C / C++ / MFC Discussion Boards

sanskypotov9-Mar-03 21:50

9-Mar-03 21:50

Hi ,
I am trying to set the WS_EX_LAYERED and WS_EX_TRANSPARENT
for child window( using WS_CHILD ), but am unable to do so.
Can someone tell me how can it achived.
Thanks,
Sansky Big Grin | :-D

John 3:16

For God so loved the world,

that he gave his only begotten Son ( Jesus Christ ) ,

that whosoever believeth in him should not perish, but have everlasting life.

Re: Set the WS_EX_LAYERED for child window

Brian Shifrin10-Mar-03 2:20

Brian Shifrin

10-Mar-03 2:20

1) ModifyStyleEx(NULL, WS_EX_TRANSPARENT );
or you can just call SetWindowPos directly....

Use Spy++ to verify styles.

Re: Set the WS_EX_LAYERED for child window

sanskypotov10-Mar-03 23:51

sanskypotov

10-Mar-03 23:51

Thanks a lots,
Works cool Smile | :)

Sansky

John 3:16

For God so loved the world,

that he gave his only begotten Son ( Jesus Christ ) ,

that whosoever believeth in him should not perish, but have everlasting life.

packet info

summo9-Mar-03 20:42

summo

9-Mar-03 20:42

any body know

Is it neccessary to make Psuedo Header to send TCP Packet.
Can I send the packet without it.
Can I use
SOCKET s = socket(AF_INET, SOCK_RAW, IPPROTO_TCP);
directly
instead of SOCKET s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);

Plz help me and tell me the way i can do without it because the packet is not been sent on to the network using Psuedo Header.

Reply me soon

Re: packet info

Johnny ²9-Mar-03 21:48

Johnny ²

9-Mar-03 21:48

If you dont want the TCP headers then create a datagram socket (SOCK_DGRAM, protocol 0) and then you can manage everything yourself. From memory, the SOCK_RAW is only available to privileged programs (although this may not apply in a windows environment)

Re: packet info

summo9-Mar-03 22:27

summo

9-Mar-03 22:27

I want to use the TCP headers but the tcp packet is not going on to the network.
Plz if you can help me in sending the TCP packet.
Any website,code for sending the TCP packet.

Reply me soon

Re: packet info

Johnny ²9-Mar-03 22:36

Johnny ²

9-Mar-03 22:36

If you set up the socket correctly then the TCP headers will always appear on the network, you dont need to create pseudo ones or even know they are there. I always use this:

int handle = socket (AF_INET, SOCK_STREAM, 0);

Visual C++ .NET bug?

Davide Pizzolato9-Mar-03 20:21

Davide Pizzolato

9-Mar-03 20:21

this code works if compiled with VS6, but gives wrong results with VC++.NET

int Y,U,V,R,G,B;
Y = lYUVColor.rgbRed;
U = lYUVColor.rgbGreen - 128;
V = lYUVColor.rgbBlue - 128;

R = (int)(Y + 1.403 * V);
G = (int)(Y - 0.344 * U - 0.714 * V);
B = (int)(Y + 1.770 * U);

replaceing the declaration of Y, everything is ok.

int U,V,R,G,B;
float Y = lYUVColor.rgbRed;
U = lYUVColor.rgbGreen - 128;
V = lYUVColor.rgbBlue - 128;

R = (int)(Y + 1.403 * V);
G = (int)(Y - 0.344 * U - 0.714 * V);
B = (int)(Y + 1.770 * U);

where is the bug? in the compiler or in the code?

Re: Visual C++ .NET bug?

Hesham Amin9-Mar-03 21:14

Hesham Amin

9-Mar-03 21:14

Hi,,
I think the problem is in the code Frown | :(

Y + 1.403 * V<br />
Y - 0.344 * U - 0.714 * V<br />
Y + 1.770 * U

(do you write a jpeg decoder/encoder?)

you use U (an int) and Y (an int) so te hole equation uses ints which means loss of accuracy (int truncates what comes after the period)

so when you use Y (float) the compiler does not truncate them...

Re: Visual C++ .NET bug?

