The XFORM structure specifies a world-space to page-space transformation. The eDx and eDy members specify the horizontal and vertical translation components, respectively. //未理解
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用SetWorldTransform(hdc,xform)将图形旋转任何角度?
xform.edx和xform.edy是什么含义阿? The XFORM structure specifies a world-space to page-space transformation. The eDx and eDy members specify the horizontal and vertical translation components, respectively. //未理解