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VB Forum / Win API / August 2008Change checkbox background color
I have create a checkbox on a Message box window using CreateWindowEx API. I wish to now change the background color of this check box since it always seems to take the default background color. How can I achieve this? Thank you. >I have create a checkbox on a Message box window using CreateWindowEx API. >I > wish to now change the background color of this check box since it always > seems to take the default background color. How can I achieve this? Thank > you. And what's wrong with the default? Don't you think that's what 99.99% of users would want? If a users sets custom system colors, don't you think that's what they want and what your app should use? For the most part, don't mess around with colors for system objects (like the background of a window or control). The only exception I can think of is if you need to bring special attention for a short period of time. (for example, until the user corrects something).  SignatureMike Microsoft MVP Visual Basic Thanks for responding to my post. The message displays a warning.. 'You are publishing to a removable drive' and similar and the check box is for 'Don't show this warning again.' It's button style is BS_AUTOCHECKBOX. The code has been working fine in all version since several years now. The issue is centered around vista which has a 2 color message box. The check box is placed in the bottom half of the message box aligned with the butttons. It gets the default white background color which opposed to the gray area in the bottom half of the message box so I want to match that color. Thanks. > >I have create a checkbox on a Message box window using CreateWindowEx API. > >I [quoted text clipped - 10 lines] > if you need to bring special attention for a short period of time. (for > example, until the user corrects something). > Thanks for responding to my post. The message displays a warning.. 'You are > publishing to a removable drive' and similar and the check box is for 'Don't [quoted text clipped - 5 lines] > gets the default white background color which opposed to the gray area in the > bottom half of the message box so I want to match that color. In that case, I think it is better to ditch the message box altogether (for Vista) and use the underlying TaskDialogs. That will allow you to do it all natively. SignatureDean Earley (dean.earley@icode.co.uk) i-Catcher Development Team iCode Systems Are there any examples of task dialog API functionality? Thanks > > Thanks for responding to my post. The message displays a warning.. 'You are > > publishing to a removable drive' and similar and the check box is for 'Don't [quoted text clipped - 9 lines] > (for Vista) and use the underlying TaskDialogs. That will allow you to > do it all natively. Articulate <Articulate@discussions.microsoft.com> schrieb im Beitrag <B27CC136-1F3F-44E3-A1E6-37E6B9AF9B3F@microsoft.com>... > I have create a checkbox on a Message box window using CreateWindowEx API. I > wish to now change the background color of this check box since it always > seems to take the default background color. How can I achieve this? Thank you. How did you create the checkbox? There is no standard window class for this. How the background is to be drawn or the background colour is to be set depends on the window class. Beside this you shouldn't add a checkbox to a message box which should serve only to show a warning, a piece of informaton, or ask a question. For more complex user interfaces you should use a dialog/a form. Signature---------------------------------------------------------------------- Thorsten Albers albers(a)uni-freiburg.de ---------------------------------------------------------------------- > How did you create the checkbox? There is no standard window class for > this. ???????????????????? Read the first page of the doc... > How did you create the checkbox? There is no standard window class for > this. It's a BUTTON class. > Beside this you shouldn't add a checkbox to a message box which should > serve only to show a warning, a piece of informaton, or ask a question. For > more complex user interfaces you should use a dialog/a form. At a guess it is a "don't show this again" option. Why they want to change the background colour of it, I don't know. SignatureDean Earley (dean.earley@icode.co.uk) i-Catcher Development Team iCode Systems Dean Earley <dean.earley@icode.co.uk> schrieb im Beitrag <Opc3Ph2AJHA.760@TK2MSFTNGP05.phx.gbl>... > It's a BUTTON class. Ups, my fault. > > Beside this you shouldn't add a checkbox to a message box which should > > serve only to show a warning, a piece of informaton, or ask a question. For > > more complex user interfaces you should use a dialog/a form. > At a guess it is a "don't show this again" option. Even then a message box is not what he should use. @Articulate: Check the MSDN documentation on WM_CTLCOLORBTN. It is not an easy thing to change the background of a checkbox. The probably easiest way with this window class would be to let the checkbox be drawn (e.g. DrawFrameControl()) and then change the colour of every pixel inside the checkbox frame which has the background colour. Signature---------------------------------------------------------------------- Thorsten Albers albers(a)uni-freiburg.de ---------------------------------------------------------------------- Thanks for responding to my post. The message displays a warning.. 'You are publishing to a removable drive' and similar and the check box is for 'Don't show this warning again.' It's button style is BS_AUTOCHECKBOX. The code has been working fine in all version since several years now. The issue is centered around vista which has a 2 color message box. The check box is placed in the bottom half of the message box aligned with the butttons. It gets the default white background color which opposed to the gray area in the bottom half of the message box so I want to match that color. Thanks. > Articulate <Articulate@discussions.microsoft.com> schrieb im Beitrag > <B27CC136-1F3F-44E3-A1E6-37E6B9AF9B3F@microsoft.com>... [quoted text clipped - 11 lines] > serve only to show a warning, a piece of informaton, or ask a question. For > more complex user interfaces you should use a dialog/a form. |
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