.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

WPF calling Win32

Posted By:      Posted Date: September 29, 2010    Points: 0   Category :WPF

I am trying to send parameters to a C++ api and came across one problem.

One of the Parameters passes: this->GetSafeHwnd() normally in win32.

I understand I can use 

HwndSource source = (PresentationSource.FromVisual(this) as HwndSource);

However this is a WPF handle that I would be sending to a win32 so really I need to use "HwndHost" as a parameter.

How can I go about passing this value. Can I get the presentation window as a HwndHost?

View Complete Post

More Related Resource Links

Calling webservice from the server


I have a sample web service and aspx file. I deployed them to an existing website that contains classic asp files.

web-service: --- using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Services; [WebService(Namespace = "http://localhost/MyWebServices/")] public class MembershipRegisWebService : System.Web.Services.WebService { public MembershipRegisWebService () { //Uncomment the following line if using designed components //InitializeComponent(); } [WebMethod] public string HelloWorld() { return "Hello World."; } }

aspx.cs file: --- using System; using System.Collections.Generic; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.Services; public partial class CallWebService : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { MembershipRegisWebService mrWs = new MembershipRegisWebService(); Response.Write("Calling web service:" + mrWs.HelloWorld()); } }

It runs locally, but it shows an error when running it from the server:

Server Error in '/' Application. Compilation Error Description: An error occurred during the compilation of a resource required to service this request. Please review the follow

Advanced Basics: Calling All Operators


This month I found an interesting question in my mailbag. It went something like this: "I am writing some code working with points and other drawing objects in Visual Basic® 2003, and I just want to add an offset to a point, effectively moving the point.

Ken Getz

MSDN Magazine December 2004

C++ Q&A: Finding a Win32 Handle, HTML in CHtmlCtrl


This month Paul DiLascia discusses how to find windows with GetLastChild and outputting HTML with a C++ procedure equivalent to document.write.

Paul DiLascia

MSDN Magazine August 2003

Inside Windows: An In-Depth Look into the Win32 Portable Executable File Format, Part 2


The Win32 Portable Executable File Format (PE) was designed to be a standard executable format for use on all versions of the operating systems on all supported processors. Since its introduction, the PE format has undergone incremental changes, and the introduction of 64-bit Windows has required a few more. Part 1 of this series presented an overview and covered RVAs, the data directory, and the headers. This month in Part 2 the various sections of the executable are explored. The discussion includes the exports section, export forwarding, binding, and delayloading. The debug directory, thread local storage, and the resources sections are also covered.

Matt Pietrek

MSDN Magazine March 2002

Inside Windows: An In-Depth Look into the Win32 Portable Executable File Format


A good understanding of the Portable Executable (PE) file format leads to a good understanding of the operating system. If you know what's in your DLLs and EXEs, you'll be a more knowledgeable programmer. This article, the first of a two-part series, looks at the changes to the PE format that have occurred over the last few years, along with an overview of the format itself. After this update, the author discusses how the PE format fits into applications written for .NET, PE file sections, RVAs, the DataDirectory, and the importing of functions. An appendix includes lists of the relevant image header structures and their descriptions.

Matt Pietrek

MSDN Magazine February 2002

Win32 Resources: Using C++ to Programmatically Retrieve a Global Cursor's Shape and ID


Getting global cursor information is useful when developing software that drives or gathers information about other UI-based applications, including information about a remote machine. This article describes a way to programmatically identify the current cursor's ID and bitmap at any point in time. The first technique described is based on polling for information and shows how to get the handle of the current global cursor. This handle will then allow you to get information about the cursor. You can also monitor WinEvents for changes to the global cursor.

Dmitri Klementiev

MSDN Magazine October 2001

way of calling "javascript function of parent window from child window."

The article way of calling "javascript function of parent window from child window." was added by raja.s on Sunday, June 06, 2010.

Hi,Here i am going to explain how to call the javascript function of a parent window from the child window(pop-Up).Some may know before reading this post.Parent Java Script Function:script language="Javascript" type="text/javascript">

Total newbie question: Calling jQuery in an UpdatePanel?



Please forgive this ignorant question - I've used ASP.NET AJAX a good deal but I'm new to jQuery.  Specifically, is it possible to call or create jQuery events on the fly via an UpdatePanel?  For example, calling a jQuery modal or animating a Label (or <div> contained Literal), etc.

If anyone has any advice or could point me to some easy tutorials on mixing ASP.NET AJAX and jQuery, I'd greatly appreciate it. 



Calling parameterized method from aspx file


Hi all,
I have following method
 public string GetYoutubeVideo (string code)
        return "asasdasfa"

Calling Web Services


Dear Friends,

I m new to web services.I want to create and call the web service on click of button which wold give me city id and cityname.Then I want to bind it to the Dropdownlist1 

How shold i to it




Calling a webservice in MVC using jquery works on dev box not prod box


I have a webservice that is part of the MVC project.  I am using VS 2010 MVC 2.0 on Windows 7.  When I run the web application locally the webservice call works flawlessly, however on the prod box using  2008 upgraded with asp.net 4.0 it fails.

I get an error "The controller for path '/services/traxservices.aspx/upDateCustomer' was not found or does not implement IController. "

Is there some type of issue with the settings in the global.ascx or in IIS that I am missing?


Any help would be appreciated.

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend