how to enlarge loaded texture on to the specified rectangle vertices?

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VisualC++

sir,

how will i enlarge the loaded the texture on a declared(defined ) rectangle vertices in vc++???

1)my rectangle is in,

int initdialog()
{
CRect rect(10,80,550,560);
{
m_jgpimage rect(NULL,rect,....)
}
}
2)upon this rect, i am loading texture.....
texture is loaded on rect...but my problem is to enlarge the texture without increasing CRect crect(..);
i know that texture depends on Crect rect(...)

sir is there any other option to enlarge loaded texture in vc++????