msdn文档中关于ScrollWindow最后一个参数
CONST RECT *lpClipRect
Pointer to the RECT structure containing the coordinates of the clipping rectangle. Only device bits within the clipping rectangle are affected. Bits scrolled from the outside of the rectangle to the inside are painted; bits scrolled from the inside of the rectangle to the outside are not painted.什么叫做“outside of the rectangle to the inside”“inside of the rectangle to the outside”到底要怎么理解在句话?他想要表达什么意思??
CONST RECT *lpClipRect
Pointer to the RECT structure containing the coordinates of the clipping rectangle. Only device bits within the clipping rectangle are affected. Bits scrolled from the outside of the rectangle to the inside are painted; bits scrolled from the inside of the rectangle to the outside are not painted.什么叫做“outside of the rectangle to the inside”“inside of the rectangle to the outside”到底要怎么理解在句话?他想要表达什么意思??
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from the outside of the rectangle to the inside of the rectangle
from the inside of the rectangle to the outside of the rectangle