MFC Transparent CDialog Demo

Environment: Visual C++ V6.0

This dialog is derived from CDialog. A bitmap is loaded from a file and a region created based on a transparent colour. The bitmap is then used to paint the dialog. This demo also demonstrates dragging the dialog by clicking anywhere on a visible portion of the dialog, timer events, and a button on the transparent dialog.

It is perfect to be used as a splash screen or similar application or as a skeleton application for non-rectangular windows that are shaped by a supplied bitmap.

Downloads

Download demo project - 87KB


Comments

  • Thanks!

    Posted by stahl on 08/04/2008 04:00pm

    Works great, exactly what i was looking for!

    Reply
  • Do add the important code in the page rather than ziping .

    Posted by jayender.vs on 11/24/2005 01:36am

    Please add the important codes in the displayed page rather than putting it into zip file. Many have the restriction in downloading the zip file.

    Reply
  • Extra code.

    Posted by Legacy on 12/17/2002 12:00am

    Originally posted by: John Wellbelove

    I was playing around with the code and background bitmaps and came up with this small addition. It adds the region of the 'close' button to the window region, making it always visible regardless of the bitmap transparency. You can make some wild dialogs with this, such as a group of controls that float on the desktop without any apparent (connected) dialog background.

    Add this after the bitmap region is created.

    CWnd *pWnd = GetDlgItem(IDC_CLOSE);
    CRect rect;
    pWnd->GetWindowRect(&rect);
    ScreenToClient(&rect);
    crRgnTmp.CreateRectRgn(rect.left, rect.top, rect.right, rect.bottom);
    crRgn.CombineRgn(&crRgn, &crRgnTmp, RGN_OR);
    crRgnTmp.DeleteObject();

    Reply
  • Not working with Windows 98

    Posted by Legacy on 12/11/2002 12:00am

    Originally posted by: Richard Adams

    For some reason the dialog controls are all offset on Windows 98? Ideas?

    Reply
  • Disappearing dialog

    Posted by Legacy on 12/10/2002 12:00am

    Originally posted by: John Wellbelove

    I found that sometimes, if you drag and drop the dialog lots of times, it may suddenly close for no apparent reason!

    System
    XP SP1
    VC++ 6.0 Standard.

    Reply
  • Not working

    Posted by Legacy on 12/09/2002 12:00am

    Originally posted by: gerlinden

    Your demo is not working. Where is the bitmap?
    .DoModal returns "Error Loading bitmap"

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

Top White Papers and Webcasts

  • On-demand Event Event Date: August 27, 2015 With the cloud enabling companies to spin up servers and stand up data stores more quickly, mobile apps can be created faster, reducing the time-to-value. But three major obstacles stand in the way for many organizations: The backlog of app project requests confronting every enterprise regardless of their internal app development capabilities Finding and employing better, faster tools to speed and simplify the process of developing those apps. The emergence of …

  • When individual departments procure cloud service for their own use, they usually don't consider the hazardous organization-wide implications. Read this paper to learn best practices for setting up an internal, IT-based cloud brokerage function that service the entire organization. Find out how this approach enables you to retain top-down visibility and control of network security and manage the impact of cloud traffic on your WAN.

Most Popular Programming Stories

More for Developers

RSS Feeds

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