C / C++ / MFC Discussion Boards

Diddy1-Jun-04 1:08

1-Jun-04 1:08

lol. Would be them two wouldn't it.

Well, your KEYUP/DOWN handler will and should work for all other keys.

Not however, Tab and return, which are dialog box navigation keys. The system handles these in a different way

"The WM_GETDLGCODE message is sent to the window procedure associated with a control. By default, the system handles all keyboard input to the control; the system interprets certain types of keyboard input as dialog box navigation keys. To override this default behavior, the control can respond to the WM_GETDLGCODE message to indicate the types of input it wants to process itself."

In other words, you'll never get a KEYUP/DOWN for Tab/return as you get a WM_GETDLGCODE which returns DLGC_DEFPUSHBUTTON/DLGC_WANTTAB depending

Re: Capture Keyboard Input

sweep1231-Jun-04 1:13

sweep123

1-Jun-04 1:13

So what about Andy's solution of using PreTranslateMessage, would that work?

Or I am stuck!?!

Re: Capture Keyboard Input

Anthony_Yio1-Jun-04 1:26

Anthony_Yio

1-Jun-04 1:26

What they are trying to say is some other alternatives are error prone, subclass your CEdit is better like this article

http://www.codeproject.com/editctrl/NumEditCtl.asp

Sonork 100.41263:Anthony_Yio

Re: Capture Keyboard Input

dart131-Jun-04 1:32

dart13

1-Jun-04 1:32

The solution Andy Q gave you should work with tab and enter keys. I used a similar technique to trap Enter key in a form view.

<br />
BOOL CMyFormView::PreTranslateMessage(MSG* pMsg) <br />
{<br />
	// keyboard input for 'enter' and 'esc'<br />
	if(pMsg->message==WM_KEYDOWN) <br />
	{ <br />
		if(pMsg->wParam == 0x0d)  // if Enter pressed<br />
		{<br />
			//your handler<br />
			return TRUE;<br />
		}<br />
		else if(pMsg->wParam == 0x1b)  // if Esc pressed<br />
		{<br />
	                //...<br />
			return TRUE;<br />
		}<br />
	}			<br />
		<br />
return CFormView::PreTranslateMessage(pMsg);	<br />
}<br />

How to launch .job file in VC++

kt wu31-May-04 23:03

kt wu

31-May-04 23:03

For example, I want to launch the below file

C:\Windows\Tasks\Low Battery Alarm Program.job

What function can I use to launch the file in VC++ ?

Re: How to launch .job file in VC++

Anthony_Yio1-Jun-04 1:03

Anthony_Yio

1-Jun-04 1:03

Can it be executed by just double clicking on it?

If can, you can use ShellExecute(...) to start it, I think.

Sonork 100.41263:Anthony_Yio

Problem in impersonating COM control

amit131331-May-04 22:35

amit1313

31-May-04 22:35

Hi,
Through my Windows service i want to create a COM control under some specific user credentials.Do achive this i am doing following set of activities.

a)Calling impesonation API
b)Laoding user profile,environment vaiables for impersonated account
c)Creating a browser control
d)Setting a authentication information that will be used to make calls on
the browser control using CoSetProxyBlanket() API

Even after following above steps, control is getting created under SYSTEM user account.Do need to use to do anything extra like setting DACL?.
What could be the problem?.

thanx in advance. Smile | :)

Here with i am attaching the code
//***************************************

HANDLE hProcToken;
IWebBrowser2 *g_WebBrowser2;
LPSTREAM g_lpStream;

void InitialiseControl()
{

if (!LogonUser( szUserName,
szDomain,
szPassword,
LOGON32_LOGON_NETWORK,
LOGON32_PROVIDER_DEFAULT,
&m_hToken))
{
if (ImpersonateLoggedOnUser(m_hToken))
{
//I am loading user profile,environment vaiables for impersonated
//account and setting WindowStation/Desktop to "winStat0/Desktop"

CoInitialize(NULL);

