Visual Basic

2-Nov-04 14:27

Hi guys,

Now I have to write a program, that call an external app, that must run in a windows form of my program. For example, I call the Calculator or Paint and it will show only on a form of my program (such as frmMain).
By the way, I want to know that how to touch a event of mouse click of system when my app not actived.
I want to ask if anyone can help me. Thank you.

nobita3x2-Nov-04 16:56

2-Nov-04 16:56

Could you help me, I really need

Dave Kreskowiak3-Nov-04 3:17

3-Nov-04 3:17

nobita3x wrote:
that call an external app, that must run in a windows form of my program. For example, I call the Calculator or Paint and it will show only on a form of my program (such as frmMain).

Without going through A LOT of pain, you can't do this. You can't redirect the drawing output of an application to a window in your application. I have seems an example of this being done (can't remember where at the moment), but it required writing a new driver to support it.

nobita3x wrote:
I want to know that how to touch a event of mouse click of system when my app not actived.

What??????????????????? I can't make any sense out of this...

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

MohammadAmiry3-Nov-04 6:27

MohammadAmiry

3-Nov-04 6:27

I say it is possible but the way to do it is not a good programming practice.
You can use the SetParent(ChildWhnd, NewParentHnd) API function to bring the calculator (or any other form) to your program like one of the forms of your application.
It's quite simple.
(If you need more help, let me know and I'll write the code for you some later time, cos now I'm in time shortage)

But for getting mouse and keyboard events when your app is not active, you should set a Global Hook.
It must be in a DLL file, etc.
Handling this is not good for security reasons. also it is rather not easy.
(For more information, search for Global Hook, and find availble dlls on the net)

Hope it'd helped.

nobita3x3-Nov-04 17:18

3-Nov-04 17:18

Thank you for your answer. I have tried to write code use SetParent(ChildWhnd, NewParentHnd) API function, but I failed. Could you help me to write a example code. Thank you very much.

The Final Solution

MohammadAmiry5-Nov-04 21:24

MohammadAmiry

5-Nov-04 21:24

Create an MDIChild Form (called mdiForm1) and set it's border to nothing.
using the GetWindowRect API find the size of the calculator window and resize the form to that size.
Now call the following sub:

<br />
Sub ChangeParent()<br />
  dim hndl as long = FindWindow("SciCalc", "Calculator")<br />
  setparent(hndl, mdiForm1.hwndl)<br />
End Sub <br />

(In fact I don't have access to VB now -in my university- to check wether the code works correctly or not. Please tell me if it works.)

hope it had been helpful.

Mohammad

Re: The Final Solution

nobita3x7-Nov-04 18:21

7-Nov-04 18:21

Thank you very much. But I have a problem. If I build a app with startup is Form1, then that app will showed in the form if I use the SetParent; but if I use Sub Main to startup and call Form1 by method Form1.ShowDialod(), then that app not showed in the form when I call SetParent(). Form1 not is a MDI type. I know that have to use the SetWindowLong() to set app's window style, but I don't know which bit (WS_POPUP, WS_CHILD, etc.) is need to set. Could you tell me? Again, Thank you.

Dave Kreskowiak4-Nov-04 4:13

Re: Printing Escape Sequence

4-Nov-04 4:13

This only works if the target window is an MDIChild window, not an MDIParent or main application window.

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

ComImport Problem....

jrk90210us2-Nov-04 14:07

jrk90210us

2-Nov-04 14:07

hi i m trying to import a class to check internet history on local machine in vb.net. with below code...

<ComImport(), Guid("3C374A40-BAE4-11CF-BF7D-00AA006946EE")> _
Public Class UrlHistory
End Class

but some how its giving me error of System.TypeLoadException.

but when i tried in C# its working fine. without any errors. can any one help me in this matter.
C# code ...

[ComImport]
[Guid("3C374A40-BAE4-11CF-BF7D-00AA006946EE")]
public class UrlHistoryClass
{}

i m new to .Net tech.
Thanks in advance for yr help.

