C / C++ / MFC Discussion Boards

mebraun14-Feb-04 12:58

14-Feb-04 12:58

my program use the FindNextPrinterNotification (i don't remember it exactly) to know when the user send something to the printer.
after that i'm waiting until it stop spooling and i pause the job and then i use GetJob() to get the information about this job.

there is the problem.
i don't get the correct number of copies if the program is Word XP. with all the other it's just fine.

i tried to change some of the Word XP options but nothing...
i think it's because Word XP don't use the generic Print Dialog like all other windows programs does.

if you have any idea...
i'm totally desperate. Frown | :(

please...
please...
thanks,

HTML text from VC++ app

progman14-Feb-04 9:39

progman

14-Feb-04 9:39

How can i from VC++ application receive text under the mouse pointer in web browser window , for example.

thank you in advance !

Richedit redisplay problem

Sara Burns14-Feb-04 9:12

Sara Burns

14-Feb-04 9:12

using Visual C++ 6.0 with MFC

I am using a RichEdit control as a simple editor.
I am not using word wrap so the lines extend beyond the width of the control.

Problem:
I often find that if I replace highlighted text or even just add text to an existing line the new text is not displayed. It appears to not repaint correctly. I need to insert a space at the beginning of the line, or otherwise make it move to get it to display the change.

Also often the scroll bars do not display even though the text is wider than the control. When the redisplay is corrected the scroll bars are also displayed.

Is there a simple solution to this?

Sara

Disabling menu selection

krugger14-Feb-04 9:00

krugger

14-Feb-04 9:00

Hi all,

I am building an application which has a log-in dialog. I need the menu and toolbar selections to be diabled in the beginning and i need them to be active only when a valid user logs in.

Can you please help me in achieving this?

Regards

Krugger

Krugger

Re: Disabling menu selection

Michael P Butler15-Feb-04 1:48

Michael P Butler

15-Feb-04 1:48

Assuming you are using MFC, have a read about ON_UPDATE_COMMAND_UI.

Michael

But you know when the truth is told,
That you can get what you want or you can just get old,
Your're going to kick off before you even get halfway through.
When will you realise... Vienna waits for you? - "The Stranger," Billy Joel

Dialog closes on Escape

krugger14-Feb-04 8:58

krugger

14-Feb-04 8:58

Hi all;

I have an application which has a log-in menu. The whole stuff works fine but the only problem is that if a user hits "Escape" while my log-in menu is on, the thing just disappears leaving him/her with all the program functionality without even logging on the system!! Obviously something's going wrong! Can u please help me to stop the dialog from closing when i hit Escape.

Thank you guys;

Regards
Krugger

Re: Dialog closes on Escape

Michael Dunn14-Feb-04 9:23

Michael Dunn

14-Feb-04 9:23

See the FAQ
7.4 How do I prevent a dialog from closing when the user presses Enter or Esc?[^]

--Mike--
Personal stuff:: Ericahist | Homepage
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"That probably would've sounded more commanding if I wasn't wearing my yummy sushi pajamas."
-- Buffy

Re: Dialog closes on Escape

alex.barylski14-Feb-04 10:56

alex.barylski

14-Feb-04 10:56

I use this approach:

BOOL CDejavuDlg::PreTranslateMessage(MSG* pMsg) 
{
	// Prevent escape key from closing application window
	if(pMsg->message == WM_KEYDOWN && (pMsg->wParam  == VK_ESCAPE || pMsg->wParam == VK_RETURN))
		return FALSE;
	
	return CDialog::PreTranslateMessage(pMsg);
}

The word of the day is legs, let's go back to my house and spread the word Poke tongue | ;-P

Problem with MFC minimize box

Dev57814-Feb-04 7:07

Dev578

14-Feb-04 7:07

I am making a dialog box with MFC. I wan't to make a minimize box at design time. When I right click the dialog in the .rc and go to properties, the minimize box field is greyed out at "false". Anyone know how to make a minimize box? Any help is appreciated.

