C ++ - 使用SendInput方法模拟击键，无法区分rightctrl键

时间：2015-03-18 18:31:10

标签： c++ visual-studio-2010 exe sendinput bsod

我对C ++的经验很少，而且我对SendInput方法完全不熟悉。我通过注册表修改设置了我的笔记本电脑（使用英国键盘），每当按下right control键并按两次scroll lock时创建一个崩溃转储。我试图通过在Visual C ++ 2010 Express中编译的c ++可执行文件以编程方式实现此目的。

使用这篇文章：how to use sendinput function C++作为我的灵感，我在下面创建了代码片段。除了多个Cannot find or open the PDB调试输出，从阅读这篇文章：Error Message : Cannot find or open the PDB file显然可以忽略，代码编译并运行。然而，没有BSOD发生。我手动“强制”了BSOD，所以我知道它有效。

请记住我是新手，请说明必须对此进行哪些更改？

#define WINVER 0x500
#include <windows.h>

int main()
{
INPUT ip;
ip.type = INPUT_KEYBOARD;
ip.ki.wScan = 0;
ip.ki.time = 0;
ip.ki.dwExtraInfo = 0;

ip.ki.wVk = VK_RCONTROL;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = VK_SCROLL;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = VK_SCROLL;
ip.ki.dwFlags = KEYEVENTF_KEYUP;
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = VK_SCROLL;
ip.ki.dwFlags = 0;
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = VK_SCROLL;
ip.ki.dwFlags = KEYEVENTF_KEYUP;
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = VK_RCONTROL;
ip.ki.dwFlags = KEYEVENTF_KEYUP;
SendInput(1, &ip, sizeof(INPUT));

return 0;
}

3 个答案:

答案 0 :(得分：1)

以下是我编写的一个简单应用程序的相关代码，用于显示键入应用程序的键的虚拟键，扫描代码，标志等。 （该代码演示了如何创建列表框并处理WM_KEYDOWN，WM_KEYUP，WM_SYSKEYDOWN和WM_SYSKEYUP消息，然后显示参数：

void CChildView::ReportKey (UINT nChar, UINT nRepCnt, UINT nFlags)
{
    CString str;
    str.Format ( "%s Virtual key=%d; Scan code=%d Extended=%d AltDown=%d",
             (nFlags & 0x8000) ? "Up" : "DOWN",
             nChar, (nFlags & 0xFF), !!(nFlags & 0x0100), !!(nFlags & 0x2000) );
    AddString (str);
}


void CChildView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
    ReportKey (nChar, nRepCnt, nFlags);
    CListBox::OnKeyDown(nChar, nRepCnt, nFlags);
}

void CChildView::OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags)
{
    ReportKey (nChar, nRepCnt, nFlags);
    CListBox::OnKeyUp(nChar, nRepCnt, nFlags);
}

void CChildView::OnSysKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
    ReportKey (nChar, nRepCnt, nFlags);
    CListBox::OnSysKeyDown(nChar, nRepCnt, nFlags);
}

void CChildView::OnSysKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags)
{
    ReportKey (nChar, nRepCnt, nFlags);
    CListBox::OnSysKeyUp(nChar, nRepCnt, nFlags);
}

按下Right Control键，然后释放，此应用程序具有键盘焦点时，显示：

DOWN Virtual key=17; Scan code=29 Extended=1 AltDown=0
Up Virtual key=17; Scan code=29 Extended=1 AltDown=0

奇怪的是，虚拟键＆＃34; 17＆＃34;是0x11，根据this chart VK_CONTROL而不是VK_RCONTROL！ Extended标志为真。

按下并释放Left Control键时，输出为：

DOWN Virtual key=17; Scan code=29 Extended=0 AltDown=0
Up Virtual key=17; Scan code=29 Extended=0 AltDown=0

