C / C++ / MFC Discussion Boards

Member 18130718-Jul-03 1:36

18-Jul-03 1:36

Hello,
I want to write an application in Visual C++ that can control an existing windows application, send keystrokes of any kind to an application. Control it as if you were sitting at your keyboard and hitting a hotkey. simulate mouse movement and left, right or middle mouse button clicks. By setting the cursor position to the location of an application's button and clicking the left mouse button - both with a single remote control button - it is even possible to control stubborn apps which do not support messages or hotkeys properly
Can anybody point me in the right direction.

Thanks

Re: Application Control

Dominik Reichl18-Jul-03 1:54

Dominik Reichl

18-Jul-03 1:54

leary wrote:
send keystrokes of any kind

VOID keybd_event(
  BYTE bVk,           // virtual-key code
  BYTE bScan,         // hardware scan code
  DWORD dwFlags,      // flags specifying various function options
  DWORD dwExtraInfo   // additional data associated with keystroke
);

or (on NT)

UINT SendInput(
  UINT nInputs,     // count of input events
  LPINPUT pInputs,  // array of input events to insert
  int cbSize        // size of an INPUT structure
);

leary wrote:
left, right or middle mouse button clicks

VOID mouse_event(
  DWORD dwFlags, // flags specifying various motion/click variants
  DWORD dx,      // horizontal mouse position or position change
  DWORD dy,      // vertical mouse position or position change
  DWORD dwData,  // amount of wheel movement
  DWORD dwExtraInfo 
                 // 32 bits of application-defined information
);

or (on NT)

UINT SendInput(
  UINT nInputs,     // count of input events
  LPINPUT pInputs,  // array of input events to insert
  int cbSize        // size of an INPUT structure
);

leary wrote:
setting the cursor position

BOOL SetCursorPos(
  int X,  // horizontal position
  int Y   // vertical position
);

Hope that helps Big Grin | :-D

-Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

Re: Application Control

Member 18130718-Jul-03 3:14

Member 181307

18-Jul-03 3:14

Thanks,
hopefully this will get me up and running.

Scrollbars and Resizing the CFormView class

Martin Steiner18-Jul-03 1:27

Martin Steiner

18-Jul-03 1:27

Hello!

I am working with views in sizeable dockin control bars (example http://www.codeproject.com/docking/dockview.asp)
but this is not really my problem.
What i need is to dynamically change the size of the underlying View-Class (CFormView) - In this example, the Size of the View is defined by the size of the Resource.
I tried to do this with the MoveWindow()-Funktion - but this cannot work, since this operates on the displayed window.
I need to create Controls dynamically and resize the view - so all controls can be displayed. The size of the displayed window should stay the same - only the scrollbar-ranges should chang as a reaction to the new size.

a million thanks if anybody can help me.

Re: Scrollbars and Resizing the CFormView class

Martin Steiner18-Jul-03 4:08

Martin Steiner

18-Jul-03 4:08

Hello Again!

I have now found a way to accomplish this. Maybe there are other ways, but I am very new to the MFC Framework (in fact, this project is my first work with MFC and the MDI)

I have changed the members CScrollView - Data Members
"m_totalLog" and "m_totalDev" with my new SIZE-Struct and Called the
OnSize() method of CScrollView to reflect the changes.

Now I can position new Elements on my view dynamically.

Anyway - maybe someone knows a better way, or find this information useful.

greetings from Austria

Martin

Strange problem with CRichEditCtrl

Manfred Staiger18-Jul-03 1:24

Manfred Staiger

18-Jul-03 1:24

I have a SDI application with the view class derived from CRichEditView. The following code behaves different on one of of our machines:

long posError=0;
FINDTEXTEX text;
text.lpstrText="Error (";
text.chrg.cpMin=0;
text.chrg.cpMax=-1;

posError=GetView()->GetRichEditCtrl().FindText(FR_MATCHCASE|FR_WHOLEWORD, &text);
if(posError!=-1)
{
DoSomething...
}

On most machines it works fine and finds the lines containing "Error(" but on one machine it only works when I don't use the FR_WHOLEWORD flag in the FindText function. I never came across this problem ever before and can't imagine any reason for that. I'm "at the end with my latin" as we say in german. Does anybody have an idea ???

MS

SetWindowLong - replacing WndProc

User 665818-Jul-03 1:22

User 6658

18-Jul-03 1:22

Hi
I'm programming a plugin for an application, and I want to subclass the WindowProc of the main window to receive its messages and then forward them to the main window.
this is what I currently do:

WNDPROC pOrigProc = (WNDPROC)SetWindowLong(wndMainForm, GWL_WNDPROC, (LONG)HookWndProc);

This works, the WNDPROC will be redirected to my WindowProc:

LRESULT CALLBACK HookWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch(uMsg) 
    {
        case WM_MOVE:
			MessageBox(NULL, "WM_MOVING", "", MB_OK);
				return 0;
			break;
		case WM_SYSCOMMAND:
			if(wParam == SC_MINIMIZE)
				return 0;
			break;
		default:
			break;
	}

	// Call main Window Proc
	return CallWindowProc(pOrigProc, hwnd, uMsg, wParam, lParam);
}

For some reason, neither the message box appears, nor will the main window be prohibited to me minimized, although I don't redirect the WM_SYSCOMMAND-message (return 0). But the windowproc itself gets called. So what's wrong here?

regards
Greg

modified 12-Sep-18 21:01pm.