//Create IBrowserControl instance
HRESULT hr = CoCreateInstance( CLSID_InternetExplorer,NULL,
CLSCTX_INPROC_SERVER,IID_IWebBrowser2,
(void**)&g_WebBrowser2 );

hr = CoSetProxyBlanket(g_WebBrowser2,RPC_C_AUTHN_WINNT,
RPC_C_AUTHZ_NONE, NULL,
RPC_C_AUTHN_LEVEL_DEFAULT,
RPC_C_IMP_LEVEL_IMPERSONATE, // Allow impersonation
NULL,EOAC_DYNAMIC_CLOAKING);

//Marshal interface pointer as browser control is single threaded control
hr = CoMarshalInterThreadInterfaceInStream(
IWebBrowser2 ,g_WebBrowser2,
&g_lpStream );
}
}
} //End Of InitialiseControl

//This method loads HTML page and prints to default printer,this method is called from seperate thread
void Print( char* l_strFileName )
{
if (ImpersonateLoggedOnUser(m_hToken))
{
COleVariant vaURL( l_strFileName );
COleVariant noArg;

CoInitialize(NULL);

//Unmarshal interface pointer
hr = CoGetInterfaceAndReleaseStream( (IStream*)g_lpStream,
IID_IWebBrowser2,(void**)&g_WebBrowser2 );

hr = g_WebBrowser2->Navigate2(vaURL,&noArg,&noArg,
&noArg,&noArg);
//Wait till document gets loaded completely
hr = g_WebBrowser2->ExecWB (OLECMDID_PRINT,
OLECMDEXECOPT_DONTPROMPTUSER
,&noArg,&noArg);

}
}

Re: Problem in impersonating COM control

Anthony_Yio1-Jun-04 1:58

Anthony_Yio

1-Jun-04 1:58

The COM register utility allow you to activate activeX or COM server based on user. Normal regsvr32 can't do that but this one can.

You have to thank Rama Krishna for his wonderful article.

http://www.codeproject.com/w2k/regsvrex.asp

Sonork 100.41263:Anthony_Yio

Enable/Disable On Apply Button

Rajesh_K_Sharma31-May-04 22:13

Rajesh_K_Sharma

31-May-04 22:13

Hi all,
I am a Beginner in Vc++. I made some dialoge box which includes Three Command button, namely OK,Cancel any Apply.
I want to do operation like Enable/Disable on Apply Button.
So,Please provide me some idea to this work.

Regards
Rajesh

rajesh

Re: Enable/Disable On Apply Button

A_Yakout31-May-04 22:49

A_Yakout

31-May-04 22:49

this is the code for want you want about Apply Button
note:IDC_Apply is the id of your Apply Button
CButton* ApplyButton ;
ApplyButton =(CButton*)GetDlgItem(IDC_Apply);
ApplyButton->EnableWindow(false);
ApplyButton->EnableWindow(true);

Re: Enable/Disable On Apply Button

Diddy1-Jun-04 0:58

Diddy

1-Jun-04 0:58

Hmmmm

One small thing - EnableWindow takes a BOOL, not a bool.

EnableWindow(false) is not the same as EnableWindow(FALSE) which is what it should be.

Other thing, the 'ApplyButton=(CButton*)GetDlgItem' works only because of MFC. Most people, including me, are gulity of doing it this way - but the recomened MFC way (if you dont belive me, read MSDN) is actually like this.

CButton but;
but.Attach(GetDlgItem(IDC_Apply)->GetSafeHwnd());
but.EnableWindow(FALSE);
but.Detach();

More code I know, but your not relying on the evils of non RTTI-safe downcasting.

Re: Enable/Disable On Apply Button

toxcct31-May-04 23:10

toxcct

31-May-04 23:10

the function EnableWindow allow you to do that.

you can find it in one of the base classes of your control (here, a CButton) : Cwnd

BOOL Cwnd::EnableWindow(BOOL bEnable = TRUE);
<font style="color:green;">// If bEnable is TRUE, the window will be enabled. otherwise, the window is disabled.

TOXCCT >>> GEII power

Compact mode anyone??

