Re: Erase/Replace line on Button Event?? - C# Discussion Boards

VickyC#7-Sep-05 20:18

7-Sep-05 20:18

Thanks for the tips. I will try your suggestions. I just want to comment that the behavior of C# reminds me applications with embedded languages and the end result is that there is memory leak period.

TreeView Problem

snouto6-Sep-05 14:47

snouto

6-Sep-05 14:47

How are you dudes ?
i need to display link text near the node name in the tree view and how can i manage its event
thanks alot for your help!!!!

Miss With The Best And Die Like The Rest

Dock form to taskbar?

ehollar6-Sep-05 14:43

ehollar

6-Sep-05 14:43

Greetings,

I am writing a toolbar application that I want to dock to the top of the Windows taskbar. I want the form to take up the width of the screen, regardless of resolution. I also want the form to "cut out" the available space for maximized windows. That is, when apps are maximized they stop at the top of my form/toolbar instead of the top of the Windows taskbar (and don't go "underneath" my toolbar).

Any tips on how to accomplish this?

Re: Dock form to taskbar?

Luis Alonso Ramos6-Sep-05 17:00

Luis Alonso Ramos

6-Sep-05 17:00

They are a shell feature called AppBars. Have you tried searching here in CP?

On a quick search, I found this article that looks very good:

http://www.codeproject.com/csharp/csdoesshell3.asp[^]

-- LuisR

Luis Alonso Ramos
Intelectix - Chihuahua, Mexico

Not much here: My CP Blog!

The amount of sleep the average person needs is five more minutes. -- Vikram A Punathambekar, Aug. 11, 2005

Re: Dock form to taskbar?

ehollar7-Sep-05 5:14

ehollar

7-Sep-05 5:14

Terrific, thanks. I had never heard of "appbars" before. I was searching on "Form.DesktopLocation" and "Form.DesktopBounds" and "Form.Size" and "dockable".

A lot of this is knowing the right word to key in...

Re: Dock form to taskbar?

Luis Alonso Ramos7-Sep-05 5:26

Luis Alonso Ramos

7-Sep-05 5:26

Great! I'm glad I could help! Smile | :)

-- LuisR

Luis Alonso Ramos
Intelectix - Chihuahua, Mexico

Not much here: My CP Blog!

The amount of sleep the average person needs is five more minutes. -- Vikram A Punathambekar, Aug. 11, 2005

Erase/Replace line on Button Event??

Anonymous6-Sep-05 13:57

Anonymous

6-Sep-05 13:57

//Here's some code to draw a line in a Rectangle when a Form1_Paint Event
fires w/ "g.DrawLine(....."

**Problem: If I enter new coordinates into the TextBoxes the old line will not disappear, and I just have line after line drawn on Rect....
What's the fix? Thanks....

//Code to fire on Button Event
private void complexA_OK_Click(object sender, System.EventArgs e)
{
Graphics g = this.CreateGraphics();
Pen cmplxAPen = new Pen(Color.Crimson);
//
try
{
double valAReal;
double valAComplex;
valAReal = Convert.ToDouble(this.textComplexAReal.Text);
valAComplex = Convert.ToDouble(this.textComplexAComplex.Text);
DrawComplexNumber(g, valAReal, valAComplex);
}
catch
{
MessageBox.Show("Invalid Complex A Number", "Error!");
}
}

Re: Erase/Replace line on Button Event??

Dave Kreskowiak6-Sep-05 16:14

Dave Kreskowiak

6-Sep-05 16:14

You're getting a Graphics object, presemably from the form, but you never .Clear() the canvas before you paint the new line.

You really should be doing the majority, if not ALL, of your drawing in the form's Paint event. You can see why if you just enter one set of numbers into your app, then drag your window so that nearly the entire window is off the bottom of the screen, then drag it back up. Your form's blank again, isn't it? You have to repaint it whenever Windows throws a WM_PAINT message your way.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

break; instruction

Yoyosch6-Sep-05 13:54

Yoyosch

6-Sep-05 13:54

Suppose we have that part of code:

for(...)
{
  foreach(...)
  {
    if (...)
    {
      while(...)
      {
        <big>-> XXX <-</big>
      }
    }
  }
}

how am I supposed to exit from the place 'XXX' so that I would 'land' outside (after) the most internal ('for') loop?

Re: break; instruction

Reanalyse6-Sep-05 14:09

Reanalyse

6-Sep-05 14:09

One way would be to turn that code into it's own subroutine and use return; to break the process and close the subroutine

Re: break; instruction

Andres Manggini6-Sep-05 15:30

Andres Manggini

6-Sep-05 15:30

Yoyosch wrote:
how am I supposed to exit from the place 'XXX' so that I would 'land' outside (after) the most internal ('for') loop?

Use goto

for(...)
{  
  foreach(...)  
  {    
    if (...)    
    {      
      while(...)      
      {        
        //-> XXX <-
        goto Gotcha;
      }    
    }  
  }
}
Gotcha:
  Console.WriteLine("Gotcha");

Andres Manggini.
Buenos Aires - Argentina.

