Question

大致讲讲visual C++多行编辑框SetSel、GetSel的用法,结合下面 SetSel（0，-1） GetSel（a,b） SetSel(c,d)

还没装msdn

Answer 1

先给你来段MSDN
CEdit::SetSel
Call this function to select a range of characters in an edit control.
void SetSel(
DWORD dwSelection,
BOOL bNoScroll = FALSE
);
void SetSel(
int nStartChar,
int nEndChar,
BOOL bNoScroll = FALSE
);

Parameters
dwSelection
Specifies the starting position in the low-order word and the ending position in the high-order word. If the low-order word is 0 and the high-order word is –1, all the text in the edit control is selected. If the low-order word is –1, any current selection is removed.
bNoScroll
Indicates whether the caret should be scrolled into view. If FALSE, the caret is scrolled into view. If TRUE, the caret is not scrolled into view.
nStartChar
Specifies the starting position. If nStartChar is 0 and nEndChar is –1, all the text in the edit control is selected. If nStartChar is –1, any current selection is removed.
nEndChar
Specifies the ending position.

追问

非常感谢
如果方便的话帮忙解释下ReplaceSel(str)

Answer 2

用MSDN，微软提供了最准确、详细的解释，要善于学习！

追问

不好意思，还没装MSDN，能不能帮忙解释一下