  void __fastcall TForm1::Button1Click(TObject *Sender)
34  {
35  HideShowStart(true);
36  }
37  //---------------------------------------------------------------------------
38  
39  void __fastcall TForm1::Button2Click(TObject *Sender)
40  {
41  HideShowStart(false);
42  }
43  //---------------------------------------------------------------------------