Introduction
A few weeks ago I saw a MSN messenger popup class on Codeproject written by Prateek
Kaul. Since I needed a taskbar popup with skin support, I decided to write my own new class.
This is my first submission to Codeproject, since I think my code begins to be mature enough to be posted.
Compatibility
This class needs MFC to be either statically or dynamically linked in your project; it has been written, compiled and tested under Visual Studio .Net (but should work with VC6)
How to use the Class
The class is very easy to use: Just add TaskbarNotifier.h and TaskbarNotifier.cpp into your project, then include
TaskbarNotifier.h into your application, add a CTaskbarNotifier member variable in the header file of your Dialog or Window class.
In the OnInitDialog or OnCreate member functions add the following lines:
m_wndTaskbarNotifier.Create(this);
m_wndTaskbarNotifier.SetSkin(IDB_MY_BITMAP_RESOURCE);
m_wndTaskbarNotifier.SetTextFont("Arial",90,TN_TEXT_NORMAL,TN_TEXT_UNDERLINE);
m_wndTaskbarNotifier.SetTextColor(RGB(0,0,0),RGB(0,0,200));
m_wndTaskbarNotifier.SetTextRect(CRect(10,40,m_wndTaskbarNotifier1.m_nSkinWidth-10,
m_wndTaskbarNotifier1.m_nSkinHeight-25));
Then when you want to show the popup animation just call anywhere m_wndTaskNotifier.Show("Text to display"); this will show
the animation of the window appearing and then disappearing. You can call again the Show() method whenever you want. If the popup was still here, the text is just replaced, if it was disappearing, it maximizes again.
Be sure not to allocate the CTaskbarNotifier each time you want to show a message, because the skinning function takes a little CPU time to generate the region used to make a non rectangular window.
Class Documentation
int Create(CWnd *pWndParent);
Creates the popup window which remains hidden until Show() is called
BOOL SetSkin(UINT nBitmapID,short red=-1,short green=-1,short blue=-1);
BOOL SetSkin(LPCTSTR szFileName,short red=-1,short green=-1,short blue=-1);
Those two functions assign a skin to the popup, they take as parameter either a Bitmap resource ID or the path of a bitmap file.
The optional parameters are the RGB values for the transparency color for the bitmap. Use these parameters only if you want a non rectangular window; if these parameters are left blank no Region is created.
void SetTextFont(LPCTSTR szFont,int nSize,int nNormalStyle,int nSelectedStyle);
This function permits to specify the Font used for displaying the text (two styles are possible, one for the normal state and one when the mouse is over the window)
nNormalStyle or nSelectedStyle can be one or a combination of these parameters
- TN_TEXT_NORMAL
- TN_TEXT_BOLD
- TN_TEXT_ITALIC
- TN_TEXT_UNDERLINE
void SetTextColor(COLORREF crNormalTextColor,COLORREF crSelectedTextColor);
This function sets the color of the text when in normal or selected state.
void SetTextRect(RECT rcText);
This function allows to define a rectangle within the bitmap which will be the clipping zone for displaying the text.
void Show(LPCTSTR szCaption,DWORD dwTimeToShow=800,DWORD dwTimeToStay=3000,
DWORD dwTimeToHide=500,int nIncrement=1);
Dispays the popup window animation:
szCaption: Text to display
dwTimeToShow: Duration in milliseconds for the popup to be fully visible
dwTimeToStay: Duration in milliseconds for the popup to be stay visible
dwTimeToHide: Time in millisecond for the popup to completely disappear
nIncrement: Pixel increment for moving the window during the animation (the higher, the faster)
Show can be called even if the popup is already visible, being hiding or showing.
void Hide();
Manually Hides the popup.
Additional notes:
When the user clicks on the popup, a message is being sent to its parent window
(WM_TASKBARNOTIFIERCLICKED defined in TaskbarNotifier.h), you can intercept it by adding in your Message Map macro:
ON_MESSAGE(WM_TASKBARNOTIFIERCLICKED,OnTaskbarNotifierClicked)
The fact I'm not releasing the HRGN handle is because when you call SetWindowRgn() function, the GDI takes care of the object deletion.
Conclusion
Thanks to Prateek Kaul whose code inspired me to write this class
and to Vander Nunes for his article about skinning a window.
