Re: Transparent icons on a toolbar buttons - C / C++ / MFC Discussion Boards

Re: Open default application for associated file

ness41630-Jun-04 7:11

30-Jun-04 7:11

First of all, thank you very much! ShellExecute() did exactly what I needed.

Secondly, I assume the snoring smiley was used to indicate that this was a stupid question and I don't feel that was needed. If my assumption is incorrect, I apologize.

Re: Open default application for associated file

palbano30-Jun-04 7:14

palbano

30-Jun-04 7:14

>> indicate that this was a stupid question
Not at all! It gets asked here 2 to 3 times a week so it's boring is all. Actually this was much more intersting Big Grin | :-D

"No matter where you go, there your are." - Buckaroo Banzai

-pete

Re: Open default application for associated file

Blake Miller30-Jun-04 7:34

Blake Miller

30-Jun-04 7:34

I agree.
They deserve extra credit for trying to do the right thing Big Grin | :-D

Transparent icons on a toolbar buttons

Daredevil30-Jun-04 6:08

Daredevil

30-Jun-04 6:08

Hello
I am using 256 color icons for my toolbar, however each of the icons has a white (or light grey) background which is ugly. How is it possible to make the icons transparent on any windows theme?
Thanks in advance.

Re: Transparent icons on a toolbar buttons

GermanGeorge1-Jul-04 2:00

GermanGeorge

1-Jul-04 2:00

i did not try this out, but I would start this way:

subclass the bar
overwrite the WM_CTLCOLOR of the bar
and set in the method
{
pDC->SetBkMode( TRANSPARENT );
return m_LeerBrush;
}

where m_LeerBrush=GetStockObject(HOLLOW_BRUSH)

Then use a transparent color for the icon

hope this helps

Re: Transparent icons on a toolbar buttons

Elmue16-Oct-09 9:22

Elmue

16-Oct-09 9:22

Hello

This will not work.
The toolbar internally works with old primitive bitmaps. (it comes from the Windows 3.1 times)
SetBkMode(TRANSPARENT) is useless for painting bitmaps. It is mainly for printing text.

What you have to do is assign an Imagelist to the toolbar.
The imagelist can maintain a primitive transparency using a mask.

With i_ImageList.SetBkColor(..) you can define with which color the "transparent" pixels are filled.
With i_ImageList.Add(AfxGetApp()->LoadIcon(IDI_ICON1) you can load transparent icons.
With i_Toolbar->GetToolBarCtrl().SetImageList(&i_ImageList) you assign the image list
And as LAST you can load the toolbar tooltips and Command IDs trom the resources
i_Toolbar.LoadToolBar(IDR_TOOLBAR1);
The images stored in the resources will be overridden with your imagelist.

Please note:
This is NOT real transparency with an Alpha channel!
You can NOT draw XP icons or alpha channel bitmaps with various levels of transparency!
And you can NOT draw on a multicolored backgound.

Elmü

Re: Transparent icons on a toolbar buttons

lakshmanguru23-Feb-10 11:40

lakshmanguru

23-Feb-10 11:40

Any suggestions? Still no luck.

if (!myBar.CreateEx(this, TBSTYLE_FLAT | TBSTYLE_TRANSPARENT, WS_CHILD | WS_VISIBLE | CBRS_TOP
		| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC))
	{
		TRACE0("Failed to create toolbar\n");
		return -1;      // fail to create
	}

	myBar.LoadToolBar(IDR_TOOLBAR1);

	list1.Create(16, 16, ILC_COLOR32 | ILC_MASK, 2, 2);
        list1.SetBkColor(RGB(255,0,0));

	list1.Add(AfxGetApp()->LoadIcon(IDI_ICON1));
	list1.Add(AfxGetApp()->LoadIcon(IDI_ICON2));

        myBar.SendMessage(TB_SETIMAGELIST, 0 , LPARAM (list1.m_hImageList));

	myBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&myBar);

