C / C++ / MFC

C^hris L^osinger4-Jan-07 2:57

C^hris L^osinger

4-Jan-07 2:57

use

HDC hDesktopDC = GetDC(GetDesktopWindow());

then draw on that DC, instead of your window DC.

image processing toolkits | batch image processing | blogging

Stephen Hewitt4-Jan-07 12:09

Stephen Hewitt

4-Jan-07 12:09

I think this kind of thing will not work efficiently when the Aero desktop is enabled in Vista.

Steve

2249174-Jan-07 3:04

224917

4-Jan-07 3:04

directly trying to draw on desktop window ( GetDesktopWindow() )may not work due to unavailablity of the OnPaint kind of messages for this kind of application (unless some kind of explorer hacking is done !)

a suggested way could be drawing on a transparent window which does not have no caption, menu, frame etc.

Mark Salsbery4-Jan-07 5:30

Mark Salsbery

4-Jan-07 5:30

You can draw on the desktop any time you want! You just need the right DC

HDC hScreenDC = ::GetDC(0);

Sometimes it's fun to just trash the desktop Smile | :)

Maybe I need to get out more...

Stephen Hewitt4-Jan-07 12:11

Stephen Hewitt

4-Jan-07 12:11

Drawing on a transparent window may be a better approach.

Steve

Displaying a ToolTip

ajitatif angajetor4-Jan-07 1:12

ajitatif angajetor

4-Jan-07 1:12

Hi everyone,

I'm trying to add a tooltip to my buttons on a toolbar,but without any luck.I checked it out with spy++ and HWND seems valid,but i can't activate the tool tip.According to documentation stuff,I do not have to write a message handler for my tooltips to be displayed (I use the TTF_SUBCLASS flag),am I wrong,or missing something in the code below?

<br />
RECT rect;<br />
HWND hwndTT;<br />
INITCOMMONCONTROLSEX iccex;<br />
ATLVERIFY((SendMessage(hwndParent,TB_GETITEMRECT,(WPARAM) iButton,(LPARAM) (LPRECT)&rect)) == TRUE); // get button rectangle,working OK.<br />
<br />
iccex.dwICC = ICC_WIN95_CLASSES;<br />
iccex.dwSize = sizeof(INITCOMMONCONTROLSEX);<br />
InitCommonControlsEx(&iccex);<br />
if ((hwndTT = CreateWindowEx(<br />
	WS_EX_TOPMOST,<br />
	TOOLTIPS_CLASS,<br />
	NULL,<br />
	WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP,<br />
	CW_USEDEFAULT,<br />
	CW_USEDEFAULT,<br />
	CW_USEDEFAULT,<br />
	CW_USEDEFAULT,<br />
	hwndParent,<br />
	NULL,<br />
	NULL,<br />
	NULL<br />
	)) == NULL)<br />
	return NULL;<br />
<br />
::SetWindowPos(hwndTT,HWND_TOPMOST,0,0,0,0,SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);<br />
<br />
TOOLINFO ti;<br />
ti.cbSize = sizeof(TOOLINFO);<br />
ti.uFlags = TTF_SUBCLASS;<br />
ti.hwnd = hwndParent;<br />
ti.lpszText = (LPTSTR) lpszText;<br />
<br />
ti.rect.bottom = rect.bottom;<br />
ti.rect.left = rect.left;<br />
ti.rect.top = rect.top;<br />
ti.rect.right = rect.right;<br />
<br />
SendMessage(hwndTT,TTM_SETDELAYTIME,TTDT_INITIAL,0L);<br />
return SendMessage(hwndTT,TTM_ADDTOOL,0,(LPARAM)&ti);<br />

toxcct4-Jan-07 1:20

4-Jan-07 1:20

please when posting a piece of code, to use the <pre> tag instead of the <code> one.
thanks

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prasad_som4-Jan-07 1:34

prasad_som

4-Jan-07 1:34

ajitatif angajetor wrote:
SendMessage(hwndTT,TTM_SETDELAYTIME,TTDT_INITIAL,0L);

You have passed delay time value(LPARAM) as 0. Is it intentional ?
For setting default delay it should be -1.