Davide Pizzolato10-Mar-03 1:52

Davide Pizzolato

10-Mar-03 1:52

hspc wrote:
do you write a jpeg decoder/encoder?
it's for CxImage

you'are right, but 1.403 is not an integer, so the * operator should give a floating point result, while in this case the result seems an integer. Confused | :confused:

in fact, another way to fix the problem is writing the constants with the "f" suffix: 1.403f and the routine works

VSS API Interface ?

vikramj9-Mar-03 20:21

vikramj

9-Mar-03 20:21

Does any one knows where can i find the details / help about the API interface of VSS. ??

Any sample programs, tutorials etc. ??

I looked into MSDN and found only 1 page of documentation Frown | :(

I want to devlop an Addin which listens to the events of VSS(client / server) and performs some actions.

Please help. Confused | :confused:

thanks and regards.

- Vikram

Re: VSS API Interface ?

Baris Kurtlutepe10-Mar-03 0:43

Baris Kurtlutepe

10-Mar-03 0:43

Have you read Visual SourceSafe 6.0 Automation in MSDN? It's a huge article and covers much about the topic I guess.

String Table used in DLL

stevenson9-Mar-03 20:01

stevenson

9-Mar-03 20:01

Hi,

I insert a string table in my dll resource eidtor, and then export a fuction from this dll. in that function one of string IDs in the string table is showed by a Messagebox. The problem is: this message box shows nothing.

the following is my code:

Inside DLL

<br />
#include "Resource.h"<br />
<br />
__declspec(dllexport) void LoadMaya();

void LoadMaya()<br />
{<br />
	CString strMaya;<br />
<br />
	strMaya.LoadString(IDS_MAYA);<br />
	AfxMessageBox(strMaya);<br />
<br />
}

Inside EXE

#include "..\MyDll\Maya.h"<br />
<br />
void CDllExeDlg::OnOK() <br />
{<br />
	// TODO: Add extra validation here<br />
	LoadMaya();<br />
	<br />
	CDialog::OnOK();<br />
}

<br />
Inside String Table

ID Value Caption
------------------------------------
IDS_MAYA 100 Maya Culture

Please single out the bug for me, thank you

Extreme programming. Do the No.1

Re: String Table used in DLL

Hans Ruck9-Mar-03 21:39

Hans Ruck

9-Mar-03 21:39

Try:

void LoadMaya()
{
  CString strMaya;

  HINSTANCE hsav= AfxGetResourceHandle(); 
  AfxSetResourceHandle(theApp.m_hInstance); // theApp is CWinApp-derived

  strMaya.LoadString(IDS_MAYA);
  AfxMessageBox(strMaya);

  AfxSetResourceHandle(hsav); // put-back
}

rechi

Windows Media Format SDK Problem

RaajaOfSelf9-Mar-03 19:01

RaajaOfSelf

9-Mar-03 19:01

I have a problem with windows Medai Format SDK API .Iam trying to find if a ASF file is valis file or not .

IWMReader *m_pReader;
WCHAR wszFullUrl[ MAX_PATH ];
/*..create reader*******
.............
........*/

Here this represents a callback object
hr = m_pReader->Open(wszFullUrl , this, NULL );
if ( SUCCEEDED( hr ) )
{
//WaitForSingleObject( m_hOpenEvent, INFINITE );
_tprintf( _T( "successfull to open (hr=0x%08x)\n"), hr );
hr = m_hrOpen;
}
if ( NS_E_NO_STREAM == hr )
{
_tprintf( _T( "Waiting for transmission to begin...\n") );
//WaitForSingleObject( m_hOpenEvent, INFINITE );
hr = m_hrOpen;
}
if ( FAILED( hr ) )
{
_tprintf( _T( "failed to open (hr=0x%08x)\n"), hr );
return( hr );
}

When a give a invalid file name ,it gives the following output

successfull to open (hr=0x00000000)
failed to open (hr=0x80070002)

WHy does it give both the error messages ??Can somebody help me on this ??

GradientProgressCtrl

sunsam9-Mar-03 17:22

sunsam

9-Mar-03 17:22

Hi All,

I am trying to use a gradient control in my mfc app. And for that I downloaded the code from this website

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

I am using the GradientProgressCtrl.cpp class to implement in my mfc program. NOw one question is, since I am using the vertical control, how am I supposed to show the filling from BOTTOM TO TOP. The sample code shows the filling from top to bottom. I have looked into the code but nothing happened Frown | :(

.

