keybd_event and unicode

[naveenkn1977]

guys

i am using keybd_event() to send keystrokes to any active editor(notepad or wordpad) .

instead of normal keystrokes, how do i send unicode values using the same function.

i.e if 'a' is typed i want to send some unicode value of an indian language to the editor.

can anybody help me?

naveen

[Yves M]

In general, using keybd_event will not work for Unicode strings. The simple reason is that there are a lot more steps involved in changing a keystroke into a glyph (a displayed character). You could try sending a WM_CHAR (or WM_UNICHAR if you are using Windows XP) to the active window. This would have a higher chance of succeeding. There can be other problems though, if for example the application is using a code-page conversion, using a non-standard system locale etc.

[Matthias Kring]

Maybe you can use ToUnicode()

"The ToUnicode function translates the specified virtual-key code and keyboard state to the corresponding Unicode character or characters. "

[Yves M]

Interesting, I hadn't thought about that. But what you probably need is VkKeyScanExW rather than ToUnicode.

[naveenkn1977]

hi guys

can u give few lines of code or any example on this

thanks
naveen

[Matthias Kring]

Originally posted by naveenkn1977
can u give few lines of code or any example on this

Sorry, but I have no experience yet with these keyboard conversions. I've only used the SendInput function so far (to simulate some key input). And I will not have the time to develop a sample project now.
Maybe you can find some sample in the MSDN (which also has a lot of stuff to read about keyboard input).
Sorry again.

[naveenkn1977]

hi
actually my code works both with sendInput() and keybd_event()

my code ---------------

INPUT Input[2];
KEYBDINPUT ki;


ki.wVk = wKeyCode;
ki.dwFlags = KEYEVENTF_EXTENDEDKEY | 0;
ki.time = 0;
ki.wScan = 0;

Input[0].type = INPUT_KEYBOARD;
Input[0].ki = ki;

SendInput( 1, Input, sizeof(INPUT) );
-----------------------

in msdn i found that if i replace KEYEVENTF_EXTENDEDKEY with
KEYEVENTF_UNICODE | KEYEVENTF_KEYUP

then i can send unicode characters

but when i compile it says KEYEVENTF_UNICODE undeclared variable. also i cannot find an entry for it in winuser.h

can u help me


thanks
naveen

[Matthias Kring]

KEYEVENTF_UNICODE is in winuser.h, and it is only available #if(_WIN32_WINNT >= 0x0500) (that is, at least Windows 2000 is needed)

[naveenkn1977]

hai,

I am working on Windows XP and VC++ 6.0

In my winuser.h file i see only following lines

#define KEYEVENTF_EXTENDEDKEY 0x0001
#define KEYEVENTF_KEYUP 0x0002

There is no reference for KEYEVENTF_UNICODE

what should i do ?

naveen

[Matthias Kring]

Originally posted by naveenkn1977
hai,

I am working on Windows XP and VC++ 6.0

In my winuser.h file i see only following lines

#define KEYEVENTF_EXTENDEDKEY 0x0001
#define KEYEVENTF_KEYUP 0x0002

There is no reference for KEYEVENTF_UNICODE

what should i do ?

naveen

Oops. You're right. It's not in the normal WINUSER.H.
I've additionally installed the "Platform SDK" which comes first in path.

Look here to get the platform SDK
http://www.microsoft.com/msdownload/...sdk/sdkupdate/

Matthias

[naveenkn1977]

hi

which SDK do i have to install ? should i install all the sdks ?

[Matthias Kring]

Originally posted by naveenkn1977
hi

which SDK do i have to install ? should i install all the sdks ?

The "core" should be sufficient.
But it's a rather huge download....

The Platform SDK is also part of the MSDN subscription.