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Ok....I think I'm losing it guys.
I added a testclass like this:
<br />
public ref class TestClass {<br />
public: <br />
TestClass(String^ jj);<br />
~TestClass();<br />
<br />
private:<br />
String^ sPath;<br />
};<br />
With implementation like this:
<br />
TestClass::TestClass(String^ jj)<br />
{<br />
}<br />
<br />
TestClass::~TestClass()<br />
{<br />
}<br />
How much more simple can it get?
Instantiating it like this:
<br />
private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e) {<br />
MFG::TestClass^ ttt = gcnew MFG::TestClass("test");<br />
MessageBox::Show("instance created");<br />
}<br />
Works fine on my dev station of course, but it hangs on two other stations here that are non dev.
Dewm Solo - Managed C++ Developer
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Creation of such a testclass in my project of course works 100% on any workstation.
So now I'm going to create a new DLL with just a test class.
Dewm Solo - Managed C++ Developer
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Ok,....Referencing a test DLL with just a test class does the same at instantiation.
The next thing I'm thinking of trying is a test app that will reference this new test dll and see what happens.
Dewm Solo - Managed C++ Developer
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I creating a windows form application. I Referenced that test dll. In a button's click event created an instance of the test class.
Nothing can go wrong right? I have done this at least a million times. Well ...same problem on the workstation. Does anyone has an idea? There are no other dependencies. There is nothing that can cause such a hang.
...hmmm...Just thought of something. I'm going to try to run a release build. I don't expect much out of this, but who knows what compiler optimizations might come up with.
I tried this and the release builds does exactly the same. An empty app with just a button and reference to a dll that contains only a test class that has a ctor, dtor, and one string member only. It still hangs at creation of a test class object. Does anyone has suggestions? At this point I am wondering if this is not a problem that has to do with the .Net installation on the client station. Although this happens on more than one client station....
How can I debug this? On a client station nonetheless.
Dewm Solo - Managed C++ Developer
modified on Tuesday, December 18, 2007 2:53:56 PM
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Hi, I'm using Visual Studio 2005 C++/CLI. I have overridden the OnPaint() method. If I draw something on the form due to a button click and then Invalidate() is invoked the OnPaint() method then draws the Form1 over thus erasing what I just drew. My work around for this is to define a set of booleans (one for each object) and then check the values of the booleans in the OnPaint() method to see if they need to be repainted. Is there a better way to do this?
Buck
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Handle WM_ERASEBKGND as well, and don't ever call the base class. You wil need to draw the whole form yourself then.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Hi, I'm using visual Studio 2005 C++/CLI. I need to have some Graphics^ shapes on a display and I want them to have NO FILL so they will appear transparent. The System::Drawing::Color does not have a Color::None or Color::Clear. This is probably pretty simple but I can't seem to find the answer.
Buck
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The color is transparent.
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System::Drawing::Color::Transparent ?
*EDIT* Oops I see you knew that
Mark Salsbery
Microsoft MVP - Visual C++
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dear Sirs,
I want that my forms size change according the screen size.
In MFC Visual C++ 6.0 I have got CHelpLayout Class. But In Visual C++ Net 2005 I don't know what to do.
When I put Maximise. The screen Is full but all controls are in the left only other place is empty.
Can you help me ?
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Hi
I wrote this code with /clr , EnumChildWindows is C++ Interop
BOOL CALLBACK EnumWindowsCallback(HWND hWnd, LPARAM lParam){}
EnumChildWindows(hwnd, EnumWindowsCallback, 0);
Error error C3867: 'EnumWindowsCallback': function call missing argument list; use '&EnumWindowsCallback' to create a pointer to member
How to call EnumChildWindows function not using p/invoke ?
Thanks
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EnumChildWindows(hWnd, (WNDENUMPROC)&enumChildWndCallback, 0);
D.
