centering context menu

[divideby0]

I'm trying to position a context menu within a listview control (report style) so that when an item is right clicked, the menu pops up just below the selected item.

Here's what I'm trying, but the menu is displayed well outside my application border.

int index = SendMessage(hndLV, LVM_GETNEXTITEM, -1, (LPARAM)LVNI_SELECTED);
 
if(index != -1) {
 
   ZeroMemory(&cRect, sizeof(RECT));
   cRect.left = LVIR_BOUNDS;
 
   SendMessage(hndLV, LVM_GETITEMRECT, (WPARAM)index, (LPARAM)&cRect);
 
   // create menu bits
 
   SetForegroundWindow(hwnd);
   TrackPopupMenu(hMenu, TPM_VCENTERALIGN, cRect.right / 2, cRect.bottom / 2, 0, hwnd, NULL);
 
   // bits of code
}
 

I've tried various styles for the TrackPopupMenu function, but none seem to affect the position where I'd like it to be.

The index and item rect *appear* to be right when their values were printed out; however, the placement of the menu is way off. It seems more relative to the screen than the application.

How would I accomplish getting the menu within the bounds of the control?