Prasad
Notifier using ATL | Operator new[],delete[][^]

ajitatif angajetor4-Jan-07 2:27

ajitatif angajetor

4-Jan-07 2:27

prasad_som wrote:
You have passed delay time value(LPARAM) as 0. Is it intentional ?

Yes,to pop the ToolTip up instantly,so I can see the rectangle is exactly as I meant it to be.

prasad_som4-Jan-07 19:41

prasad_som

4-Jan-07 19:41

Code is looking ok to me. Can you show how you have created toolbar ?

Prasad
Notifier using ATL | Operator new[],delete[][^]

ATL Service registration ....

ajitatif angajetor4-Jan-07 20:05

ajitatif angajetor

4-Jan-07 20:05

uh,i had to hack my code much more throughly to see it was all about rectangles.i found out that the toolbar had one of the items resized after i created the tooltip (with the wrong rectangles).

and i added a TB_SETTOOLTIPS message right after the TTM_ADDTOOL.works just fine now,thanks for everything Smile | :)

Sakthiu4-Jan-07 0:46

Sakthiu

4-Jan-07 0:46

Dear All,

I have created one ATL Service program. Inside that i have done thread and socket operations. I registered this service in my syatem WinXP using the below cmd..

sc create "filename.exe" binpath= "c:\filename.exe"

But my problem is that I started my service program. It is showing tha "The service did not respond start request"

When I see TaskManager, I can see my program is running.. How this is happening ..?

Kindly do help

Thanks

Nice things do nice works

Re: ATL Service registration ....

James R. Twine4-Jan-07 3:36

James R. Twine

4-Jan-07 3:36

The application needs to set its service status so that the SCM knows what is going on with it. Look up SetServiceStatus(...) for more information.

Peace!

-=- James
Please rate this message - let me know if I helped or not!<HR>If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
See DeleteFXPFiles

How to restart MFC application from within itself

Vinod Moorkkan4-Jan-07 0:25

Vinod Moorkkan

4-Jan-07 0:25

Hello friends...

I am working with vc++6.Now i wanted to restart my MFC application from within itself.How can i make it possible.
Please help me
Thanks

Re: How to restart MFC application from within itself

prasad_som4-Jan-07 0:36

prasad_som

4-Jan-07 0:36

Can you be more clear ?

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: How to restart MFC application from within itself

jhwurmbach4-Jan-07 0:36

jhwurmbach

4-Jan-07 0:36

Vinod Moorkkan wrote:
Now i wanted to restart my MFC application from within itself.

To start an EXE in another process, you can use system( "filename").
Its prototype should be included with any MFC-Program or you can include <process.h> for it.

Your old aplication then simply terminates.

"We trained hard, but it seemed that every time we were beginning to form up into teams we would be reorganised. I was to learn later in life that we tend to meet any new situation by reorganising: and a wonderful method it can be for creating the illusion of progress, while producing confusion, inefficiency and demoralisation."

-- Caius Petronius, Roman Consul, 66 A.D.

Re: How to restart MFC application from within itself

Hamid_RT4-Jan-07 0:37

Hamid_RT

4-Jan-07 0:37

Can you more explain restart my MFC application from within itself?

WhiteSky

Re: How to restart MFC application from within itself

toxcct4-Jan-07 1:21

Re: How to restart MFC application from within itself

4-Jan-07 1:21

prefer ::ShellExecute() or ::CreateProcess() than system()

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Hamid_RT4-Jan-07 1:42

Hamid_RT

4-Jan-07 1:42

Congratulation new icon its nice Big Grin | :-D

WhiteSky

Re: How to restart MFC application from within itself

toxcct4-Jan-07 6:31

Re: How to restart MFC application from within itself

4-Jan-07 6:31

WhiteSky wrote:
Congratulation new icon its nice

thanks

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2249174-Jan-07 0:43

224917

4-Jan-07 0:43

There is no in build function to do that i believe.

One approach could be starting a new instance of the current application and then exit the current instance (some more inteligence can be given to the application through the command line parameters like to wait till the parent application has cleaned-up the resource and exited properly before initializing the new instance).

[Off topic]

toxcct4-Jan-07 1:22