Re: how to give gray color - C / C++ / MFC Discussion Boards

Re: Focus rectangle on CDialogBox button

David Crow1-Dec-08 10:22

1-Dec-08 10:22

J. Landsheer wrote:
Now the focus rectangle doesn't show until I press the ALT or TAB-key for example...How can I change this behaviour?

Does it have anything to do with what control is first in the Z-order?

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Focus rectangle on CDialogBox button

J. Landsheer2-Dec-08 3:32

J. Landsheer

2-Dec-08 3:32

No, I tried that.

Re: Focus rectangle on CDialogBox button

J. Landsheer9-Dec-08 2:34

J. Landsheer

9-Dec-08 2:34

To answer myself (and maybe some others who have a similar problem):

It's a Win2000/WinXP-feature that when a dialogbox is invoked by the mouse (for example by clicking a menu item in the parent window) all accelerator cues and focus rectangles in the dialogbox are disabled (until you touch the ALT- or TAB-key).
However: when you invoke the dialogbox by the keyboard (for example by touching ALT+I on a menu item 'Invoke Dialogbox'), accelerator cues and focus rectangles in the dialogbox are enabled!!!

You can control this i.m.h.o. useless feature from the Desktop Control Panel, under Appearance, Effects, "Hide underlined letters for keyboard navigation until I press the Alt key".

Another way to do it, is to handle the WM_UPDATEUISTATUS message yourself:
make a MESSAGE_MAP-entry 'ON_WM_UPDATEUISTATE()' and let the 'OnUpdateUIState(UINT p1, UINT p2)' do nothing.

If Class-Wizard doesn't support the WM_UPDATEUISTATE-message, you have to define it yourself:

#define WM_UPDATEUISTATE 0x0128<br />
<br />
#define ON_WM_UPDATEUISTATE() \<br />
	{ WM_UPDATEUISTATE, 0, 0, 0, AfxSig_vww, \<br />
		(AFX_PMSG)(AFX_PMSGW) \<br />
		(static_cast< void (AFX_MSG_CALL CWnd::*)(UINT, UINT) > (OnUpdateUIState)) },<br />

how to give gray color

Member 46556851-Dec-08 2:13

Member 4655685

1-Dec-08 2:13

Hi i have one object name in one view
how to give gray color to the name of the object

Re: how to give gray color

CPallini1-Dec-08 2:23

CPallini

1-Dec-08 2:23

Member 4655685 wrote:
how to give gray color to the name of the object

What are you trying to give color to?
Confused | :confused:

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: how to give gray color

Member 46556851-Dec-08 3:12

Member 4655685

1-Dec-08 3:12

there is a object name i want to give Gray color

Re: how to give gray color

CPallini1-Dec-08 3:20

CPallini

1-Dec-08 3:20

How it is shown the 'object name'? Is it a label (i.e. the caption of a control)? is it a text written using (for instance) TextOut inside the WM_PAINT message handler?...
Please be precise.
Smile | :)

Re: how to give gray color

SandipG 1-Dec-08 3:20

SandipG

1-Dec-08 3:20

May be you are looking for WM_CTLCOLOR[^]

Regards,
Sandip.

Re: how to give gray color

Alan Balkany1-Dec-08 4:04

Alan Balkany

1-Dec-08 4:04

A color with the same values for red, green, and blue will be a shade of gray. For example RGB (180, 180, 180) is a light gray, and RGB (100, 100, 100) is a darker gray. Set the text color to a shade of gray before drawing your object's name.

Re: how to give gray color

Hamid_RT1-Dec-08 4:35

Hamid_RT

1-Dec-08 4:35

Change color of a text or a control?

locked chm file.

n1pabs1-Dec-08 1:56

n1pabs

1-Dec-08 1:56

Hi All,

Hopefully someone can help me, if possible Smile | :)

I have a problem with a locked chm file (htmlhelp file), it is launched from a printer driver so the process thats handling it is the explorer.exe, so when the help file is closed, explorer.exe still has a handle to the file. If I manual close the handle, using process explorer, then replace the file the html help window does not display the content. If I kill teh explorer.exe process and relaunch everything works OK.

I believe the problem is due to the hhctrl.ocx not being unloaded until explorer.exe is closed and restarted, is there a way to unload hhctrl.ocx without killing the explorer.exe?

Thanks!

Re: locked chm file.

James R. Twine1-Dec-08 4:21

James R. Twine

1-Dec-08 4:21

   Likely not - I believe that once a DLL is loaded into a process, unloading it is not possible (normally).

   How about this - instead of opening the file itself, try copying it to a temp location and open the copy instead. After having it opened, open/close it again (via code) with the DELETE_ON_CLOSE flag and the file should clean itself up when it is finally closed.

   Peace!

-=- James
Please rate this message - let me know if I helped or not!<hr></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!
Remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
See DeleteFXPFiles

Re: locked chm file.

n1pabs1-Dec-08 4:49

n1pabs

1-Dec-08 4:49

Thanks for the suggestion, unfortunately this can not be done as it would involve re-writting alot of drivers. But if I can not unload it then there is nothing that can be done.

