h="50%" rowspan="2" style="background:LightYellow;">  NPPM_GETPOSFROMBUFFERID
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<td width="10%" style="background:khaki"> wParam:
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<td>  [in] int bufferID
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<td width="10%" style="background:khaki"> lParam:
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<td>  0
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<td colspan="3" style="background:#E8F8E8;">  Get 0-based document position from given buffer ID, which is held in the 30 lowest bits of the return value on success.
<p>If bufferID doesn't exist, -1 is returned. Otherwise, the index part is valid, and 