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I am trying to detect when the user clicks on the actual tab of a tabcontrol object in order to display a context menu.
I don't want to put the context menu in the associated property of the tabcontrol because it will automatically pop up when the user clicks anywhere on the tabcontrol.
I just want to detect when the user clicks on the actual tab.
Can someone help me out?
Darryl Borden
Principal IT Analyst
darryl.borden@elpaso.com
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Hi All,
If there is an unmanaged code in a application then how does the compiler handle that unmanaged code.Is the unmanaged code directly compiled into native code without first converting into MSIL or is there some mechanism with the compiler to handle such unmanaged code and thus convert it into MSIL.I would like to know how this processing of the unmanaged code is done by the compiler.
Thanks
Abhishek.
Learning is a never ending process of Life.
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I'm presuming that you're talking about C++ code, since there is not unmanaged C# code.
For C++ code, the code that is compiled with /clr is compiled to IL. Code without that is compiled to native. C++ supports having both managed and unmanaged code in the same exe.
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Can somebody tell me exactly what order events are fired when a form displays. I want to do some processing immediately *after* the form has been displayed, and not before which happens if I put the code in the constructor. Which event handler is best to override to do this? I tried VisibleChanged, but that fires when ever the visiblity changes (including when the form closes) and not just the first time.
Thanks
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You could use the Form Load or Activated events. In the case of Activated, you may need to set a boolean variable to prevent taking care of your action twice.
Gaul
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Actually the Load event fires before the form is loaded, but the activated event works just fine.
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Hi,Everyone!!
make string = "31323334" ('31','32' ... is HEX) to string = "1234"???
who can help me?  
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Are you dealing with just numbers, or letters too: 656667="ABC"? If you're dealing with just numbers, you could employ a cute trick and get rid of the first, third, fifth, etc. '3' character (I can't remember if 30=ASCII '0' though).
Marc
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Hi all,
using System.Runtime.InteropServices;
...
[DllImport("ole32.dll")]
public static extern long CLSIDFromProgID(string ProgID, out Guid clsID);
...
Guid clsID;
long ret = CLSIDFromProgID("Excel.Application", out clsID);
if(ret==0)
System.Console.WriteLine("OK.");
else
System.Console.WriteLine("Fail.");
I use above codes for checking Microsoft Excel is installed or not. But it doesn't work at all, even if I already installed Microsoft Excel.
Are there any missing in my codes?
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[DllImport("ole32.dll", CharSet=CharSet.Auto)]
She's so dirty, she threw a boomerang and it wouldn't even come back.
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Hi Stephane,
Thanks for your help.
I changed my codes as you suggest but it still doesn't work. I think I don't set type of parameters accurately.
Do you think my declaration below is correct?
[DllImport("ole32.dll", CharSet=CharSet.Auto)]
public static extern long CLSIDFromProgID(string ProgID, out Guid clsID);
Many thanks.
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The return type is a 32-bit integer, which is int, not long.
Have you tried:
Type Excel = Type.GetTypeFromProgID("Excel.Application");
if (Excel == null)
Console.WriteLine("Fail.");
else
Console.WriteLine("OK.");
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Can you explain what you're trying to do?
If you're trying to drive excel, you'd do that through COM interop, not through P/Invoke. You do that by adding the excel com component to your project (or through tlbimp if you don't have vs).
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How would such an interop assembly behave on a system where excel is not installed? Would it crap out on me while loading the application or would it throw a bunch of exceptions at me when I try to instantiate the COM-objects?
--
Please state the nature of your medical emergency.
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Hmm. I don't know the answer to that.
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I didn't know we'd made those available.
The page you link is correct, you should use the primary interop assemblies rather than rolling your own.
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Eric Gunnerson (msft) wrote:
you should use the primary interop assemblies rather than rolling your own
Any special reason for this?
--
Please state the nature of your medical emergency.
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The big reason is that they're signed.
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Eric Gunnerson (msft) wrote:
The big reason is that they're signed.
Sounds like political red tape typical from any company, am I right?... 
Nick Parker
The goal of Computer Science is to build something that will last at least until we've finished building it. - Unknown
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Nick Parker wrote:
Sounds like political red tape typical from any company, am I right?...
I don't understand your point.
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Eric Gunnerson (msft) wrote:
I don't understand your point.
I was only being facetious. Just trying to lighten things up in the C# forum. No bad feelings?
Nick Parker
The goal of Computer Science is to build something that will last at least until we've finished building it. - Unknown
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How much stuff do you not make available to us??? 
Norm Almond: I seen some GUI's in my life but WTF is this mess
Leppie: I made an app for my sister and she wouldnt use it till it was colorful enough
Norm:good point leppie, from that statement I can only deduce that this GUI must be aimed at children
Leppie:My sister is 25
-Norm on the MailMagic GUI
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This much (holding hands about 3 feet apart)...
Perhaps "released" would have been a better term.
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