Re: break; instruction

Yoyosch6-Sep-05 21:15

Yoyosch

6-Sep-05 21:15

this is surely fastest way but is recognazed as extremaly nasty... there is no other way (line using several break;`s ?)

Re: break; instruction

leppie6-Sep-05 23:11

leppie

6-Sep-05 23:11

You would have to rethink the logical program flow then.

^{xacc-ide 0.0.15 now with C#, MSIL, C, XML, ASP.NET, Nemerle, MyXaml and HLSL coloring - Screenshots}

Re: break; instruction

Dan Neely7-Sep-05 2:20

Dan Neely

7-Sep-05 2:20

[code]
bool error = false;
for(...)
{
foreach(...)
{
if (...)
{
while(...)
{
//-> XXX <-
error = true;
break;
}
}
if (error)
break;
}
if (error)
break;
}
[/code]

Print Document

Anonymous6-Sep-05 13:47

Anonymous

6-Sep-05 13:47

Hi, I am using the system.drawing.printing.Printdocument in a small windows application to print labels. I am wondering if there is a way to prevent the printing progress dialog box from displaying once the user has initiated the print function?

Re: Print Document

Luis Alonso Ramos6-Sep-05 13:53

Luis Alonso Ramos

6-Sep-05 13:53

Yes. Put this before your Print call:

myPrintDocument.PrintController = new StanderdPrintController();

I hope this helps! Smile | :)

-- LuisR

Luis Alonso Ramos
Intelectix - Chihuahua, Mexico

Not much here: My CP Blog!

The amount of sleep the average person needs is five more minutes. -- Vikram A Punathambekar, Aug. 11, 2005

Deploy .NET applications as a single EXE that runs without the .NET Framework

surfman196-Sep-05 12:49

surfman19

6-Sep-05 12:49

i have a problem with Thinstall http://thinstall.com/help/?linking_netframework.htm[^]

if get this error if i create new projekt with my .exe file! i work with Automatic .NET EXE detection during new project Wizard....

-> Failed to open C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\1031\cscompui.dll

any idea what can be the problem!?

cu

Re: Deploy .NET applications as a single EXE that runs without the .NET Framework

Christian Graus6-Sep-05 13:02

Christian Graus

6-Sep-05 13:02

surfman19 wrote:
any idea what can be the problem!?

The folder is wrong - it's 1033, at least on my PC it is. The rest of that path works fine on my computer.

Christian Graus - Microsoft MVP - C++

Re: Deploy .NET applications as a single EXE that runs without the .NET Framework

surfman197-Sep-05 9:13

surfman19

7-Sep-05 9:13

hi,
i dont understand...Thinstall always want to have this file...i dont understand that!!???? why?
cu

Re: Deploy .NET applications as a single EXE that runs without the .NET Framework

surfman197-Sep-05 9:19

surfman19

7-Sep-05 9:19

hi i have a .exe file which load a xml file....but the xml file mustn't be loaded into the exe!? the exe dont work with the xml on the computer where no framework is installed;-(
cu

Re: Deploy .NET applications as a single EXE that runs without the .NET Framework

Christian Graus7-Sep-05 12:46

Christian Graus

7-Sep-05 12:46

First of all, any solution for creating an exe without the framework is a hack. Second, this product is obviously crap, because it's looking for a dll it needs in the wrong place. I'd give it up.

Christian Graus - Microsoft MVP - C++

Re: Deploy .NET applications as a single EXE that runs without the .NET Framework

surfman197-Sep-05 13:30

surfman19

7-Sep-05 13:30

hi,
i read: If your .NET program uses new external Assemblies, you can use this option to automatically import any referenced assemblies..... -> no crap: http://thinstall.com/help/?linking_netframework.htm[^]

did you already use thinstall?
cu

Re: Deploy .NET applications as a single EXE that runs without the .NET Framework

Christian Graus7-Sep-05 13:36

Christian Graus

7-Sep-05 13:36

surfman19 wrote:
did you already use thinstall?

No chance in hell. I wouldn't trust any framework like that, like I said, it's a hack.

Christian Graus - Microsoft MVP - C++

Global Hook on IR control

Lapje6-Sep-05 12:34

Lapje

6-Sep-05 12:34

Hi, I used the tutor from microsoft to get messages from my IR Control (link). The code works fine, but when the window loses focus, it doesn't work anymore.
I need this code to work also when the program doesn't have focus (global hook?).

Thanks in advance.

Re: Global Hook on IR control

Dave Kreskowiak6-Sep-05 13:49

Dave Kreskowiak

6-Sep-05 13:49

From the little that I've seen about this, the remote works by using keyboard emulation. About half of the remote's keys are sent to the application using WM_INPUT and WM_KEYDOWN messages. This makes it easy to use, but when the focus changes, the "keystrokes" are now going to another application.

This presents a problem. Since the message from the remote are exactly like normal keyboard messages, there's no way to tell them apart. You COULD put together a low level keyboard hook, but there's no way to tell if the keystrokes you're seeing are coming from the real keyboard or from the remote.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

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