Initializing the image list


The list view control should be initialized in the OnInitDialog() function of the CDialog or in the OnInitialUpdate() function of the CFormView. A list view control can have up to three image lists associated with it: two of them for icons and the third for state images.

Here are the steps involved

  1. Declare variables of the type CImageList in your CDialog or CFormView sub class.
  2. In the OnInitDialog() or OnInitialUpdate() function call the Create() function for the CImageList member variables.
  3. Call the SetImageList() member function of the list view control.
Here is a sample code.
m_imgIcon.Create( IDB_LARGEICONS, 32, 1, (COLORREF)-1 ); //Create from bitmap resource 
m_listctrl.SetImageList( &m_imgIcon, LVSIL_NORMAL );  //Set the image list 
m_imgIconSmall.Create( IDB_SMALLICONS, 16, 1, (COLORREF)-1 ); 
m_listctrl.SetImageList( &m_imgIconSmall, LVSIL_SMALL );
The image list set using LVSIL_NORMAL is used only for the LVS_ICON mode. For this mode a 32x32 icon is usually used. For all other view modes the image list set with LVSIL_SMALL is used. The standard icon size for this is 16x16 pixels. You do not have to use the standard sizes though. For that matter, you do not have to use square images either, the images can have any aspect you want.
 



Comments

  • Overlay and State Images!!!

    Posted by Legacy on 12/04/1999 12:00am

    Originally posted by: Mustafa Zein

    I found all the examples here deals with the Images/ Icons appears at the Items itself, but none for choosing, setting, displaying, changening the Overlay and State Images at reuntime!!!

    Hope you can cover this soon, thank you

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • CRM has long been seen as a must-have sales tool. However, much of the value of traditional CRM accrues to managers, not the reps that use them daily. Learn how CRM designed for the individual benefits the entire sales organization from increased data quality to more predictable revenue pipelines.

  • Temporary network outages -- even those lasting just a few minutes -- can cripple organizations that rely on local Internet access at remote locations. Failover systems that automatically switch to 4G LTE cellular when landlines go down let organizations maximize uptime, even when the unexpected happens. Read this white paper to learn how 4G failover systems that use standalone gateways supported by a cloud-based management tool are proving to be a solid choice for improved business continuity and productivity …

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date