Re: Scollable PictureBox - C# Discussion Boards

Le centriste13-Dec-02 6:32

13-Dec-02 6:32

What is the equivalent property in C#. I can't find it in the property list (Visual Studio)

Michel

It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.

- TreeBeard

Re: Multiline edit boxes: WantReturn

leppie13-Dec-02 6:49

leppie

13-Dec-02 6:49

AcceptReturn i think, and to progammatically do a newline add a "\r" , not "\n" to the text.

WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support.

Re: Multiline edit boxes: WantReturn

Le centriste13-Dec-02 8:18

Le centriste

13-Dec-02 8:18

tx

Michel

It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.

- TreeBeard

Scroll Bars

Ollie13-Dec-02 5:36

Ollie

13-Dec-02 5:36

Anyone know how to disable scroll bars on an MDI frame winform?

Re: Scroll Bars

leppie13-Dec-02 6:55

leppie

13-Dec-02 6:55

I did this for the RichTextBox control and it should work for forms.

protected override CreateParams CreateParams 
{
   get
   {
      System.Windows.Forms.CreateParams param = base.CreateParams;
      //we need to prevent to control calling the vscroll or hscroll
      //vscroll
      if ((0x00200000 & param.Style) != 0)
      {
         param.Style -= 0x00200000;
      }
      //hscroll
      if ((0x00100000 & param.Style) != 0)
      {
         param.Style -= 0x00100000;
      }
      return param;
   }
}

Should work on all forms. Hope it helps Smile | :)

WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support.

Re: Scroll Bars

vickycao5-Jan-03 21:45

vickycao

5-Jan-03 21:45

It's not work ! Frown | :(

Scollable PictureBox

Torsch13-Dec-02 5:12

Torsch

13-Dec-02 5:12

Hello,

I want to display a self-painted Graphic (on-time painted in the program with brush, etc.) in a PictureBox.
This Graphic should be zoomable, so the PictureBox must be scrollable.

Is there a chance to tell the pB, that it has to be scrollable?

Sorry for my english, I hope you understand, what I mean...

Thanks for helping.
Greetz
Torsch

Re: Scollable PictureBox

leppie13-Dec-02 7:00

leppie

13-Dec-02 7:00

From MSDN:

Clipping and positioning of the image in the display area is controlled by the SizeMode property which is set to values in the PictureBoxSizeMode enumeration. You can change the size of the display area at run time with the ClientSize property.

I think that is what you want. Smile | :)

WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support.

Re: Scollable PictureBox

Torsch13-Dec-02 9:18

Torsch

13-Dec-02 9:18

Thank you,

I guess, that's what I want Wink | ;)

I'll try it out and give feadback by failing to do this.

Greetz
Torsch

Re: Scollable PictureBox

leppie13-Dec-02 9:36

leppie

13-Dec-02 9:36

You might want to drop the PictureBox in a ScrollableControl if that is what you are looking for.

WebBoxes - Yet another collapsable control, but it relies on a "graphics server" for dynamic pretty rounded corners, cool arrows and unlimited font support.

Is Windows Shutting Down

OBRon13-Dec-02 4:12

OBRon

13-Dec-02 4:12

Is there a way I can check to see if the OS is getting shut down within my application? I have overridden the Closing method to hide my application on the tray; much like what the MSN Messenger does. You hit the X on the system menu and my Closing method sets the e.Cancel to true, sets my WindowState to Minimized and Visibility to false. This all works great; until you attempt a Windows shutdown. My e.Cancel seems to tell the OS that it can't stop. If there is a way for me to determine that the OS is calling my Closing method, then I could leave the e.Cancel alone. Any ideas?

Ron Ward

Re: Is Windows Shutting Down

Richard Deeming13-Dec-02 5:47

Richard Deeming

13-Dec-02 5:47

YeahIGotDotNet posted the code in the VB.NET forum on GotDotNet:
http://www.gotdotnet.com/Community/MessageBoard/Thread.aspx?id=40651&Page=1[^]

It needs a slight modification, since you're overriding the OnClosing method, rather than attaching to the Closing event, and to include the extra cases further down the same discussion:

using System.Diagnostics;
...
protected override void OnClosing(CancelEventArgs e) 
{
    base.OnClosing(e);
    
    StackTrace t = new StackTrace(false);
    
    // NB: If you override, you need frame 6.
    // If you handle the event, you need frame 7.
    StackFrame f = t.GetFrame(6);
    
    switch (f.GetMethod().Name) 
    {
        case "CallWindowProc":
            // System menu, or the close button
        case "DefMDIChildProc":
            // MDI Child System Menu or close button
        case "DefFrameProc":
            // MDI Parent Closing
        case "ShowDialog":
            // Modal Dialog Closing
        case "DispatchMessageW":
        case "DispatchMessageA":
            // Task manager
        case "SendMessage":
            // Call in code
        default:
            //Don't know
            break;
    }
}

I would assume that system shutdown would be the same as the task manager option, but you may want to log the method name just to make sure.

