Transparent background in static text - C / C++ / MFC Discussion Boards

Re: still on CFileDialog

toxcct14-Nov-06 0:03

toxcct

14-Nov-06 0:03

brahmma wrote:
cool cool buddy

seriously... why answering to people when they don't listen to you...

You don't know where to start ? ask a good friend

[VisualCalc 3.0][Flags Beginner's Guide]

Re: still on CFileDialog

Desmo1614-Nov-06 0:02

Desmo16

14-Nov-06 0:02

I'm sorry you're right.
I didn't think it was so easy, I supposed i had to use
fd.m_pOFN->something to do it.
I found that immediately after the post.
Excuse me again.

Re: still on CFileDialog

toxcct14-Nov-06 0:04

toxcct

14-Nov-06 0:04

nevermind, it's ok... but read the docs before asking too easy question Wink | ;)

You don't know where to start ? ask a good friend

[VisualCalc 3.0][Flags Beginner's Guide]

Re: still on CFileDialog

Hamid_RT15-Nov-06 7:05

Hamid_RT

15-Nov-06 7:05

In additional you can use GetSaveFileNameor GetOpenFileName

WhiteSky

[Message Deleted]

Bagaturia david13-Nov-06 23:31

Bagaturia david

13-Nov-06 23:31

[Message Deleted]

Re: Problem with pointer

Nibu babu thomas13-Nov-06 23:50

Nibu babu thomas

13-Nov-06 23:50

Bagaturia david wrote:
char *Get(void)
{
static char a[]="thanks for any help!!!!";
char *p;

p = a;

return p;
}

p is a local variable even though it points to static buffer so it gets destroyed as soon as the function exists. This kind of coding should be avoided.

char *Get(void)
{
  static char szString[] ="thanks for any help!!!!";
  return szString;
}

The same applies for long too.

Nibu thomas
A Developer

Programming tips[^] My site[^]

Re: Problem with pointer [modified]

Viorel.14-Nov-06 0:09

Viorel.

14-Nov-06 0:09

The first case seems to work fine: it displays the entire string in our tests. What do you mean by "I get only one element and not array"?

In the second case the "<<" operator has a special meaning for your pointer: it display the address stored in the pointer, i.e. the address of your array. In order to display the pointed value (actually the first element from the array), try this:

cout << *p;

In order to display all of values, I think you need a loop.

-- modified at 6:14 Tuesday 14th November, 2006

Transparent background in static text

RadPC13-Nov-06 22:24

RadPC

13-Nov-06 22:24

Hi.

I want to do a small MFC application with a green background. I've seen in codeproject one quick way is to change OnEraseBkgnd() to:

BOOL CTestDlg::OnEraseBkgnd(CDC* pDC)
{
// TODO: Add your message handler code here and/or call default
CBrush brTapete(RGB(0,127,0));
pDC=this->GetDC();
CBrush* pBrush = (CBrush*)pDC->SelectObject(&brTapete);
CRect Recto;
pDC->GetClipBox(Recto);
pDC->PatBlt(Recto.left,Recto.top,Recto.Width(),Recto.Height(),PATCOPY);
pDC->SelectObject(pBrush);

return TRUE;
}

It works, but now I have problems when putting controls like static texts on it. Their backgrounds are not the same as the application, so it's quite ugly. I've tried to change the control's property "Transparent" to True, but it doesn't work. I guess it's a problem in OnEraseBkgnd not redrawing the background behind the control, but I don't know what to do.

Someone can give me any orientation?

Thanks!
Rad.

Re: Transparent background in static text

prasad_som13-Nov-06 22:41

prasad_som

13-Nov-06 22:41

You need to handle WM_CTLCOLOR message for static control.
Set background mode as TRANSPERANT there.

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

Re: Transparent background in static text

RadPC13-Nov-06 22:59

RadPC

13-Nov-06 22:59

That was the problem! Now it works perfectly. Thanks, prasad_som!

Rad.

Re: Transparent background in static text

Hamid_RT15-Nov-06 7:05

Hamid_RT

15-Nov-06 7:05

It seems you find your answer but also see another messages WM_CTLCOLOR* for EDIT,STATIC,LISTBOX and...

WhiteSky

How to change file permission/property in VC++?

Poonamol13-Nov-06 22:08

Poonamol

13-Nov-06 22:08

One file is created. I want to set the file attribute as "READ ONLY" from VC++ coding. when file is in read only mode it can not write data. Right click on created file and uncheck the "Read Only" property of file, this file property change information ahould get notified in VC++ code.
After unchecking the file property, it is able to write data into created file.

How to set file permission/property in VC++? and how to get the notification of file property into VC++?

Enjoy Life........

Re: How to change file permission/property in VC++?

prasad_som13-Nov-06 23:01

prasad_som

13-Nov-06 23:01

Poonamol wrote:
One file is created. I want to set the file attribute as "READ ONLY" from VC++ coding

SetFileAttributes[^].

Poonamol wrote:
and how to get the notification of file property into VC++?

Dont know about this, if it is possible .

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

Re: How to change file permission/property in VC++?

