C / C++ / MFC

30-Mar-07 1:10

I have the written the following method for disabling some controls:

void RecordImageWindow::SetImagePanelEnabled(HWND hDlg, bool enable){<br />
	SendMessage(GetDlgItem(hDlg, IDC_TXTIMAGEFILELOCATION), WM_ENABLE, (WPARAM)enable, 0);<br />
	SendMessage(GetDlgItem(hDlg, IDC_COMBOIMAGEFILETYPE), WM_ENABLE, (WPARAM)enable, 0);<br />
	SendMessage(GetDlgItem(hDlg, IDC_CMDIMAGEFILELOCATION), WM_ENABLE, (WPARAM)enable, 0);<br />
<br />
}

I've checked the LRESULTs and called GetLastError and there are no problems, however none of the controls get disabled (the enable parameter is false). The text box gets greyed out but input can still be typed into it and the other controls are still usable.

Is WM_ENABLE the correct flag to send in order to disable Dialog controls? or should i be using something else...

Naveen30-Mar-07 1:18

Naveen

30-Mar-07 1:18

use EnableWindow Function

GetDlgItem(hDlg, IDC_TXTIMAGEFILELOCATION)->EnableWindow( FALSE );

WM_ENABLE message is actually a notification send by windows when a window is enabled or disabled.

nave

gunner_uk200030-Mar-07 1:22

Re: Disabling Controls [modified]

30-Mar-07 1:22

The Solution:

void RecordImageWindow::SetImagePanelEnabled(HWND hDlg, bool enable){<br />
	EnableWindow(GetDlgItem(hDlg, IDC_TXTIMAGEFILELOCATION), enable);<br />
	EnableWindow(GetDlgItem(hDlg, IDC_COMBOIMAGEFILETYPE), enable);<br />
	EnableWindow(GetDlgItem(hDlg, IDC_CMDIMAGEFILELOCATION), enable);<br />
}

Thanks for your help, mate.

Naveen30-Mar-07 1:31

Naveen

30-Mar-07 1:31

gunner_uk2000 wrote:
The Solution:

Seems like I have asked the question Sniff | :^)

How ever your code will create compilation error.

you need to modify it as

GetDlgItem(hDlg, IDC_TXTIMAGEFILELOCATION)->EnableWindow( enable );

or

::EnableWindow(GetDlgItem(hDlg, IDC_TXTIMAGEFILELOCATION)->m_hWnd, enable);

nave

gunner_uk200030-Mar-07 1:34

Re: Disabling Controls [modified]

30-Mar-07 1:34

It compiles and runs fine.

GetDlgItem returns a handle to the dialog item, so it can be passed in as the parameter for the EnableWindow method.

You can't call Enable window from it as HWND is just a handle and had no Enable window method.

Ian.

Naveen30-Mar-07 1:48

Naveen

30-Mar-07 1:48

hoo i thought u have called the CWnd::GetDlgItem function D'Oh! | :doh:

nave

prasad_som30-Mar-07 1:48

30-Mar-07 1:48

gunner_uk2000 wrote:
You can't call Enable window from it as HWND is just a handle and had no Enable window method.

What Navin is talking about is MFC function CWnd::EnableWindow, and what you are talking about is win32 API EnableWindow. So its correct in both cases.

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

gunner_uk200030-Mar-07 1:52

atl8.0 backward compatibility issue

30-Mar-07 1:52

Sorry, I should have made it clear I am using win32 API

Shiva Prasad30-Mar-07 1:09

Shiva Prasad

30-Mar-07 1:09

We have built a com based application in VC5, VC6 in debug mode & works fine.
when migrated to VC++ 8.0, com register class is failing.
VC6 binary is built which atl6.0.dll and works fine. but when the application is built with atl8.0 com register class is failing.

We are using CComModule class in atl6.0. But it looks like the same class is change to CAtlComModule in atl8.0

Is there any option which will enable backward comptible in atl8.0?

Re: atl8.0 backward compatibility issue

prasad_som30-Mar-07 3:29

"Additional include directories" problem

30-Mar-07 3:29

TssPrasad wrote:
We are using CComModule class in atl6.0. But it looks like the same class is change to CAtlComModule in atl8.0

Even though there are some changes. Component made under VC6, and again converted on VS2005 will not fail to register.

Try putting break point in DllRegisterServer, and see where it fails.

