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Change Above example from
keybd_event(VK_TAB,0x8f,0 , 0); // Tab Press
keybd_event(VK_TAB,0x8f, KEYEVENTF_KEYUP,0); // Tab Release
to
keybd_event(VK_TAB,0xf,0 , 0); // Tab Press
keybd_event(VK_TAB,0xf, KEYEVENTF_KEYUP,0); // Tab Release
Changing break code 0x8f for tab to be 0xf allowed me to send tab key to Citrix client.
Andy
Andrew DeVries has been a .Net programmer since 2003. He currently works as a consultant designing custom software for windows as well as for the web. Currently he spends his days designing custom web controls and custom data sources.
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Dear Naren Neelamegam!
I created windows service and simulate key form this service (such as a Caption key,....)
I use keybd_event() function but it does not launch
Please help me solve this problem
Thanks
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hello friends..........can ani one help me how to lock the windows screen using SendInput Function..........for windows vista
The Newer Function For keydb_event function
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I want to activate the lock screen by windows key and 'L' key......
in windows vista any one help me in doing that....through this keybd_event function.....
thanking u
sekhar.................
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Why not just use LockWorkStation()
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This should keep the left-key pressed until I click button2:
<br />
[DllImport("user32.dll")]<br />
static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, int dwExtraInfo);<br />
<br />
private void button1_Click(object sender, EventArgs e)<br />
{<br />
keybd_event(0x26, 0x45, 0, 0);<br />
}<br />
<br />
private void button2_Click(object sender, EventArgs e)<br />
{<br />
const int KEYEVENTF_KEYUP = 0x2;<br />
keybd_event(0x26, 0x45, KEYEVENTF_KEYUP, 0);<br />
}<br />
<br />
But it only presses left once. Whats wrong?
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How can is send the notebook key known as FN?
i'm using a wiimote to control the volume and the screen brightness with keybd_event.
Greetz
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how do a person implement a virtual keyboard in C++.any code would help.
thanks in advance
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hello
at first i am very sorry for my bad english.
i was must develop one application, which should send keystrokes to the dos application ( classic dos window in win xp)
sendkeys() can send keystrokes but, it cant simulated keystrokes between {F1} - {F12}
and that was very problem for me.
i solved this problem, for interesting:
private void sndks(int key)<br />
{<br />
const byte KEYEVENTF_KEYUP = 2;<br />
<br />
int ScanKey = MapVirtualKey(key, 0);<br />
<br />
keybd_event(0x76, (byte)ScanKey, 0, 0);<br />
keybd_event(0x76, (byte)ScanKey, KEYEVENTF_KEYUP, 0);<br />
}
KEYEVENTF_KEYUP = 2; release the key
this function send to the dos window any char
regards
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1. When I was sending the number 6, it actually only worked with the "Make" code versus the "Break" code like the article says. I don't know about letters, I only tried the numbers 6-9.
2. If you don't want to hardcode/look up the scan codes, just use something like this:
<code>
void SendKey(char c) {
WORD vkey = VkKeyScan(c);
BYTE scan = MapVirtualKey(vkey, 0);
keybd_event(vkey,scan,0,0);
//and of course, if you want to do the whole keypress event
keybd_event(vkey,scan,KEYEVENTF_KEYUP,0);
}
</code>
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I would like to know how to simlulate press and hold a character key?
For example, if we were to press down a character key, say 'a', on Notepad. 'a' will shows up until we release the key. Is there any way to simulate it?
Thanks for your help.
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Yeah, I'd like to know how to do this as well.
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But where can I get the keybd_event() function to use it?
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OK, I understood - it is in windows.h
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Hello, I´m trying to do an application in c++ which It send the secuence Ctrl+Alt+Del. The code is:
keybd_event(VK_LCONTROL,0,0 , 0);
keybd_event(VK_MENU,0,0 , 0);
keybd_event(VK_DELETE,0,0 , 0);
::Sleep(50);
keybd_event(VK_DELETE,0, KEYEVENTF_KEYUP,0);
keybd_event(VK_MENU,0,KEYEVENTF_KEYUP,0);
keybd_event(VK_LCONTROL,0,KEYEVENTF_KEYUP,0);
but it doesn´t work.