Re: SetWindowLong - replacing WndProc

Hans Ruck18-Jul-03 6:36

Hans Ruck

18-Jul-03 6:36

It seems that you're subclassing a child of the main window.
If you're using MFC then wndMainForm must equal m_hWnd of the CFrameWnd-derived class.

rechi

String to Long

si_6918-Jul-03 0:14

si_69

18-Jul-03 0:14

Hi there

does ne1 know how to convert a string to a long

my string contains numeric characters

ie. mystring = "42309492"
or mystring = "-42342"

im using the below but its not working

char * pEnd;
long l;
l = strtol (mystring,&pEnd,0);

can ne1 help

thanks

si

Re: String to Long

Anthony_Yio18-Jul-03 0:45

Anthony_Yio

18-Jul-03 0:45

try atol(const char *);

Re: String to Long

Andrew Walker18-Jul-03 1:21

Andrew Walker

18-Jul-03 1:21

Use the standard library with string streams

#include <sstream><br />
<br />
const char* buffer = "1023451235";<br />
istringstream iss(buffer);<br />
long myLong;<br />
iss >> myLong;

If you can keep you head when all about you
Are losing theirs and blaming it on you;
If you can dream - and not make dreams your master;
If you can think - and not make thoughts you aim;
Yours is the Earth and everything that's in it.

Rudyard Kipling

Re: String to Long

RChin18-Jul-03 3:55

RChin

18-Jul-03 3:55

you can use atol(), as replied by the above post.
But the reason strtol() is not working in your code is because you havent specified the correct number base.

<br />
l = strtol(mystring, &pEnd, 10)<br />

"..Even my comments have bugs!"

Inspired by Toni78

ListCtrl

heju18-Jul-03 0:14

heju

18-Jul-03 0:14

Hi,

I have a problem with my ListCrtl. I use InsertColumn to set the headlines over my columns but I want, that the user can not move the headlines. They should be fix.
I hope somebody can help me how I can solve this problem.

Bye
Julia

Re: ListCtrl

si_6918-Jul-03 0:19

si_69

18-Jul-03 0:19

if you use

CListCtrl& ctlList = (CListCtrl&) GetListCtrl();
// set the style of the list control
ModifyStyle ( LVS_TYPEMASK, LVS_REPORT);
ListView_SetExtendedListViewStyle (m_hWnd, LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES );

that set it so columns cant be moved

if you use

ListView_SetExtendedListViewStyle (m_hWnd, LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES | LVS_EX_HEADERDRAGDROP);

then you can move the columns

hope this helps

Re: ListCtrl

heju18-Jul-03 1:13

heju

18-Jul-03 1:13

Thank you for your tip, but
can I realize that without ListView?

I have only a membervariable type listctrl in my class CBPageDlg : public CPropertyPage.

Re: ListCtrl

Dominik Reichl18-Jul-03 2:01

Dominik Reichl

18-Jul-03 2:01

The terms "control" and "view" are confusing here. Smile | :)

The ListView_SetExtendedStyle macro works perfectly on "normal" CListCtrls.

Btw, you can also use (I recommend this) CListCtrl::SetExtendedStyle [DWORD SetExtendedStyle(DWORD dwNewStyle);].

Big Grin | :-D

-Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

SQL Server Connection Fails

HemantR...17-Jul-03 23:16

HemantR...

17-Jul-03 23:16

Hello Friends,
In my application I am using SQL Server's database. My database is already uploaded on Internet SQL server.

Hear is my problem:
If I dont have SQL server in my computer, then I get connection error when I am trying to open the connection with this server.
BUT if I have SQL server in my computer then it gets connected with that SQL server on Internet and works fine.

What is problem in this?

If some one knows the solution for this, then please tell me

Thanks Big Grin | :-D

Re: SQL Server Connection Fails

Blake Miller18-Jul-03 5:36

Blake Miller

18-Jul-03 5:36

You probably are initially lacking the client connectivity components on your local computer, but you then get them when you install the SQL server locally.

You might also try just installing MDAC locally and then see if you can connect to the remote SQL server.

