我在定义滚动条的WMHScroll和WMVScroll事件时,不明白Message.ScrollCode中的
SB_BOTTOM,SB_ENDSCROLL,SB_LINELEFT,SB_LINERIGHT,SB_PAGELEFT,SB_PAGERIGHT,
SB_THUMBPOSITION,SB_THUMBTRACK,SB_TOP,SB_LINEDOWN,SB_LINEUP,SB_PAGEDOWN,
SB_PAGEUP是什么意思,请问谁能帮我?特别是SB_THUMBPOSITION,SB_THUMBTRACK!
SB_BOTTOM,SB_ENDSCROLL,SB_LINELEFT,SB_LINERIGHT,SB_PAGELEFT,SB_PAGERIGHT,
SB_THUMBPOSITION,SB_THUMBTRACK,SB_TOP,SB_LINEDOWN,SB_LINEUP,SB_PAGEDOWN,
SB_PAGEUP是什么意思,请问谁能帮我?特别是SB_THUMBPOSITION,SB_THUMBTRACK!
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