-Dev578

Re: Problem with MFC minimize box

Antti Keskinen14-Feb-04 7:49

Antti Keskinen

14-Feb-04 7:49

In order to have a minimize box option available, you must have the system menu flag set to true. This means the minimize, maximize and close buttons get drawed on the dialog caption. You can then set the minimize and maximize boxes on and off as you please, but you can't remove the close button.

If you only want the minimize button, you can draw it yourself on the dialog by overwriting the WM_NCPAINT message. To implement it, enable dialog title bar without the system menu, add a CButton for the minimize button, then override CWnd:OnNcPaint, allow the framework to execute the base class drawing first so that the standard frame is painted. Then draw/place the button.

-Antti Keskinen

----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.

opening a SDL within MFC application

Anonymous14-Feb-04 5:09

Anonymous

14-Feb-04 5:09

Hi .. if I want to open a SDL application from a MFC dialog based application what should i then do? .. rigth now i am just opening the .exe of the SDL application but then i cant share some values i need ..

Re: opening a SDL within MFC application

valikac14-Feb-04 5:28

valikac

14-Feb-04 5:28

There are several solutions. One solution is file-mapping. Another solution is via message - WM_COPYDATA.

Kuphryn

winexec window control !

Anonymous14-Feb-04 4:29

Anonymous

14-Feb-04 4:29

Hi .. if u launch a .exe file from a application it opens the .exe file over the application so its not visible .. is there a way to get the .exe file to open next to the application window so both windows are visible ?

Re: winexec window control !

valikac14-Feb-04 5:31

valikac

14-Feb-04 5:31

Definitely.

One solution is CreateProcess(). Analyze the STARTUPINFO parameter.

Kuphryn

How to find out the abandoned children?

codeant14-Feb-04 3:52

codeant

14-Feb-04 3:52

I am tried to wrote a program that listing windows created by a specified process, it base on EnumWindows And EnumChildWindows. But it does not exactly.
Spy++ show me that the top-level window of the process' "first-child" property is 0x00000000, but serveral child-window's "parent" is pointed to the top-level window.

Thanks a lot for any advices.

Re: How to find out the abandoned children?

John M. Drescher14-Feb-04 5:11

John M. Drescher

14-Feb-04 5:11

This is just a stab in the dark but did you try to get the desktop window and enumerate its children??

John

Re: How to find out the abandoned children?

codeant14-Feb-04 8:40

codeant

14-Feb-04 8:40

I had tried to GetDesktopWindow and than EnumChildWindows, But helpless.

Appreciate your help.

images(.bmp) in listbox

santosh k14-Feb-04 1:34

santosh k

14-Feb-04 1:34

hi,
Can any one tell me how can i load images(.bmp,.jpeg) in listbox,

The images are dynamically generates. So i want to list all the images in the listbox.

Regards
Santosh.K

Linking Error

merlin37114-Feb-04 1:13

merlin371

14-Feb-04 1:13

What does it mean I have no Idea what to do it doesn't even link me to a specific line
Price Calculator error LNK2001: unresolved external symbol "public: void __thiscall CPriceCalculatorDlg::OnEnChangeRetail(void)" (?OnEnChangeRetail@CPriceCalculatorDlg@@QAEXXZ)

Re: Linking Error

Antti Keskinen14-Feb-04 1:30

Antti Keskinen

14-Feb-04 1:30

This type of error is most common when you have declared a member function, but have not implemented it. Please see the CPriceCalculatorDlg class for a member function called OnEnChangeRetail.

If it exists in the header file, write an implementation code for it in the code file. If you don't need/want this member function:
1. Remove it's declaration from the header file
2. Put a '{}' after the declaration and remove the semicolon ending. This is same as writing an empty function to the implementation file
3. Declare the function as pure virtual, by adding 'virtual' keyword in front of it and an '=0' after it, before the ending semicolon.