MY xyz.cpp uses it in the foll way where m_progbar is the instantiation of GradientProgressCtrl class. m_progbar is declared in xyz.h file.
m_Progbar.ShowPercent(TRUE);
m_Progbar.SetStep(20);
m_Progbar.StepIt();

My problem is that, after completion of 100 in the bar ctrl. I have to restart the app as filling of the bar stops after it completes the filling of the control.

I have triied lookin in the code but no use Frown | :(

Can you please help me with this.??

Thank a lot!!!

Visual SafeSource

Anonymous9-Mar-03 12:49

Anonymous

9-Mar-03 12:49

This isn't really a programming question I'm just wondering if visual safesource comes with either Visual Studio 6 or Visual Studio.net or both.

thanks you for your help

Re: Visual SafeSource

Anders Molin9-Mar-03 13:20

Anders Molin

9-Mar-03 13:20

It's called Visual SourceSafe Wink | ;)

It comes with VS .NET Enterprise Edition (and VS6 Enterprise Edition), and you can get it as a stand-alone product.

- Anders

Money talks, but all mine ever says is "Goodbye!"

How to add shell32.lib to project...

JoeSox9-Mar-03 12:17

JoeSox

9-Mar-03 12:17

I am trying to use SHGetFolderLocation and keep getting
error C2065: 'SHGetFolderLocation' : undeclared identifier Mad | :mad:

I have tried linking shell32.lib and have the header #include <shlobj.h>
but I am doing something wrong.
I am using VC++6.0 sp5 Win XP, Thanks

I have been coding all morning, I am going to post this question and take a break hopefully someone can help. Hopefully I just need some fresh eyes. Thanks.

Later,
JoeSox
www.joeswammi.com
Killing In The Name[^]

Re: How to add shell32.lib to project...

Anders Molin9-Mar-03 12:24

Anders Molin

9-Mar-03 12:24

Try #define WINVER 0x0500 in stdafx.h

SHGetFolderLocation needs shell32.dll version 5.0, and needs Win ME or 2K, or newer, to run...

- Anders

Money talks, but all mine ever says is "Goodbye!"

Handle error???

cemlouis9-Mar-03 10:49

cemlouis

9-Mar-03 10:49

Hi there I import a Activex Control but when i try to compile it the debugger gives an error which is "Unhandled exception at 0x5046b2c4 in FirstChart.exe: 0xC0000005: Access violation reading location 0x5046b2c4."

What is the problem???

MDI Views...

Anonymous9-Mar-03 9:36

Anonymous

9-Mar-03 9:36

Hello

I have a CRichEditView based MDI application.

I would like to know how to access the GetRichEditCtrl() and its functions (such as ReplaceSel) when I'm in another class such as MainFrm

What I want to do, in short:

A non-modal Dialog box (using the Create and ShowWindow functions) to be accessible by both classes MainFrm and CHTMLEditorView (my rich edit view class)

Thanks a lot

Re: MDI Views...

Brian Shifrin10-Mar-03 2:33

Brian Shifrin

10-Mar-03 2:33

>I would like to know how to access the GetRichEditCtrl() and its functions
>(such as ReplaceSel) when I'm in another class such as MainFrm

Following three statements give you your view from anywhere...
CMDIFrameWnd *pFrame = (CMDIFrameWnd *)AfxGetApp()->m_pMainWnd;
CMDIChildWnd *pChild = (CMDIChildWnd *) pFrame->GetActiveFrame();
CRichEditView *pView = (CRichEditView *) pChild->GetActiveView();

Obviously if you are calling from MDI you can use
CMDIChildWnd *pChild = (CMDIChildWnd *) GetActiveFrame();
CRichEditView *pView = (CRichEditView *) pChild->GetActiveView();

or simply
CRichEditView *pWnd = (CRichEditView *)MDIGetActive()->GetActiveView();

Lines

cerb-dk9-Mar-03 9:31

cerb-dk

9-Mar-03 9:31

Hello

I would like to know who to add a line counter to the project. You know those gray bar to the left with line numbers which we can find in almost all those HTML editors.

Thanks for your help

Re: Lines

Dave Bryant9-Mar-03 15:53

Dave Bryant

9-Mar-03 15:53

Do you mean something to count the number of lines of code in your project, or a component to count the number of lines in some sort of edit control that is inside your application?

Dave

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