Re: CListCtrl - 2 - C / C++ / MFC Discussion Boards

Michael Dunn2-Sep-01 21:20

2-Sep-01 21:20

GetIconInfo() will return an HBITMAP for an icon.

--Mike--
http://home.inreach.com/mdunn/
You are the weakest link, GOODBYE!

CreateDialogIndirect ToolWindow problem ?

Christian Graus2-Sep-01 19:12

Christian Graus

2-Sep-01 19:12

I am writing a class to create our own toolbar in Win32. For Dialog boxes I create a dialog template dynamically and then call CreateDialogIndirect. I want to create a toolbar with the WS_EX_TOOLWINDOW style set, so that the caption and system menu are the smaller size. Am I right in thinking that this means I need to create a *window* with this style, draw the background grey and then add my buttons ? This is a major pain as it means I can't inherit from my dialog class....

Christian

As I learn the innermost secrets of the around me, they reward me in many ways to keep quiet.

Men with pierced ears are better prepared for marriage. They've experienced pain and bought Jewellery.

Re: CreateDialogIndirect ToolWindow problem ?

Michael Dunn2-Sep-01 19:48

Michael Dunn

2-Sep-01 19:48

Dialogs can certainly have the WS_EX_TOOLWINDOW style. Are you trying this and it's just not working?

--Mike--
http://home.inreach.com/mdunn/
You are the weakest link, GOODBYE!

Re: CreateDialogIndirect ToolWindow problem ?

Christian Graus2-Sep-01 19:53

Christian Graus

2-Sep-01 19:53

It doesn't work if I set the style to include this value, but using SetWindowLong works just dandy - I was about to post and say I'd got it working Smile | :)

I have another problem though - I am currently creating a lot of windows that all have their own 'button' on the status bar, but when I click on some of them they are not shown. I tried handling WM_SHOWWINDOW, to find it's not being called. Can you suggest what I might need to do to fix this ?

Christian

As I learn the innermost secrets of the around me, they reward me in many ways to keep quiet.

Men with pierced ears are better prepared for marriage. They've experienced pain and bought Jewellery.

Text Area In Win32

2-Sep-01 18:36

I was wondering how can I have a text area liked control in my dialog based application (win32). I try to use the resource editor but cannot find any text area liked control ?

thank you

Re: Text Area In Win32

Christian Graus2-Sep-01 18:43

Christian Graus

2-Sep-01 18:43

How is what you want different from the edit box and rich edit control provided by the resource editor ?

Christian

As I learn the innermost secrets of the around me, they reward me in many ways to keep quiet.

Men with pierced ears are better prepared for marriage. They've experienced pain and bought Jewellery.

CListCtrl - 2

Shankar Chandra Bose2-Sep-01 14:45

Shankar Chandra Bose

2-Sep-01 14:45

Hi,

Am using an owner drawn list control, and I handle the WM_MEASUREITEM message to set the item height. Problem is, this message is sent only when a window is created (or so the MSDN documentation says). I'd like to set the item height, in response to user button clicks (to provide for the effect of zooming items)-this would let the user increase or decrease item heights by clicking buttons. Problem is, as noted earlier, the message is sent only when the list control is created-how do I set the item height, without destroying and creating the control again?

Any help is much appreciated.

--Shanker.

"When it's done" - 3D Realms.

Re: CListCtrl - 2

Ben Burnett2-Sep-01 19:24

Ben Burnett

2-Sep-01 19:24

The fact that there is no way to set an item's RECT and that ListViews only supports LVS_OWNERDRAWFIXED leads me to believe that you are, unfortunately, out of luck...

Unless, you only have one column in the ListView in question, then might I recommend moving to a ListBox instead... its WM_MEASUREITEM suffers the same problem ( only ever getting called once ), but you can set an items RECT at runtime ( like when the user clicks on it ).

void CMyZoomListBox::OnSelchange() 
{	
	if ( -1 != m_nLastSelection ) {

		SetItemHeight ( m_nLastSelection, m_nNormalSize );

	}
	
	m_nLastSelection = GetCurSel ();
	SetItemHeight ( m_nLastSelection, m_nZoomSize );

	Invalidate (); // update window to reflect size changes

}

Ben Burnett

---------
On the topic of code with no error handling -- It's not poor coding, it's "optimistic" Wink | ;)

Post Message.

John Uhlenbrock2-Sep-01 14:06

John Uhlenbrock

2-Sep-01 14:06

I asked this same question for SendMessage HERE once before. However, it appears as though the solution for SendMessage does not work for PostMessage.

I want to pass a CString as one of the parameters of PostMessage. How is this done?

Re: Post Message.

Michael Dunn2-Sep-01 15:08

Michael Dunn

2-Sep-01 15:08

I want to pass a CString as one of the parameters of PostMessage. How is this done?

Well, you can pass a pointer to a CString, however this will work only if the receiver of the message to is in the same process as the sender, otherwise the pointer will be meaningless. You also have to make sure that the CString object exists long enough for the receiver to use it. Since posted messages are handled asynchronously, you'll need to arrange this part yourself.

--Mike--
http://home.inreach.com/mdunn/
You are the weakest link, GOODBYE!

Re: Post Message.

