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Hi,
I have a Table Layout Panel with Active X controls in each cell. Everything is created in VB.NET, but I should note that the Active X controls are created via COM, and are C++ objects.
Iinstantiate diferent TLP's according to the format selected by the user (3 columns, 3 rows, etc). The TLP's dimensionsare to remain fixed after the user selects the format. From those dimensions, the dimensions of the Active X Controls are calculated and set manually (I can't use DockStyle.Fill because the Active X's dimensions must be a multiple of 8).
This works fine for most formats. But for those formats with smaller column width, the ActiveX controls are resized by user32.dll in an undesired way. Say, if I create themof 150x932 pixels, WM_SIZE is posted and changes it to 192x192 first, and 154x192 later. I wanted it to remain 150x932, but it seems that some property of the TLP and/or the ActiveX is triggering this resize.
Any hints? While I wait for a reply, I'll try to reproduce this issue in an isolated Test Form.
Cheers
| | dario_ramos Thursday, September 17, 2009 12:40 PM | This code reproduces the issue:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Get width and height inputted in respective textboxes
Dim iWidth As Integer = Val(tb_Width.Text)
Dim iHeight As Integer = Val(tb_Height.Text)
' Resize TLP
TableLayoutPanel1.Width = iWidth
TableLayoutPanel1.Height = iHeight
'Clear Styles
TableLayoutPanel1.ColumnStyles.Clear()
TableLayoutPanel1.RowStyles.Clear()
TableLayoutPanel1.RowStyles.Add(New RowStyle(SizeType.Percent, 100))
'TableLayoutPanel1.RowStyles.Item(0).Height = TableLayoutPanel1.Height
For k As Integer = 0 To TableLayoutPanel1.ColumnCount - 1
TableLayoutPanel1.ColumnStyles.Add(New ColumnStyle(SizeType.Percent, CSng(100 / 3)))
'TableLayoutPanel1.ColumnStyles.Item(k).Width = CSng(TableLayoutPanel1.Width / 3)
Next
TableLayoutPanel1.GrowStyle = TableLayoutPanelGrowStyle.FixedSize
TableLayoutPanel1.Controls.Clear()
For j As Integer = 0 To TableLayoutPanel1.ColumnCount - 1
Dim console As New AxConsoleLibrary.AxCoConsoleEx
console.Width = CInt((TableLayoutPanel1.Width \ 3) - (4 + (3 - 1)))
console.Height = CInt((TableLayoutPanel1.Height \ 1) - ((2 * 1) + (1 + 1)))
TableLayoutPanel1.Controls.Add(console)
TableLayoutPanel1.Refresh()
Next
End Sub
End Class
Inside the for loop, if I insert a Button or another UserControl defined by mein VB.NET, everything works smoothly. Therefore, AxCoConsole, which is written in C++and uses COM, has a problem. I'll look around its properties, but if this rings a bell to anyone, any help would be appreciated | | dario_ramos Thursday, September 17, 2009 2:42 PM | This is part of the declaration of AxCoConsole:
///////////////////////////////////////////////////////////////////////////////
/////////////////////// CoConsoleEx class definition //////////////////////////
///////////////////////////////////////////////////////////////////////////////
class ATL_NO_VTABLE CCoConsoleEx : public CComObjectRootEx<CComSingleThreadModel>,
public CStockPropImpl<CCoConsoleEx,::ICoConsoleEx>,
public IPersistStreamInitImpl<CCoConsoleEx>,
public IOleControlImpl<CCoConsoleEx>,
public IOleObjectImpl<CCoConsoleEx>,
public IOleInPlaceActiveObjectImpl<CCoConsoleEx>,
public IViewObjectExImpl<CCoConsoleEx>,
public IOleInPlaceObjectWindowlessImpl<CCoConsoleEx>,
public ISupportErrorInfo,
public IConnectionPointContainerImpl<CCoConsoleEx>,
public CProxy_ICoConsoleExEvents<CCoConsoleEx>,
public IPersistStorageImpl<CCoConsoleEx>,
public ISpecifyPropertyPagesImpl<CCoConsoleEx>,
public IQuickActivateImpl<CCoConsoleEx>,
public IDataObjectImpl<CCoConsoleEx>,
public IProvideClassInfo2Impl<&CLSID_CoConsoleEx, &__uuidof(_ICoConsoleExEvents), &LIBID_ConsoleLibrary>,
public CComCoClass<CCoConsoleEx, &CLSID_CoConsoleEx>,
public CComControl<CCoConsoleEx> {
public:
CCoConsoleEx();