I hope this class will be useful to you, if you find any memory or GDI leaks, please let me know. If you have suggestions to enhance this class
functionalities, please post a comment.
| You must Sign In to use this message board. |
|
|
 |
|
|
Hi there,
i tested my app on Windows 7 and it looks like the taskbar-Dialog
does not show up if i use this class. Worked fine for Windows XP so far 
Can someone confirm that or post any comment relating this problem?
|
| Sign In·View Thread·PermaLink | 2.00/5 |
|
|
|
|
|
|
Hello,
I find this class is very great but i need to use it in a thread. I saw in the comments the version xmessenger.zip but all the links are dead. Does anyone has it ?
If yes please send me the archive to tipiak07@yahoo.com. I will try to provide a link to share it for people who will need it in future reads of this article.
Best regards.
|
| Sign In·View Thread·PermaLink | |
|
|
|
|
|
|
Thanks for the great article  .
How can multiple text regions can be defined on this dialog? Actually I need to have different Text formatting.
|
| Sign In·View Thread·PermaLink | 1.00/5 |
|
|
|
|
|
|
It's a good stuff.
But, I found it makes a problem when it is used with "shockwave active x".
First, I made a dialog that contains "shockwave active x".
Second, launched this taskbar notification window up within the dialog.
Third, a focus changed to the poped window.
Finally, I have just clicked a keyboard when the focus went to the poped window.
Then, the dialog was stopped and I should end up the dialog using the Task Manager.
Does anyone solve this kind of problem? Then, please let me know.
|
| Sign In·View Thread·PermaLink | 2.00/5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hi,
I was wondering i was possible to animate some gif file instead of Bitmap !
I was great !
Nice job
|
| Sign In·View Thread·PermaLink | 1.50/5 |
|
|
|
|
|
|
if I want to display a longer text (longer than the input line) the text isnt fully painted, because the Control doesnt resize.
Greetings from Germany
|
| Sign In·View Thread·PermaLink | |
|
|
|
|
|
|
I have some problems in insertion your code in my project in VC6.0. I wrong in insert. Can you send me sample code complete.
Thanks
|
| Sign In·View Thread·PermaLink | 2.33/5 |
|
|
|
|
|
|
first, it's a nice job. I add class CTaskbarNotifier to my application, and my application can show popup message box. but i find a problem that my main window minimize to task bar, then popup message box hide too. i reference some articles about how let popup window at top of active window by set HWND_TOPMOST, then popup window at top. but another problem came, this popup window hide task bar when it come from right bottom of screen. can you have other method to resolve this problem??
|
| Sign In·View Thread·PermaLink | 1.20/5 |
|
|
|
|
|
|
modify Show() function, replace SW_SHOW by SW_SHOWNOACTIVATE
switch (m_nAnimStatus)
{
case IDT_HIDDEN:
ShowWindow(SW_SHOWNOACTIVATE);
|
| Sign In·View Thread·PermaLink | |
|
|
|
|
|
|
Here is my solution, replace SetWindowPos with following function
BOOL CTaskbarNotifier::SetPosition(int x, int y, int cx, int cy)
{
const CWnd * pWndInsertAfter = NULL;
pWndInsertAfter = FindWindow("Shell_TrayWnd",NULL);
if (!pWndInsertAfter)
{
pWndInsertAfter = &wndTopMost;
}
return SetWindowPos(pWndInsertAfter,m_nCurrentPosX,m_nCurrentPosY,m_nSkinWidth,m_nSkinHeight,/*SWP_NOOWNERZORDER | SWP_NOZORDER | */SWP_NOACTIVATE);
}
When task bar exists, popup window will show above every window except the task bar.
by Song
|
| Sign In·View Thread·PermaLink | |
|
|
|
|
|
|
|
|
|
Hi
Is it possible to add buttons/option in this notifier bitmaps as does the google talk i.e. its notifier contains the option of accept and reject the call.
ohouiojojkojipj
|
| Sign In·View Thread·PermaLink | 2.43/5 |
|
|
|
|
|
|
Thanks for the wonderful article.
I have an requirement to popup the custom messages while user trying to stop my window service.. like user cannot stop the service when its in use..
is this possible..
