Transparent Popup Menu - C / C++ / MFC Discussion Boards

Re: Hyperlink on a dialog

Jon Sagara1-Dec-01 7:49

Jon Sagara

1-Dec-01 7:49

Hyperlink control

Jon Sagara

"Ninety percent of baseball is mental, the other half is physical." -- Yogi Bera

Re: Hyperlink on a dialog

Nish Nishant1-Dec-01 8:14

Nish Nishant

1-Dec-01 8:14

Lorenz Prem wrote:
Is there an easy way to do this

Easy way is to use ShellExecute to spawn the web site in IE

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

Using parameters in a MFC app

r2d2rigo1-Dec-01 6:28

r2d2rigo

1-Dec-01 6:28

I need an app who executes a form or another if the parameters are different. What's the code neccesary for it?

Re: Using parameters in a MFC app

Michael P Butler1-Dec-01 6:44

Michael P Butler

1-Dec-01 6:44

Look up CWinApp::ParseCommandLine on MSDN.

Michael Smile | :)

Re: Using parameters in a MFC app

Simon Walton1-Dec-01 6:52

Simon Walton

1-Dec-01 6:52

You might want to take a look at the CCommandLineInfo structure the appwizard creates for you in InitInstance(). You'll need to override ParseParam() to parse your own paremeters. Then set the necessary flag (perhaps an int) to indicate which form of the program is running. You can then set up your app to behave differently.

Simon
Hey, it looks like you're writing a letter!
Sonork ID 100.10024

Re: Using parameters in a MFC app

r2d2rigo1-Dec-01 8:09

r2d2rigo

1-Dec-01 8:09

Thanks a lot guys Smile | :)

How to set a image as CRichEditCtrl's background?

white jungle1-Dec-01 6:24

white jungle

1-Dec-01 6:24

I use a image as CRichEditCtrl's background.
but when I input some words,the background was break by the character.
how to deal wiht it?

Transparent Popup Menu

User 66581-Dec-01 5:06

User 6658

1-Dec-01 5:06

Hi
what's the easiest way to make my popup-menu transparent?

I would like to use SetLayeredWindowAttributes, and I know how to use it...but where and when do I need to use it? and how can I get the HWND of my popup-menu?

thanks in advance

modified 12-Sep-18 21:01pm.

Dialog Title text

Ashman1-Dec-01 0:47

Ashman

1-Dec-01 0:47

How do I set the title bar text on a dialog application...I used to know, and now I have forgotten something as simple as that.

SetTitle doesnt seem to work. I want it so if I click on a button it will set the window text to what I specify!

Thanks
Ashman

Re: Dialog Title text

User 66581-Dec-01 1:45

User 6658

1-Dec-01 1:45

What about SetWindowText? Big Grin | :-D

regards

modified 12-Sep-18 21:01pm.

Re: Dialog Title text

Tim Smith1-Dec-01 4:31

Tim Smith

1-Dec-01 4:31

Or to be more specific.

SetWindowText (hDlg, _T ("Test me now baby"));

Or if you are using MFC:

dlg .SetWindowText (_T ("X"));

or

SetWindowText (_T ("X")); if you are invoking SWT from an instance of the class.

Tim Smith
Descartes Systems Sciences, Inc.

UNKNOWN value !

Hadi Rezaee30-Nov-01 22:46

Hadi Rezaee

30-Nov-01 22:46

Hi all,
Can CDaoDatabase object return LPUNKNOWN value ?

Confused | :confused:

My month article: Game programming by DirectX by Lan Mader.
Please visit in: www.geocities.com/hadi_rezaie/index.html

Hadi Rezaie

installshield

Mazdak30-Nov-01 20:47

Mazdak

30-Nov-01 20:47

Which files should I add to my installshield
when I write database program?Should I install
SQL Server (or MS Access)on the computer I want to use my application?

Re: installshield

Nish Nishant30-Nov-01 22:07

Nish Nishant

30-Nov-01 22:07

Install MDAC 2.7
That'll install all the required ADO DLLs and ODBC stuff and DAO and whatever

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

Re: installshield

Kannan Kalyanaraman1-Dec-01 16:56

Kannan Kalyanaraman

1-Dec-01 16:56

If you are using the developer edition of InstallShield, It includes support for the merge modules. You can just select the MDAC merge module in the corresponding option, and install shield takes care of the rest. The downside is your installation increases in size.

Cheers
Kannan

Trying to capture and print the screen.

GD30-Nov-01 14:50

30-Nov-01 14:50

Hi Folks,

I am trying to print a captured screen. In one of the previous posts, it was suggested that a screen can be captured very easily using the code attached below.

The code returns a handle to the screen. Does anyone know if and how we can use this handle to print the screen to the printer.

Any help is greatly appreciated.

