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MessageBox with a timeout for .NET

, 12 Aug 2004 CPOL 175K 8.8K 70
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Just like MessageBox.Show but with an added timeout parameter

Introduction

Have you ever wanted a message box that times out? Well here you go.

Using the code

  1. Add MessageBoxEx.cs to your project or assembly your project references.
  2. Change MessageBox.Show(...); calls to MessageBoxEx.Show(..., timeout);.
  3. That's it!

Notes

  1. MessageBoxEx has all 12 of the MessageBox.Show overloads.
  2. The timeout is expressed in milliseconds.
  3. MessageBoxEx does not support reentrancy. Good thing too. Why would you want to have more than one message box at the same time?
  4. If the user doesn't press a button before the timeout elapses the function will return the DialogResult of the messagebox dialogs default button.

How does it work?

Just before calling MessageBox.Show(...), SetWindowsHookEx(WH_CALLWNDPROCRET, ...) is called. The hook proc looks for a WM_INITDIALOG on a window with text equal to the message box caption. A windows timer is started on that window with the appropriate timeout. When the timeout fires EndDialog is called with the result set to the dialog default button ID. You can get that ID by sending a dialog box a DM_GETDEFID message. Pretty simple.

References

KB318804: HOW TO: Set a Windows Hook in Visual C#.NET

Acknowledgements

GipsySoft: http://www.gipsysoft.com/messagebox. You'll find a C++ implementation with many more features.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

RodgerB
Software Developer (Senior) Bloomberg
United States United States
No Biography provided

Comments and Discussions

 
GeneralConverted to C++/CLI Pin
Sharjith1-Sep-11 10:07
memberSharjith1-Sep-11 10:07 
GeneralRe: Converted to C++/CLI Pin
RodgerB1-Sep-11 10:28
memberRodgerB1-Sep-11 10:28 
GeneralThank you! Pin
ChrisKane15-May-11 23:19
memberChrisKane15-May-11 23:19 
GeneralMy vote of 5 Pin
matrixology4-May-11 6:06
membermatrixology4-May-11 6:06 
GeneralIts not working with DefaultDesktopOnly/ ServiceNotification option Pin
kirangiri4-Jan-11 8:26
memberkirangiri4-Jan-11 8:26 
GeneralIts not working with DefaultDesktopOnly/ ServiceNotification option Pin
kirangiri4-Jan-11 8:26
memberkirangiri4-Jan-11 8:26 
GeneralMy vote of 5 Pin
Francesco Pasquesi1-Dec-10 4:10
memberFrancesco Pasquesi1-Dec-10 4:10 
GeneralSome enhancements Pin
DanielLey25-Sep-10 7:59
memberDanielLey25-Sep-10 7:59 
GeneralMy vote of 5 Pin
TomChantler22-Sep-10 5:59
memberTomChantler22-Sep-10 5:59 
GeneralThis isn't working in win7, Visual Studio 2008 Pin
Mr C P10-Mar-10 0:10
memberMr C P10-Mar-10 0:10 
GeneralRe: This isn't working in win7, Visual Studio 2008 Pin
Mr C P10-Mar-10 0:15
memberMr C P10-Mar-10 0:15 
GeneralRe: This isn't working in win7, Visual Studio 2008 Pin
TomChantler22-Sep-10 6:00
memberTomChantler22-Sep-10 6:00 
Generalgood article Pin
Donsw17-Jan-09 18:51
memberDonsw17-Jan-09 18:51 
GeneralVery very very good code, but... Pin
seb.4924-Apr-08 6:20
memberseb.4924-Apr-08 6:20 
QuestionDoes this support multi threading calls Pin
Kanna22-Mar-08 6:23
memberKanna22-Mar-08 6:23 
GeneralRe: Does this support multi threading calls Pin
RodgerB31-Mar-08 14:00
memberRodgerB31-Mar-08 14:00 
GeneralPocketPC Pin
richardjjs14-Apr-07 22:56
memberrichardjjs14-Apr-07 22:56 
GeneralRe: PocketPC [modified] Pin
RodgerB15-Apr-07 5:50
memberRodgerB15-Apr-07 5:50 
This will not work on the pocket or compact framework. The implementation uses windows hooks which aren't available on the pocket.

