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Hi!
I wanted to make my own custom user interface for my windows application, so I worked with a border-less form (FormBorderStyle = None) to hide the Title Bar, implemented my Interface with Bitmaps, Panels and Pictureboxes etc., and then re-implemented all standard windows-functions so that the user could maximize, minimize, rescale... his window like he was able to do in a normal windows applications.
But then I noticed that, when you work with a border-less form, the System Menu that normally appears when the user right-clicks on the program in the task bar, has disappeared! Is there a way in C# to do make the System Menu appear with a borderless form when a user right-clicks? I thried to search a solution in the Win32 API but didn't found one...
Thank you very much in advance!
Peter Dedene
student KULeuven - Belgium
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When program enters public method MyClass.Flush 'document' has 5 childnodes.
After program opens file.xml variable document has 0 childs - what is wrong  ???
private static XmlDocument document;
....
public void Flush() {
XmlTextWriter writer = new XmlTextWriter("file.xml",System.Text.Encoding.UTF8);
writer.Formatting = Formatting.Indented;
document.WriteTo( writer );
writer.Flush();
writer.Close();
}
Thank you.
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check the previous System.Text.Encoding.UTF8 encoding format.
have u checked preservewhitespace ?
Paresh
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Hi.
I'm working on a software that needs to export data from one application to another.
Both applications are written in C# and change versions frequently, and exported data needs to be (to some degree) compatible.
Another application (written in unmanaged c++ without .net support) might require ways to easily import that data.
Since I'm relatively unexperienced C# developer I do not know how does .net serialization works, could it be easily used or should I develop custom data format?
Data is consisted of various type parts, some of them having large binary chunks. Base64 encoding is not acceptable, since additional size of ~34% is too high, so plain binary format with some type description (for purpose of versioning) is required.
So basicly my question is what data format do I get when I serialize .NET class (and what parts of object info is stored) with [Serializable] attribute, using BinaryFormatter or SoapFormatter, and how do I tweak it - and all that explained in few simple words 
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You will not be able to de-serrialize a managed code object from a non-managed application, as the target objects' structure must be absolutely identical to the serialized objects' structure.
Given your requirements, creating your own data format would be the way to go.
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Not entirely true: the serializer's binder can be overridden to enable reading other versions of the data...
VictorV
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Hi,
I'm trying to have to windows inside another ( tree view in the left side , and my own form in the right side), I've tried this code ( only to add my own window there... )
Form1 MainForm = new Form1();
HijaDrcha RightWindow = new HijaDrcha();
MainForm.Controls.Add(RightWindow);
Application.Run(MainForm);
This compiles fine, but when I try to run this, it gives me one exception  , any clues about how can this work ? ( or did I miss some parameter in the form or ... ?).
Thanks in advance,
Braulio
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Whats the exception? You might try using a splitter window as well.
R.Bischoff | C++
.NET, Kommst du mit?
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Hi,
If I use an Splitter, the exception that I get is:
"Cannot Add a top level control to a control"
Is there some style that I can switch off ? ( how ?), or Window Forms are top level controls ?
Thanks in advance, greetings
Braulio
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I don't think you can add a form to another form unless it's an MDI container (and I don't think that's what you're trying to do). The "inner" form should probably be a control rather than a form.
Paul
And you run and you run to catch up with the sun, but it's sinking
Racing around to come up behind you again
The sun is the same in a relative way, but you're older
Shorter of breath, one day closer to death - Pink Floyd, Time
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Can I model a control as a form ? In MFC it worked like, "I have two views ( edit the aspect with the resource editor), then use CSplitterWnd and add both views).
Sorry, but I'm new to this Windows Forms World...
Thanks
Braulio
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Braulio Díez wrote:
Can I model a control as a form ?
Yeah, sort of. You can create a custom control and drop a number of other controls into it, then treat it just like a window. Then you can dock it into your main window. (dock one control to the left, then dock a splitter to the left, then dock another control to full; that creates a split window as you are looking for)
A window, in effect, is considered to be a top-level control. It contains a Controls collection, as does any other kind of control.