因此，Windows似乎永远不会看到VK_RCONTROL，而是会看到VK_CONTROL Extended = true。

因此尝试使用以下方法调用SendInput（）：

INPUT ip[6];
...
ip[0].ki.wVk = VK_CONTROL;
ip[0].ki.wScan = MapVirtualKey(VK_CONTROL, 0);
ip[0].ki.dwFlags = KEYEVENTF_EXTENDEDKEY; 
....
ip[5].ki.wVk = VK_CONTROL;
ip[5].ki.wScan = MapVirtualKey(VK_CONTROL, 0);
ip[5].ki.dwFlags = KEYEVENTF_KEYUP | KEYEVENTF_EXTENDEDKEY; 
SendInput(_countof(ip), &ip[0], sizeof(INPUT));

编辑：根据comment

指定ip.ki.wScan
  

不使用KEYEVENTF_SCANCODE并不意味着将忽略wScan值。如果将wScan设置为0，它就会失败并且某些应用程序（例如RDP-Client）可能会出现不同/错误。

编辑2：我认为这不重要，但最好只调用SendInput一次，然后传递一组INPUT结构作为事务执行，所以所有击键都是作为一个单元重放（例如，用户不能在你的中间散布他自己的密钥）。

编辑3：您可以download the application显示键入的键。

答案 1 :(得分：0)

@David Ching ...这让我很沮丧...我已经阅读了所有相关文档（并试图理解它，记住我是新手），我尝试过无数代码的排列考虑了你的建议和我读过的内容。根据你的上一个建议，下面的代码是我尝试过的最后一个没有成功的代码。我正在试图确定哪些其他因素可以对这个问题产生影响 - 硬件（笔记本电脑是东芝Satellite L670D-10N），还是操作系统（Windows 7旗舰版 - 英语语言包的西班牙语版）会有所作为？ - 我无法想象。我真的非常感谢你的帮助，请不要放弃帮助！ - 顺便说一句，感谢应用程序链接。

#define WINVER 0x0500
#include <windows.h>

int main()
{
INPUT ip[6];

ip[0].ki.wVk = VK_CONTROL;
ip[0].ki.wScan = MapVirtualKey(VK_CONTROL, 0);
ip[0].ki.dwFlags = KEYEVENTF_EXTENDEDKEY;

ip[1].ki.wVk = VK_SCROLL;
ip[1].ki.dwFlags = 0;

ip[2].ki.wVk = VK_SCROLL;
ip[2].ki.dwFlags = KEYEVENTF_KEYUP;

ip[3].ki.wVk = VK_SCROLL;
ip[3].ki.dwFlags = 0;

ip[4].ki.wVk = VK_SCROLL;
ip[4].ki.dwFlags = KEYEVENTF_KEYUP;

ip[5].ki.wVk = VK_CONTROL;
ip[5].ki.wScan = MapVirtualKey(VK_CONTROL, 0);
ip[5].ki.dwFlags = KEYEVENTF_KEYUP | KEYEVENTF_EXTENDEDKEY;
SendInput(_countof(ip), &ip[0], sizeof(INPUT));

return 0;
}

更新 - 成功的SENDINPUT测试代码 

#define WINVER 0x0500
#include <windows.h>

int main()
{
INPUT ip;

Sleep(3000);

ip.type = INPUT_KEYBOARD;
ip.ki.wScan = 0;
ip.ki.time = 0;
ip.ki.dwExtraInfo = 0;

ip.ki.wVk = 0x43;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x43;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x48;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x48;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x52;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x52;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x49;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x49;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x53;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x53;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x10;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x43;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x43;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x48;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x48;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x52;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x52;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x49;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x49;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x53;
ip.ki.dwFlags = 0; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x53;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

ip.ki.wVk = 0x10;
ip.ki.dwFlags = KEYEVENTF_KEYUP; 
SendInput(1, &ip, sizeof(INPUT));

return 0;
}

更新 - 不成功修改的CTRL（（滚动锁定）X2）代码 

#define WINVER 0x0500
#include <windows.h>

int main()
{
INPUT ip[6] = {0};