DECLARE_OLEMISC_STATUS( OLEMISC_RECOMPOSEONRESIZE | OLEMISC_CANTLINKINSIDE | OLEMISC_INSIDEOUT | OLEMISC_ACTIVATEWHENVISIBLE | OLEMISC_SETCLIENTSITEFIRST )
DECLARE_REGISTRY_RESOURCEID( IDR_COCONSOLEEX )
After the COM_MAP:
BEGIN_PROP_MAP(CCoConsoleEx)
PROP_DATA_ENTRY("_cx", m_sizeExtent.cx, VT_UI4)
PROP_DATA_ENTRY("_cy", m_sizeExtent.cy, VT_UI4)
PROP_ENTRY_TYPE("Font",DISPID_FONT,CLSID_StockFontPage,VT_DISPATCH)
END_PROP_MAP()
BEGIN_CONNECTION_POINT_MAP(CCoConsoleEx)
CONNECTION_POINT_ENTRY(__uuidof(_ICoConsoleExEvents))
END_CONNECTION_POINT_MAP()
BEGIN_MSG_MAP(CCoConsoleEx)
MESSAGE_HANDLER(WM_MOUSEMOVE, OnMouseMove)
MESSAGE_HANDLER(WM_TIMER, OnTimer)
MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBkgnd)
MESSAGE_HANDLER(WM_DROPFILES, OnDropFiles)
MESSAGE_HANDLER(WM_MOUSEWHEEL, OnMouseWheel)
MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
MESSAGE_HANDLER(WM_LBUTTONUP, OnLButtonUp)
MESSAGE_HANDLER(WM_RBUTTONUP, OnRButtonUp)
MESSAGE_HANDLER(WM_MBUTTONDOWN, OnMButtonDown)
MESSAGE_HANDLER(WM_RBUTTONDOWN, OnRButtonDown)
MESSAGE_HANDLER(WM_LBUTTONDBLCLK, OnLButtonDblClk)
MESSAGE_HANDLER(WM_CHAR, OnChar)
MESSAGE_HANDLER(WM_SIZE, OnSize)
MESSAGE_HANDLER(WM_CREATE, OnCreate)
CHAIN_MSG_MAP(CComControl<CCoConsoleEx>)
DEFAULT_REFLECTION_HANDLER()
END_MSG_MAP()
// ISupportsErrorInfo
STDMETHOD(InterfaceSupportsErrorInfo)(REFIID riid) {
static const IID* arr[] = {
&IID_ICoConsoleEx,
};
for (int i=0; i<sizeof(arr)/sizeof(arr[0]); i++)
if (InlineIsEqualGUID(*arr[i], riid))
return S_OK;
return S_FALSE;
}
// IViewObjectEx
DECLARE_VIEW_STATUS( VIEWSTATUS_SOLIDBKGND | VIEWSTATUS_OPAQUE )
// Font Property
CComPtr<IFontDisp> m_pFont;
void OnFontChanged() {
ATLTRACE(_T("OnFontChanged\n"));
}
public:
HRESULT OnDrawAdvanced(ATL_DRAWINFO& di);
DECLARE_PROTECT_FINAL_CONSTRUCT()
DECLARE_GET_CONTROLLING_UNKNOWN() //Permite agregar objetos COM al ActiveX
HRESULT FinalConstruct();
VOID FinalRelease();
After that, a lot of methods are declared - Edited bydario_ramos Thursday, September 17, 2009 5:01 PMMissing line break
-
| | dario_ramos Thursday, September 17, 2009 5:00 PM | After some investigation, it seems that ATL controls cannot control their own size. That's done by their container, in this case a Table Layout Panel. But how the ____ do I avoid those resizes? I'm setting the ATL controls manually in the Form, so why is it changing? | | dario_ramos Thursday, September 17, 2009 6:16 PM | I solved it with this hack in VB.NET:
console.Width = CInt((TableLayoutPanel1.Width \ 3) - (4 + (3 - 1)))
console.Height = CInt((TableLayoutPanel1.Height \ 1) - ((2 * 1) + (1 + 1)))
console.MinimumSize = New System.Drawing.Size(console.Width, console.Height)
The third line prevents resizes which reduce the console's size. As I said before, this is a hack and not an acceptable solution. If someone finds a better one, I'm all eyes for it | | dario_ramos Thursday, September 17, 2009 6:36 PM | Hi,
Do you mean the Active X control has been resized when you add it to tableLayoutPanel?
I suggest you to set style of the TableLayoutPanel control to autosize and check whether the Active Xcontrol has been resized. AtuoSize will make the TableLayoutPanel control be sized with its content. This will avoid the TableLayoutPanel to resize the control.
If Active X control still resized, I think you need to check the Active X control.
TableLayoutPanel1.ColumnStyles.Clear()
TableLayoutPanel1.ColumnStyles.Add(New ColumnStyle(SizeType.AutoSize))
TableLayoutPanel1.RowStyles.Clear()
TableLayoutPanel1.RowStyles.Add(New RowStyle(SizeType.AutoSize))
TableLayoutPanel1.AutoScroll = True
Best regards,
Ling Wang
Please remember to click “Mark as Answer�on the post that helps you, and to click “Unmark as Answer�if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. | | Ling Wang Wednesday, September 23, 2009 11:46 AM |
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