CDC::DPtoLP 

  • 项目

voidDPtoLP(LPPOINTlpPoints**,intnCount=1)const;**

voidDPtoLP(LPRECTlpRect**)const;**

voidDPtoLP(LPSIZElpSize**)const;**

Parameters

lpPoints

Points to an array of POINT structures or CPoint objects.

nCount

The number of points in the array.

lpRect

Points to a RECT structure or CRect object. This parameter is used for the simple case of converting one rectangle from device points to logical points.

lpSize

Points to a SIZE structure or CSize object.

Remarks

Converts device units into logical units. The function maps the coordinates of each point, or dimension of a size, from the device coordinate system into GDI’s logical coordinate system. The conversion depends on the current mapping mode and the settings of the origins and extents for the device’s window and viewport.

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See Also   CDC::LPtoDP, CDC::HIMETRICtoDP, , POINT, RECT, CDC::GetWindowExt, CDC::GetWindowOrg