Poonamol14-Nov-06 0:57

Poonamol

14-Nov-06 0:57

Hello,

Thanks for instant reply,
But still I am facing problrms while removing read only attribute from file properties, this file is not opened for writting data.
Using GetFileAttribute[^] is it possible to get the notification of file properties whether it is read only / write?

Enjoy Life........

Re: How to change file permission/property in VC++?

prasad_som14-Nov-06 1:04

prasad_som

14-Nov-06 1:04

Poonamol wrote:
But still I am facing problrms while removing read only attribute from file properties

Can you show code ? you are using.
I'm sure this should work,

SetFileAttributes("filename",FILE_ATTRIBUTE_NORMAL);

See this[^] example for more info.

Poonamol wrote:
this file is not opened for writting data.

You need to mention this while opening file.

Poonamol wrote:
Using GetFileAttribute[^] is it possible to get the notification of file properties whether it is read only / write?

You can determine whether this file is readonly by using this API.

BTW, why you are mentining 'notifications" here ? Notification are different from what you had mentioned here.

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

Re: How to change file permission/property in VC++?

Hamid_RT15-Nov-06 6:48

Hamid_RT

15-Nov-06 6:48

Can you show how do you use of SetFileAttribute

WhiteSky

Re: How to change file permission/property in VC++?

VonHagNDaz14-Nov-06 3:13

VonHagNDaz

14-Nov-06 3:13

This may be a naive answer, but you could use CreateFile() and set to read only access, then close the HANDLE to the file, and then reopen the file using CreateFile() and set the attributes to what ever you need them to be.

That might be a lot of opening and closing though.

I win because I have the most fun in life...

Re: How to change file permission/property in VC++?

Poonamol14-Nov-06 16:43

Poonamol

14-Nov-06 16:43

Hi,
I am using following operations on file.
std::ofstream _logss;
const char * _filename = "xxx.out";
ofstream _logss(_filename,ios::out|ios::trunc);
file.open(_filename,ios::in);
Here I can not use CreateFile().

Please do needful.........

Enjoy Life........

Re: How to change file permission/property in VC++?

Poonamol14-Nov-06 16:43

Poonamol

14-Nov-06 16:43

Re: How to change file permission/property in VC++?

Poonamol14-Nov-06 16:45

Poonamol

14-Nov-06 16:45

Hi,
I am using following operations on file.

std::ofstream _logss;
const char * _filename = "xxx.out";
ofstream _logss(_filename,ios::out|ios::trunc);
_logss.open(_filename,ios::out|ios::app);
file.open(_filename,ios::in);

Here I can not use CreateFile().

Please do needful.........

Enjoy Life........

Re: How to change file permission/property in VC++?

Hamid_RT15-Nov-06 6:49

Hamid_RT

15-Nov-06 6:49

<br />
SetFileAttributes("d:\\123.txt",FILE_ATTRIBUTE_READONLY);<br />
//first see what happens for attrib of file then use it<br />
SetFileAttributes("d:\\123.txt",FILE_ATTRIBUTE_NORMAL);<br />

WhiteSky

Re: How to change file permission/property in VC++?

Poonamol15-Nov-06 17:07

Poonamol

15-Nov-06 17:07

Hey,
Here is the code

const char * _filename = "xxxx.out";
std::ofstream _logss;
SetFileAttributes(_filename, FILE_ATTRIBUTE_READONLY);
if(GetFileAttributes(_filename) != FILE_ATTRIBUTE_READONLY)
{
.....
.....
if(_size >MAX_FILE_SIZE )
{
.....
ofstream _logss(_filename,ios::out|ios::trunc);
.....
}
.....
.....
}

Is there any problem in above code?

Enjoy Life........

Re: How to change file permission/property in VC++?

Hamid_RT15-Nov-06 18:36

Hamid_RT

15-Nov-06 18:36

Your code is right,what problems?

WhiteSky

How do VC++ set the Size and 'Topmost' of a console window?

mathewzhao13-Nov-06 22:06

mathewzhao

13-Nov-06 22:06

I looked up MSDN and found the API function'SetConsoleWindowInfo ' ,which can resize,according to MSDN, the size and position of a console window, however,I tried it and found it doesn't work at all.I don't understand why the API doesn't work on my PC(IDE: VC++ 6.0 OS:WinXP SP2) Confused | :confused:

Some books says the API function,SetWindowPos,can changes Z order of a child, pop-up, or top-level window.I want to set the console window as the topmost window,so I use the API function ,but I don't know how to get the handle of a console window,I tried to get a console handle by the sentence, ConsoleHnd = GetStdHandle(STD_OUTPUT_HANDLE);
Unfortunately,I got the following error message:
error: argument of type "HANDLE" is incompatible with parameter of type "HWND".

Could anyone give me some suggestions? Thanks!

Re: How do VC++ set the Size and 'Topmost' of a console window?

Nibu babu thomas13-Nov-06 23:43

Nibu babu thomas

13-Nov-06 23:43

mathewzhao wrote:
I tried to get a console handle by the sentence, ConsoleHnd = GetStdHandle(STD_OUTPUT_HANDLE);
Unfortunately,I got the following error message:
error: argument of type "HANDLE" is incompatible with parameter of type "HWND".

Use GetConsoleWindow.

Nibu thomas
A Developer

Programming tips[^] My site[^]

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