Icon again

[Egbert Zijlema]

Hello,

Doing a search thru the Windows forum I found several solutions to include an icon in a dialog.
It does not work. What I want is a dialog that should be a lookalike
of a yes/no messagebox. It should display the default questionmark. Not in the
caption bar, by the way, but in the dialog itself. Here's the callback code (as you can see, I've tried them all):

CALLBACK FUNCTION IconInclude()
  LOCAL hIcon AS LONG
  
  SELECT CASE CBMSG
    CASE %WM_INITDIALOG
      hIcon = LoadIcon(BYVAL %NULL, BYVAL %IDI_QUESTION)
      ' SendMessage CBHNDL, %WM_SETICON, %ICON_BIG, hIcon 
      DIALOG SEND CBHNDL, %WM_SETICON, %ICON_BIG, hIcon
      ' SetClassLong CBHNDL, %GCL_HICON, hIcon
  END SELECT
END FUNCTION

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[Peter Lameijn]

Try this one (you need a label or so as 'carrier' for the icon) ...

#Compile Exe
#Include "Win32api.inc"
Global hDlg As Long

CallBack Function IconInclude()
Local hIcon As Long
Select Case CbMsg
  Case %WM_INITDIALOG
    Control Add Label, hDlg&, 9000, "",10, 5, 25, 25,%SS_ICON
    Control Add Button, hDlg&, 9001, "OK",50, 10, 25, 15
    hIcon = LoadIcon(ByVal %NULL, ByVal %IDI_QUESTION)
    Control Send hDlg, 9000, %STM_SETIMAGE, %IMAGE_ICON, hIcon
  Case %WM_COMMAND
    Select Case CbCtl
      Case 9001
        Dialog End hDlg
    End Select
End Select
End Function

Function PbMain() As Long
  Dialog New 0 , "Testing...",,, 100, 40, To HDlg
  Dialog Show Modal hDlg, Call IconInclude
End Function

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Peter.
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[This message has been edited by Peter Lameijn (edited October 21, 2000).]

[Egbert Zijlema]

Peter,

Thanks very much.
Where did you find this information? I searched both 'bibles', Petzold and Brent/Newcomer, for it but did'nt find. To begin with: creating a label with the %SS_ICON-style was completely new for me. PBDLL's on-line help does not mention it at all!

Secondly: I knew how to load an icon for the caption bar (in fact: how to change the default SYSMENU-icon into one of your own). The message to use there is WM_SETICON. So, my simple mind told me to do the same for a control. But that's a quite different thing, obviously. As said, I did'nt find this info. Nor did I see examples when searching PB's message boards on "icons". All messages found only discuss the caption bar icon.

One additional question: do you also know how to disable the close button (I mean: the 'x' in the right upper corner)? The PBDLL editor uses itself in its error messages dialog.


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[Gafny Jacob]

To disable the close button

   Dialog New 0 , "Testing...",,, 100, 40, To HDlg 

   SysMenu& = GetSystemMenu (hDlg, %FALSE)
   DeleteMenu SysMenu&, %SC_CLOSE, 0   

   Dialog Show Modal hDlg, Call IconInclude

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[Peter Lameijn]

Egbert,

I found demo code some time ago (somewhere on the BBS, don't remember where)
There is some useful info in the win32api helpfile under "Static Controls"
Normally you could also use Control Add Image ..., but that only seems to work with images embedded in the resourcefile, not with system icons.



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Peter.
mailto[email protected][email protected]</A>

[Lance Edmonds]

DDT image controls need to be initially loaded with a image from a resource file, but can be subsequently changed with CONTROL SET IMAGE, etc. It is important to note that DDT does not release the previous image handle, so it becomes your responsibility to explicitly release the old image handle...

For example:

CONTROL SEND CBHNDL, Id&, %STM_GETIMAGE, %IMAGE_BITMAP, 0 TO hBmp&
CONTROL SET IMAGE hDlg&, Id&, NewImage$ ' or use CONTROL SEND...%STM_SETIMAGE, etc.
DeleteObject hBmp&

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Lance
PowerBASIC Support
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