Sleep(3000);

ip[0].ki.wVk = VK_CONTROL;
ip[0].ki.wScan = MapVirtualKey(VK_CONTROL, 0);
ip[0].ki.dwFlags = KEYEVENTF_EXTENDEDKEY;

ip[1].ki.wVk = VK_SCROLL;
ip[1].ki.wScan = MapVirtualKey(VK_SCROLL, 0);
ip[1].ki.dwFlags = 0;

ip[2].ki.wVk = VK_SCROLL;
ip[2].ki.wScan = MapVirtualKey(VK_SCROLL, 0);
ip[2].ki.dwFlags = KEYEVENTF_KEYUP;

ip[3].ki.wVk = VK_SCROLL;
ip[3].ki.wScan = MapVirtualKey(VK_SCROLL, 0);
ip[3].ki.dwFlags = 0;

ip[4].ki.wVk = VK_SCROLL;
ip[4].ki.wScan = MapVirtualKey(VK_SCROLL, 0);
ip[4].ki.dwFlags = KEYEVENTF_KEYUP;

ip[5].ki.wVk = VK_CONTROL;
ip[5].ki.wScan = MapVirtualKey(VK_CONTROL, 0);
ip[5].ki.dwFlags = KEYEVENTF_KEYUP | KEYEVENTF_EXTENDEDKEY;
SendInput(_countof(ip), &ip[0], sizeof(INPUT));

return 0;
}

答案 2 :(得分：0)

此代码成功地将RControl + ScrollLock + ScrollLock填充到ScanCode应用程序中，但是，抱歉，计算机不会像手动键入这些键时那样重新启动。

#define WINVER 0x0500
#include <windows.h>

int main()
{
    // Must specify INPUT_KEYBOARD for all INPUT structs
    INPUT ip[6] = { 
            { INPUT_KEYBOARD },
            { INPUT_KEYBOARD },
            { INPUT_KEYBOARD },
            { INPUT_KEYBOARD },
            { INPUT_KEYBOARD },
            { INPUT_KEYBOARD },
    };

    Sleep(3000);


    // Specify keys by scancode.  For the VK_SCROLL, it was necessary
    // to instead specify the wVK, otherwise VK==3 was received by ScanCode, instead
    // of VK_SCROLL == 145!
    //ip[0].ki.wVk = VK_CONTROL;
    ip[0].ki.wScan = MapVirtualKey(VK_RCONTROL, MAPVK_VK_TO_VSC);
    ip[0].ki.dwFlags = KEYEVENTF_SCANCODE | KEYEVENTF_EXTENDEDKEY;

    ip[1].ki.wVk = VK_SCROLL;
    ip[1].ki.wScan = MapVirtualKey(VK_SCROLL, MAPVK_VK_TO_VSC);
    ip[1].ki.dwFlags = /*KEYEVENTF_SCANCODE*/ 0;

    ip[2].ki.wVk = VK_SCROLL;
    ip[2].ki.wScan = MapVirtualKey(VK_SCROLL, MAPVK_VK_TO_VSC);
    ip[2].ki.dwFlags = /*KEYEVENTF_SCANCODE |*/ KEYEVENTF_KEYUP;

    ip[3].ki.wVk = VK_SCROLL;
    ip[3].ki.wScan = MapVirtualKey(VK_SCROLL, MAPVK_VK_TO_VSC);
    ip[3].ki.dwFlags = /*KEYEVENTF_SCANCODE*/ 0;

    ip[4].ki.wVk = VK_SCROLL;
    ip[4].ki.wScan = MapVirtualKey(VK_SCROLL, MAPVK_VK_TO_VSC);
    ip[4].ki.dwFlags = /*KEYEVENTF_SCANCODE |*/ KEYEVENTF_KEYUP;

    //ip[5].ki.wVk = VK_CONTROL;
    ip[5].ki.wScan = MapVirtualKey(VK_RCONTROL, MAPVK_VK_TO_VSC);
    ip[5].ki.dwFlags = KEYEVENTF_SCANCODE | KEYEVENTF_KEYUP | KEYEVENTF_EXTENDEDKEY;

    int i = _countof(ip);
    int numSuccessful = SendInput(i, ip, sizeof(INPUT));
    if (numSuccessful == i)
        printf("Stuffed successful.\n");
    else
    {
        printf("Succeeded with %d of %d; error %d\n", numSuccessful, i, GetLastError());
    }

    return 0;
}

我认为原因是SendInput（）将键注入键盘驱动程序上方的层中，并且监视这些键击以启动BSOD的键盘驱动程序。

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