I am trying to call a fuction a a C# dll using the
GetProcAddress, but the returned handle is null, wheras
the LoadLibrary of the container dll succeeds, I write
the function name as it is written in ducumentaion, I
tried to use dumpin, but it doesn't show any method name.
what does this mean and how I can call this fucntion 1 3174
DMamoun,
You aren't going to be able to do this, because you have no way of
dereferencing the pointer that GetProcAddress returns. However, the next
version of .NET will allow you to define a delegate, and then call that
delegate when given the pointer in memory to a function (this will be done
through the Marshal class).
Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"DMamoun" <an*******@disc ussions.microso ft.com> wrote in message
news:1b******** *************** *****@phx.gbl.. . I am trying to call a fuction a a C# dll using the GetProcAddress, but the returned handle is null, wheras the LoadLibrary of the container dll succeeds, I write the function name as it is written in ducumentaion, I tried to use dumpin, but it doesn't show any method name. what does this mean and how I can call this fucntion This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: ZhangZQ |
last post by:
if there is a function in a win32 dll, it is definition is
int add(int a, int b);
how to define that function pointer in C#?
thank you very much!
|
by: Dirk Vanhaute |
last post by:
I have only small knowledge of c++, but I would like to compile the
example in
http://support.microsoft.com/kb/q246772/
HOWTO: Retrieve and Set the Default Printer in Windows
I included "#include <Windows.h>" at the start, and the following goes
wrong :
BOOL DPGetDefaultPrinter(LPTSTR pPrinterName, LPDWORD pdwBufferSize)
{
....
|
by: Harkos |
last post by:
Hello,
I have some code using LoadLibrary, GetProcAddress and FreeLibrary methods
of Win32 API. I can correctly load and dispose any native DLL and even
retrieve the function pointer with GetProcAddress. What I can't is to run
this method. So, does anybody knows how to call this function pointer.
's,
Harkos
|
by: Jason Bell |
last post by:
I know this functionality already exists in .NET 2.0 via
Marshal.GetDelegateForFunctionPointer, but I'd rather not force my users to
use a beta framework (not to mention the fact that I'm still using good old
vs .net 2002, that refuses to use the 2.0 framework).
Specifically, I'm using an external declaration of the Simple Directmedia
Library function SDL_GL_GetProcAddress to acquire the procedure addresses
of OpenGL extensions. ...
|
by: AK |
last post by:
I'm using a .NET Windows Forms Applications project.
I'm using LoadLibrary & GetProcAddress to use a DLL function.
This is all done in the main cpp file.
I would like to use this DLL function in a .h file. So I code :
(Proc2) (0x378, 12)....... (where Proc2 is the function)
I get a compiler error : C2065 : 'Proc2' : undeclared identifier.
I'm guessing I'm not calling this function properly - how can I fix this
problem ?
When I write a...
| |
by: Lloyd Dupont |
last post by:
I have some managed C++ interacting with native DLL,
for good integration I'm setting up some function pointer in the native DLL,
passing some function pointer from the managed world.
=================
typedef void __cdecl NSLogHandler(Oid exception);
static void __cdecl ObjectiveNSLogHandler(Oid ns_str)
{
NSString^ str = dynamic_cast<NSString^>( ObjcRuntime::GetId(ns_str) );
Console::WriteLine("GNUstep.NET: "+str);
}
|
by: Alan |
last post by:
Good afternoon,
I'm having difficulties loading a dll in Microsoft Visual Studio 2003,
that was supplied to me by another company. They have supplied me with
test code, which causes my program to crash, see below:
#include "stdafx.h"
#include "stdio.h"
#include "stdlib.h"
#include <windows.h>
|
by: dolphin |
last post by:
Hi All!
I have a question that how to call a function just using a string.
For example
There is a .cpp file named a.cpp.There are some functions::fun1()
fun2() fun3().
I have another fucntion void funcall( char *pch). if I pass a
argument char* p1="fun1" .How do I call the function fun1() using that
string "fun1"that I pass.
|
by: AS |
last post by:
Hi ,
I have exported the following function from a dll ,
extern "C" DECL_MYEXPORTS LRESULT CALLBACK MouseProc(int nCode,WPARAM
wParam,LPARAM lParam);
//in my calling code , I tried to access the function as below:
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
| |
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |