？如何判断当前是否在拖动窗体的标题栏？？
问题点数：20、回复次数：4Top
1 楼rh（花覆茅檐）回复于 2001-02-17 22:08:00 得分 0
捕获 MouseDownOnCaption
耶！昨天和今天的这个题目的帖子都是你发的吗？Top
2 楼Lin（林）回复于 2001-02-18 12:20:00 得分 20
2 rh:
MouseDownOnCaption，有吗？拜托啦。应该捕获WM_NCHITTEST消息才是。具体你可以看MSDN的帮助：
xPos = LOWORD(lParam); // horizontal position of cursor
yPos = HIWORD(lParam); // vertical position of cursor
Parameters
xPos
Value of the low-order word of lParam. Specifies the x-coordinate of the cursor. The coordinate is relative to the upper-left corner of the screen.
yPos
Value of the high-order word of lParam. Specifies the y-coordinate of the cursor. The coordinate is relative to the upper-left corner of the screen.
Return Values
The return value of the DefWindowProc function is one of the following values, indicating the position of the cursor hot spot
HTCAPTION 就是你想要的。
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3 楼Lin（林）回复于 2001-02-18 12:21:00 得分 0
2 rh:
MouseDownOnCaption，有吗？拜托啦。应该捕获WM_NCHITTEST消息才是。具体你可以看MSDN的帮助：
xPos = LOWORD(lParam); // horizontal position of cursor
yPos = HIWORD(lParam); // vertical position of cursor
Parameters
xPos
Value of the low-order word of lParam. Specifies the x-coordinate of the cursor. The coordinate is relative to the upper-left corner of the screen.
yPos
Value of the high-order word of lParam. Specifies the y-coordinate of the cursor. The coordinate is relative to the upper-left corner of the screen.
Return Values
The return value of the DefWindowProc function is one of the following values, indicating the position of the cursor hot spot
HTCAPTION 就是你想要的。
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4 楼Lin（林）回复于 2001-02-18 12:26:00 得分 0
2 rh:
MouseDownOnCaption，有吗？拜托啦。应该捕获WM_NCHITTEST消息才是。具体你可以看MSDN的帮助：
xPos = LOWORD(lParam); // horizontal position of cursor
yPos = HIWORD(lParam); // vertical position of cursor
Parameters
xPos
Value of the low-order word of lParam. Specifies the x-coordinate of the cursor. The coordinate is relative to the upper-left corner of the screen.
yPos
Value of the high-order word of lParam. Specifies the y-coordinate of the cursor. The coordinate is relative to the upper-left corner of the screen.
Return Values
The return value of the DefWindowProc function is one of the following values, indicating the position of the cursor hot spot
HTCAPTION 就是你想要的。
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