show message box onclick

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HI!

I'm making a program and I want it to show a message box if I click on it but if I start it in some other way i don't want it to show the message box, for example:
If the program starts from autostart then it will start without showing the message box but if i click on the program symbol in explorer it will show the message box. Is this possible?

Thank you in advance!

Posted 10-Jan-11 4:54am

euhiemf

Updated 10-Jan-11 4:55am

v2

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3 solutions

Solution 3

When your program starts, you need to be able, somehow, to tell how it was started.

The best way that I can see to do this would be to change the autostart settings. I am assuming that you used a RegistryKey to set the program to run. If not, then ignore my answer.

Instead of just using the Application.ExecutablePath in the RegistryKey, you would want to provide a commandline parameter, such as Espen suggested.

Then, when your program is started (in the beginning of your apps Main) you check Environment.GetCommandLineArgs() and check to see if your autostart argument was there. If it's there, then show your MessageBox.

Posted 10-Jan-11 7:12am

William Winner

Solution 2

Have you thought of using Visible?

C#

Button2.Visible = false; // to hide button
TextBox1.Visible = false; // to hide textbox
Button2.Visible = true; // to show button
TextBox1.Visible = false; // to show textbox

Just use a workaround based on this.

Posted 10-Jan-11 5:29am

Dalek Dave

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Espen Harlinn · Accepted Answer · 2011-01-10T04:57:00

Solution 1

How about using commandline options:
prog.exe /autostart

Regards
Espen Harlinn

Posted 10-Jan-11 4:57am

Espen Harlinn

Comments

Dylan Morley 10-Jan-11 11:38am

+5, best way to do it imo

William Winner 10-Jan-11 12:58pm

I don't understand how this answers the question...if he types that into a commandline, then it wasn't using autostart...

Dylan Morley 11-Jan-11 7:21am

True, it's not really telling you where it was started from, more the ability to control whether or not to display a UI. Lots of utilities will come with an option to supply a -[q]uiet switch at command line to suppress any interface

Then like you say in your answer, just modify the autostart entry to provide the 'suppress' switch (/autostart /q /whatever!)

Espen Harlinn 11-Jan-11 7:25am

True enough, thanks Dylan!