Status Bars Returning Empty Rectangles?

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MFC

general

In my SDI application, I create the status bar by using something like:

class CJBK_III_SB : public CMFCStatusBar
{
define# SB_STYLE   WS_CHILD | WS_VISIBLE | CBRS_BOTTOM | CBRS_TOOLTIPS | CBRS_FLYBY
.......
}

    CJBK_III_SB* p_SBCls = new CJBK_III_SB;
    ASSERT(p_SBCls->CreateEx(this, 0, SB_STYLE, nID));

Although the status bar looks and acts as expencted, when I call

p_StatusBar->GetClientRect(rcResult);

I get rcResult.x == rcResult.y == rcResult.top == rcResult.bottom == 0

p_StatusBar->GetWindowRect(rcResult); 

yields something like rcResult.top == rcResult.bottom == 150 and rcResult.left == rcResult.right == 0.

Can anyone please explain what this means and why?

Thanks,

Barry