If you have implemented this function, make sure it's name and the parameters passed to it match precisely.

-Antti Keskinen

----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.

CMenu and TrackPopupMenu

alex.barylski14-Feb-04 0:52

alex.barylski

14-Feb-04 0:52

Why do I always have problems with this...and I can never remember how I got it working the last time Smile | :)

Anyways...I have a menu in resource as a POPUP menu and I wish to load it when someone clicks a button...I understand I have to use TrackPopupMenu() and I have to Load the resource, but whenever the button is clicked...I get only a single skinny line representing the menu itself...

Can someone show me exact code required to display a context menu...when I have no menubar or any menu of any kind...just a popup menu resource which I load...

Thanks Smile | :)

The word of the day is legs, let's go back to my house and spread the word Poke tongue | ;-P

Re: CMenu and TrackPopupMenu

Antti Keskinen14-Feb-04 1:51

Antti Keskinen

14-Feb-04 1:51

Here is a complete, commented code fragment to help you out:

// Create a static CMenu object
CMenu MyMenu;<DIV>

// Create a new Windows menu object based on a resource
if ( MyMenu.LoadMenu( IDM_MENU1_RESOURCE ) )
{
    // Access the target pop-up menu
    CMenu* pTargetMenu = MyMenu.GetSubMenu( mySubMenuID );<DIV>

    // Fire the pop-up menu
    int iSelection = (int)pTargetMenu->TrackPopupMenuEx( TPM_LEFTALIGN | TPM_TOPALIGN | TPM_NONOTIFY | TPM_RETURNCMD,  
                                                                xPos, yPox, pMainWindow, NULL );<DIV>
    // Handle the selection. User's menu selection is located in iSelection now.
}<DIV>

// The menu event has ended, so clear the pointer and destroy the menu
pTargetMenu = NULL;
MyMenu.DestroyMenu();

In the above code example,
- IDR_MENU1_RESOURCE is the resource identifier
- mySubMenuID is the index of the menu you wish to launch (For example, on a default menu, the 'File' would be index number 0)
- xPos and yPos are screen coordinates where to launch the menu
- pMainWnd is a pointer to the window owning the menu. In this case, it can be any window of your application.
- iSelection is the selection made by the user, or zero if user cancelled the menu or an error occurred.

I used the approach of returning the selection value from the menu because in that way, we can make sure that the menu is properly destroyed and freed at the function end.

Alternatively, you can load the menu resource somewhere else in the program, such as the class's constructor and free it in the destructor. This way, you can handle the user's selection on a WM_COMMAND handler of your window, if needed. Also, in that case, pMainWnd must point to the window that has the handler.

Hope this will help you out. For additional info, see the CMenu class in MSDN Library.

-Antti Keskinen

----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.

Re: CMenu and TrackPopupMenu

alex.barylski14-Feb-04 10:18

alex.barylski

14-Feb-04 10:18

Very cool thank you muchly Smile | :)

The word of the day is legs, let's go back to my house and spread the word Poke tongue | ;-P

Help with Windows Hooks

Bitzer.bit13-Feb-04 23:57

Bitzer.bit

13-Feb-04 23:57

Hi! I have a great problem whit Windows Hooks. I'm writing an application similar to Spy++, but i can't manage to capture all Windows messages. I have tried to install an hook on WH_CBT, but i can capture only messages sent to my app. Can you help me!!!
Sorry for my bad english (I'm Italian)
Thanks a lot!!

(I use Windows Xp Professional)

Re: Help with Windows Hooks

Monty²14-Feb-04 0:12

Monty²

14-Feb-04 0:12

Do you have the HookProc in a DLL , it needs to be in a DLL file in order to get messages from all windows

Look at this article at cp

http://www.codeproject.com/dll/pwdspy.asp?target=hooks[^]

Hope it helps Smile | :)

C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do, it blows away your whole leg

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