Alterando o papel de parede

Program wallpapr;

uses Registry, WinProcs;

procedure SetWallpaper(sWallpaperBMPPath : String; bTile : boolean );
var
reg : TRegIniFile;
begin
// Mudando o Registro HKEY_CURRENT_USER
// Control PanelDesktop
// TileWallpaper (REG_SZ)
// Wallpaper (REG_SZ)
reg := TRegIniFile.Create('Control PanelDesktop' );
with reg do begin
WriteString( '', 'Wallpaper',sWallpaperBMPPath );
if( bTile )then begin
WriteString( '', 'TileWallpaper', '1' );
end else begin
WriteString( '', 'TileWallpaper', '0' );
end;
end;
reg.Free;
// Mostrar que o parametro do sistema foi alterado
SystemParametersInfo( SPI_SETDESKWALLPAPER,0, Nil, SPIF_SENDWININICHANGE );
end;
begin
SetWallpaper( 'c:winntwinnt.bmp', False );
end.