Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 509
  • Last Modified:

transparent static text on bitmap background problem

hi,
on the function OnCtlColor
i am doing the following in order to draw background bitmap.
{
HBRUSH hbr;

     hbr=CDialog::OnCtlColor(pDC,pWnd,nCtlColor);
         
     static HBRUSH hBrush=NULL;
     if(nCtlColor == CTLCOLOR_DLG)
     {
          CBitmap bitmap;
          bitmap.LoadBitmap(IDB_BACK);      
          if(!hBrush)
               hBrush=CreatePatternBrushbitmap);
               hbr=hBrush;    
     }
return hbr;
}


i want to show the static text i got on this dialog with the transparent style but what i get is the gray background.
i checked the transparent box in the properties.
some1 maybe got a solution?
thanks.
0
talsp
Asked:
talsp
1 Solution
 
DanRollinsCommented:
Is the rest of the dialog background correct?  

If you want to modify the background color for the static control itself, you must change your IF statement so that CTLCOLOR_STATIC is also handled.

You may also need to handle OnEraseBkgnd().

-- Dan
0
 
Roshan DavisCommented:
Derive a class from CStatic
handle WM_ERASEBACKGROUND. In thie OnEraseBackground function draw the bitmap u want.

If u want to draw the image of the dialog, just set that bitmap to this class. This class wants to keep a memory dc of this bitmap, and draw it on OnErasebackground.

There is no need to draw the static text on the control. That all will done by the parent class

GOOD LUCK

0
 
talspAuthor Commented:
thank you both for your answers but i still can't get it.

DanRollins: i did what u said but now only the checkboxes i am using have transparent labels but all the edit boxes and static text controls still with gray background
(btw the transparent background the checkboxes has now is not "smooth" with the background)

roshmon: i am trying to understand your point, the problem i got is that the static text i am using are created by the resource editor and not dynamically.
i am also having problem to understand it correctly i think.

thanks both an di hope u can help me more.
0
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.

 
Shay050799Commented:
best way is open the bitmap in paintbrush and edit it.
then save it

it'll work

Shay
0
 
DanRollinsCommented:
The "Transparent" checkmark in the dialog properties does not do what it seems like it should do.

See the example at the bottom of this link:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_mfc_CWnd.3a3a.OnCtlColor.asp

You need to set

   pDC->SetBkMode(TRANSPARENT);

so that when the static text is drawn, it does not grey-fill the box.

-- Dan
0
 
talspAuthor Commented:
thanks man,
i really appreciate your help.
the last comment of yours solve the prob.
byebye
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

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.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now