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Yes, it's legal, but I can't recall that I have ever done it on purpose. Maybe that behaviour is defined just because it's better than the alternative of undefined behaviour?

Writing unit tests is...

Hello,

I don't know if this is a common problem, but I've sometimes encountered unexpected runtime issues caused by unsigned values being decremented below zero.

Example 1: "unsigned_value +=...

It's recommended to pass nullptr instead of NULL macro.

First of all, I guess this question is not really related to Visual C++. It's about design decisions, maybe you should try another forum?

Now, to try to answer your question... In an object...

OK, that makes sense. Thank you! I will investigate and debug on some other hardware as well.

It's not NULL. The device context is retrieved from a window and should be valid. I can use the handle later with DrawText and see the results. ChoosePixelFormat returns a non-zero value, so...

PIXELFORMATDESCRIPTOR pfd = {
sizeof (PIXELFORMATDESCRIPTOR), // Size of this structure
1, // Version number
PFD_DRAW_TO_WINDOW | ...

Thanks Igor!!

Sorry about that. I was so certain that I already tried that. I must have made a mistake then, since it obviously works :-)

I create a dynamic library, using "MFC in a Shared DLL".

I export a test method:

h-file:


class CMyClass
{
public:

Did anyone create a modeless dialog as a layered window and successfully made it stay "on top" (always visible) ? I can't make it work in Windows XP.

I created a dialog class from CDialogEx, set...

Hello!

How can I disable a category of CMFCRibbonBar? In other words, I want the text in the category tab to be grayed out and ignore any clicks on it to prevent its elements from being shown. In...

How can I skip creation of the main menu when MainFrame is derived from CMDIFrameWndEx?

I tried following the same steps as with CMDIFrameWnd (http://support.microsoft.com/kb/131368). However,...

@Victor,

Sorry, let me clarify...

GetID is a method of CMFCRibbonBaseElement (and CMFCRibbonQuickAccessCustomizeButton is derived from this class). It returns the command ID according to MSDN...

Thanks for your reply.

I suppose you mean ON_UPDATE_COMMAND_UI, but for that I need the ID of the control, right? Unfortunately, GetID() returns 0 if I call the button when it's clicked, so I...

How to get a pointer to the customize button that belongs to the CMFCRibbonBar in Visual Studio 2010?

Or, what I really need is to change the tooltip message for the...

We have migrated to Visual Studio 2010, but have problems with relative paths (that is when selecting a file in Solution Explorer and showing File Properties).

The problem is when using...

I now also tried overriding CDockablePane::IsResizable and return false. Well, it didn't help.

Please, anyone? Is it really impossible to prevent resizing?? :-/

I now created a new MFC project with VS2010 and added just my CDockablePane class. See attached file. You can now see trace for yourself. Please advise.

Well, same result...

CString strRes;
strRes.Format(_T("%d\n"), res);
TRACE(strRes);

It only outputs many rows with "1" when mouse is inside the pane. When hovering mouse over the border or...

OK, I see how it's supposed to work. I also read here: http://msdn.microsoft.com/en-us/magazine/cc301402.aspx, where it says "If the mouse is in the left or right border, the default proc returns...

OK, here is the relevant code trying to prevent changing the width:

From class header file:


public:
afx_msg void OnWindowPosChanging(LPWINDOWPOS lpWndPos);


From source file:

Thanks for the suggestion. I tried it now, but I couldn't prevent resizing of the window (though I noticed OnSize is no longer being called if I try to push the original size to...

I'm rebuilding a MFC MDI application with the new extended classes (CMDIFrameWndEx, etc) in Visual Studio 2010. All OK except for some CDialogBars that I have some trouble regarging keeping same...

Thanks again for your informative reply.

When rewriting to use std::vector instead, I miss the "SetAt" method from CArray. Is there any equivalent with bounds checking in STL to prevent writing to...

First, thanks to Philip for your reply.

1. The line "std::vector<int> vecFirst = arr.GetAt(0);" is causing the exception.

2. Agreed, sorry for not using const correctness in this example.
...