Dialog size behaviour: VO dialog appears narrower (only width!) in X#

[Chris]

Hi Stefan,

Indeed, it should show identical in VO and X#. Can you please create and post a small (compilable) sample demonstrating this different behavior so we can test with it?

[leon-ts]

Stefan,
Perhaps there is an influence from the .NET framework itself. There are known features that result in slight visual differences when displaying Win32 windows from native Win32 applications (like VO) and from a .NET application.
More info here:
https://stackoverflow.com/questions/147 ... -5-net-4-0

[stefan.ungemach]

Hi Chris,

here is a simple example. The following code is exactly the same in VO and XSharp:

FUNCTION DialogWindowTest AS VOID
    LOCAL oDlg AS MyDialogWindow
    LOCAL oOwner AS OBJECT
    
    oOwner := GetObjectByHandle(GetActiveWindow())
    DO WHILE IsAccess( oOwner, #Owner )
        oOwner := oOwner:Owner
    ENDDO
    oDlg := MyDialogWindow{}    
    oDlg:Size := dimension{ 300, 300 }
    oDlg:Show( SHOWCENTERED )
    RETURN
    
    
CLASS MyDialogWindow INHERIT myDialogWindow_vo
    
    METHOD _Setup() AS VOID
        
        
        LOCAL oPsh AS pushButton
        LOCAL nX := 10 AS INT
        LOCAL nW := 200 AS INT
        
        oPsh := pushButton{ SELF, -1, point{nX,150}, dimension{ nW,20 },"OK" }
        oPsh:Show()
        
        SELF:Size := dimension{ nX + oPsh:size:width + nX , SELF:Size:height }
        SELF:Caption := "myDialogWindow XSharp "+ntrim(SELF:size:width)+" x "+ntrim(SELF:size:height)
        
        RETURN
        
        
    METHOD Show( kMode )
        
        
        SELF:_Setup()
        
        SUPER:Show( kMode )
        RETURN SELF
        
        
END CLASS    

MyDialogWindow_vo is a newly created DIALOGWINDOW via the window entity editors in VO/X# (all defaults, no modifications). The call of DialogWindowTest on the same machine, same resolution, same time, produces different windows (the X# version resulting a bit too narrow for the control):

​​​​​​​ 

DialogCompare.png (10.42 KiB) Viewed 865 times

[ecos]

Hi Stefan,

try
/subsystemversion:5.00
in "extra command line options"
(Eigenschaften / Build)

Karl

[stefan.ungemach]

Hi Karl,

perfect: that does the trick!

 

DialogX#4.png (7.63 KiB) Viewed 865 times

Now the behaviour is 1:1 to VO. But what kind of magic is this?

[ecos]

I have this "kind of magic" from Robert. He should be able to explain it.
It also suppresses these ugly thick frames around datawindows...

[wriedmann]

Hi Karl,
with "ugly thick frames around datawindows" do you mean these XP style frames?

Screenshot 2023-07-19 160502.png (6.98 KiB) Viewed 865 times

They are present also in VO applications, unfortunately.
Using XIDE this does do not seem to change anything....
Wolfgang

[leon-ts]

Hello Wolfgang,
I also worried about this issue. But judging by this thread, it's a problem in Windows itself (except Windows Server 2012) and it still hasn't been fixed:
https://github.com/dotnet/winforms/issues/3691
And something tells me that, unfortunately, will never be fixed.

[ecos]

Hi Wolfgang,

screenshot 1 without /subsystemversion, screenshot 2 with smaller frames...

 

Screenshot1.png (40.07 KiB) Viewed 865 times

 

Screenshot2.png (44.5 KiB) Viewed 865 times

[ecos]

in VO the datawindows looked like screenshot 2. These "ugly, thick frames" indeed also use space of the canvasarea, so controls don't fit as they did in VO.
IMHO this compiler-switch should be used by default in order to be compatible with VO...