FASTian31-May-04 22:06

FASTian

31-May-04 22:06

I need some help designing a UI which supports both compact as well as full mode. Any ideas or articles written about this will be greatly appreciated. Also since i have a time constraints which language should i go for. Can code in VB,VC and C# Smile | :)

but am not a UI guru.

Re: Compact mode anyone??

David Crow1-Jun-04 3:59

David Crow

1-Jun-04 3:59

FASTian wrote:
I need some help designing a UI which supports both compact as well as full mode.

What do you mean by "compact" and "full" mode?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Compact mode anyone??

FASTian1-Jun-04 20:54

FASTian

1-Jun-04 20:54

what i mean by compact mode is that while in compact mode we only show a limited UI meaning that it shows only neccessary values whereas full mode means that i might want to show graphs and other UI related material which is only adds on to the application.

Re: Compact mode anyone??

David Crow2-Jun-04 2:50

David Crow

2-Jun-04 2:50

Here are two different ways:

http://www.codeproject.com/dialog/dlgboxtricks.asp (see section titled Expanding and Contracting your dialog boxes)

http://www.codeproject.com/dialog/dlgexpand.asp

I prefer the latter.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Compact mode anyone??

FASTian2-Jun-04 21:07

FASTian

2-Jun-04 21:07

thanks for the help Smile | :)

any one have Network programming (Microsoft Press)in VC++ soft copy or other materail

Zeeshan Bilal31-May-04 21:04

Zeeshan Bilal

31-May-04 21:04

hi.

any one have Network programming (Microsoft Press)in VC++ soft copy ... other help abut it..

thanx

Re: any one have Network programming (Microsoft Press)in VC++ soft copy or other materail

Giles31-May-04 22:15

Giles

31-May-04 22:15

Yes, and before you ask, you'll need to go and buy it, as it does not come with an MSDN style electronic copy of the book on CD.

Re: any one have Network programming (Microsoft Press)in VC++ soft copy or other materail

Nirav Doshi31-May-04 22:26

Nirav Doshi

31-May-04 22:26

Giles wrote:
it does not come with an MSDN style electronic copy of the book on CD

Network Programming in Microsoft Windows is available as a soft copy (CHM). I have it... It is about 2.2 MB

- Nirav

* Don't wish it was easier, wish you were better! *

Re: any one have Network programming (Microsoft Press)in VC++ soft copy or other materail

Zeeshan Bilal31-May-04 23:19

Zeeshan Bilal

31-May-04 23:19

Hi,,
PLZ send me CHM copy
or its link at zahid_ash@yahoo.com

thanx

Re: any one have Network programming (Microsoft Press)in VC++ soft copy or other materail

Nirav Doshi1-Jun-04 0:09

Nirav Doshi

1-Jun-04 0:09

Sent it... Check your mailbox and acknowledge!

* Don't wish it was easier, wish you were better! *

how to merge two cells in the MSFlexGrid

yingkou31-May-04 20:52

yingkou

31-May-04 20:52

now I am using MSFlexGrid to show some datas and want to merge two rows into one row(two coloums into one coloum),codes below:

m_FlexGrid.SetCols(4);
VARIANT var;
var.vt=VT_I2;
for(int i=1;i<5;++i)
{
var.intVal=i;
m_FlexGrid.AddItem("Test",var);
}
m_FlexGrid.SetMergeCells(1);
m_FlexGrid.SetMergeRow(0,0);
m_FlexGrid.SetMergeRow(1,1);
m_FlexGrid.SetMergeRow(2,1);

it is the first time to use it, and not found some materials.so please help me,thanks a lot

disable copy/paste

narrakumuda31-May-04 20:26

narrakumuda

31-May-04 20:26

hello friends,
i wish to Shell execute/create process either a word doc/pdf and then restrict cut/copy/paste/save/save as /print options (both menu & key shortcuts).
thank u very much
kumuda

Read long lines from cin?

Indrawati31-May-04 18:42

Indrawati

31-May-04 18:42

Hi Could someone tell me how I can get an arbitrary-length line from std::cin without fear of buffer overrrun, while still accomodating very long lines? I can use cin.getline(), but that way I have to define a buffer with a fixed size first.
Thanks!

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