Re: Transparent icons on a toolbar buttons

Mahadev HK5-Aug-11 2:33

Mahadev HK

5-Aug-11 2:33

Hi, Try the below code. It will work for sure.

    if (!m_wndToolBarMaha.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
        | CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC ) )
    {
        TRACE0("Failed to create toolbar\n");
        return -1;      // fail to create
    }

    CWinApp* pApp= AfxGetApp();
    m_TBarImages.Create(32, 32, ILC_COLOR, 4, 4);
    m_TBarImages.SetBkColor( RGB( 192, 192, 192 ) );
    m_TBarImages.Add(pApp->LoadIcon(IDI_ICON1));
    m_TBarImages.Add(pApp->LoadIcon(IDI_ICON2));
    m_TBarImages.Add(pApp->LoadIcon(IDI_ICON3));
    m_wndToolBarMaha.GetToolBarCtrl().SetImageList(&m_TBarImages);

    m_wndToolBarMaha.LoadToolBar(IDR_MAINFRAME);

    // TODO: Delete these three lines if you don't want the toolbar to be dockable
    m_wndToolBarMaha.EnableDocking(CBRS_ALIGN_ANY);
    EnableDocking(CBRS_ALIGN_ANY);
    DockControlBar(&m_wndToolBarMaha);

Mahadev

How to refresh the ActiveX Property Browser?

Daed30-Jun-04 6:01

Daed

30-Jun-04 6:01

At design time, I need to refresh the Property Browser when giving a property a specific value. Does anyone know how I can do this?

Thank you

ActiveX ListBox

Roger Art30-Jun-04 5:55

Roger Art

30-Jun-04 5:55

Hi.

I want to write a customized ListBox control, (with UNICODE support and other stuff) for use in a Visual Basic 6.0 application.
I start App.Wizard and I select "MFC ActiveXControl Wizard" project.
Then I select 'ListBox' in step 2 where say "Which window class, if any, should this control subclass"?
But when all is finish and I am with the project created I find that I do not get any ListBox function like AddString(),
GetString(), SetItemData(), etc, etc.
I must write all those functions?

Where could I find some information about creating a new Activex Control based on Listbox.
Thank you.

Re: ActiveX ListBox

Jaime Stuardo30-Jun-04 7:04

Jaime Stuardo

30-Jun-04 7:04

The class generated by the wizard is derived from COleControl and by subclassing the window to LISTBOX, it is only subclassing the default LISTBOX. That way, I think you can use normal LB_XXXX messages to addstring, getstring, etc. For example, to add a string, the message to send is LB_ADDSTRING.

Jaime

Re: ActiveX ListBox

rogerart30-Jun-04 7:46

rogerart

30-Jun-04 7:46

Ok.

But the handle from what window should I use as first parameter?

I.E:

in a method inside the activex:

<br />
<br />
...<br />
<br />
::SendMessage(???, LB_ADDSTRING, 0, 0);<br />
<br />
...<br />

??? ->handle to the window will receive the message.

Thank you for your support.

Roger

Re: ActiveX ListBox

Jaime Stuardo30-Jun-04 9:17

Jaime Stuardo

30-Jun-04 9:17

The handle is the handle of the COleControl derived class, but, since you are in "this" control, take the :: off.... so the call would be:

SendMessage(LB_ADDSTRING, 0, (LPARAM) _T("Testing"));

Note that call has to be made after the control has been created... for example, after the call to COleControl::OnCreate call and on..

Jaime

Re: ActiveX ListBox

Roger Art30-Jun-04 10:56

Roger Art

30-Jun-04 10:56

Yes that works!.

But now I have a little problem and I dont know why. I want to handle the message OnDrawItem() and OnMeasureItem() and the program flow never pass through these functions. Do you know what is the problem?.

Thank you very much.

Roger.

PS: Sorry about my english.

Demian.

