C / C++ / MFC

17-Apr-04 6:27

If I wanted to find all the child windows on a dialog that were edit controls should I be able to use the following code

FindWindow ("EDIT", NULL);

If so should this code work in the first WM_PAINT message that a dialog receives? I ask because I try it and when it executes it returns NULL. I do have edit controls on my dialog. Any help is appreciated. Thanks.

- Aaron

Neville Franks17-Apr-04 12:33

Neville Franks

17-Apr-04 12:33

FindWindow() won't work. Use EnumChildWindows() and in the callback proc inspect the window class and see if it is an edit style. See: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/Windowing/Windows/WindowReference/WindowFunctions/EnumChildWindows.asp[^]

Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.com

monrobot1317-Apr-04 16:51

17-Apr-04 16:51

Thanks for the information. One question...how do I inspect the window class to see if it's an edit control? How do I get the window class information from the hwnd value? Thanks again.

- Aaron

Neville Franks17-Apr-04 22:23

Neville Franks

17-Apr-04 22:23

Try:

TCHAR buff[ 32 ];
        GetClassName( hWnd, buff, sizeof( buff )-1 );
        if ( stricmp( buff, "edit" ) == 0 )
              ;  // we have an edit control

Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.com

monrobot1318-Apr-04 11:52

18-Apr-04 11:52

Works beautifully. Thanks Neville.

- Aaron

Custom Control & Dll Hell

Ravi Bhavnani17-Apr-04 17:50

Ravi Bhavnani

17-Apr-04 17:50

Neville Franks wrote:
www.surfulater.com

Looks nicer by the day, Neville! Cool | :cool:

/ravi

My new year's resolution: 2048 x 1536
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ronhash17-Apr-04 6:09

ronhash

17-Apr-04 6:09

Hi,
I have the followings:
1. A Dll with a custom control (ControlDll.dll)
2. A dll with a dialog using the custom control (DialogDll.dll)
3. An exe that uses the dialog from DialogDll.dll

The control is register nicely like all custom controls using AfxRegisterClass...

When i run the exe, it failed (the dialog was not displayed), what i did is the following:
Checked teh 'no fail create' to see where it failed, and found out it could not find the control from the ID while in 'PrepareCtrl' of the DDX_Control of my custom control.

I then created another dialog, this time in the exe, which uses the same custom control from the ControlDll.dll, and it worked!

It seems that the nesting of dll within dll, and the custom control registration some how got lost Frown | :(

Any help will be wolcomed Rose | [Rose]

10x

ronhash

compile problem

tank102517-Apr-04 5:46

tank1025

17-Apr-04 5:46

I use Timer in my service prog like that:
timer2ID=SetTimer(NULL, 0, INTERVAl,Timer2);
when compile Debug ,it is perfect.but when complie Release,show the error :

D:\Microsoft Visual Studio\VC98\MFC\INCLUDE\afxwin2.inl(469) : error C2039: 'OnTimer' : is not a member of 'CWnd'
D:\Microsoft Visual Studio\VC98\MFC\INCLUDE\afxwin2.inl(470) : error C2065: 'Default' : undeclared identifier

I don't use CWnd class in my prog.what is the problem?

appreciate any help!!!

Re: compile problem

Branislav17-Apr-04 22:59

Branislav

17-Apr-04 22:59

timer2ID=::SetTimer(NULL, 0, INTERVAl,Timer2);
if you use windows api functions but i am not shure what classes and functions you have because you include mfc library.

File Association

Dennis L17-Apr-04 5:36

Dennis L

17-Apr-04 5:36

Hi All!

Can Any one tell me how to luanch an application by double clicking a file which is associated with the application's icon

Thank Y'All !

Re: File Association

valikac17-Apr-04 7:05

valikac

17-Apr-04 7:05

One possible solution is RegisterShellFileTypes().

Kuphryn

Re: File Association

BlackDice17-Apr-04 11:23

BlackDice

17-Apr-04 11:23

I can't get to my Visual Studio right now, but i had the same problem. there's a function of CWinApp called enableShellOpen or something like that. put that function in your app's initinstance function and it should work.

