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I need open new form and close that form, from wich it was opened.
How to do it?
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You create an instance of the form and call ShowDialog(). Then you call Close() to close it.
I recommend buying a book to help you learn this sort of entry level stuff.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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thak you for advice
What book you recomend?
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Inside C# used to be good, but there's no 2.0 version. I'd look for a Microsoft Press book, tho, just choose whatever seems to be aimed at your level.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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I'm writing a Windows Explorer-like clone for myself, and I'm running into a problem with empty disk drives.
When I run the application, by building the project, it works as expected. However, if I run the executable directly, I get an error window titled:
".NET-BroacastEventWindow.1.0.3300.0.1: ExplorerPlus.exe - No Disk."
Normally, this error references drive A:. (Which, of course, is empty.)
However, I wrap the appropriate calls in try...catch blocks. In fact, if I remove the try...catch blocks, this error will pop-up before .NET displays its message about the un-caught exception.
This happens for both debug and release versions of the executable. Running the executable directly results in these errors whenever the application accesses an empty drive. However, when the executable runs as a result of the project being built, it runs just fine.
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Hi,
in my Explorer replacement, I used the native function SetErrorMode to avoid
the low-level error reporting taht occurs by default on empty drives.
It works on all .NET versions (tested on XP only).
This is part of my code:
using (new LP_SetErrorMode(ErrorModes.FailCriticalErrors)) {
}
using System;
using System.Runtime.InteropServices;
namespace LP_Core {
[Flags]
public enum ErrorModes {
Default=0x0,
FailCriticalErrors=0x1,
NoOpFaultErrorBox=0x2,
NoAlignmentFaultExcept=0x4,
NoOpenFileErrorBox=0x8000
}
public struct LP_SetErrorMode : IDisposable {
private int oldErrorMode;
public LP_SetErrorMode(ErrorModes mode) {
oldErrorMode=SetErrorMode((int)mode);
}
void IDisposable.Dispose() {
SetErrorMode(oldErrorMode);
}
[DllImport("kernel32.dll")]
private static extern int SetErrorMode(int mode);
}
}
Hope this helps.
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Very ingenious, thank you. It works perfectly.
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Still trying to build a VS60 project in .NET 2003
Now I"m compiling and getting a link error: LINK : fatal error LNK1104: cannot open file 'mfc42.lib'
I thought mfc42.lib would be a known default lib. I also cannot find it in my project to see where its included.
Any ideas? TIA
-C
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Once again.. I solved my own problems. I had a library built in VS60 that was incompatible.
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We have alot of VS60 code that we want to start using .NET 2003 as our build
environment. I figure, I load the project and see what happens.
First error is about CString.
'CString' : is not a member of 'ATL::CStringT<basetype,stringtraits>'
with
[
BaseType=char,
StringTraits=StrTraitMFC_DLL<char>
]
Does .NET use CString or only CStringT? Anyway to have it accept CString or do we need to go and do a global replace
for CString w/ CStringT?
Also, alot of our code is for DLLs, any issues w/ the export functions etc?
Any ideas on this or other porting issues we may run into would be
appreciated. Thanks.
-C
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This question has nothing to do with .NET, it's a C++ question.
Wheatbread wrote: Does .NET use CString or only CStringT? Anyway to have it accept CString or do we need to go and do a global replace
for CString w/ CStringT?
You may need a different #include. A #define would change the definition globally if this is what's needed.
Wheatbread wrote: Any ideas on this or other porting issues we may run into would be
appreciated. Thanks.
If you've ever written any code that expects to reuse a variable declared inside a for loop ( as in for(int i =0;... ), this will need to be changed, because VC2002 onwards corrects this error in VC6, with regard to standard C++.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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I discovered
.NET doesn’t like CString::CString((LPCTSTR)o_pBuffer)
Prefers (LPCTSTR)o_pBuffer
Weird.
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You haven't done anything with .NET, so stop referring to it! When you start writing C++ code using CLI or the .NET classes, then you can start, but until then, you're using plain old Visual C++ 2003.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Well, part of this is down to MS's original confusing name for VC++ 7.x, i.e., Visual C++ .NET 2003 - which means it's Visual C++ that subsumes MFC, ATL, etc. plus the new .NET.
However, in the current context it would be clearer to refer to perhaps VC++ 7, 8 or 2003, 2005.
Kevin
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Wheatbread wrote: Any ideas on this or other porting issues we may run into would be
appreciated.
Google on "breaking changes in visual c++". You'll see a few useful MSDN links. Ditto "Breaking chages in MFC."
Kevin
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hello,
I created a win32 project(precompiled headers, console application). This was created to create a service( for which i used SERVICE_TABLE_ENTRY, SERVICE_STATUS, SERVICE_STATUS_HANDLE, etc... required structures and methods).
Environment used:
Windows XP, VC++.Net2005.
Should work on:
I want to make this exe to run on windows 95,98, XP, 2000 and Vista.
my stdafx.h file contains:
#pragma once
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#include <stdio.h>
#include <tchar.h>
// TODO: reference additional headers your program requires here
#pragma warning (disable:4430)//... i added this, since i was getting this error. and in msdn this //was given as its solution.
