VC中如何得到是谁发出了BN_CLICKED 消息?

[zhaoleixin]

当单击按钮时,产生BN_CLICKED消息,但函数无参数,怎样得到如下帮助所说的:WPARAM wParam
LPARAM lParam;我关键是想得到谁发出了这个消息(单击哪个):


BN_CLICKED Notification

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The BN_CLICKED notification code is sent when the user clicks a button.

The parent window of the button receives the BN_CLICKED notification code through the WM_COMMAND message.


Syntax

BN_CLICKED

WPARAM wParam
LPARAM lParam;

Parameters

wParam
The low-order word contains the button's control identifier. The high-order word specifies the notification message.
lParam
Handle to the button.
Return Value

No return value.
Remarks

A disabled button does not send a BN_CLICKED notification message to its parent window.

Notification Requirements

Minimum DLL Version None
Header Declared in Winuser.h, include Windows.h
Minimum operating systems Windows 95, Windows NT 3.1

[viewerviewer]

重载：

BOOL CTestDlg::OnCommand(WPARAM wParam, LPARAM lParam)
{
// TODO: Add your specialized code here and/or call the base class

TRACE("%d, %d\n", wParam, lParam);
return CDialog::OnCommand(wParam, lParam);
}

[快乐鹦鹉]

The parent window of the button receives the BN_CLICKED notification code through the WM_COMMAND message.
就是说，响应父窗口的WM_COMMAND事件。该事件能有如下参数：
HWND hwnd, // handle to window
UINT uMsg, // WM_COMMAND
WPARAM wParam, // notification code and identifier
LPARAM lParam // handle to control (HWND)
当uMsg是BN_CLICKED时，后面的两个就是参数了。

[goodboyws]

lParam就是

[力为]

wParam
The low-order word contains the button's control identifier. The high-order word specifies the notification message.
lParam
Handle to the button.
---------------
这两句说明白了呀
要ID有ID，要Handle有Handle

[Atry]

楼上已经说得很清楚了，我补充以下，金山词霸 程序员必备……