C++/MFC/InstallShield since 1993

CString problem removing chars

si_6917-Jul-03 22:36

si_69

17-Jul-03 22:36

Hi All

Can u help i have a sting which contains both Alpha and Numeric Characters

eg. mystring = "344RT",

however i want to remove all numeric characters

so im left with mystring = "RT"

does ne1 know the best function for doing so

thanks in advance

si

Re: CString problem removing chars

Dominik Reichl17-Jul-03 23:31

Dominik Reichl

17-Jul-03 23:31

I would do the brute-force way:

mystring.Remove('0');
mystring.Remove('1');
mystring.Remove('2');
mystring.Remove('3');
mystring.Remove('4');
mystring.Remove('5');
mystring.Remove('6');
mystring.Remove('7');
mystring.Remove('8');
mystring.Remove('9');

Perhaps not the best solution, but it works Big Grin | :-D

Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

Re: CString problem removing chars

RChin18-Jul-03 4:25

RChin

18-Jul-03 4:25

Not tested, but this is what I initially thought of :

<br />
#include <ctype.h> // contains the isalpha() function<br />
CString strAlphaOnly;<br />
TCHAR cMyString[] = _T("344RT");<br />
<br />
for(int nCount=0; nCount < len(cMyString); nCount++)<br />
 if( isalpha( cMyString[nCount] ) )<br />
  strAlphaOnly+=cMyString[nCount];<br />

"..Even my comments have bugs!"

Inspired by Toni78

window does not hide if it is minimized and ShowWindow(SW_HIDE) is called

FASTian17-Jul-03 22:05

FASTian

17-Jul-03 22:05

i am trying to hide a window after using the animate window function. The code is as follows:

<br />
//animate the window<br />
AnimateWindow(m_hWnd,500,AW_HIDE | AW_SLIDE | AW_VER_POSITIVE);<br />
<br />
//hide the current window<br />
this->ShowWindow(SW_HIDE);<br />

am not sure why this isnt working Confused | :confused:

GDI+ and Effect class'

cmk17-Jul-03 22:02

cmk

17-Jul-03 22:02

The GDI+ Bitmap class has an ApplyEffect method and Graphics has a DrawImage, both of which take a pointer to an Effect based class.

Although the docs relating to Effect's are marked prelim they seem to imply that this functionality exists in the 1.1 GDI+ API accross all OS's.

1. How do i know what version of GDI+ i have when the dll is version 5.1.3097.0 and the headers in the latest PlatformSDK have no Effect definitions anywhere. Went through all the GDI+ headers and no metion of version anywhere. Return from GdiplusStartup says version is 1, but field is an ulong so couldn't represent 1.1 anyways.

2. Is GDI+ 1.1 a part of the .NET release (as i am still using VC++ 6 i wouldn't see it then)

3. All searches on MS (and the web) only turn up the 5.1.3097.0 version dll.

4. Why is there air ?

...cmk

Save the whales - collect the whole set

About some terms

FlyingDancer17-Jul-03 21:38

FlyingDancer

17-Jul-03 21:38

Here are some common terms:
1.DECLARE_DYNAMIC and IMPLEMENT_DYNAMIC
2.const CStudent& operator=(const CStudent& s)
{
...
}
3.BOOL operator ==(const CStudent& s) const
{
...
}

Can you tell me how to master these terms?

Re: About some terms

Mike Dimmick17-Jul-03 22:44

Mike Dimmick

17-Jul-03 22:44

DECLARE_DYNAMIC and IMPLEMENT_DYNAMIC are MFC macros. You must use them if you want MFC's DYNAMIC_DOWNCAST macro, the RUNTIME_CLASS macro, and the IsKindOf method to work. Your class must be derived from CObject.

If using a newish version of C++ (VC 6.0 and later, IIRC), and not interfacing with older MFC code that uses these macros, I suggest sticking to the standard C++ dynamic_cast cast operator and the typeid operator. Note that these can't be used on Windows CE prior to version 4.0, as they require runtime library support that isn't available on CE 3.0 and below.

If you want to use DECLARE_DYNCREATE or DECLARE_SERIAL in a derived class, you must use at least DECLARE_DYNAMIC in your base class (otherwise your code will not compile). DECLARE_DYNCREATE enables dynamic creation of objects by MFC: this is required by the document/view framework for creation of document and view objects. DECLARE_SERIAL provides a default implementation of an operator << and operator >> for your class - this is used for object serialisation to a CArchive.

See the documentation topic CObject Class: Deriving a Class from CObject[^] for more information on these macros.

Item 2:

The operator keyword introduces a method that replaces the operator symbol mentioned: i.e. operator= replaces the normal behaviour of the = operator. If operator= is written as a member function, it will be used if the left-hand side of the assignment expression is of the type the operator= is a member of, and the right-hand side is of the type mentioned in the argument. Assuming that this operator= is defined in CStudent, this operator= will be used whenever one CStudent object is assigned to another.

The use of const here indicates that the return value of operator= cannot be modified by the caller, in the same way that the const on the argument indicates that s cannot be modified within the function.

Style note: In accordance with the guidance of 'do as the ints do', operator= should return a CStudent&, not a const CStudent&. See Effective C++[^] for more guidelines on implementing operator=.

Item 3:

operator== has much the same meaning as in #2, but this time we're replacing the == equality operator. We're comparing this against s.

The const at the end of the declaration says something different. It tells the compiler that this function may be called on CStudent objects that are const, i.e. they're read-only. Functions declared const may not modify member variables, unless they're declared mutable.

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