C / C++ / MFC

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 0:50

Is your application capable of getting into the system tray? Have you completed that part?

Nobody can give you wiser advice than yourself. - Cicero
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...formerly known as brahmma
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Mohammad Khodaea8-Jan-08 1:27

Mohammad Khodaea

8-Jan-08 1:27

Yes, my application is capable to go to the system tray.

Re: Handling the message by minimizing using "Windows key+D"

toxcct8-Jan-08 1:55

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 1:55

is it when you minimize it, or you have to specify it with a button or a menu item like "Go to the Tray Now !" ?

if the later, you have to override the minimize message (WM_MINIMIZE) and make it go to the tray in this event handler...

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Rajesh R Subramanian8-Jan-08 2:00

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 2:00

Register a hot key with RegisterHotKey for WinKey+D. See here[^] for an example. In your message handler for the hot key message, put the logic to send your window to the system tray.

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
...formerly known as brahmma
Codeproject.com: Visual C++ MVP

toxcct8-Jan-08 2:05

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 2:05

no dude, please ! don't send him in this direction !

he doesn't need at all to know that it's Win+D which made his application minimized to the tray.
What he wants is overriding WM_MINIMIZE to put his apps to the tray.

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Rajesh R Subramanian8-Jan-08 2:14

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 2:14

toxcct wrote:
WM_MINIMIZE

Is there a message like that in MFC? Unsure | :~

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
...formerly known as brahmma
Codeproject.com: Visual C++ MVP

toxcct8-Jan-08 2:19

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 2:19

my bad, WM_SIZE or WM_ACTIVATE.
You can also get notified of the minimize command before it is carried out using WM_SYSCOMMAND.

also, the IsIconic() function is there to know if an application is minimized...

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Rajesh R Subramanian8-Jan-08 2:35

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 2:35

toxcct wrote:
WM_SYSCOMMAND.

Overriding the WM_SYSCOMMAND is the best way if one should execute some code before an app is being minimized. But the WinKey+D combination will not send your application this message!

toxcct wrote:
also, the IsIconic() function is there to know if an application is minimized...

The op has a two-staged problem. At first, he must detect WinKey+D. And then, he must minimize it. I suggested him how to detect WinKey+D. He could add a handler which would be executed while this combination is pressed. Now, the second stage is to put the code within this handler, which sends his app into the system tray. Smile | :)

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
...formerly known as brahmma
Codeproject.com: Visual C++ MVP

toxcct8-Jan-08 3:14

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 3:14

Rajesh R Subramanian wrote:
At first, he must detect WinKey+D

i'm absolutely not sure of this.

here is what I'm thinking he has (but as long as he didn't replyed to my question, I can't know for sure).

he implemented a "Go To tray" function in his application. but he certainly throws his Apps to the tray when selecting that action on a Menu or with a button.

but what he wants is sending his apps to the tray whenever the application is minimized.

Win+D is a Windows implementation to show the desktop. it throws a Minimize event to every application in the taskbar.

so the OP doen't have to know that it is a Win+D, but only that the application is told to minimize (then, to the tray)...

get me ?

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David Crow8-Jan-08 3:21

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 3:21

toxcct wrote:
so the OP doen't have to know that it is a Win+D, but only that the application is told to minimize (then, to the tray)...

I agree, although it should probably be WM_SIZE/SIZE_MINIMZED that is being looked for instead.

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

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Rajesh R Subramanian8-Jan-08 3:27

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 3:27

toxcct wrote:
he implemented a "Go To tray" function in his application. but he certainly throws his Apps to the tray when selecting that action on a Menu or with a button.

Yes. I am telling the op that he has to capture Win+D and execute the same code to send his app to the tray in response. Because his app is currently not reacting to Win+D, which is what his problem is. You may want to override OnSysCommand like this to verify it:

void CDialogDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if(nID==SC_MINIMIZE)
		AfxMessageBox(_T("Minimizing!"));
}

Pressing the minimize button will display the message. But if you press Win+D, the control never reaches here, but the app goes minimized.

toxcct wrote:
Win+D is a Windows implementation to show the desktop. it throws a Minimize event to every application in the taskbar.