"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

Re: Is Windows Shutting Down

Gaul14-Dec-02 17:10

Gaul

14-Dec-02 17:10

When the user initiates a shutdown, or when the OS is is about to shutdown, Windows sends out the WM_QUERYENDSESSION to all top level applications. Applications should return a non-zero to allow the the shutdown to continue. If any application returns zero, the session is not ended. The system stops sending WM_QUERYENDSESSION messages as soon as one application returns zero.

You could override the WndProc (Window Procedure) for you main form, and watch for the WM_QUERYENDSESSION message.

public enum Msg
{
WM_QUERYENDSESSION = 0x0011,
WM_QUIT = 0x0012,
WM_ENDSESSION = 0x0016,
}

protected override void WndProc(ref Message m)
{
switch(m.Msg)
{
case (int)Msg.WM_QUERYENDSESSION:
// your code to handle the end session or respond to it

break;
default:
base.WndProc(ref m);
break;
}
}

Gaulles
http://www.gaulles.com

Re: Is Windows Shutting Down

OBRon16-Dec-02 4:01

OBRon

16-Dec-02 4:01

Checking for the WM_QUERYENDSESSION and WM_ENDSESSION worked perfectly! Thanks Gaul.

Direct console output to a window

Daniel Bright13-Dec-02 3:19

Daniel Bright

13-Dec-02 3:19

Anyone know where I could find a sample app that will run a console app & display its output in a windows form?

Re: Direct console output to a window

Nick Parker13-Dec-02 3:23

Nick Parker

13-Dec-02 3:23

Daniel Bright wrote:
Anyone know where I could find a sample app that will run a console app & display its output in a windows form?

Do you want the same identical output on both the console and the Win Form?

Nick Parker

Not everything that can be counted counts, and not everything that counts can be counted. - Albert Einstein

Re: Direct console output to a window

Daniel Bright13-Dec-02 9:11

Daniel Bright

13-Dec-02 9:11

I don't want the console to display at all, I just want all output to be directed to a textbox or something.

This [^] article explains exactly how it is done in C++, I was just hoping for a C# version of it that is more simplified.

Re: Direct console output to a window

Richard Deeming13-Dec-02 5:52

Richard Deeming

13-Dec-02 5:52

Use the System.Diagnotics.ProcessStartInfo class, set the UseShellExecute property to false, and the RedirectStandardInput, RedirectStandardError and RedirectStandardOutput properties to true. You can then use the StandardInput, StandardError and StandardOutput properties of the Process object to send input to the program and read the output.

"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

Install Shield Serial Validation

Murat YILDIZ12-Dec-02 22:33

Murat YILDIZ

12-Dec-02 22:33

Hi Eveyone.. I have sample code of install shield express serial key validation dll. I want to convert this c++ code to c# but i don't know where should i start. I need your help.. Thanks...

Here is the code:

// ValidateSN.cpp : Defines the entry point for the DLL application.<br />
//<br />
<br />
#include "stdafx.h"<br />
#include <tchar.h><br />
#include <stdlib.h><br />
#include "ValidateSN.h"<br />
<br />
BOOL APIENTRY DllMain( HANDLE hModule, <br />
                       DWORD  ul_reason_for_call, <br />
                       LPVOID lpReserved<br />
					 )<br />
{<br />
    return TRUE;<br />
}<br />
<br />
LONG WINAPI ValidateSN(HWND hwnd, LPSTR szSrcDir, LPSTR szSupport, LPSTR szSerialNum, LPSTR szDbase)<br />
{<br />
	//Check for proper length<br />
	if (_tcslen( szSerialNum ) != SERIALNUMBER_LENGTH)<br />
	{<br />
		#ifdef _DEBUG //Display Debug information<br />
			MessageBox(GetFocus(), "Serial Key is Invalid!", "Validation Failed", MB_OK);		<br />
		#endif<br />
		return VALIDATION_FAILED;<br />
	}<br />
<br />
	//Copy serial number to temp variable before parsing<br />
	TCHAR szTemp[255];<br />
	_tcscpy(szTemp, szSerialNum);<br />
<br />
<br />
	//Get individual fields of the serial number (tokens separated by '-' chracter)<br />
	LPSTR szField1 = _tcstok( szTemp, TOKEN_SEPERATOR );<br />
    LPSTR szField2 = _tcstok( NULL, TOKEN_SEPERATOR );<br />
    LPSTR szField3 = _tcstok( NULL, TOKEN_SEPERATOR );<br />
<br />
	#ifdef _DEBUG  //Display Debug information<br />
		CHAR szTmp[1024];<br />
		wsprintf(szTmp, "szSerialNum=%s. \nField #1=%s \nField #2=%s \nField #3=%s", szSerialNum, szField1, szField2, szField3);<br />
//MessageBox(GetFocus(), szTmp, "Serial Number Debug Window", MB_OK);<br />
	#endif<br />
<br />
	//Validate three fields in this example<br />
	if (ValidateField1(szField1) != VALIDATION_SUCCESS)<br />
	{<br />
		#ifdef _DEBUG //Display Debug information<br />
	MessageBox(GetFocus(), "Serial Key is Incorrect!", "Validation Failed!", MB_OK);		<br />
		#endif<br />
<br />
		return VALIDATION_FAILED;<br />
	}<br />
	else if (ValidateField2(szField2) != VALIDATION_SUCCESS)<br />
	{<br />
		#ifdef _DEBUG //Display Debug information<br />
	MessageBox(GetFocus(), "Serial Key is Incorrect!", "Validation Failed!", MB_OK);		<br />
		#endif<br />
<br />
	    return VALIDATION_FAILED;<br />
	}<br />
	else if (ValidateField3(szField3) != VALIDATION_SUCCESS)<br />
	{<br />
		#ifdef _DEBUG //Display Debug information<br />
	MessageBox(GetFocus(), "Serial Key is Incorrect!", "Validation Failed!", MB_OK);		<br />
		#endif<br />
<br />
		return VALIDATION_FAILED;<br />
	}<br />
	else<br />
		return VALIDATION_SUCCESS;<br />
}<br />
<br />
LONG ValidateField1(LPSTR szField1)<br />
{<br />
	//First field must be the string 'Field1'<br />
	if (_tcsicmp (szField1, SERIALNUM_FIELD1) == 0)<br />
	{<br />
		return 1;<br />
	}<br />
	else<br />
		return -1;<br />
}<br />
<br />
LONG ValidateField2(LPSTR szField2)<br />
{<br />
<br />
	long lNumToValidate = atoi (szField2);<br />
<br />
	//Second field must be a multiple of 5<br />
	if ((lNumToValidate % 3) == 0)<br />
		return VALIDATION_SUCCESS;<br />
	else <br />
		return VALIDATION_FAILED;<br />
}<br />
<br />
LONG ValidateField3(LPSTR szField3)<br />
{<br />
	//Don't do anything - accept all values in third field<br />
	return VALIDATION_SUCCESS;<br />
<br />
}

