C / C++ / MFC Discussion Boards

How can i use Image Magic in vc++? [modified]

$uresh $hanmugam5-Jan-07 18:43

5-Jan-07 18:43

Hi All,

As i installing the Image Magic Dynamic library of Binary release and i had create a vc++ project,which has one dialogbox with in one button like magick,when i clicked the button a below block of code will be execute...

void SampleDlg::Onmagick()
{

Image image;
try {

image.read( "c:\\girl.gif" );

image.write( "c:\\x.gif" );
}
catch( Exception &error_ )
{
MessageBox(error_.what());

}

}

I got one runtime error when the image.read() will be execute...

Unhandled exception at 0x10023955 in ImgPros.exe: 0xC0000005: Access violation writing location 0x78eed7c9.

Now i using visual studio 8.
Anyone knows the reason of this error help me..

Thankx more in advance....

-- modified at 0:48 Saturday 6th January, 2007

Re: How can i use Image Magic in vc++?

Hamid_RT5-Jan-07 19:02

Hamid_RT

5-Jan-07 19:02

Are you sure you enter correct path and if you use of other files like bmp did you get this error?

WhiteSky

Re: How can i use Image Magic in vc++?

$uresh $hanmugam7-Jan-07 20:45

$uresh $hanmugam

7-Jan-07 20:45

Hi whitesky,
yah i am sure that just i read a .jpg image. I think here is the problem that is InitializeMagic() function.

why can we call this funtion and which path is send to this function as a parameter...

But one thing i had successfully run on the console application of win32, within the same code....

So, what is the real problem...please tell me...

Re: How can i use Image Magic in vc++?

Hamid_RT7-Jan-07 21:36

Hamid_RT

7-Jan-07 21:36

I didnt use of this library but check return values of InitializeMagic

WhiteSky

Re: How can i use Image Magic in vc++?

Christian Graus5-Jan-07 21:58

Christian Graus

5-Jan-07 21:58

If you just want to read gif, jpg, etc, use GDI+, it's far less painful and far better documented.

Christian Graus - C++ MVP

'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Re: How can i use Image Magic in vc++?

$uresh $hanmugam7-Jan-07 20:50

$uresh $hanmugam

7-Jan-07 20:50

Sorry whitesky,

yah i am sure that just i read a .jpg image. I think here is the problem that is InitializeMagic() function.

why can we call this funtion and which path is send to this function as a parameter...

But one thing i had successfully run on the console application of win32, within the same code....

So, what is the real problem...please tell me...

Re: How can i use Image Magic in vc++?

Hamid_RT7-Jan-07 21:38

Hamid_RT

7-Jan-07 21:38

Hey his name is Christian Graus not whitesky Big Grin | :-D

WhiteSky

How to use CWnd function from HWND?

Max++5-Jan-07 18:07

Max++

5-Jan-07 18:07

I use SPY++ find HWND from the window that I want to control.
if I want to access that window by using CWnd function.
How I do this.

Re: How to use CWnd function from HWND?

Eytukan5-Jan-07 18:16

Eytukan

5-Jan-07 18:16

Use the member m_hwnd

<br />
	CWnd cwnd;<br />
	cwnd.m_hWnd =(HWND)0x00120112; //The HWND you got from SPY++<br />
	cwnd.ShowWindow(SW_MAXIMIZE); //test<br />

Code-Frog:So if this is Pumpkinhead. Time for him to run and hide. It's an interesting thought really.

Re: How to use CWnd function from HWND?

Hadi Dayvary5-Jan-07 18:42

Hadi Dayvary

5-Jan-07 18:42

Why you don't find it yourself without Spy++?
Do it with CWnd::FindWindow() or ::FindWindow().
Good Luck

Re: How to use CWnd function from HWND?

Hamid_RT5-Jan-07 19:05

Hamid_RT

5-Jan-07 19:05

Do you want to get hwnd of a control on other programs?

WhiteSky

Re: How to use CWnd function from HWND?

Max++5-Jan-07 19:18

Max++

5-Jan-07 19:18

ํYes,I want to inject text data to dictionary program when I copy text data to clipboard.
I use this function

::SendMessage(hwnd,WM_SETTEXT,0,(LPARAM)pchData);

Re: How to use CWnd function from HWND?

Hamid_RT5-Jan-07 20:57

Hamid_RT

5-Jan-07 20:57

A small code(I suppose you run Notepad)

char *MY="Hello"; 
HWND hWnd = ::FindWindow("Notepad", NULL);
CWnd *hWndEdit=FindWindowEx(hWnd,NULL,"Edit",NULL);
hWndEdit->SendMessage(WM_SETTEXT,0,(long)MY);

with this code you insert Hello to notepad now if you want to read this text of NotePad first you must determine length in characters of window

LRESULT l=hWndEdit->SendMessage(WM_GETTEXTLENGTH,0,0);

then you can get text of notepad

hWndEdit->SendMessage(WM_GETTEXT,l+1,(long)MY2);

Is it helpfuls? Smile | :)

WhiteSky

Re: How to use CWnd function from HWND?