What exactly do you mean by minimize event? Windows won't throw any such minimize event when Win+D is pressed!

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
...formerly known as brahmma
Codeproject.com: Visual C++ MVP

toxcct8-Jan-08 3:31

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 3:31

Rajesh R Subramanian wrote:
But if you press Win+D, the control never reaches here, but the app goes minimized

so what more does he need ?
he puts his "go to tray" code in the minimizing event handler, no matter if it is a Win+D, a Win+M or any other way to minimize an application !

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Rajesh R Subramanian8-Jan-08 3:37

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 3:37

OMG, tox you are not getting it. His app is not responding to Win+D (see his original msg), for some reason and that's why I asked him to trap separately and react to it. Smile | :)

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
...formerly known as brahmma
Codeproject.com: Visual C++ MVP

David Crow8-Jan-08 3:19

Re: Handling the message by minimizing using "Windows key+D"

8-Jan-08 3:19

Mohammad Khodaea wrote:
I want to send my dialog box to the system-tray...

Are you referring to the taskbar notification area?

David Crow8-Jan-08 5:23

how to show only 10 lines in edit box

8-Jan-08 5:23

Mohammad Khodaea wrote:
Since my dialog has no border (it has no caption) and subsequently it has no minimized property in the dialog properties, I don't know how to handle the message.

This would be trivial for a "normal" dialog box. I added the WS_MINIMIZEBOX style to one of my dialogs, and I could then respond to WM_SIZE and call Shell_NotifyIcon() appropriately. Are you indicating that this has not worked for you (I assume so but just wanted to be sure)?

rajneshmalik7-Jan-08 23:59

rajneshmalik

7-Jan-08 23:59

hi i run a thread to show some line in edit box and in every second thread add one line but i want to show only last added ten lines in edit box,how is this possible
thank you

Rajesh R Subramanian8-Jan-08 0:44

8-Jan-08 0:44

If I understand it right, your question boils down to: "How can I update the contents in an edit box?" And the answer is, with the help of a member variable.

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
...formerly known as brahmma
Codeproject.com: Visual C++ MVP

rajneshmalik8-Jan-08 1:15

rajneshmalik

8-Jan-08 1:15

hi rajesh
you r absolutely right.can u tell me with the help of some code

Rajesh R Subramanian8-Jan-08 1:23

8-Jan-08 1:23

There is no serious coding. Add a member variable to your edit control and name it as m_str. Now, you can alter the value of this variable like: m_str = _T("some new value"); and then call UpdateData(false); to reflect it on the screen.

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
...formerly known as brahmma
Codeproject.com: Visual C++ MVP

Re: how to show only 10 lines in edit box [modified]

rajneshmalik8-Jan-08 1:52

rajneshmalik

8-Jan-08 1:52

i think u r not understanding my problem.i am able to show string in the edit box.but my actual problem is that in every one second i am adding on line.and only want to show 10 lines means i want to erase the one oldest line when the one new line is inserted

Rajesh R Subramanian8-Jan-08 3:34

8-Jan-08 3:34

rajneshmalik wrote:
and only want to show 10 lines means i want to erase the one oldest line when the one new line is inserted

Use a CStringList to accomplish the same.

Look at CStringList::RemoveHead() function. Your task would become easy with it.

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
...formerly known as brahmma
Codeproject.com: Visual C++ MVP

modified on Tuesday, January 08, 2008 9:44:03 AM

David Crow8-Jan-08 3:24

check box in the menu pane

8-Jan-08 3:24

How about keeping the 10 lines in a CStringArray (or similar) object instead? Then the edit control can be updated from this object. Does this sound plausible?

Chandrasekharan P7-Jan-08 23:56

Chandrasekharan P

7-Jan-08 23:56

can i have a check box in the menu pane? if yes then how do i do it?

Re: check box in the menu pane

toxcct8-Jan-08 0:01