WS_CLIPSIBLINGS WS_OVERLAPPED WS_POPUP

来源：互联网发布：表格软件怎么固定编辑：程序博客网时间：2024/05/16 05:30

所有的overlapped窗口和popup窗口，都有WS_CLIPSIBLINGS 属性，
这些窗口不能在它的sibling窗口上绘图

对于child窗口，如果没有这个属性，它能在它的sibling窗口上绘图

                 +-----------+
                  |A             |
                  |   +--------+-------
                  |   |        |    B |
                  |   | C        |        |
                  +---+-------+       |
                      |                    |
                      +---------------+
如果A, B都是child窗口，
如果A具有WS_CLIPSIBLINGS属性，
那么A重绘时不会重绘C部分

clip是裁减，去除的意思相当与英文的Exclude

WS_OVERLAPPED    Creates an overlapped window. An overlapped window usually has a caption and a border

WS_POPUP Creates a pop-up window. Cannot be used with the WS_CHILD style.

WS_CHILD Creates a child window. Cannot be used with the WS_POPUP style.

WS_CLIPSIBLINGS Clips child windows relative to each other; that is, when a particular child window receives a paint message, the WS_CLIPSIBLINGS style clips all other overlapped child windows out of the region of the child window to be updated. (If WS_CLIPSIBLINGS is not given and child windows overlap, when you draw within the client area of a child window, it is possible to draw within the client area of a neighboring child window.) For use with the WS_CHILD style only.

转自：http://hi.baidu.com/obi_wan/blog/item/39e7865cd6470a44faf2c030.html