How to hide a windows form from start-up using C# and unhide after pressed shortcut key

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Hi I am creating an windows form application which is having a condition, if the condition is true the form shouldn't be display if not it should display.Now if the form is in hiding position then it should visible after pressed some shortcut key(like Ctrl+s,Alt+s) so please suggest me how would I do that.

Thanks
Prafulla

Posted 24-Sep-12 1:43am

Prafulla Sahu

Updated 24-Sep-12 2:09am

v2

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Andrei Straut 24-Sep-12 7:48am

Pst! Let me give you a tip! This is already documented on MSDN[^].

You didn't Google search[^] for it, did you?

_Amy 24-Sep-12 7:50am

Ah! I could have given you +5 for this tip. :thumbsup:

Andrei Straut 24-Sep-12 7:53am

Keep it reserved, I'll let you know when I need an upvote in the forums :))

_Amy 24-Sep-12 8:03am

Sure. It is kept in CP reserve bank. :)

Prafulla Sahu 24-Sep-12 7:58am

Thanks Andrei and _Amy sorry from my side I should add some more content for completing the behavior of my application.Actually now I am able to hide the application according to my condition but my requirement is when I pressed some shortcut key(like Alt+s,Shift+s) the application should display.

Andrei Straut 24-Sep-12 8:04am

In this case, you can use Global Hooks. It won't matter whether or not your form has focus (which it won't while invisible anyway).

You can check this article[^], which explains the concept and implementation quite nicely

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Yasir Farooq · Answer 1 · 2012-09-24T01:55:00

Solution 2

You can use if conditions on form load if you have not any event behind it then you can only use in form load this.hide(); otherwise you use if condition

C#

if(your conditions)
{
    this.hide();
} 
else
{
    this.show(); //or this.visibility = true;
}

Posted 24-Sep-12 1:55am

Yasir Farooq

Updated 24-Sep-12 1:59am

v2

Comments

Andrei Straut 24-Sep-12 8:07am

Sorry, I posted this to the wrong solution. Deleted and moved here.

I have taken the liberty to properly format your question. I don't know whether or not you had any plans to do it yourself, but I suggest you do it in the future, if you keep posting answers.

It's much better to see a properly phrased and formatted answer (with code tags) for everyone that will later check or view the whole thread.

ridoy · Answer 2 · 2012-09-24T01:53:00

Solution 1

In you form load event..

C#

private void Form1_Load(object sender, EventArgs e)
{
    if (your_condition == false)
        this.Show();
    else
        this.Close();
}

Posted 24-Sep-12 1:53am

ridoy

Updated 24-Sep-12 1:56am

v2

Comments

Prafulla Sahu 24-Sep-12 8:15am

hey ridoy thanks for your reply, but the code you have suggested is not working

ridoy 24-Sep-12 8:18am

it works perfectly for me,need to see what is your condition..because it depends on it's type

Prafulla Sahu 24-Sep-12 8:39am

I am just checking that a particular directory is present or not but I did it in Form1_Paint event but when I pressed my shortcut key the form should get activate but it is not activating.

ridoy 24-Sep-12 8:51am

I'm not sure whether Form1_Paint method is correct to do it..but i think it will work in case of Form1_Load event.So it will be like..

if (Directory.Exists("C:\\Users"))
{
this.Show();
}
else
this.Close();