If it's broken, I probably did it

bdiamond

capture mouse event in splitter window

lvidot17-Apr-04 3:00

lvidot

17-Apr-04 3:00

Hi,

I have a 3 way split window, horizontal and vertical.

1st on the left is a FormView, containing a lot of edit and radio buttons, suppose to display the different cordinates.

2nd, first row on the right, which is the main view class has a ScrollView.

3rd, second row on the right, has a FormView.

I need to capture the mouse click and movement on the 2nd window and display the coordinates in the edit boxes in 1st window.

Can anyone help

lvidot

Re: capture mouse event in splitter window

valikac17-Apr-04 7:06

valikac

17-Apr-04 7:06

One solution is to add a message handler for the mouse move message in the view class.

Kuphryn

Re: capture mouse event in splitter window

Anonymous19-Apr-04 2:13

Anonymous

19-Apr-04 2:13

Thanks,

I'm new to this environment....

So how do I go about that?....
Any help will be most appreciated...

What are the steps to save the content of the CDC to the Bitmap file?

JHAKAS17-Apr-04 2:44

JHAKAS

17-Apr-04 2:44

What are the steps to save the content of the CDC to the Bitmap file?

Well going through the MSDn and web articles i found some of the handy tools that are used for saving the content of Memory device context to bitmap file are:

1.0 Fill the BITMAPHEADERINFO structure
2.0 uSE THE GetDIBits() function
3.0 Use of CreateDIBSection to write

Problem Statement: I am having a global Memory device context. In a function i am initialising it as Mem. DC by calling API -> CreateCompatibleDC().
All the drawing stuff is drawn to it.

Now on Save i have to save the content of the MemoryDevice Context ( MemDC) to a Bitmap file.

Any solution,idea and guidelines to do this.

Leave your mark wherever you go

Re: What are the steps to save the content of the CDC to the Bitmap file?

John R. Shaw17-Apr-04 8:43

John R. Shaw

17-Apr-04 8:43

codeproject
MFC / C++ >> Bitmaps & Palettes
CxImage
CDibData
A DIBSection wrapper for Win32 and WinCE
etc...

INTP

Intellisense not working

uus9917-Apr-04 1:13

uus99

17-Apr-04 1:13

Why sometimes when i press . or -> the intellisense will pop-up a menu, but other times it does not. Is there a problem with vc++6? I'm definitely sure that particular object has that member function, but intellisense fails to bring the pop-up menu, all options are enabled btw.

Anyone experienceing same prob like me?

_moved17-Apr-04 3:10

_moved

17-Apr-04 3:10

deleting intellisense database .ncb file helps sometimes VS will built an new and then it should work

uus9919-Apr-04 4:38

uus99

19-Apr-04 4:38

THanks! It works! I deleted .ncb file, and the next thing i know, the intellisense is back!!! Thanks a lot man!

BlackDice17-Apr-04 11:25

BlackDice

17-Apr-04 11:25

also, I find that sometimes it doesn't work in a new class or if you're on a line after you've made a syntax error. In new classes, go the .h file and click anywhere within the class definition and hit <enter>. that works for me when intellisense isnt' working or the class isn't showing up in the ClassView window

If it's broken, I probably did it

bdiamond

Doubt in CPropertySheet/CTabCtrl

uus9918-Apr-04 22:28

uus99

18-Apr-04 22:28

It really pisses me off when intellisense occasionally does not work. I'll try deleting .ncb and see if it works then. Smile | :)

Thx for the tip

P. Gnana Prakash17-Apr-04 0:25

P. Gnana Prakash

17-Apr-04 0:25

Hi all,

In my application, i created the property sheet with six property pages.. The property pages are appeared as 2 rows in tab control of the property sheet. I want to display the dialog property pages in a single row. Any one please give me the suggestion to achive this.

Regards,
Prakash

A Journey of thousand miles must begin with a single step.

Re: Doubt in CPropertySheet/CTabCtrl

monrobot1317-Apr-04 6:36