Printing Escape Sequence

cdesouza2-Nov-04 12:01

cdesouza

2-Nov-04 12:01

Hi,
I need to be able to Print an Escape sequence to a printer. When I print the escape from DOS the escape sequence is sent to the printer. But from my VB.net application it doesn't work. Any way to just print without setting fonts or dealing with the printer drivers ?

Thanks

Dave Kreskowiak3-Nov-04 3:13

Transfer string while typing

3-Nov-04 3:13

It's not as easy as you may think, but there's an article on it on MSDN. HOW TO: Send Raw Data to a Printer by Using Visual Basic .NET[^]

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

Brad Fackrell2-Nov-04 9:51

Brad Fackrell

2-Nov-04 9:51

Does anybody know if it is possible to display the contents of a TextBox in one form while typing it into another?

Example:

While typing in frm1, txt1 I would like the text to be displayed in frm2 txt2. Both forms will be open.

Thanks.
Brad

Re: Transfer string while typing

Modern_night2-Nov-04 10:40

Modern_night

2-Nov-04 10:40

the way i know is ..
1- Declare the form you want the text to be viewed on in this form ..

Dim Frm2 as New Form2

then in the "On key press" Action of the textbox you type in .. let the text value of the textbox you want to show the text on .. in the new form ( Frm2 ) = the text value of the textbox that you are typing in ..

Frm2.TextBox1.text=TextBox1.text ..

i hope this works with you ..

لا اله الا الله محمد رسول الله

Re: Transfer string while typing

Brad Fackrell2-Nov-04 11:27

Brad Fackrell

2-Nov-04 11:27

I thought that would/should work also but I haven't had any luck...

I'm going to keep playing around with it and see if I'm just forgetting to do something.

Thanks
Brad

Re: Transfer string while typing

jamesbronw5-Nov-04 6:33

jamesbronw

5-Nov-04 6:33

What i would do is first creat a public variable in a module. Something like
public a as string. then on form1 after they click whatever button needed to get to form to do this.
a=texbox1.text
then on the form2 load procedure do
textbox2.text = a

hope this is what you are talking about and hope it helps if you have any questions about the above code feel free to email me at iamydd@bellsouth.net

Q:Deployment Projects and Custom Actions

Chris Quick2-Nov-04 7:17

Chris Quick

2-Nov-04 7:17

I am working on a deployment project that I would like to perform some specific actions during install.

For example, I would like to project to start the installer for MSDE if MSDE is not currently installed on the users system. I would also like to run some SQL scripts to create the initial database. I've read about using Module files to do this, but there seems to be a void of information on how to do some of these tasks.

Also, I would like to capture the users request to install these items. For example, if they would like to install MSDE on the current workstation, they check a checkbox to install it (but only if it is not currently installed).

I would like to do all of this using the deployment projects that come with Visual Studio. I know there are other installers that can do these things, and possibly much more easily. However, cost is driving the need.

I'm just looking for resources, so if you have some it would be very much appreciated!

Thanks!

Re: Q:Deployment Projects and Custom Actions

Duncan Edwards Jones2-Nov-04 7:30

Duncan Edwards Jones

2-Nov-04 7:30

You can create the install script for the SQL bit with this Database Build Tool[^]

For installing MSDE there is a merge module on the SQL Server install disk (IIRC)

'--8<------------------------
Ex Datis:
Duncan Jones
Merrion Computing Ltd

Getting and recording temperature values

Anonymous2-Nov-04 5:21

Anonymous

2-Nov-04 5:21

Hi. I am kind of a beginner in VB6 and Ihave a little problem. I want to make a programme in VB6 that measures the temperature of a chemical reactor (something like a boiler) and stores those values to an excel file. I am using a PCL841 (h**p://www.advantech.com). Can anyone give me a hand on how to get started?

Re: Getting and recording temperature values

Dave Kreskowiak2-Nov-04 8:15