Paul
And you run and you run to catch up with the sun, but it's sinking
Racing around to come up behind you again
The sun is the same in a relative way, but you're older
Shorter of breath, one day closer to death - Pink Floyd, Time
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Hi,
If I use one Splitter, the error message that I get is:
"Cannot Add a top level control to a control"
Thanks
Braulio
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yes this is true. since both are windows. make the innter one as either panel or any other control rather than windows form.
then i think u r all set
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On the form you are adding (RightWindow) set the TopLevel property to false..you may also want to change the FormBorderStyle to something more appropriate.
HTH,
James
"It is self repeating, of unknown pattern"
Data - Star Trek: The Next Generation
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How can i get the handle of an application like Internet Explorer? Is there a function like FindWindow() in c++?
thanks
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Not sure, but can't you just use Interop and call the WinApi FindWindow() function ?
R.Bischoff | C++
.NET, Kommst du mit?
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<br />
Process[] processes = Process.GetProcesses();<br />
for(int x=0;x < processes.Length-1;x++)<br />
{<br />
try<br />
{<br />
string name = processes[x].MainModule.FileName; <br />
if(name.EndsWith("iexplore.exe"))<br />
{<br />
Process instance = processes[x];<br />
instance.Handle
}<br />
catch(System.NullReferenceException e)<br />
{<br />
}<br />
}<br />
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C#
Is it possible to declare const array of strings?
Or is there some other way to enumerate or group const strings?
(i.e.)
const string[] strData = { FIRST="John", LAST="Mark" };
so I can acces it by (like enumeration):
strData[FIRST];
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You can try this way:
private struct myStruct{
public static string FIRST = "John";
public static string LAST = "Mark";
}
[STAThread]
static void Main(string[] args)
{
Console.WriteLine(myStruct.FIRST);
Console.WriteLine(myStruct.LAST);
Console.ReadLine();
}
Cheers,
Simon
"The day I swan around in expensive suits is the day I hope someone puts a bullet in my head.", Chris Carter.
animation mechanics in SVG
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I've tried something like that before but didn't work because I've declared a variable of that type. But accesing the members directy seams to work fine. It also works with const instead of static.
Thank you Simon.
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Hi ,
i have a usercontrol with some childcontrols on , one of the childcontrols have focus (can be any of the child controls)
the problem is that when i click a control outside the usercontrol , the usercontrol does not get notified that it has lost focus , it is the currently active child control that gets the "wm_killfocus" ,, is there ANY way to make the containing usercontrol to get notified of such events in the childcontrols , w/o having to attatch a zillion of eventhandlers to them?
any idea's?
//Roger
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...is there ANY way to make the containing usercontrol to get notified of such events in the childcontrols , w/o having to attatch a zillion of eventhandlers to them?
Not that I can think of off-hand. I am familiar with your situation, and have solved it by overriding event handlers. I do not think it would be all that bad, since you only have to deal with one event handler per child control.
If you are not already, the best way to intercept messages in a custom control is to override the existing protected event handler, rather than the usual registering of a handler. For example:
internal class MyChildCtrl : TextBox { //wrap a textbox for use as a child ctrl,
//and use just like the unwrapped version.
//...
protected override void OnLostFocus(EventArgs e) {
Debug.WriteLine("LostFocus in "+this.Name);
this.Parent.ChildCtrlLostFocus(this, e); //call a method you put in the parent ctrl,
//which in turn can raise the parent's
//LostFocus event if you like.
base.OnLostFocus(e); //always call the base class' event handler
}
}
Overriden handlers are much more efficient than registered handlers created in the Form Designer, partly because they are direct and do not have to be mapped. I know it's annoying to write handlers, but one such as this can be pasted into every wrapped child ctrl in your UserControl (they're all the same). On the plus side, you do not have to += an event handler for each ctrl, since you're overriding directly.
Sorry I couldn't provide a simpler solution, but Windows only notifies the particular ctrl that loses focus, and the one that gains it, not any of the parents. I do not think .Net provides a standard way of bubbling a focus event up to a parent.
Cheers
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Does anyone know of a "clean" way to detect if a user is online? Code examples are appreciated.
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