Thanks.
Gautam

code for capturing screen: -

HDC hdcSrc,hdcMem;
int cx,cy;
HBITMAP hBitMap;
HWND hwnd;

//Get Desktop Handler
hwnd = ::GetDesktopWindow();
hdcSrc = ::GetDCEx(hwnd,NULL,NULL);
hdcMem = CreateCompatibleDC(hdcSrc);
cx = GetSystemMetrics(SM_CXSCREEN);
cy = GetSystemMetrics(SM_CYSCREEN);
hBitMap = CreateCompatibleBitmap(hdcSrc,cx,cy);
SelectObject(hdcMem,hBitMap);
BitBlt(hdcMem,0,0,bitmap->bmWidth,bitmap->bmHeight,hdcSrc,0,0,SRCCOPY);
DeleteDC(hdcMem);
::ReleaseDC(hwnd,hdcSrc);

Re: Trying to capture and print the screen.

Nish Nishant30-Nov-01 15:00

Nish Nishant

30-Nov-01 15:00

This might be an easier method

use keybd_event with VK_PRINTSCREEN

that'll copy it into the clipboard

now all you need to do is figure out a way to send the clipboard to the printer

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

Re: Trying to capture and print the screen.

Rick York30-Nov-01 17:56

Rick York

30-Nov-01 17:56

Try to get an HDC to the printer and call StretchBlt passing it the HDC and the handle to the bitmap. The other args will define the size you want to display the image.

Richedit2.dll / Richedit32.dll

Nnamdi Onyeyiri30-Nov-01 12:42

Nnamdi Onyeyiri

30-Nov-01 12:42

Ive seen some pretty good things, like web addresses automaticall turning into hyperlinks using these classes, but i dont have the slitest idea how to use them, all i know is that i need to derive from CRicheditView.

PLEASE PLEASE PLEASE htlp me if you can.

Thanks.

==================================================
The Eclypse

Re: Richedit2.dll / Richedit32.dll

Henry Jacobs1-Dec-01 4:54

Henry Jacobs

1-Dec-01 4:54

Use riched20.dll. Send the rich edit control the message EM_AUTOURLDETECT. Whenever the user clicks on a link a WM_NOTIFY message will be sent. The notification is EN_LINK. lParam is a pointer to a ENLINK structure containing information about the link.

I'm not familiar with MFC's implimentation (ON_NOTIFY(EN_LINK, OnLinkNotification) or something). I hope that helps though.

File Encryption & Read/Write in Binary Mode

valikac30-Nov-01 12:28

valikac

30-Nov-01 12:28

Hi,
I am working on an encryption program. There are two versions. One is text encryption and the second is binary encrytion. The text encryption is fairly simply. The downside to the text version is that is only works on text files. One the other hand, I cannot get the binary encryption program to work.

There are two problems. First, I cannot copy complete raw data from any file and save it into a character array. I have tried giving the array a specific size and I have tried dynamically allocating the size of the array based on the size of the ifstream.

ifstream openFile;
openFile.open(x, ios::in | ios::binary);
openFile.seekg(0, ios::end);
size = openFile.tellg();

char *temp;
temp = new char(size);

openFile.read((char *) temp, sizeof(temp));

The code above does work, however, "sizeof(temp)" always output a 4 even if its subscript is 1000. the char * does not affect it because I saw the same number even if I use:

char temp[100];

How do you read raw data (binary) from any file and save it in memory so you can make specific encryption and then write it back in binary mode?

Thanks,
Kuphryn

Re: File Encryption & Read/Write in Binary Mode

Nnamdi Onyeyiri30-Nov-01 12:35

Nnamdi Onyeyiri

30-Nov-01 12:35

If it is not tooooo much trouble, I would like to know how to do text encrypting.

==================================================
The Eclypse

Re: File Encryption & Read/Write in Binary Mode

Anders Molin30-Nov-01 12:43

Anders Molin

30-Nov-01 12:43

Instead of

char *temp; 
temp = new char(size); 

openFile.read((char *) temp, sizeof(temp));

use

char *temp; 
temp = new char(size); 

openFile.read(temp, size);

sizeof(temp) is always going to return 4 because it's a pointer. There's actually no way to say "how many bytes is there allocated for this pointer", so you just have to remember it for yourself...

kuphryn wrote:
How do you read raw data (binary) from any file and save it in memory so you can make specific encryption and then write it back in binary mode?

I always use fread() and fwrite() for that Smile | :)

Just open the file as binary, and put it in a buffer with fread()

Here is a simple function that writes a binary file...

bool SaveBinaryFile(const char *filename, const char *buffer, const int buflen)
{
  FILE *f = fopen(filename, "wb");
  if (f == NULL) return false;
  unsigned int i = fwrite(buffer, sizeof(char), buflen, f);
  fclose(f);
  if ((signed)i != buflen) return false;
  return true;
}

- Anders

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

Re: File Encryption & Read/Write in Binary Mode

valikac1-Dec-01 12:37

valikac

1-Dec-01 12:37

Thanks everyone.

Hey Anders,

fread() and fwrite() functions new to me. Are those functions C++ or C?

Kuphryn

Re: File Encryption & Read/Write in Binary Mode

Anders Molin1-Dec-01 12:42

Anders Molin

1-Dec-01 12:42

kuphryn wrote:
fread() and fwrite() functions new to me. Are those functions C++ or C?

C, not C++

- Anders

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

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