C / C++ / MFC

31-Mar-06 18:04

Hi Gurus,

I am doing the paint brush application when i resize or minimize the window what i have done get lost

I heared about serialization
can anybody help or suggest how i persist drawed contents on window??

I look forward to your reply

Knock out "T" from CAN'T
You 'CAN' if you think you 'CAN'
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Hamid_RT1-Apr-06 18:37

1-Apr-06 18:37

Hi A_Laxman,
Do you use WM_PAINT?
do you want to save drawing to graphic file

Laxman Auti2-Apr-06 20:14

2-Apr-06 20:14

Hi WhiteSky,

Thanks for your reply

I am doing the app in MFC and as well handling OnPaint method

i just able to see that when i draw the line and when i minimize the application and maximize the line drawn disappers

so what i should do??
or do you have any sample code for same.

Knock out "T" from CAN'T
You 'CAN' if you think you 'CAN'
Cool | :cool:

Hamid_RT2-Apr-06 21:13

2-Apr-06 21:13

Hi A_Laxman,
you wrote(when i minimize the application and maximize the line drawn disappers)well
I write this code and when I min or max or... the draw is fix

...OnPaint()
{
CPaintDC dc(this);
dc.MoveTo(0,0);
dc.LineTo(100,100);
}

Laxman Auti2-Apr-06 22:10

2-Apr-06 22:10

Hi WhiteSky,
What you replied i aggreed but this is in case of static Data (points in this case)

when i have thosands of lines then how it will possible to draw the thousand of lines each WM_PAINT message

Knock out "T" from CAN'T
You 'CAN' if you think you 'CAN'
Cool | :cool:

Hamid_RT2-Apr-06 23:05

2-Apr-06 23:05

Dear A_Laxman,
I suggestion for you(It's possible not good)
you draw all lines and save this shapes in the graphic file
then use this file in the one Button CStatic(Bitmap)
Now if you change window this shapes is fix
with this way you can delete WM_PAINT

Have a nice day

Color

Tran Ngoc Minh31-Mar-06 16:17

Tran Ngoc Minh

31-Mar-06 16:17

Hi,Everyone!
I amm using Win32.I want to change color of text in listbox control.Who know about this prolem,please help me.
Thanks!

Re: Color

Michael Dunn31-Mar-06 18:01

Michael Dunn

31-Mar-06 18:01

Check out WM_CTLCOLORLISTBOX

--Mike--
Visual C++ MVP Cool | :cool:

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Re: Color

Hamid_RT31-Mar-06 18:20

31-Mar-06 18:20

Hi Tran Ngoc Minh,
use WM_CTLCOLORLISTBOX

and

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceui40/html/cerefWM_CTLCOLORLISTBOX.asp[^]

Re: Color

Hamid_RT31-Mar-06 18:35

question about hide a window.

31-Mar-06 18:35

case WM_CTLCOLORLISTBOX:

SetBkColor((HDC)wParam,RGB(0,0,0));
SetTextColor((HDC)wParam,RGB(30,120,0));
return (LRESULT)CreateSolidBrush(GetSysColor(COLOR_WINDOW));
break;

FlyWithYou31-Mar-06 14:55

FlyWithYou

31-Mar-06 14:55

Hi.

If let a window always hide, hook which message?

Thanks.

Wes Aday31-Mar-06 17:14

Wes Aday

31-Mar-06 17:14

Do you mean, How do I hide a window? Sorry but your question does not make sense to me.

Why is common sense not common?

Never argue with an idiot. They will drag you down to their level where they are an expert.

-- modified at 23:15 Friday 31st March, 2006

Saurabh.Garg31-Mar-06 17:19

Saurabh.Garg

31-Mar-06 17:19

try using ShowWindow[^]

-Saurabh

Laxman Auti31-Mar-06 17:32

31-Mar-06 17:32

The WM_SHOWWINDOW message is sent to a window when the window is about to be hidden or shown.

Knock out "T" from CAN'T
You 'CAN' if you think you 'CAN'
Cool | :cool:

FlyWithYou31-Mar-06 19:35

FlyWithYou

31-Mar-06 19:35

Not need hook WM_WINDOWPOSCHANGING (SetWindowPos)?

John M. Drescher31-Mar-06 21:04

John M. Drescher

31-Mar-06 21:04

Not sure why you are asking to hook anything but:

ShowWindow(hwnd, SW_HIDE)

John

FlyWithYou31-Mar-06 23:58

FlyWithYou

31-Mar-06 23:58

Isn't my window, and i don't know what time it show. Smile | :)