C / C++ / MFC

Sending messages to another application

1-Oct-02 0:44

http://www.codeproject.com/miscctrl/customcontrol.asp

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Richard Lewis1-Oct-02 0:06

Richard Lewis

1-Oct-02 0:06

Hi!

I was implementing the On-screen keyboard application that comes with Windows. I have two queries regarding this:

1. I have made my app 'always on top', but the problem is setting focus to the application just below this one. I am aware that SetFocus is useless in this case. I want to find a way to this using GetNextWindow

2. Let's assume notepad is going to be receiving keystrokes via this on-screen keyboard app. Can anyone send me code to this. I have tried something like:

DWORD dwProcessID;
::GetWindowThreadProcessId(hForeground,&dwProcessID);

::PostThreadMessage(dwProcessID, WM_KEYDOWN, 65, 1);
::PostThreadMessage(dwProcessID,WM_CHAR, 65,1);
::PostThreadMessage(dwProcessID, WM_KEYUP, 65,1);

But this doesnt help.

Any help will be greatly appreciated.
Thanks for your time

Richard

jmkhael1-Oct-02 0:25

1-Oct-02 0:25

Better to use FindWindow or FindWindowEx and SendMessage or PostMessage

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

jmkhael1-Oct-02 0:26

1-Oct-02 0:26

Good link also
http://www.codeproject.com/dialog/keystroke.asp

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Richard Lewis1-Oct-02 0:34

Richard Lewis

1-Oct-02 0:34

Thanks so much for your quick reply, Papa (is that ur name ?) Big Grin | :-D

jmkhael1-Oct-02 0:42

Win32 WinSock tutorial anyone?

1-Oct-02 0:42

Just a nick, my name is Johnny Smile | :)

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Redeemer-dk30-Sep-02 23:52

Redeemer-dk

30-Sep-02 23:52

For Win32 applications, not MFC Smile | :)

thanks all!

Re: Win32 WinSock tutorial anyone?

carrie1-Oct-02 0:44

carrie

1-Oct-02 0:44

The majority of the articles on CodeProject for sockets programming use the Win32 Sockets functions rather than hte MFC CSocket & CAsyncSocket, its only the user-interface that is built in MFC usually. So you can grab most of the socks code and build your win32 app around what you can pick up.

Is it possible to rename a project in VC .NET?

Anonymous30-Sep-02 23:40

Anonymous

30-Sep-02 23:40

can't seem to find it...

thanks.

Microsoft form 2.0 Label

mzakarni30-Sep-02 23:03

mzakarni

30-Sep-02 23:03

Dear All,
Good Day ALL,

I have a problem in a program am working on, am using an OCX from microsoft in a MFC program this OCX is "Microsoft form 2.0 Label" the problem is when i run the program on my machine Background color of the label is the same as the BackGround color of the Main Form which is correct;But when i run it on Different Machine the Background color changes from Main Form Color plz help me how can i correct this.

Thank you all for help.

Best Regards,
Mohammad Zakarni

Re: Microsoft form 2.0 Label

Nitron1-Oct-02 3:11

Nitron

1-Oct-02 3:11

In the properties of the control, set the background color to:

-2147483633

(it'll change it to hex for you)

or you can do it via code:

CLabelControl* l = &this->m_yourLabel;
l->SetBackColor((long)GetSysColor(COLOR_3DFACE));

Nitron
_________________________________________--
message sent on 100% recycled electrons.

Re: Microsoft form 2.0 Label

mzakarni1-Oct-02 21:16

mzakarni

1-Oct-02 21:16

Dear Nitron,
Thank you very much it worked... Smile | :)

Attaching multiple controls to the system image list

Woody Green30-Sep-02 22:44

Woody Green

30-Sep-02 22:44

Hi,

I am working on a program in which multiple controls use the system image list. My code looks like this:

<br />
	SHFILEINFO sfi;<br />
	HIMAGELIST hSystemImageList = (HIMAGELIST) SHGetFileInfo("a.txt", 0, &sfi, sizeof(SHFILEINFO),<br />
                                                          SHGFI_SYSICONINDEX | SHGFI_SMALLICON);<br />
	// this attach is ok, no errors<br />
	m_control1.Attach(hSystemImageList);<br />
	// this attach is not ok, program crashes, debugging shows this statement<br />
	m_control2.Attach(hSystemImageList);<br />

Attaching the first control to the system image list works ok. Attaching the second control results in a crash. Debugging points to the system image list attach.

Does anyone know what the problem is and how to solve it?

