[vankul]

Tengo el siguiente código que funciona bien con archivos .bmp pero no con los .jpg, me gustaría que alguien me ayudara:

void __fastcall TForm1::Button1Click(TObject *Sender)
{
    String dir = "C:";
    if (SelectDirectory("Elige carpeta:","",dir)) {
        FileListBox1->Directory = dir;
        FileListBox1->ItemIndex = 0;
        for (int i = 0; i < FileListBox1->Count; i++) {
            lis->Add(FileListBox1->FileName);
            FileListBox1->ItemIndex++;
        }
        if (lis->Count>0) {
            Graphics::TBitmap* resBmp;
            TJPEGImage *ImagenJpg = new TJPEGImage();
            TListItem *Item;
            String extension;
            for (int i = 0; i < lis->Count; i++) {
                extension = ExtractFileExt(lis->Strings[i]);
                if ((extension.UpperCase()==".JPG")||(extension.UpperCase()==".JPEG")){
                    ImagenJpg->LoadFromFile(lis->Strings[i]);
                    resBmp->Height = ImageList1->Height;
                    resBmp->Width = ImageList1->Width;
                    ImageList1->Masked = false;
                    ImagenJpg->DIBNeeded();
                    resBmp->Assign(ImagenJpg);
                    ImageList1->Add(resBmp,NULL);
                    Item = ListView1->Items->Add();
                    Item->Caption = ExtractFileName(lis->Strings[i]);
                    Item->ImageIndex = i;

                }
                else {
                    if (extension.UpperCase()==".BMP") {
                        resBmp = new Graphics::TBitmap();
                        resBmp->Height = ImageList1->Height;
                        resBmp->Width = ImageList1->Width;
                        ImageList1->Masked = false;
                        resBmp->LoadFromFile(lis->Strings[i]);
                        ImageList1->Add(resBmp,NULL);
                        Item = ListView1->Items->Add();
                        Item->Caption = ExtractFileName(lis->Strings[i]);
                        Item->ImageIndex = i;
                    }
                }
            }
        }
        else {
            ShowMessage("No hay archivos válidos en el directorio.");
        }
    }
}