Re: ActiveX ListBox

Roger Art30-Jun-04 10:56

Roger Art

30-Jun-04 10:56

Re: ActiveX ListBox

Jaime Stuardo1-Jul-04 4:21

Jaime Stuardo

1-Jul-04 4:21

Have you modified the style to LBS_OWNERDRAWFIXED or LBS_OWNERDRAWVARIABLE before control creation?

You may also think about painting the control in WM_PAINT message.

Jaime

Looking for C++ Programmers in India

Arun Gandhi30-Jun-04 5:38

Arun Gandhi

30-Jun-04 5:38

Hi Everybody,

We are looking for C++ Programmers in India. Its a contract work for one year. Programmers can work from home.

Please contact Sandeep Gandhi @ Sandeep@landmark4u.com

Thanks

Dependency Detection

Joseph Dempsey30-Jun-04 4:58

Joseph Dempsey

30-Jun-04 4:58

Does anyone here know how I would go about detecting dependencies for an application and/or DLL. I need to be able to do this in my own source code because I am writing an application that requires this information. Since I can not redistribute dependcy walker or dumpbin ( as far as I know ) i need to do this on my own. If any knows a) how to do this or b) where a good resource about this is I would greatly appreciate it.

Joseph Dempsey
joseph_r_dempsey@yahoo.com

Re: Dependency Detection

David Crow30-Jun-04 5:58

David Crow

30-Jun-04 5:58

For implicitly loaded DLLs, check out the .idata section of the file. For explicitly loaded DLLs (i.e., LoadLibrary()), I do not know of a way.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Dependency Detection

palbano30-Jun-04 6:18

palbano

30-Jun-04 6:18

EnumProcessModuiles Argicle

"No matter where you go, there your are." - Buckaroo Banzai

-pete

How to prevent setting focus to modeless dialog ?

rrrado30-Jun-04 4:02

rrrado

30-Jun-04 4:02

I have some modeless dialog, where WebBrowser is downloading
some pages.
I need to do this in background, it means, this window won't be
activated unless user click into the dialog, or will select it in task manager.
How to do this ? Sometimes IE after downloading web page will set this dialog as active Frown | :(

Thank you !

rrrado

Re: How to prevent setting focus to modeless dialog ?

GermanGeorge1-Jul-04 2:03

GermanGeorge

1-Jul-04 2:03

i did not test it, but i would start this way.

after
m_Modelessdialog->ShowWindow(SW_SHOW);

i would use
this->SetActiveWindow();
or
this->SetFocus();
or
this->BringWindowToTop();
etc.
to get the focus pack to the parent.

just try

hope it helps
George

global connection to db

JabraJabra30-Jun-04 2:18

JabraJabra

30-Jun-04 2:18

hi,
i want to create only one connection to my db in my app.
im trying to do myConn.Open() in the InitInstance() function in my App but it throws me an exception. what should i do?!

Re: global connection to db

David Crow30-Jun-04 2:55

David Crow

30-Jun-04 2:55

Avi Laviad wrote:
...but it throws me an exception. what should i do?!

How about telling us what the exception is, or maybe what the code looks like? It's hard to provide anything useful with the little bit of information you've provided.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Sorry...

JabraJabra30-Jun-04 3:00

JabraJabra

30-Jun-04 3:00

well, here is full detail of my code: (i hope)
in my CXXXApp::InitInstance() i did:

<br />
m_pConnection.CreateInstance(__uuidof(Connection)); //Create connection<br />
	try<br />
	{<br />
		m_pConnection->Open<br />
		("Provider=Microsoft.Jet.OLEDB.4.0;"<br />
		"Data Source=D:\\DATA\\Nwind.mdb", "", "", -1);<br />
<br />
	}<br />
	catch(_com_error *e)<br />
	{<br />
		CString Error = e->ErrorMessage();<br />
		AfxMessageBox(e->ErrorMessage());<br />
	}<br />
	catch(...)<br />
	{<br />
<br />
	}<br />

when i do this code in my View (it's MDI app) everything works fine.
when i do this - im getting into the catch(...).

is it making any sense to ya? Unsure | :~

Avi.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.