Re: Install Shield Serial Validation

Shaun Wilde13-Dec-02 3:49

Shaun Wilde

13-Dec-02 3:49

learn C#

the string object is your friend and the Convert class is your buddy

LPSTR becomes string

all the _t type functions have equivalent methods for string objects

and the atoi can be handled by a Convert.ToInt32(...)

Technically speaking the dictionary would define Visual Basic users as programmers.
But here again, a very generalized, liberal definition is being employed and it's wrong
- just plain wrong - Tom Archer 5/12/02

Re: Install Shield Serial Validation

Murat YILDIZ13-Dec-02 4:12

Murat YILDIZ

13-Dec-02 4:12

Thanks. but my problem is entry point of function. install shield does not found my function written in c#. i have to export function for external use like this

extern "C" _declspec (dllexport) <br />
int validatethis(const char * szSerial)<br />
{<br />
.....<br />
...<br />
}<br />

i dont know how it is make in c#..

Re: Install Shield Serial Validation

Shaun Wilde13-Dec-02 9:05

Shaun Wilde

13-Dec-02 9:05

ah - I see - I assumed that you were just wanting to use the same code in some C# project.

daft question but why are you writing it in C# if it works fine with installshield in the form that you have it?

Anyway what you have to look into is called 'interop', but I don't think you can as I think MS worked on the principle that C# will want to call API but not the other way - a .NET dll is not the same as a normal dll and has different structure and thus LoadLibrary etc will not cope

I think what you might have to do is wrap the C# object in managed C++ (which I think you can export)

Re: Install Shield Serial Validation

Murat YILDIZ13-Dec-02 22:55

Murat YILDIZ

13-Dec-02 22:55

Thank you so much... I think i understand. I want to use c# because i use well c# then c++. I will try to do that.. Thanks again..

how to rightClick any file in windows - > I find my menu item

ashshab12-Dec-02 12:13

ashshab

12-Dec-02 12:13

Hi all,
I wanna do something like what is done by WinZip or WinRar programs.
when i rightClick any file i found My Menu item after copy & paste for example.
anyone know how to do such things in C#
thanks
plextoR

Re: how to rightClick any file in windows - > I find my menu item

Kannan Kalyanaraman12-Dec-02 17:38

Kannan Kalyanaraman

12-Dec-02 17:38

What you are talking about here is a Explorer Context Menu Shell Extension.
There are a series of articles written by Mike on how to do this using VC++. If you would like to do the same in C#, there is lot of work to be done. There is a technology sample that comes along with framework sdk, which would help you go about this thing.
Here are the links that could help

The following is one of the samples, but does not directly what you want, but gives you an understanding of things involved in writing one.

http://www.codeproject.com/csharp/dateparser.asp[^]http://www.codeproject.com/shell/shellextguide1.asp[^]

The sample from framework sdk
\FrameworkSDK\Samples\Technologies\Interop\Applications\ShellCmd

Hope this helps.

Cheers
Kannan

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