C / C++ / MFC

27-Jul-03 13:56

Come ON, someone out there must know this...

How can you send a char that's not on the keyboard using SendInput?

To type '¯', for example, you hold alt and type 0175 on the num pad.
So I guessed this, but it doesn't work Frown | :(

int i;
INPUT input[10];
ZeroMemory(input, sizeof(input));
for (i = 0; i < 10; i++)
  input[i].type = INPUT_KEYBOARD;
input[0].ki.wVk = 18; //there doesn't seem to be a VK_ALT
input[1].ki.wVk = input[2].ki.wVk = 0x60; //num0
input[3].ki.wVk = input[4].ki.wVk = 0x61; //num1
input[5].ki.wVk = input[6].ki.wVk = 0x67; //num7
input[7].ki.wVk = input[8].ki.wVk = 0x65; //num5
input[9].ki.wVk = 18;
input[2].ki.dwFlags = input[4].ki.dwFlags = input[6].ki.dwFlags =
  input[8].ki.dwFlags = input[9].ki.dwFlags = KEYEVENTF_KEYUP;
SendInput(10, input, sizeof(INPUT));

using a keyboard logger, i can see that it does exactly what I want, ie press alt, type 0175, release alt, but it doesn't send '¯' to the active app
Confused | :confused:

Any ideas?

Any method to simulate the typing of ¯ to the active app will be fine - not necessarily SendInput(), that's just what i have used do far.

thanks in advance

=====
Phlip

Always proofread carefully to see if you any words out

Michael Dunn27-Jul-03 14:37

Michael Dunn

27-Jul-03 14:37

Friendly advice: Yelling at the board will not increase the chances of getting a response.

Partial response: Use VK_MENU for the Alt key.

--Mike--
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phlipping27-Jul-03 14:44

27-Jul-03 14:44

Michael Dunn wrote:
Friendly advice: Yelling at the board will not increase the chances of getting a response.

but it will increase it's chance of getting seen - this forum's so popular that in 1 day a post drifts back to the third page - it's quite likely that a lot of regulars who might know the answer to my problem never saw the post because it had disappeared before they got here.

=====
Phlip

Always proofread carefully to see if you any words out

Abin27-Jul-03 15:11

Abin

27-Jul-03 15:11

Did you try WM_CHAR already or it didn't work? Just like: ::SendMessage(hwnd, WM_CHAR, (WPARAM)175, (LPARAM)0); or something like that...

phlipping27-Jul-03 15:25

27-Jul-03 15:25

it didn't work, but I've had an idea...
it would probably work if i sent the WM_CHAR to the text box rather than the window

is it possible to get the hwnd of the control with the focus on a different window? There's probably an API call for it, but what is it?

I don't know the control ID or anything like that - i'm sending to a 3rd-party chat app

=====
Phlip

Always proofread carefully to see if you any words out

Beer2627-Jul-03 15:51

27-Jul-03 15:51

::ChildWindowFromPoint

put your mouse cursor over the child window, collect the x,y, then get the handle with that API.

HWND = ((CWnd*)ChildWindowFromPoint( POINT point ))->m_hWnd;

I hope it works out for you.

phlipping27-Jul-03 16:48

27-Jul-03 16:48

weird...

that works with notepad, but not with the chat program i'm writing this for.

besides, i don't want to have to hold the mouse cursor over the input box whenever I want to send something.

surely there's an API call to get the active child?

=====
Phlip

Always proofread carefully to see if you any words out

Abin27-Jul-03 17:33

Abin

27-Jul-03 17:33

Receiving a message is one thing, and displaying contents in an editbox is another. Not every thing is displayable, probably your receiver-window is not able to display that kind of characters----notepad can maybe, but that doesn't mean your editbox can too.

But of course you need to first make sure that your receiver-window really has received the aforementioned message(WM_CHAR), so override its PreTranslateMessage and see...

phlipping27-Jul-03 18:04

27-Jul-03 18:04

it's able to display it when i type it in (via alt+numpad)

i'm sending the message to an IRC client - i don't exactly want to crack it and override its PreTranslateMessate.

I'm giving up on writing this in C. I'm porting the whole thing to VB - it's SendKeys function does wnat I want.

The only reason I didn't write it in VB to begin with is because i couldn't get EnumWindows to work properly, but i've figured it out now.

Thanks anyway for your suggestions.

