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Hi,
I have an Activex control with VARIANT* parameter type. I want to pass an Array from CSharp how can i pass it.
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Oh sorry I was answering to another message, mistakenly typed this text here.
I applogise.
Saqib
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I am fairly new to .NET and C#, and on a very steep learning curve, so if my terminology is a bit off I apologise.
My perception is that click events on a button contained within a toolbar are processed differently to click events on a button clicked on the form body. In the case of a form body button the control with focus, when the button is clicked, receives messages via it's delegate event methods. However, in the case of a toolbar button being clicked, the control with focus receives no messages as far as I can tell - not even a LostFocus message.
Could someone tell me where this is documented - I don't care that it is different, but I do care about the dearth of information on this sort of issue.
Regards PhilD
BTW thanks to all those who contribute to this site, I hope I can reciprocate in the not too distant future.
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There are many tutorials available to you both on Code Project and elsewhere on the internet.
From the Arab American University portal, [^] you can download these e-books and read at your leisure. The site is a bit slow.
For tips you can download (ASP.net and Winforms) you can visit http://www.syncfusion.com[^]
modified 1-Aug-19 21:02pm.
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Thanks Richard - not sure what your expectations are but I just dl'd a weeks reading in a few minutes from AAU
Rgds PhilD
Oh I also believe that the ControlCollection Find method on a form does not find toolstrip controls, but it does find controls imbedded in other things like TabPages- the searchallchildren argument is of course set to true.
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I've never used a ToolBar object (I usually go through the hassle of making my own toolbars), but, after glancing at MSDN's documentation, it seems it would be pretty easy. The ToolBar has the ButtonClick event, and the ToolBarButtonClickEventArgs object tells you the index of the button clicked (with which to use switch). That seems to me like plenty of information to be able to act on clicking the different buttons.
-Daniel
Typing too fast fro my owngood
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Daniel,
The issue is not the processing of the click event on the button itself, but what events the control with focus experiences when the toolbar button is clicked. With form body buttons the control with focus can detect that it is losing focus etc - I can't recall the exact sequence but it's something like Leave, Validating, Validated, LostFocus - however with toolbar buttons the control with focus seems to experience no events whatsoever, when such a button is clicked.
Rgds PhilD
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Hi.. 
can anyone help me figure out the algorithm for the following problem: 
Consider a = {a , a , a ,...., a } //random values within set a
----------i----0--1---2-----n //these are the sub values
also
b = {b , b , b ,...., b } //random values's within set b
-i----0---1---2------n //these are the sub values
And
S = a + b
-i----i----i //these are the sub values
Find an algorithm O(n), that can return the n largest number(s) using c#..
Thanx soo much in advance..
Elie
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Eliee wrote: Find an algorithm O(n), that can return the n largest number(s) using c#..
Get all Si results, sort array (ascending) and get your n results at the end of array.
Best regards, Alexey.
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This is a school assignment if I ever saw one.
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Yes, it's very simple solution, but this solution is "fast-realizable".
If you find O(n) solution please tell me.  I'm so intrested...
Best regards, Alexey.
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Isn't Radix sort O(n)? 
Looking at what's given I half suspect the data has restrictions that would make a trivial solution possible, but I don't want to do this guy's homework for him.
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Hey man, thanx 4 ur reply.. i wanted 2 ask you though, what u meant was consider a and b as arrays of values, then add them to a new array S containg the values of a and b, and then sorting the array, and then fetching the largest n #'s? But bro, isn't that more costy than O(n)?!?
Waiting 4 ur reply mate..
Thanx Again,
Elie
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Is it possible to implement chat rooms that can use by the asp.net and the window form. Can this chat room use xml web services to connect each other? or got any suggestioon? Thank you thank you
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Well... I have a Control Inherited from Combobox. The purpose is fill the items in the combo with the content of a Table... the problem is when I am filling the combo, even when it is not Visible, he Drops down at the load of the form... if there's only one combo, no problem... but when there are many combos, the load of the form results in an horrible intermitance while filling combo's, someone have any idea???
Ah... when i reassign the SelectedIndex or SelectedItem properties, the combo also Dropps down...
Bye
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I'm trying to make my own screen-capture program. My theory is to take bitmap screenshots as fast as possible, and feed them into an AVI. I've read some articles on taking screenshots, and it looks like it's a tossup between using .Net (with Graphics.CopyFromScreen()) and using API calls (gdi32.dll and user32.dll).
I just finished the former, and it's slow. I can't get it to take bitmaps faster than about three per second (my goal is at most 30 per second).
My question is this:
Before I spend time on altering all my code, will using API calls make it take screenshots any faster? If not, I won't waste my time.
-Daniel
Typing too fast fro my owngood
-- modified at 19:55 Wednesday 24th May, 2006
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Three per second sounds very slow, I'd expect the API to do it faster than that.
Christian Graus - Microsoft MVP - C++
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Alrighty, I'll give it a try. Thanks!
-Daniel
Typing too fast fro my owngood
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It did go a little faster using the API calls (judging by informal indications, somewhere slightly more than 30 per second). Thanks! This site rocks!
-Daniel
Typing too fast fro my owngood
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I am looking for sample code that will allow the reading and writing of bytes to a .wav file. Thanks.
alias bear
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Why don't you use the search function?
There are plenty of articles here!
Regards,
mav
--
Black holes are the places where god divided by 0...
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using System;
using System.Runtime.InteropServices;
using System.IO;
public class Audio
{
[DllImport("winmm.dll")]
public static extern int PlaySound(String lpszName, int hModule, int dwFlags);
public static void Main(String[] args)
{
string filename = Directory.GetCurrentDirectory() +"\\" + "clock.wav";
PlaySound(filename, 0, 0);
}
}
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I'm logging data to a listbox at a fairly rapid rate (10-100x /sec). THe problem is that after a few minutes my apps memory usage resembles a sawtooth wave with lows of 20-40megs and peaks of several hundred megs, each peak is typically larger than the preceding one until they get to about 250megs at which point the peaks size levels off. From saving out the logdata to a textfile, it's ~0.1% of the size of the memory usage peaks. My suspicion of what's happening is that each time I add an element to the listbox the entire Items list is destroyed and recreated. This would give the growth of several megs/second with periodic garbage collects being the large drops.
If I comment out the add line, my memory usage stays in the low double digit megabytes, so I'm fairly certain it's the listbox that's too blame. Is there anyway to do the updates without abusing the GC this badly, or do I need to rethink my logging and display approach?
lb.TopIndex = lb.Items.Add(timestamp + eventText);
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