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Thank for your reply , but
BOOL CALLBACK EnumWindowsCallback(HWND hWnd, LPARAM lParam){}
EnumChildWindows(Handle, (WNDENUMPROC)&EnumWindowsCallback, 0);
error C2276: '&' : illegal operation on bound member function expression
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Hi,
I don't know the details in C++ but here is how I do it in C#; it takes a delegate,
and code along these lines where list happened to be an ArrayList:
public delegate bool LP_EnumWindowsProc(IntPtr hWnd, int lParam);
EnumChildWindows(hWnd, new LP_EnumWindowsProc(CollectVisibleWindows), 0);
private static bool CollectVisibleWindows(IntPtr hWnd, int lParam) {
if(IsWindowVisible(hWnd)) list.Add(hWnd);
return true;
}
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I need to write this code in C++/CLI only , VS 2008 , /clr
After trying C++ Interop unsuccessfully , I use p/invoke and .NET delegate
delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);
[DllImport("user32", CharSet=CharSet::Ansi, SetLastError=true, ExactSpelling=true)] static int EnumChildWindows(IntPtr hWndParent, EnumWindowsProc^ lpEnumFunc, IntPtr lParam){}
bool CALLBACK EnumWindowsCallback(IntPtr hWnd, IntPtr lParam){}
void UseIt()
{
EnumWindowsProc^ fp = gcnew EnumWindowsProc(EnumWindowsCallback);
EnumChildWindows(Handle, fp, IntPtr::Zero);
}
error C3350: 'EnumWindowsProc' : a delegate constructor expects 2 argument(s)
error C3867: 'EnumWindowsCallback': function call missing argument list; use '&EnumWindowsCallback' to create a pointer to member
I can't understand
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delegate bool EnumWindowProc(IntPtr hWnd, Int32 lParam);
bool GlobalCallback(IntPtr hWnd, Int32 lParam)
{
return true;
}
DllImport("User32.DLL")]
public static extern void EnumWindows(EnumWindowProc callback, Int32 lParam);
EnumWindowProc^ ewp += gcnew EnumWindowProc(&GlobalCallback);
EnumWindows(ewp, 0);
"We make a living by what we get, we make a life by what we give." --Winston Churchill
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How can I make a form so that,
I have a panel of the left where there are buttons, and when I clik one button; on the right side I have a form related.
It's must appear like codeproject forms; On left a menu and on right side details of each menu item when we click on.
Who can help me ?
I am using Visual c++ .NET 2005
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Hi,
Does anyone has a good article or example to add the Flash.ocx to my application exe (VS C++).
I need to make a setup with a standalone flashplayer, without registering or installing the adobe flash ocx.
thx
Kurt
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Dear Sir,
I am using Visual C++ Net 2005, I am a beginer.
I need to realise a Form like I see codeproject forms.
It means at left a column of items, when you choose an item the details appear at right side. And the left side stay like that without changing.
I try to use FLOWLAYOUTPANEL I put it at the left, but How to change on the right side.
I need that when I click on the button on the left side, I seen a panel with related control that I can fill or display on the right side
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mikobi wrote: I need to realise a Form like I see codeproject forms.
Is this an ASP.NET form or Windows Form?
mikobi wrote: I try to use FLOWLAYOUTPANEL
Try using something else like a TableLayoutPanel or a Split Container.
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I need to do it with windows forms
Can you help me
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Your question is like a ASP.NET question did you ask on that forum?
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Using Visual C++ 6.0, would like to detect anytime a variable value changes during execution, haven't yet discovered a way to do with the Microsoft Debug tool. Any ideas will be helpful. Thanks in advance, Sid Kraft.
Sid
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sidkraft wrote: Using Visual C++ 6.0
is not possible for (Managed) C++/CLI development which is what this forum is for. Please post your questions in an appropriate forum. Take the time to read the directions/guidlines for posting in forums before you post. Your question belongs in the Visual C++ / MFC forum
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Hi, I'm fairly new to C++ and I have a tricky problem with a program I am writing.
I have a loop in place to it keeps showing the data, but I would like a way for the user to be able to stop that.
I have got a snippet of code to pause a program, and want to see if i can use it for this.
void pause()
{
std::string response;
std::getline(std::cin, response);
goto (whatever);
}
Basically, as you can tell, when the user presses enter, the program goes to another point. or at least I think it does.
Any help would be much obliged.
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