keystroke sending for capital letters and some special symbols

Question

0.00/5 (No votes)

See more:

I have an vc++ application to perform softkeyboard.I could sent keystrock for all letters a to z and 1 th through 9 including 0, backspace, space. But now the problem is that i cant send the keystroke for capital letter(A to Z) and symbols like ! @ # $ etc. My code ad ????? following. for small letters I have written the code

C++

keybd_event(0x51,0,0,0);//keystrock when press the button
keybd_event(0x51,0,KEYEVENTF_KEYUP,0);//keystrock when release the button

for capital letter

C++

    UINT keyVirtualCode=VkKeyScan('Q');//getting virtualcode
CString str;
str.Format(_T("%i"),keyVirtualCode);//convert to string
//AfxMessageBox(str);//display the virtualcode
    keybd_event(0x151 ,0,0,0);//keystrock when press the button
    keybd_event(0x151,0,KEYEVENTF_KEYUP,0);//keystrock when release the button

For sending small letters it works well, but can't send capital letters. Can we do this thing using keybd_event. If not, can it by using SendInput function. Please ~~ans~~ answer for this ~~que~~ question if you know. explain with example.

Posted 9-May-11 22:58pm

nooriya ibrahim

Updated 10-May-11 2:17am

#realJSOP

v3

Add a Solution

Comments

#realJSOP 10-May-11 8:18am

DO NOT ABBREVIATE OR USE TEXTSPEAK. It just pisses most of us off.

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

ShilpiP · Answer 1 · 2011-05-10T01:16:00

Solution 1

One way that I found is that you have to check the keystate

int nShftKeyState = GetKeyState(VK_SHIFT);
int nCapsKeyState = GetKeyState(VK_CAPITAL);

Check if shift key and caps lock is pressed. Sample code is shown below:

if(nShftKeyState & 0xff00)
{

}

Posted 10-May-11 1:16am

ShilpiP

nooriya ibrahim · Answer 2 · 2011-05-10T01:29:00

But how we can obtain shiftkey's keystrock.In my shiftkey's button i have written the code as follows
// declare bool value as a member variable
//BOOL bShift;
//BOOL bCaps;
// initialize it
//bShift = FALSE;
//bCaps = FALSE;

C#

void CKeyBoardDlg::OnBnClickedButton45()//for shiftkey
{
    if(m_nFirst==1)
    {
        m_nFirst=0;
        bShift = FALSE;
        keybd_event(0x10,0,0x002,0);//releasing the button
    }
    else if(m_nFirst==0)
    {
        bShift = TRUE;
        keybd_event(0x10,0,0,0);//press down the key or button
        m_nFirst=1;
    }
}

For a char say 'a' my code as follows

C#

void CKeyBoardDlg::OnBnClickedButton33()//a
{
   if(bShift)
   {
    keybd_event(0x41,0,0,0);
    keybd_event(0x41,0,KEYEVENTF_KEYUP,0);
   }
   else
   {
     //capital A

   }
    DestroyWindow();
}

Dear shilpi without using getkeystate i could send caps.but again clicking on the button45 button click event is not working.that is i cant written caps to small letter.

Sergey Alexandrovich Kryukov · Answer 3 · 2011-05-10T21:17:00

Important note:

Note This function [keybd_event — SA] has been superseded. Use SendInput instead.

See http://msdn.microsoft.com/en-us/library/ms646304(v=vs.85).aspx[^].

So, use SendInput. It's better and works like a charm.
See http://msdn.microsoft.com/en-us/library/ms646310(v=vs.85).aspx[^].

—SA

keystroke sending for capital letters and some special symbols

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0