Matt Gullett2-Sep-01 16:00

Matt Gullett

2-Sep-01 16:00

Assuming the target window is in the same process, you can send a CString via PostMessage like this:

void SendTextToWindow(HWND hwndTarget, UINT uiMessage, LPCSTR lpszText);
{
     CString* pText = new CString;
     (*pText) = lpszText;

     ::PostMessage(hwndTarget, uiMessage, (WPARAM)pText, 0);
}

Then, in the message handler for uiMessage,

LRESULT OnSomeMessage(WPARAM wParam, LPARAM lParam)
{
     CString* pText = (CString*)wParam;
     ASSERT(pText);

     // do something with pText

     delete pText;

     return 0;
}

I have used this, but I do not recommend it because there is a potential that the message could not make it to the target window and thus the CString never be destroyed. Also, this only works if the target window is in the same process. Ultimately, if you really need to do this often, I would recommend creating a manager class (something line CStringMessageManager), and have it be responspilble for deleting CString objects created and passed via PostMessage.

Re: Post Message.

Matt Gullett2-Sep-01 17:58

Matt Gullett

2-Sep-01 17:58

I went ahead and posted the code I use to deal with this situation. You can find it at
http://www.codeproject.com/useritems/sendcstring.asp

Simple DLL, Simple DLL, Simple DLL , P L E A S E !!!

2-Sep-01 9:05

I wrote a program by dialog project , that works excellent. Blush | :O

Now I need to convert it to DLL. Suspicious | :suss:

---------------------------------------------------------
I opened project (MFCAppWizars(dll)).
I attached the recource dialog and all his class (CMainDlg). Cool | :cool:

I opened also exe project for test the dll and there I wrote:

HINSTANCE hInstance;
hInstance = LoadLaibrary("main.dll");
---------------------------------------------------------
Frown | :(

My questions:

1. Where have I write CMainDlg::DoModal() if I want that it wiil shown immidietly when this dll will act ? Confused | :confused:

2. How can I get and return parameters ??? Confused | :confused:

3. How can I acted this dll from the another exe program ??? Confused | :confused:

------------------------------------------------------

PLEASE !!! HELP ME !!! Cry | :((

Thanks

Re: Simple DLL, Simple DLL, Simple DLL , P L E A S E !!!

Mukkie2-Sep-01 10:44

Mukkie

2-Sep-01 10:44

Do not use LoadLibrary for this case.

In dialog class declaration (header file) put:
#ifdef DLL_BUILDING
#define DllExportImport __declspec(dllexport)
#else
#define DllExportImport __declspec(dllimport)
#endif

class DLLExportImport CMyDialog : public CDialog
...
In project settings of dll add DLL_BUILDING define

The same header, do include in exe project.
(As You can see, this time CMyDialog class will be defined as dllimport).
In link tab (project settings) of exe project, add path (relative or full) to .lib file generated during build of dll.

It will work

Thank you !

3-Sep-01 0:15

Although I dont just understood it. Confused | :confused:

Thank you!

Rose | [Rose]

Re: Thank you !

Mukkie3-Sep-01 12:35

Mukkie

3-Sep-01 12:35

Do not use LoadLibrary for this case.

Create DLL project. In this project, create header file. In this header write:

In dialog class declaration (header file) put:
#ifdef DLL_BUILDING
#define DllExportImport __declspec(dllexport)
#else
#define DllExportImport __declspec(dllimport)
#endif

class DLLExportImport CMyDialog : public CDialog
...
In project settings of dll add DLL_BUILDING define
That's all for now for dll project. Compile and forget.

Let's go back to exe project.Include the header, You have created in the dll.
The difference, is that when building dll, DLL_BUILDING macro will be defined, so DLLExplortImport will be changed by preprocessor into __declspec(dllexport). When building exe project, You won't have DLL_BUILDING defined, so __declspec(dllimport) will be used.
In link tab (project settings) of exe project, add path (relative or full) to .lib file generated during build of dll.

For more information, see msdn and search for dllexport or dllimport.

uki?

Re: Thank you !

3-Sep-01 21:52

An so what's the point about COleDropTarget?

Re: Simple DLL, Simple DLL, Simple DLL , P L E A S E !!!

Jim A. Johnson2-Sep-01 13:21

Jim A. Johnson

2-Sep-01 13:21

Why do you need to put it in a DLL?

about COleServerItem

Maer7272-Sep-01 5:31

Maer727

2-Sep-01 5:31

Does "COleServerItem" have something to do with strctured storage?

Thanks.

Maer

about COleClientItem

Maer7272-Sep-01 5:29

Maer727

2-Sep-01 5:29

Does "COleClientItem" have something to do with strctured storage?

Thanks.

Maer

Before The System

The_Server2-Sep-01 2:32

The_Server

2-Sep-01 2:32

Hi, all!!!

Does anyone know how can I catch CTRL+ALT+DEL before the system (win 2000)?

10x.

BTW: for some of you that wished for CodeProject irc server
I create a channle on DalNet called "#CodeProject"

Re: Before The System

Anders Molin2-Sep-01 2:48

Anders Molin

2-Sep-01 2:48

To be honest I don't think it's possible on Win2k...

for some of you that wished for CodeProject irc server I create a channel on DalNet called "#CodeProject"
Yea, just sad it's always empty... Cry | :((

- Anders

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

Re: Before The System

The_Server2-Sep-01 10:50

The_Server

2-Sep-01 10:50

yeah I know Cry | :((

but if people will come and stay instad of come and go.
then this place will NOT be empty. Smile | :)

BTW: for some of you that wished for CodeProject irc server
I create a channle on DalNet called "#CodeProject"

Re: Before The System

2-Sep-01 3:10

You probably have to replace som input DLL( _very_ dangerous ).
What if the user installs a servicepack?

Re: Before The System

The_Server2-Sep-01 10:52

The_Server

2-Sep-01 10:52

I have service pake 3, and I don't really know what it means ? Confused | :confused:

BTW: for some of you that wished for CodeProject irc server
I create a channle on DalNet called "#CodeProject"

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