OffsetViewportOrg

Syntax

DWORD OffsetViewportOrg(hDC,X,Y)

This function modifies the viewport origin relative to the current values. The formulas are written as follows:

xNewVO = xOldVO + X
yNewVO = yOldVO + Y

The new origin is the sum of the current origin and the X and Y values.

Parameter

Type/Description

hDC	HDC Identifies the device context.
X	int Specifies the number of device units to add to the current origin's x-coordinate.
Y	int Specifies the number of device units to add to the current origin's y-coordinate.

Return Value

The return value specifies the previous viewport origin (in device coordinates). The previous y-coordinate is in the high-order word; the previous x-coordinate is in the low-order word.