Sorry!

modified on Tuesday, January 19, 2010 6:01 PM

GeneralAmazing Pin
azam's13-Feb-07 19:21
memberazam's13-Feb-07 19:21 
GeneralRe: Amazing Pin
Andreas Hollmann2-May-07 1:24
memberAndreas Hollmann2-May-07 1:24 
QuestionHow to implement in CF Pin
Ajatashatru13-Sep-06 4:19
memberAjatashatru13-Sep-06 4:19 
AnswerRe: How to implement in CF Pin
RodgerB13-Sep-06 4:46
memberRodgerB13-Sep-06 4:46 
GeneralServiceNotification Pin
Ryan McFarren5-Jun-06 11:23
memberRyan McFarren5-Jun-06 11:23 
QuestionMessageBoxTimeOut API function? Pin
eshipman13-Dec-04 4:42
membereshipman13-Dec-04 4:42 
AnswerRe: MessageBoxTimeOut API function? Pin
RodgerB13-Dec-04 6:08
memberRodgerB13-Dec-04 6:08 
GeneralAppDomain.GetCurrentThreadId() is deprecated with Visual Studio 2005 Beta 1 Pin
Anonymous13-Oct-04 13:51
sussAnonymous13-Oct-04 13:51 
GeneralRe: AppDomain.GetCurrentThreadId() is deprecated with Visual Studio 2005 Beta 1 Pin
RodgerB13-Oct-04 17:17
memberRodgerB13-Oct-04 17:17 
GeneralRe: AppDomain.GetCurrentThreadId() is deprecated with Visual Studio 2005 Beta 1 Pin
Anonymous13-Oct-04 18:22
sussAnonymous13-Oct-04 18:22 
GeneralRe: AppDomain.GetCurrentThreadId() is deprecated with Visual Studio 2005 Beta 1 Pin
Tim McCurdy7-Dec-04 2:56
memberTim McCurdy7-Dec-04 2:56 
GeneralRe: AppDomain.GetCurrentThreadId() is deprecated with Visual Studio 2005 Beta 1 Pin
Dan Ganiere30-Aug-05 6:13
memberDan Ganiere30-Aug-05 6:13 
GeneralRe: AppDomain.GetCurrentThreadId() is deprecated with Visual Studio 2005 Beta 1 Pin
J Whattam4-May-06 20:36
memberJ Whattam4-May-06 20:36 
GeneralRe: AppDomain.GetCurrentThreadId() is deprecated with Visual Studio 2005 Beta 1 Pin
Janis Ozo11-Feb-07 0:21
memberJanis Ozo11-Feb-07 0:21 
GeneralRe: AppDomain.GetCurrentThreadId() is deprecated with Visual Studio 2005 Beta 1 Pin
sgissinger24-Mar-11 3:54
membersgissinger24-Mar-11 3:54 
GeneralThanks a lot Pin
aemmons6-Oct-04 10:54
memberaemmons6-Oct-04 10:54 
Generalpicture Pin
Taha Zayed24-Sep-04 16:55
memberTaha Zayed24-Sep-04 16:55 
GeneralRe: picture Pin
RodgerB25-Sep-04 0:51
memberRodgerB25-Sep-04 0:51 
GeneralNamespace Errors when trying to build Pin
LordRhys3-Sep-04 7:49
memberLordRhys3-Sep-04 7:49 
GeneralRe: Namespace Errors when trying to build Pin
RodgerB3-Sep-04 8:00
memberRodgerB3-Sep-04 8:00 
GeneralRe: Namespace Errors when trying to build Pin
LordRhys3-Sep-04 8:38
memberLordRhys3-Sep-04 8:38 
GeneralYou beat me to it. Pin
Ashaman13-Aug-04 3:54
memberAshaman13-Aug-04 3:54 
GeneralRe: You beat me to it. Pin
Manolo Herrera13-Aug-04 6:32
sussManolo Herrera13-Aug-04 6:32 
GeneralRe: You beat me to it. Pin
Daniel Steuernol14-Aug-04 7:25
memberDaniel Steuernol14-Aug-04 7:25 
GeneralRe: You beat me to it. Pin
Manolo Herrera16-Aug-04 5:26
sussManolo Herrera16-Aug-04 5:26 

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