Thanks again!

CRectTracker with rotate feature

PavelAndreevich1-Dec-08 1:54

PavelAndreevich

1-Dec-08 1:54

Hello!

Recently, i faced with the problem of rotating selection area using MFC class CRectTracker.

Can anybody share this piece of code?

Thanks in advance.

Re: CRectTracker with rotate feature

Laan821-Dec-08 2:13

Laan82

1-Dec-08 2:13

The CRectTracker doesn't have the rotate function. Someone have develop class similar to CRectTracker that have this function. A useful class to do what you need is qTransformTracker and you can find it here www.codeguru.com/cpp/g-m/gdi/gdi/article.php/c3681

Re: CRectTracker with rotate feature

PavelAndreevich1-Dec-08 2:22

PavelAndreevich

1-Dec-08 2:22

I know it. But since our application is written with usage CRectTracker reasonably simply to add this class with the necessary methods. Somebody already did it?

Re: CRectTracker with rotate feature

Laan821-Dec-08 2:33

Laan82

1-Dec-08 2:33

Excuse me I haven't understood your problem before. Unfortunately I don't know if someone have done this method before.

Re: CRectTracker with rotate feature

SandipG 1-Dec-08 3:44

SandipG

1-Dec-08 3:44

Does QTransformTracker[^] help?

Regards,
Sandip.

Re: CRectTracker with rotate feature

PavelAndreevich1-Dec-08 5:36

PavelAndreevich

1-Dec-08 5:36

SandipG wrote:
Does QTransformTracker[^] help?

Since our application is written with usage CRectTracker reasonably simply to add this
class with the necessary methods.

GetNextItem is not working

Pryabu1-Dec-08 1:32

Pryabu

1-Dec-08 1:32

nItem = m_ctrlList1.GetSelectedCount();

if (nItem > 0)
{
for (int i=0;i < nItem;i++)
{
m_ctrlList1.GetItemText(i,0,szText,sizeof(szText));
nItem = m_ctrlList1.GetNextItem(nItem, LVNI_SELECTED);
m_ctrlList1.Update(nItem);
::MessageBox(NULL,szText,"Test",MB_OK);
}
}

Im using ListCtrl with one column. If i have selected items 3,4,5, GetNextItem is showing item number 1 and 2.

Can anyone please tell where is the mistake?

Re: GetNextItem is not working

CPallini1-Dec-08 2:08

CPallini

1-Dec-08 2:08

Your code have several flaws (for instance you're badly changing the value of the variable nItem, that controls the loop). Try

int nSel = -1;
do
{
  nSel = m_ctrlList1.GetNextItem(nSel, LVNI_SELECTED);
  if ( nSel != -1 )
  {
    m_ctrlList1.GetItemText(nSel, 0, szText, sizeof(szText));
    ::MessageBox(NULL, szText, "Test", MB_OK);
  }
} while (nSel != -1);

Re: GetNextItem is not working

Pryabu1-Dec-08 18:31

Pryabu

1-Dec-08 18:31

Thanks i got it

You are welcome.

CPallini1-Dec-08 19:02

CPallini

1-Dec-08 19:02

You are welcome.
Smile | :)

Input Needed on Property Pages in External DLLs

Mattias G1-Dec-08 1:19

Mattias G

1-Dec-08 1:19

I'm working on an application that processes several kinds of file formats. The parsing and processing of the format take place in external plug-in libraries, implemented as DLLs. The parsers and processors are COM objects, implementing a few simple custom interfaces.

The problem is this: When importing files into the application we use a wizard with three pages (Select File->Define Settings->Finish). The first page of the wizard finds the correct external library to use for the file provided by the user, and then the library should create the second page with settings that apply to this file format only. This is where I get stuck.

One option would be to let the libraries add the page with something like this:
HRESULT GetPropertyPage(PROPSHEETPAGE** ppPage); However, the server application is implemented in MFC, and CPropertySheet doesn't play very well with the PROPSHEETPAGE struct. As far as I can see, there's no way to construct a CPropertyPage around a PROPSHEETPAGE. This solution would require that the first and last pages are implemented without MFC (not a major problem, but inconvenient).

Another option would be to venture into the world of IPropertyPage and other pre-defined interfaces. I have absolutely no idea on what to choose here, any input would be appreciated.

Thanks

error C2440 in Visual Studio 2005

SanjaySMK1-Dec-08 1:18

SanjaySMK

1-Dec-08 1:18

Hi,
I have some code in Visual C++, which I had earlier compiled using Visual Studio 6.0, and it compiled and linked fine. But the same code which I converted to VS 2005, is giving me this error 2440, as follows:

error C2440: 'specialization' : cannot convert from 'BOOL (__stdcall *)(LPCSTR,UINT_PTR)' to 'BOOL (__cdecl *const )(const char *,UINT)'

I think this is the error regarding the calling convention. Could somebody resolve this problem for me?

Thanks in advance.

Sanjay Khapre
Software Developer

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.