模拟键盘问题，想模拟键盘把“任务管理器”调出来，但是没反应，另外不知道启动“开始"的那个键的扫描码是什么

[zb2003]

代码如下，请各位高人指点
keybd_event(MapVirtualKey(29,1),29,NULL,NULL); //control
keybd_event(MapVirtualKey(56,1),56,NULL,NULL); //alt
keybd_event(MapVirtualKey(83,1),83,NULL,NULL); //del

keybd_event(MapVirtualKey(29,1),29,KEYEVENTF_KEYUP,NULL); //control
keybd_event(MapVirtualKey(56,1),56,KEYEVENTF_KEYUP,NULL); //alt
keybd_event(MapVirtualKey(83,1),83,KEYEVENTF_KEYUP,NULL); //del

[i_noname]

开始"的那个键的扫描码是什么 :VK_LWIN,VK_RWIN

[i_noname]

说错了，VK_LWIN,VK_RWIN是虚拟键码，我的键盘上它们的扫描码是0x5B,0x5C。

另外，调出任务管理器不用这么麻烦，直接启动它就是了
ShellExecute(NULL, "open", "taskmgr.exe", NULL, "C:\\windows\\system32", SW_SHOWNORMAL);

[oyljerry]

直接用ShellExecute等调用好了

[jpsr]

是模拟Ctrl+Alt+Del吗？
那么普通的Keybd_Event是不可以的，因为这个是一个系统级的热键。
2k，xp下挺麻烦的，要用OpenDesktop等API对Winlogon这个桌面发送Ctrl+Alt+Del消息来实现，另外进程要作为服务来运行。

[wlzqi]

.运用PostMessage(HWND_BROADCAST, WM_HOTKEY, 0, MAKELONG(MOD_ALT | MOD_CONTROL, VK_DELETE));来发送虚拟键盘，但是在winNT以后的系统里我们还有很多事情要做，比如：OpenDesktop()、OpenInputDesktop()、GetThreadDesktop()、SetThreadDesktop()、CloseDesktop()、GetUserObjectInformation()

代码如下：


#include "windows.h"
BOOL simulateAltControlDel();
void main()
{
simulateAltControlDel();
}
BOOL simulateAltControlDel()
{
HDESK hdeskCurrent;
HDESK hdesk;
HWINSTA hwinstaCurrent;
HWINSTA hwinsta;
//
// Save the current Window station
//
hwinstaCurrent = GetProcessWindowStation();
if (hwinstaCurrent == NULL)
return FALSE;
//
// Save the current desktop
//
hdeskCurrent = GetThreadDesktop(GetCurrentThreadId());
if (hdeskCurrent == NULL)
return FALSE;
//
// Obtain a handle to WinSta0 - service must be running
// in the LocalSystem account
//
hwinsta = OpenWindowStation("winsta0", FALSE,
WINSTA_ACCESSCLIPBOARD |
WINSTA_ACCESSGLOBALATOMS |
WINSTA_CREATEDESKTOP |
WINSTA_ENUMDESKTOPS |
WINSTA_ENUMERATE |
WINSTA_EXITWINDOWS |
WINSTA_READATTRIBUTES |
WINSTA_READSCREEN |
WINSTA_WRITEATTRIBUTES);
if (hwinsta == NULL)
return FALSE;
//
// Set the windowstation to be winsta0
//
if (!SetProcessWindowStation(hwinsta))
return FALSE;

//
// Get the default desktop on winsta0
//
hdesk = OpenDesktop("Winlogon", 0, FALSE,
DESKTOP_CREATEMENU |
DESKTOP_CREATEWINDOW |
DESKTOP_ENUMERATE |
DESKTOP_HOOKCONTROL |
DESKTOP_JOURNALPLAYBACK |
DESKTOP_JOURNALRECORD |
DESKTOP_READOBJECTS |
DESKTOP_SWITCHDESKTOP |
DESKTOP_WRITEOBJECTS);
if (hdesk == NULL)
return FALSE;

//
// Set the desktop to be "default"
//
if (!SetThreadDesktop(hdesk))
return FALSE;
PostMessage(HWND_BROADCAST,WM_HOTKEY,0,MAKELPARAM(MOD_ALT|MOD_CONTROL,VK_DELETE));


//
// Reset the Window station and desktop
//
if (!SetProcessWindowStation(hwinstaCurrent))
return FALSE;

if (!SetThreadDesktop(hdeskCurrent))
return FALSE;

//
// Close the windowstation and desktop handles
//
if (!CloseWindowStation(hwinsta))
return FALSE;
if (!CloseDesktop(hdesk))
return FALSE;
return TRUE;
}

OpenDesktop("Winlogon", ......)本身需要LocalSystem权限，
把它注册成服务，然后效果实现。

[phoenix96_2000]

每个键盘设置不一样吗，怎么才能在每个机器上都好使

`````````

用virtual key就一致了,scan code,不同键盘可能不一样

[zb2003]

每个键盘设置不一样吗，怎么才能在每个机器上都好使

[zb2003]

怎么找到virtual key，我看msdn了上面只有scan code

[phoenix96_2000]

应该是没有scancode,有virtual key吧:
这个链接:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/userinput/virtualkeycodes.asp