Solved

transparent icons have black background

Posted on 2004-10-14
1
924 Views
Last Modified: 2013-11-20
Hi Experts,

I'm creating a toolbar control with custom icons.  The problem I have is that the icons have a black background when I want transparency instead.  

The icon I'm using:
The icon was created using adobe illustrator plus axialis icon workshop.  The icon is available in many different sizes/color depths, and the colors look ok except for the black-instead-of-transparent background.  When I use the icon on my WinXP desktop, it looks fine with proper transparency.  You can see my icon file at http://amis.sf.net/temp/arrow.ico.

Dev environment:
MSVC 6 running on WinXP
Project is an MFC exe, SDI, with CFrameWnd derived main window.  The code below is executed in the window's OnCreate function.

Here are the steps I've taken:


///////////////begin code///////////////////////////////////////////////
//the path to the icon file
CString szIconFile("c:\\docs\\arrow.ico");

//the image list (i've also tried the ILC_COLOR8 flag instead)
m_tb1_images.Create(24,24,ILC_COLOR24,4,4);

//create an icon resource
HINSTANCE hInst = AfxFindResourceHandle(MAKEINTRESOURCE(IDR_ICON),RT_GROUP_ICON);

//load the icon from file
HICON hIcon = (HICON)LoadImage(hInst,szIconFile,IMAGE_ICON,24,24,
            LR_LOADFROMFILE);

//add the icon to the image list
m_tb1_images.Add(hIcon);

//create the toolbar (it's a CToolBarCtrl object)
m_tb1.Create(WS_CHILD | WS_VISIBLE | TBSTYLE_FLAT | TBSTYLE_TRANSPARENT, rect, this, ID_TOOLBAR);

//set the image list
m_tb1.SetImageList(&m_tb1_images);

//add a string to the toolbar
m_tb1.AddString(IDS_OPEN);


//button structure(s)
TBBUTTON buttons[1];

buttons[0].iBitmap = 0;
buttons[0].idCommand = ID_CMD_OPEN;
buttons[0].fsState = TBSTATE_ENABLED;
buttons[0].fsStyle =  TBSTYLE_BUTTON;
buttons[0].iString = 0;

//add a button to the toolbar
m_tb1.AddButtons(1, &buttons[0]);

//auto size the toolbar
m_tb1.AutoSize();

///////////////end code///////////////////////////////////////////////

Thanks
Marisa
0
Comment
Question by:marisademeglio
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 3

Accepted Solution

by:
_mb_ earned 125 total points
ID: 12316408
It should work with the ILC_MASK Flag for the image list:
m_tb1_images.Create(24, 24, ILC_COLOR24 | ILC_MASK, 4, 4);
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Expand LInux Boot partition remotly 3 102
Complete beginner needs help making a cron job 9 129
haveThree challenge 22 123
Detect file exist or not 3 201
Introduction: Displaying information on the statusbar.   Continuing from the third article about sudoku.   Open the project in visual studio. Status bar – let’s display the timestamp there.  We need to get the timestamp from the document s…
In this post we will learn different types of Android Layout and some basics of an Android App.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question