=====
Phlip

Always proofread carefully to see if you any words out

Beer2627-Jul-03 18:20

27-Jul-03 18:20

Declare Function EnumChildWindows Lib "user32" (ByVal hWndParent As Long, ByVal lpEnumFunc As Long, lParam As Long) As Long

Function EnumChildProc(ByVal hwnd As Long, lParam As Long) As Long
' DO SOMETHING WITH HWND HERE
End Function

Call EnumChildWindows(parentWnd, AddressOf EnumChildProc, 1)

Phlip,

I hope this VB code sample I typed will help you. It hurts to write this, but you could do the exact same thing in VC++, as a matter of fact doing it in VB is a bizzare abstraction of the real C++ API.

Saying you have to port it to visual basic doesn't make much sense to me although I'm sure you have your reasons.

phlipping27-Jul-03 18:32

MDI window title when created

27-Jul-03 18:32

What I'm trying to make is an automatic typer thingy for chat programs - just click a button and it types a bunch of stuff for you.

I could write the typing bit easily in VB - there's a function called "SendKeys" which does exactly that. But I didn't know of the AddressOf operator at that stage, so I though I'd have to use C++ to use EnumWindows because you have to pass a function pointer to it.

I then figured out how to use SendInput and made a function that turned a string into an array of INPUTs that would type that string (complete with things like '{' -> {SHIFT DOWN}'['{SHIFT UP}) but I ran into trouble if i wanted to include characters that weren't directly typable on the keyboard.

But now I've learned the AddressOf operator in VB so I have no problems programming it there.
If I know how to do it in VB, but don't in C, why bother trying to do it in C?

I would have preferred to do it in C, for obvious reasons (VB is, well, VB after all, for crissake), but the right tool for the right project and all that...

=====
Phlip

Always proofread carefully to see if you any words out

michael_cowan27-Jul-03 13:35

michael_cowan

27-Jul-03 13:35

Hi,

I need to be able to get the window name of a MDI window when it is created. I tried adding the following code to CProjectNameDoc::OnNewDocument() :

<br />
CProjectNameDoc::OnNewDocument()<br />
{<br />
	if (!CDocument::OnNewDocument()) return FALSE;<br />
<br />
	CMainFrame* pMainFrame = (CMainFrame*)AfxGetMainWnd();<br />
	<br />
	HWND	hWnd;<br />
	TCHAR	szWndTitle[256];<br />
<br />
	hWnd = ::GetWindow(pMainFrame->m_hWndMDIClient, GW_CHILD);<br />
	<br />
	::GetWindowText(hWnd,szWndTitle,<br />
               sizeof(szWndTitle)/sizeof(szWndTitle[0]));<br />
<br />
	AfxMessageBox(szWndTitle);<br />
}<br />

This however does not work correctly. The name displayed when I create a new window is the name of the window before.

The reason for this (as far as I can tell) is that OnNewDocument() is called before the window is created, so the name of the currently selected one is returned.

Any ideas how to fix this?

Thanks,
Mike

I also need to get a pointer to this window. I tried:
((CMainFrame *)AfxGetMainWnd())->GetActiveFrame()
But this seems to have the same time problem as before. I get a pointer to the window before the one being created ... Confused | :confused:

There are 10 people in the world
Those who understand binary and those who dont

Re: MDI window title when created

Beer2627-Jul-03 14:26

27-Jul-03 14:26

BOOL CProjectNameDoc::OnNewDocument()
{
if (!CDocument::OnNewDocument()) return FALSE;

AfxMessageBox(GetTitle( ));

return TRUE;
}

Good thing I have nothing to do all day

Win98 DDK -->XP

Kuniva27-Jul-03 10:48

27-Jul-03 10:48

If i build a VxD using the Win98 DDK will it work in Win XP???

Kuniva
--------------------------------------------

J. Dunlap27-Jul-03 10:50

J. Dunlap

27-Jul-03 10:50

AFAIK Windows XP does not use VXD drivers. So likely not.

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Kuniva27-Jul-03 10:58

27-Jul-03 10:58

lol, err ok stupid question

anyways, how can I access low level stuff on windows XP then?

and ergh... this means, if i had driver code for Win98 i'll have to rewrite everything for Win XP?... that sucks..

Kuniva
--------------------------------------------

Kuniva27-Jul-03 12:14

27-Jul-03 12:14

and err there's a WinXP DDK, whats that all about then???
and what does AFAIK mean????

Kuniva
--------------------------------------------

Beer2627-Jul-03 12:16

27-Jul-03 12:16

http://www.microsoft.com/whdc/ddk/ordernetddkcd.mspx[^]

M$, the $ means money

Alexander ^M.,27-Jul-03 12:59

Alexander ^M.,

27-Jul-03 12:59

only shipping!

Don't try it, just do it! Wink | ;-)

Kuniva27-Jul-03 23:22