Can help me? Thanks.
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keybd_event is not working with ctrl+alt+delete keys simulation. I too agree. Let me have some time to work on it to get a solution. But you can lock your system using WinKey+'L',
keybd_event(VK_LWIN,0, 0 , 0);
keybd_event(VkKeyScan('L'),0xa6,0 , 0);
keybd_event(VkKeyScan('L'),0xa6,KEYEVENTF_KEYUP , 0);
keybd_event(VK_LWIN,0,KEYEVENTF_KEYUP,0);
or if you want to bring task manager, use "Ctrl+Shift+Esc"
Hope it may help you...
Thanks,
Naren Neelamegam
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How can I send Ctrl+Alt+H. Nothing happens when I run this code :
keybd_event((byte)Convert.ToInt32(Keys.Control), (byte)MapVirtualKey(Convert.ToInt32(Keys.Control), 0), 0, 0);
keybd_event((byte)Convert.ToInt32(Keys.Alt), (byte)MapVirtualKey(Convert.ToInt32(Keys.Alt), 0), 0, 0);
keybd_event((byte)Keys.H, (byte)MapVirtualKey(Convert.ToInt32(Keys.H), 0), 0, 0);
keybd_event((byte)Keys.H, (byte)MapVirtualKey(Convert.ToInt32(Keys.H), 0), KEYEVENTF_KEYUP, 0);
keybd_event((byte)Convert.ToInt32(Keys.Alt), (byte)MapVirtualKey(Convert.ToInt32(Keys.Alt), 0), KEYEVENTF_KEYUP, 0);
keybd_event((byte)Convert.ToInt32(Keys.Control), (byte)MapVirtualKey(Convert.ToInt32(Keys.Control), 0), KEYEVENTF_KEYUP, 0);
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[quote]
But you can lock your system using WinKey+'L',
keybd_event(VK_LWIN,0, 0 , 0);
keybd_event(VkKeyScan('L'),0xa6,0 , 0);
keybd_event(VkKeyScan('L'),0xa6,KEYEVENTF_KEYUP , 0);
keybd_event(VK_LWIN,0,KEYEVENTF_KEYUP,0);
[/quote]
At least for WinXp...Win7 - unworkable
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I think only the system account and some of the services accounts can generate a CTRL+ALT+DEL event.
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But , how can I send Ctrl+Alt+H . Nothing happens when I run this code:
keybd_event((byte)Convert.ToInt32(Keys.Control), (byte)MapVirtualKey(Convert.ToInt32(Keys.Control), 0), 0, 0);
keybd_event((byte)Convert.ToInt32(Keys.Alt), (byte)MapVirtualKey(Convert.ToInt32(Keys.Alt), 0), 0, 0);
keybd_event((byte)Keys.H, (byte)MapVirtualKey(Convert.ToInt32(Keys.H), 0), 0, 0);
keybd_event((byte)Keys.H, (byte)MapVirtualKey(Convert.ToInt32(Keys.H), 0), KEYEVENTF_KEYUP, 0);
keybd_event((byte)Convert.ToInt32(Keys.Alt), (byte)MapVirtualKey(Convert.ToInt32(Keys.Alt), 0), KEYEVENTF_KEYUP, 0);
keybd_event((byte)Convert.ToInt32(Keys.Control), (byte)MapVirtualKey(Convert.ToInt32(Keys.Control), 0), KEYEVENTF_KEYUP, 0);
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Hi,
sir can u tell me how to send a unicode character using keybd_event() function in an application.(of cource vc++6)
Wating for replay.
mahfuz
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Have you any idea on how to capture the keyboard events in my application and/or other applications?
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this Will api will HElp You out
GetAsyncKeyState
-----------------------------
"I Think this Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk
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You can use SetWindowsHookEx too.
I LOVE ALOK.
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What with PageUp and PageDown .... Are there virtual keycodes for this keys ?? .... btw - great "code project"
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