Thread: File Save

i have go the command that will allow me to save a file i would like to know how i can save it as a jpeg because if u just change the file extension when saving it it will not open again because the program still thinks it is a bmp

this is the code i have so far

Code:

void __fastcall TForm1::Save1Click(TObject *Sender)
{
    if(SavePictureDialog1->Execute()){
        imgImage->Picture->SaveToFile("Name");
        }
}

Can anyone help with my problem?

Thanks