1   
2   //---------------------------------------------------------------------------
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 __fastcall TForm1::Button1Click(TObject *Sender)
20  {
21   AnsiString sFile ="C:\\windows\\wall.bmp";
22  
23  if(SystemParametersInfo(SPI_SETDESKWALLPAPER, 0,sFile, SPIF_SENDWININICHANGE))
24  {
25  ShowMessage("Failed!");
26  }
27  else{
28  ShowMessage("Failed!");
29  }
30  }
31  //---------------------------------------------------------------------------