Thanks,
Woody

'open with' using shell

steffo230-Sep-02 22:27

steffo2

30-Sep-02 22:27

Problem: I would like to implement the following in MFC: Open a file using a program (for example, open a text file using Excel). That is, the same functionality as right-click on a file, select 'open with' and select the program. The file type will not be associated with this program.

I have succeded using ShellExecuteEx, and starting the executable file with the text file as parameter, but the limitation is that I have to know the locatation of the program executable, which can vary.

Grateful for help

/Stefan

Re: 'open with' using shell

Stephane Rodriguez.30-Sep-02 22:43

Stephane Rodriguez.

30-Sep-02 22:43

I tried Start->Run "excel.exe c:\mydoc.xls" and it worked fine, without adding at all the app path. So I am not sure you actually need the app path.

In case you need it (for fun), just look up the registry HKLM\Software\Microsoft\Windows\CurrentVersion\App Paths.

sometimes it helps to look at the IL generated code
a MS guy on develop.com "answering" .NET issues

Array of CArray

ooosawaddee330-Sep-02 21:55

ooosawaddee3

30-Sep-02 21:55

I declare this below Array.

------------------------------------------------------------------
CArray<unsigned char,="" unsigned="" char=""> m_data;
typedef CArray<unsigned char,="" unsigned="" char=""> CCharArray;
CArray<cchararray,cchararray&> m_Array;
------------------------------------------------------------------

I want to ask how to add m_data to m_Array.Which command I need to use?

jmkhael30-Sep-02 22:02

30-Sep-02 22:02

SetAt, operato [] or Add, u chose

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

30-Sep-02 22:52

Thank you for your answer Papa. But it has some problem while compiling. I write this below program.

------------------------------------------------------------------------
typedef CArray<unsigned char,="" unsigned="" char&=""> CCharArray;
CArray<cchararray,cchararray&> m_Array;
CArray<unsigned char,="" unsigned="" char&=""> NewElement;

unsigned char a='a';
unsigned char b='b';

NewElement.Add(a);
NewElement.Add(b);
m_Array.Add(NewElement);
------------------------------------------------------------------------

While compiling there are this error message happen at this line

m_Array.Add(NewElement);

c:\program files\microsoft visual studio\vc98\mfc\include\afxtempl.h(443) : error C2582: 'CArray<unsigned char,unsigned="" char="" &="">' : 'operator =' function is unavailable
c:\program files\microsoft visual studio\vc98\mfc\include\afxtempl.h(1566) : while compiling class-template member function 'void __thiscall CArray<class carray<unsigned="" char,unsigned="" char="" &="">,class CArray<unsigned char,unsigned="" char="" &=""> &>::SetAtGrow(int,class CArray<unsigned char,unsigned="" char="" &=""> &)'
Error executing cl.exe.

BallotExtractandPrint.exe - 1 error(s), 7 warning(s)

Do you know how to solve my problem?

jmkhael30-Sep-02 23:02

30-Sep-02 23:02

try:

CCharArray NewElement;
CArray <CCharArray,CCharArray> m_Array;

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Alexandru Savescu30-Sep-02 23:24

Alexandru Savescu

30-Sep-02 23:24

I strongly suggest you use a std::vector of std::vector

Best regards,
Alexandru Savescu

SetCooperativeLevel

Ta_Tee47330-Sep-02 21:50

Ta_Tee473

30-Sep-02 21:50

I would like to using the SetCooperativeLevel function in window mode

Example Fullscreen mode => DDSCL_EXCLUSIVE|DDSCL_FULLSCREEN
result => I can use the CreateSurface function(return of CreateSurface function DD_OK).
Example Window mode => DDSCL_NORMAL
result => I can't use the CreateSurface function(return of CreateSurface function DDERR_NOEXCLUSIVEMODE).

What I do?
Example Window mode => (what parameters?)

jmkhael30-Sep-02 22:00

30-Sep-02 22:00

U must add DDSCL_EXCLUSIVE when DDERR_NOEXCLUSIVEMODE is returned, so i guess

DDSCL_NORMAL | DDSCL_EXCLUSIVE

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Ta_Tee47330-Sep-02 22:08

Ta_Tee473

30-Sep-02 22:08

DSCL_NORMAL
This flag cannot be used with the DDSCL_ALLOWMODEX, DDSCL_EXCLUSIVE, or DDSCL_FULLSCREEN flags.

Stephane Rodriguez.30-Sep-02 22:13

Stephane Rodriguez.

30-Sep-02 22:13

In Window mode, you don't call SetCooperativeLevel at all.

sometimes it helps to look at the IL generated code
a MS guy on develop.com "answering" .NET issues