dllimport


DllImport is not found C++


I am having trouble with using the DllImport function!
using namespace System;
using namespace System::Runtime::InteropServices;
[DllImport("user32.dll")]
It will show me no attribute when run. I am using a Windows Form with C++. And I am really noob with WindowsForms.
namespace Projekt3{
using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Collections::Generic;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
using namespace System::Runtime::InteropServices;
using namespace System::Threading::Tasks;
using namespace System::IO;
using namespace std;
public ref class next : public System::Windows::Forms::Form
{
[DllImport("user32.dll")]
public static extern IntPtr FindWindow(String sClassName, String sAppName);
[DllImport("user32.dll")]
private static extern bool RegisterHotKey(IntPtr hWnd, int id, int fsModifiers, int vk);
[DllImport("user32.dll")]
private static extern bool UnregisterHotKey(IntPtr hWnd, int id);
public:
next(void)
{
InitializeComponent();
//
//TODO: Konstruktorcode hier hinzuf├╝gen.
//
}
public: enum fsmodifiers
{
NOMOD = 0x0000,
ALT = 0x0001,
CTRL = 0x0002,
SHIFT = 0x0004,
WIN = 0x0008,
};
Your code works perfectly well, in so far as we can see it. For example, this program
using namespace System;
using namespace System::Runtime::InteropServices;
[DllImport("user32.dll")]
extern int MessageBox(System::IntPtr hwnd, System::String^ text, System::String^ caption,
unsigned int uType);
int main(array<System::String ^> ^args)
{
MessageBox((System::IntPtr)0, "foo", "bar", 0);
return 0;
}
produces the expected message box.
It is very much worth pointing out that using p/invoke from C++/CLI seems like a very pointless exercise. You can link to unmanaged code directly. It would be much more natural for this C++/CLI program to be written like so:
#include <Windows.h>
int main(array<System::String ^> ^args)
{
MessageBoxA(0, "foo", "bar", MB_OK);
return 0;
}

Related Links

Cannot create automation object - lotusscript
DllImport is not found C++
Mangled member function name different during dllimport
how to use DllImport in metro-style app
Converting doc file to post script
How can I get a COM component which can be used on Windows phone 8 project with C#
Externs and DLL imports
Mixed native and managed code heap corruption
MarshalDirectiveException
call unmanaged C++ code from C# using pinvoke
Detecting DLL Code Splicing
WOW64 Redirection and LoadLibrary
Using C# dll in Windows phone 7
Python 2.5 Import dll AttributeError
Replacing the Import Table in PE file by standart LoadLibrary
Unresolved external symbol

Categories

HOME
assembly
turing-machines
jmeter
mysql-workbench
google-apps
onclick
hpc
polling
frontend
flume
barcode
ipmitool
favicon
azure-powershell
microsoft-dynamics-nav
mvc-mini-profiler
jersey-1.0
gmm
user-experience
ksh
parcelable
jquery-callback
gmock
roundup
xunit
stackexchange
android-sharedpreferences
rpgle
gp
nsurl
playstation-portable
jett
login-script
twos-complement
instantiation
nested-lists
html-encode
mnist
raft
azure-arm
importerror
signal-strength
optimizely
vaadin-elements
lampp
magento-2.0.7
zenhub
qtranslate
subnet
android-testing
flyout
django-1.10
juice-ui
gets
chromium-os
x-tag
dup
http-status-code-401
project-organization
ikiwiki
pushbots
cycle2
toast
design-principles
phpgrid
concept-insights
boomerang
sciruby
microsoft-reporting
dulwich
jsvc
apache-commons-daemon
java-security
nodelist
at-job
execve
android-cookiemanager
live555
malformedurlexception
android-framework
maven-scm
ecslidingviewcontroller
windows-embedded-standard
visual-studio-express
eclipse-kepler
diem
windows-98
stacky
cascadingdropdown
bjyauthorize
sqlclr
midlet
boost-msm
rmiregistry
garbage
boost-signals
predicatebuilder
urlrewriter
flex-mobile
rowlex
web-garden
spread
lxr
tui
cuda.net
asynchronous-wcf-call
fault-tolerance

Resources

Mobile Apps Dev
Database Users
javascript
java
csharp
php
android
MS Developer
developer works
python
ios
c
html
jquery
RDBMS discuss
Cloud Virtualization
Database Dev&Adm
javascript
java
csharp
php
python
android
jquery
ruby
ios
html
Mobile App
Mobile App
Mobile App