To this project, i have added two more files:
1) USBActivity.h
2) USBActivity.cpp
In USBActivity.cpp the hierarchy of headers included is as follows:
#include "stdafx.h"
#include <initguid.h>
#include "stdio.h"
#include <setupapi.h>
#include <dbt.h>
#include "afxcmn.h"
#include "cfgmgr32.h"
#include "Blowfish_Data_FileEncrpt.h"
#include "USBActivity.h"
The project properties are set as: Use windows Standard libraries, WIN32;_DEBUG;_CONSOLE as preprocessor definitions, Basic Run-TimeChks: Both (/RTC1, equiv. to /RTCsu) , RunTime-Library --> Multi-threaded Debug (/MTd), Use Precompiled Header (/Yu), Linker+AdditionalDependencies-->setupapi.lib.
I am getting following build errors:
Compiling...
stdafx.cpp
Compiling...
Blowfish_Data_FileEncrpt.cpp
DataSentinelService.cpp
d:\microsoft visual studio 8\vc\platformsdk\include\commctrl.h(29) : error C2146: syntax error : missing ';' before identifier 'HRESULT'
d:\microsoft visual studio 8\vc\platformsdk\include\prsht.h(97) : error C2065: 'CALLBACK' : undeclared identifier
d:\microsoft visual studio 8\vc\platformsdk\include\prsht.h(97) : error C2065: 'LPFNPSPCALLBACKA' : undeclared identifier
d:\microsoft visual studio 8\vc\platformsdk\include\prsht.h(97) : fatal error C1903: unable to recover from previous error(s); stopping compilation
DoubleBuffering.cpp
SHA.cpp
USBActivity.cpp
d:\microsoft visual studio 8\vc\platformsdk\include\commctrl.h(29) : error C2146: syntax error : missing ';' before identifier 'HRESULT'
d:\microsoft visual studio 8\vc\platformsdk\include\prsht.h(97) : error C2065: 'CALLBACK' : undeclared identifier
d:\microsoft visual studio 8\vc\platformsdk\include\prsht.h(97) : error C2065: 'LPFNPSPCALLBACKA' : undeclared identifier
d:\microsoft visual studio 8\vc\platformsdk\include\prsht.h(97) : fatal error C1903: unable to recover from previous error(s); stopping compilation
Generating Code...
DataSentinelService - 8 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
I guess the error is because of :
--> calling a function in an SDK header file that is currently not supported in current build environment.
Could anybody help me out... in fixing this problem.
I have also seen the project given at the following link: http://www.codeproject.com/system/RemoveDriveByLetter.asp?df=100&forumid=294340&exp=0&select=1822184&tid=1815457#xx1822184xx
Here, it is given in vc++ 6. and when i compared the build environment everything was same.
In order to enumerate enumerate all the USB devices connected to PC, using a windows service... i have to use setupAPI in order to get setupDiGetDevClass etc methods.
I also tried with including windows.h file in stdafx.h. but it was also not helpful. since was included by-default. And on including it again i am getting the following error:
d:\microsoft visual studio 8\vc\atlmfc\include\afxv_w32.h(16) : fatal error C1189: #error : WINDOWS.H already included. MFC apps must not #include <windows.h>
Is there any other alternative?
Thanks
Anee
Anee
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are you sure setupapi is supported in windows95?
don't forget that if you want the same exe to run on all versions of windows you mentioned, WINVER must be set to the oldest version of sdk (in your case, win95). and there may be the origin of your problem. list of correct values for WINVER must be in SDK docs.
when i encounter a problem like this i start from taking a look at where compilation error occured and then searching SDK headers for definition of types that seems to be 'undefined', looking for conditional compilation preprocessor directives around their definitions.
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You're in the wrong forum. This belongs in the Visual C++ forum. Your post has nothing to do with the .NET Framework.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Hi All,
I am beginner to HTML and i was trying to implement frames in HTML file. I want to make frames in 2 rows. In first row there will be only one column and in second there will be 2 columns. I have written HTML code for the above as
<title>Test Frames
<BODY>
YOUR BROWSER IS SUPPORTED
</body>
I am not getting output with the above HTML code in required fashion. Is there any fault in above HTML file. Please help me out.
Regards,
Sunil Reddy
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Hi,
Try this
hope this helps.
Greetings
Kaine
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I am using a PropertyGrid control to expose the properties of a class. One of the class properties is an Image. When you click on the property in the PropertyGrid you get the error 'Object not set to an instance of an object'. I added the [Editor(typeof(ImageEditor),typeof(UITypeEditor))] attribute. When I click the Property I get the standard FileOpen dialog. Is there a way to get it to display the Resource Selector dialog as you would get if you used the actual properties window to edit the image
Alan Seedhouse
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I have searched in google and also in MSDN and have consolidated some points. I would like to know whether any documents made by any of you for your projects. If there is one, please forward it to me. I would like to get PL/SQL Standards and also HTML Standards also. I have some documents with me already. I would like to get the ones that have been used in the project.
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You can find what you're looking for on Microsoft's Patterns and Practices site in MSDN, specifically under the Application Blocks[^] section.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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I don't have windows, but I have a theory for portable .net apps.
All libarys are set to local copy (= true)
Make a native image?
J
JoeJoe rules
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