procedure TForm1.Button1Click(Sender: TObject); var reg:TRegistry; i:Integer; begin i:=self.ComboBox1.ItemIndex; if i=-1 then Exit; Reg:=Tregistry.Create;{创建Tregistry对象的实例} Reg.Rootkey:= Hkey_Current_User;{设置根键名称} Reg.OpenKey('Control Panel\Desktop',False); if i=0 then//居中 begin Reg.WriteString ('TileWallPaper',IntToStr(i)); reg.WriteString('WallpaperStyle',IntToStr(i)); end; if i=1 then//平铺 begin Reg.WriteString ('TileWallPaper',IntToStr(i)); reg.WriteString('WallpaperStyle',IntToStr(i)); end; if i=2 then//拉伸 begin Reg.WriteString ('TileWallPaper','0'); reg.WriteString('WallpaperStyle','2'); end; Systemparametersinfo(SPI_SETDESKWallpaper,0,Nil,SPIF_SendChange);{向Windows发送消息,通知Windows更换壁纸} Reg.CloseKey;{将更改内容写入注册表并关闭} Reg.Free;{释放对象} end;
1、我是修改桌面图片。。我照着Xp的做了一个。主要是Image。。的属性不会设置。2、RzColorEdit为何物,我百度一下没发现我是这么写的,效果太失败了。。 procedure TForm1.ComboBox1Change(Sender: TObject); begin if combobox1.Text='平铺' then begin image2.Center:=true; image2.stretch:=false; image2.Proportional:=false; end; if combobox1.Text='居中' then begin image2.Center:=false; image2.stretch:=false; image2.Proportional:=true; end; if combobox1.Text='拉伸' then begin image2.Center:=false; image2.stretch:=true; image2.Proportional:=false; end; end;
2.可以使用第三方控件RzColorEdit
procedure TForm1.Button1Click(Sender: TObject);
var
reg:TRegistry;
i:Integer;
begin
i:=self.ComboBox1.ItemIndex;
if i=-1 then
Exit;
Reg:=Tregistry.Create;{创建Tregistry对象的实例}
Reg.Rootkey:= Hkey_Current_User;{设置根键名称}
Reg.OpenKey('Control Panel\Desktop',False);
if i=0 then//居中
begin
Reg.WriteString ('TileWallPaper',IntToStr(i));
reg.WriteString('WallpaperStyle',IntToStr(i));
end;
if i=1 then//平铺
begin
Reg.WriteString ('TileWallPaper',IntToStr(i));
reg.WriteString('WallpaperStyle',IntToStr(i));
end;
if i=2 then//拉伸
begin
Reg.WriteString ('TileWallPaper','0');
reg.WriteString('WallpaperStyle','2');
end;
Systemparametersinfo(SPI_SETDESKWallpaper,0,Nil,SPIF_SendChange);{向Windows发送消息,通知Windows更换壁纸}
Reg.CloseKey;{将更改内容写入注册表并关闭}
Reg.Free;{释放对象}
end;
1、我是修改桌面图片。。我照着Xp的做了一个。主要是Image。。的属性不会设置。2、RzColorEdit为何物,我百度一下没发现我是这么写的,效果太失败了。。
procedure TForm1.ComboBox1Change(Sender: TObject);
begin
if combobox1.Text='平铺' then
begin
image2.Center:=true;
image2.stretch:=false;
image2.Proportional:=false;
end;
if combobox1.Text='居中' then
begin
image2.Center:=false;
image2.stretch:=false;
image2.Proportional:=true;
end;
if combobox1.Text='拉伸' then
begin
image2.Center:=false;
image2.stretch:=true;
image2.Proportional:=false;
end;
end;