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Disable mouse click?
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cmurphy
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Joined: 19 Sep 2006
Posts: 41
Location: US
Post Posted: Thu Feb 08, 2007 4:48 pm   Post subject: Disable mouse click? Reply with quote Back to top  
I want to prevent user to click around in any part of my C# windows application (button, menu and so on) while my application saving file. This is a drawing program. This is my boss's project and I'm adding features.

It saving serveral image & rtf files at the time so if user keep click around or try to drawing more anyway, it will crash my application. I've search google and found few refers to API but I'm not familiar with it. I'm not sure how should I proceed this.

I have a small pop-up display progress bar while it's saving. I make it always on top but the problem is my user still can click on my main application and continue do other thing.

Is there a better way? Please advice,
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T
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Joined: 17 May 2001
Posts: 16187
Location: Airstrip One
Post Posted: Thu Feb 08, 2007 4:53 pm   Post subject: Reply with quote Back to top  
http://en.wikipedia.org/wiki/Modal_window perhaps?

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cmurphy
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Joined: 19 Sep 2006
Posts: 41
Location: US
Post Posted: Tue Feb 13, 2007 3:17 pm   Post subject: Reply with quote Back to top  
I did but user still be able to continue whatever they are doing. I just want to somehow prevent them to mouse click on any part of the program. Thanks away.
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Lycander
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Joined: 24 May 2002
Age: 25
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Post Posted: Tue Feb 13, 2007 3:41 pm   Post subject: Reply with quote Back to top  
Hehehe.... hide the main appication window Razz Then unhide it when you're done.

That's the quick and dirty way to do it. The longer and probably more visually appealing way to do it is to create a global variable that's basically a boolean, "allowMouseEvent." When you start the saving routine, set it to false. Then in every mouse event handler you'd have to check the global variable to see if mouse event processing it allowed or not.

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CMTG
Leg Humper
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Joined: 23 Feb 2002
Posts: 4959
Location: On average, Cheltenham.
Post Posted: Tue Feb 13, 2007 4:21 pm   Post subject: Reply with quote Back to top  
Globals? Pah... Wink What's wrong with just disabling the relevant controls while your application is saving? Try System.Windows.Forms.Control.Enabled. (Or maybe even EnableWindow(hwnd, bool); if you're into Win32API.)

The most elegant way is, of course, to do what Toxin suggests and make your progress window a modal dialog rather than always-on-top. Modal dialogs effectively disable their parent windows. Try System.Windows.Forms.Form.ShowDialog. (Or DialogBox() etc...)

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cmurphy
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Joined: 19 Sep 2006
Posts: 41
Location: US
Post Posted: Wed Feb 14, 2007 10:22 am   Post subject: Reply with quote Back to top  
I choose System.Windows.Forms.Control.Enabled. That's all I need to disable control so user can't draw while my application saving file.

Thank you very much, guys. This all great ideas! Smile
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