关于OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)问题，UP有分!!!!!

[uuwcl]

关于OnKeyDown
void CTest001View::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
//todo

}

请问具体三个变量作用？？

在按下“回车键”，“左移光标健”，“右移光标健”，“上移光标健”，“下移光标健” 时怎样写函数！

[LookSail]

哈哈，我也正想问这个问题，多谢你先问了

[saucer]

switch (nChar)
{
case VK_LEFT:
...
break;
case VK_RIGHT:
...
break;
case VK_UP:
...
break;
case VK_DOWN:
...
break;
case VK_RETURN:
...
break;
}

[saucer]

from
http://msdn.microsoft.com/library/en-us/vclib/html/_mfc_cwnd.3a3a.onkeydown.asp?frame=true


nChar
Specifies the virtual key code of the given key. For a list of of standard virtual key codes, see Winuser.h

nRepCnt
Repeat count (the number of times the keystroke is repeated as a result of the user holding down the key).

nFlags
Specifies the scan code, key-transition code, previous key state, and context code

[seaymx]

nChar:
Specifies the virtual-key code of the given key.
nRepCnt:
Repeat count (the number of times the keystroke is repeated as a result of the user holding down the key).
nFlags:
Specifies the scan code, key-transition code, previous key state, and context code, as shown in the following list:
要用“回车键”，“左移光标健”，“右移光标健”，“上移光标健”，“下移光标健”这几个键，你可以在这样：
void YourClass::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
switch(nChar)
{
case vk_return;
//your code
case vk_right：
//your code
case vk_left:
//
case vk_up:
//
case vk_down:
//
}

//then do not forget to call baseclass
CBaseClass::OnKeyDown(nChar,nRepCnt,nFlags)
}

[zzitmf]

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