Max++5-Jan-07 22:20

Max++

5-Jan-07 22:20

After I inject text to target Edit Ctrl I have to click on it and press enter key then the dictionary program will work.
So, I want to try to send the message that user press enter key after inject text to target Edit Ctrl.

What this message is?

Re: How to use CWnd function from HWND?

Hamid_RT6-Jan-07 17:30

Hamid_RT

6-Jan-07 17:30

See PreTranslateMessage

WhiteSky

HOW TO PUT THE PROGRESS BAR CONTROL IN LISTVIEW IN WIN32 API

amitmistry_petlad 5-Jan-07 17:21

amitmistry_petlad

5-Jan-07 17:21

Well , i have put the control dynamically but each time when i add new item in the list view from the fileopen dialog it's place the control(progress bar) at the same postion and when i select entire row of the listview it goes disapper and goes behind selection(might not seen).

so i need to display the progressbar in such a way that when i add an item in the list view it will show with subitem in the listview.
and when event fired it shows the progress bar in the progress mode.

i am using win32 API on .net 2005. OS SERVER 2003.
i have seen some demos but they are realted with MFC.

Thank you

AMIT

error C3867 in MFC

FredrickNorge5-Jan-07 14:40

FredrickNorge

5-Jan-07 14:40

i try to start another thread with this code

CGLMFCDlg * MyThread= new CGLMFCDlg;
_beginthread(MyThread->Thread, 0,NULL);
delete MyThread;

the new thread is a void function, i get a error message as follows:

error C3867: 'CGLMFCDlg::Thread': function call missing argument list; use '&CGLMFCDlg::Thread' to create a pointer to member

Any sugestions on how i can solve this?

thanks

Re: error C3867 in MFC

Mark Salsbery5-Jan-07 14:44

Mark Salsbery

5-Jan-07 14:44

For an address of a member function the compiler is expecting you to use the address-of
operator:

_beginthread(&MyThread::Thread, 0,NULL);

Re: error C3867 in MFC

FredrickNorge5-Jan-07 14:49

FredrickNorge

5-Jan-07 14:49

that gives me an error like this error C2664: '_beginthread' : cannot convert parameter 1 from 'void (__thiscall CGLMFCDlg::* )(void)' to 'void (__cdecl *)(void *)'
1> There is no context in which this conversion is possible

Re: error C3867 in MFC

Mark Salsbery5-Jan-07 15:32

Mark Salsbery

5-Jan-07 15:32

The thread proc needs to be defined correctly. For a member function it needs to be declared
static.

Mark

Re: error C3867 in MFC

Eytukan5-Jan-07 16:53

Eytukan

5-Jan-07 16:53

It looks like your using MFC, so why not use AfxBeginThread ? No big difference though Smile | :)

. And are you sure MyThread->Thread is static?

:Gong: 歡迎光臨吐西批 :Gong:

Re: error C3867 in MFC

FredrickNorge6-Jan-07 0:30

FredrickNorge

6-Jan-07 0:30

thanks, that solves it Wink | ;)

EnableWindow Help

celllllllll5-Jan-07 13:57

celllllllll

5-Jan-07 13:57

Hi All,

I posted my question earlier also but wasn't really satisfied. So, asking it again.
I have two comboboxes and if I select first item from first combobox then the second combobox should be disabled. And if I select any other items expect the first item from the first combobox, then the second combo box should be enabled.

I know how to disble and enable a window(using EnableWindow) but the problem I have is that I am not able to select that first item in the first combobox selecting which I disable my second combobox.

In the following code, I was trying it using GetCurSel and SetCurSel but it doesn't work. In the code, m_Au is the member of first combobox.
V is the first item in the first combobox of #define type.
m_C is the member of Second Combobox.

int nToken = m_Au.GetCurSel();<br />
   	m_Au.SetCurSel(0);<br />
  	if (nToken == V) <br />
	{<br />
		m_C.EnableWindow(FALSE);	<br />
	}<br />
	else<br />
	{<br />
	        m_C.EnableWindow(TRUE);<br />
	}

I populated my second combobox dynamically based on the first combobox. So, I mean to say that they are related to each other.

I will really appreciate the help.

C++Prog

Re: EnableWindow Help

Mark Salsbery5-Jan-07 14:10

Mark Salsbery

5-Jan-07 14:10

celllllllll wrote:
I have two comboboxes and if I select first item from first combobox then the second combobox should be disabled. And if I select any other items expect the first item from the first combobox, then the second combo box should be enabled.

if (0 == m_Au.GetCurSel()) 
{
   m_C.EnableWindow(FALSE); 
}
else
{
   m_C.EnableWindow(TRUE);
}

Re: EnableWindow Help

celllllllll5-Jan-07 14:15

celllllllll

5-Jan-07 14:15

I really appreciate the answer but it doesn't work. It is disabling the second combobox for every selection in first combobox.

So, basically we can say the "if" statement isn't working.

Thanks for the help and reading the whole problem.
Thank You

C++Prog

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