Think biG
|
| Sign In·View Thread·PermaLink | 2.00/5 |
|
|
|
|
|
|
|
|
|
I placed TaskbarNotifier.cpp and TaskbarNotifier.h in my visual studio 2003 project. After compiling the solution, I noticed that over 104 errors were shown in the Task List. One of them said, "error C2504: 'CWnd': base class undefined. ...TaskbarNotifier.h 15" Later, I included afxwin.h and recompiled the solution, but a message appeared and said that the windows.h already include it. How do I run and compile the solution successfully? Suppose that I have a simple window cpp file, TaskbarNotifier header file, TaskbarNotifier cpp file, how do I compile smoothly?
-- modified at 18:55 Friday 25th August, 2006
|
| Sign In·View Thread·PermaLink | 2.80/5 |
|
|
|
|
|
|
Did anyone ever figure out how to fix this error? I'm getting it now while trying to drop a Progress Window into a Visual Studio 2005 project. It compiles fine in its own solution, but dropping the source files into my other project breaks it. Copying lines out of the working project's stdafx.h file into mine produces other errors, such as "windows.h is already included."
Any ideas?
|
| Sign In·View Thread·PermaLink | 2.00/5 |
|
|
|
|
|
|
First thanks for your code.But there is an error! My application is a auto song player. When my App is minimized, the taskbar show every new song beginning, there is no problem. But if taskbar show at beginning, and user make some key input in other App, the error occured. My App is died.
Du gao eMail:dugao123@126.com
|
| Sign In·View Thread·PermaLink | 2.00/5 |
|
|
|
|
|
|
 Hello,
first, i would like to appreciate your cool job.
now,i'm trying to make the notification dialog flickering just after
it appears. but as a beginner, i don't know where should i start.
first, i tried to use FlashWindow() with a timer. but it didn't work.
i guess the reason is that it uses a bmp skin.
please give me a little advice or hint.
any comments would be appreciated.
Thanks.
Park.
why i have no sig
-- modified at 10:58 Thursday 10th August, 2006
|
| Sign In·View Thread·PermaLink | |
|
|
|
|
|
|
Thanks for ur excellent work!
But when i use the CTaskbarNotifier with my App,it can not be restored when click the app in the task bar.And i found the demo project
and XMessenger demo project encounter the same problem.Has anyone solve it yet ?
|
| Sign In·View Thread·PermaLink | 2.00/5 |
|
|
|
|
 | Error 
TheChode | 10:17 6 Nov '05 |
|
|
getting an error when i tried to use the code in my App ?
An unhandled exception of type 'System.NullReferenceException' occurred in Lemo.exe
Additional information: Object reference not set to an instance of an object.
.CloseButtonClickEnabled = True
.TitleClickEnabled = True
.TextClickEnabled = True
.DrawTextFocusRect = True
.KeepVisibleOnMouseOver = True
.ReShowOnMouseOver = True
|
| Sign In·View Thread·PermaLink | 2.00/5 |
|
|
|
|
|
|
Great article and code.
Have a couple of questions..
Under "Compatibility" section, the following statement appears, "This class needs MFC to be either statically or dynamically linked in your project;..." I have a managed vc++ .net application, I tried using the class but it gives me lots of errors when I include "TaskbarNotifier.h" in my application; this could be because I'm not using MFC, what properties and or settings do I need to set in my project to use MFC? Here are a few of the errors I get..
error C2504: 'CWnd' : base class undefined
error C2143: syntax error : missing ';' before 'public'
warning C4183: 'DECLARE_DYNAMIC': missing return type; assumed to be a member function returning 'int'
error C2061: syntax error : identifier 'CWnd'
error C2143: syntax error : missing ';' before '*'
error C2501: 'CTaskbarNotifier::CWnd' : missing storage-class or type specifiers
error C2501: 'CTaskbarNotifier::m_pWndParent' : missing storage-class or type specifiers
error C2146: syntax error : missing ';' before identifier 'm_myNormalFont'
error C2501: 'CTaskbarNotifier::CFont' : missing storage-class or type specifiers
error C2501: 'CTaskbarNotifier::m_myNormalFont' : missing storage-class or type specifiers
error C2146: syntax error : missing ';' before identifier 'm_mySelectedFont'
error C2501: 'CTaskbarNotifier::CFont' : missing storage-class or type specifiers
Any assistance would be greatly appreciated.
Regards,
Olegario
|
| Sign In·View Thread·PermaLink | 1.00/5 |
|
|
|
|
|
|
|
|
|
