SendMessage(WM_GETHOTKEY)怎么用?

sonny72 2008-03-16 09:45:39
我先把我遇到的问题说一下:
我的程序要调用另一个程序进行模拟操作,另一下程序是用VB写的,没有源代码,在其中一个窗口(ThunderRT6UserControlDC)下有五个按钮,我要点击这五个按钮以进行功能切换,但用SPY++是得不到它的句柄的,那个ThunderRT6UserControlDC窗口下是有五个子窗口,三个ThunderRT6CommandButton,二个ThunderRT6Timer,但是和那五个按钮没有关系,我通过一个叫MYSPY的软件可以找到那三个ThunderRT6CommandButton.
好在那五个按钮都有热键,分别是F1,F2,F3,F4,F5,但是我向那个ThunderRT6UserControlDC窗口发送热键没有一点反应,我发送热键代码如下:
API.PostMessage(hwnd, WM_KEYDOWN,(int)System.Windows.Forms.Keys.F1,null);
API.PostMessage(hwnd,WM_KEYUP,(int)System.Windows.Forms.Keys.F1,null);
我是用C#写的,我向记事本发送热键是能成功的,所以我想可能热键没有和那个ThunderRT6UserControlDC窗口绑在一起,所以我想知道,热键是和那个窗口绑定的,可是我在API函数中也没有找到相应的函数,但在SendMessage中有这个消息WM_GETHOTKEY,可是我不知道怎么用,请大家给我解释一下,用这个消息时,每个参数的定义是什么,特别是wParam,lParam这两个.
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超速贝贝 2012-01-10
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[Quote=引用 4 楼 meizinick 的回复:]

这个简单啊,网上搜一下就得到答案了.
[/Quote]
简单你哥J8……我搜索一天了也没有答案
meiZiNick 2008-05-01
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这个简单啊,网上搜一下就得到答案了.
CathySun118 2008-03-19
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http://hi.baidu.com/myvfp/blog/item/524b281caddfde8f86d6b6e7.html
sonny72 2008-03-16
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我现在最担心的是这个热键是和那五个没有句柄的按钮绑定的,如果是那样的话,我还有什么办法吗?急啊,如果谁有思路的话,也请说一下,我尝试向所有可以得到句柄的窗口都发送了热键,但没有一个是有反就的.
嗷嗷叫的老马 2008-03-16
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WM_KEYDOWN
The WM_KEYDOWN message is posted to the window with the keyboard focus when a nonsystem key is pressed. A nonsystem key is a key that is pressed when the alt key is not pressed.

WM_KEYDOWN
nVirtKey = (int) wParam; // virtual-key code
lKeyData = lParam; // key data

Parameters
nVirtKey
Value of wParam. Specifies the virtual-key code of the nonsystem key.
lKeyData
Value of lParam. Specifies the repeat count, scan code, extended-key flag, context code, previous key-state flag, and transition-state flag, as shown in the following table. Value Description
0–15 Specifies the repeat count for the current message. The value is the number of times the keystroke is auto-repeated as a result of the user holding down the key. If the keystroke is held long enough, multiple messages are sent. However, the repeat count is not cumulative.
16–23 Specifies the scan code. The value depends on the original equipment manufacturer (OEM).
24 Specifies whether the key is an extended key, such as the right-hand alt and ctrl keys that appear on an enhanced 101- or 102-key keyboard. The value is 1 if it is an extended key; otherwise, it is 0.
25–28 Reserved; do not use.
29 Specifies the context code. The value is always 0 for a WM_KEYDOWN message.
30 Specifies the previous key state. The value is 1 if the key is down before the message is sent, or it is 0 if the key is up.
31 Specifies the transition state. The value is always 0 for a WM_KEYDOWN message.


Return Values
An application should return zero if it processes this message.

Default Action
If the f10 key is pressed, the DefWindowProc function sets an internal flag. When DefWindowProc receives the WM_KEYUP message, the function checks whether the internal flag is set and, if so, sends a WM_SYSCOMMAND message to the top-level window. The wParam parameter of the message is set to SC_KEYMENU.

Remarks
Because of the autorepeat feature, more than one WM_KEYDOWN message may be posted before a WM_KEYUP message is posted. The previous key state (bit 30) can be used to determine whether the WM_KEYDOWN message indicates the first down transition or a repeated down transition.

For enhanced 101- and 102-key keyboards, extended keys are the right alt and ctrl keys on the main section of the keyboard; the ins, del, home, end, page up, page down and arrow keys in the clusters to the left of the numeric keypad; and the divide (/) and enter keys in the numeric keypad. Other keyboards may support the extended-key bit in the lKeyData parameter.


你的代码:

API.PostMessage(hwnd, WM_KEYDOWN,(int)System.Windows.Forms.Keys.F1,null);
API.PostMessage(hwnd,WM_KEYUP,(int)System.Windows.Forms.Keys.F1,null);

LPARAM都传了NULL.

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