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

Aredel30-Mar-07 0:28

Aredel

30-Mar-07 0:28

Hi all,

It appears that there is some length restriction in VC++ 6.0 for the "Additional include directories" field. This is under Project-> Settings-> C/C++ tab -> Category: Preprocessor. Due to the specifics of the component I am working on I cant decrease the number of inlude paths that I have to enter in this field and at some point on VC just stops to accepts anymore paths and sh*ts start to happen. Ive tried to enter the paths manually in the dsp file but with no success. If someone has a solution for this, please help!

Note that a solution should mean that all include paths I need have to be stored somewhere in the project or at most in a file attached to the project in such a manner that if someone else wants to review my component one should only download it from the Source Safe Server and run it without any additional modifications in his side!

Approximate size for the additional include directories string I am trying to enter: ~3k Smile | :)

Re: "Additional include directories" problem

Taka Muraoka30-Mar-07 1:02

Taka Muraoka

30-Mar-07 1:02

Aredel wrote:
Approximate size for the additional include directories string I am trying to enter: ~3k

You've got to be kidding WTF | :WTF:

You could use the SUBST command to set up some drive aliases for common base directories, maybe create a batch file to set them up. Not an ideal solution but if you've got 3000+ characters of include paths already, I think you've got bigger problems as it is Roll eyes | :rolleyes:

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Re: "Additional include directories" problem

Aredel30-Mar-07 5:23

Aredel

30-Mar-07 5:23

I am not kidding. Project is big. Lots of components. I need them all. The path names are long themsleves too. SUBST cant be used because the idea is to copy the project on another machine and it should work without doing subst there.

I have seen this problem reported before but did not find any solution. I know its ridiculous but this is the situation! Anyone who knows how to deal with this problem is welcome!

Re: "Additional include directories" problem

bolivar12330-Mar-07 9:00

bolivar123

30-Mar-07 9:00

Consider this example:

Suppose your projects are setup in the following paths:

c:\MyProjects\common\include
c:\MyProjects\DLLs\DllProject1\include
c:\MyProjects\DLLs\DllProject2\include
c:\MyProjects\Project1\include

Lets suppose Project1 needs the includes from DLLProject1, DLLProject2, and common\include.

You could enter the include paths for Project1 using relative paths, relative to the Project1 project folder. Using the above example, your include path could be:

.\include;..\common\include;..\Dlls\DllProject1\include;..\Dlls\DllProject2\include

Alternatively, you might be able to use evironment variables (macros) in the include path. What you could do is define environment variables that define common directory paths into a single macro.

Using this technique, you could define these environment variables.

SET PROJECTBASE="C:\MyProjects\"
SET COMMONINCLUDE="%PROJECTBASE%common\include"
SET DLLBASE="%PROJECTBASE%DLLs"

Your include path would be:
.\include;$(COMMONINCLUDE);$(DLLBASE)\DLLProject1\include;$(DLLBASE)\DLLProject2\include;

The basic idea is to merge as many common folders into a single macro.

The IDE will automatically expand the $(<environment variable>) macros as needed. Using this technique makes it real easy to move your projects from one folder to the other without having to tweak each of the projects. You just have to adjust the environment variables.

I hope this information helps you or at least gives you ideas on how you can solve your include path problems.

This subject could be a good idea for a beginners article here on CP.

SHFileoperation

Vjys30-Mar-07 0:26

Re: SHFileoperation [modified]

30-Mar-07 0:26

Hai..
Iam using SHFileoperation to copy folders..
While copying those i need to show progress bar.I was able to do that upto some extent by using FOF_SAMPLEPROGRESS.
But in this it is not showing the file names which are being copied.
How to show the file names in the progress dialogbox??Can any one help me out..

Thanks in advance.

Regards
vijay

prasad_som30-Mar-07 0:32

30-Mar-07 0:32

Vjys wrote:
FOF_SAMPLEPROGRESS.

Its this flag causing it, have you seen its MSDN description ? It says,
Display a progress dialog box but do not show the file names.
Can you show code, what you are doing ?

-- modified at 6:46 Friday 30th March, 2007
This code just work perfect for me,

SHFILEOPSTRUCT sfo;
sfo.hwnd = NULL;
sfo.wFunc = FO_COPY;
sfo.pFrom = _T("F:\\FromFolder\0");
sfo.pTo = _T("c:\\TargetFolder\0");
sfo.fFlags =  NULL;
SHFileOperation(&sfo);

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

Vjys30-Mar-07 1:13

30-Mar-07 1:13

Thanks for reply..
The code is working perfectly 4 me..almost similar to you...
Are you getting the file names in the progress dialog box..
Ya i used FOF_SAMPLEPROGRESS, it is without file names.
I want with the file names.Generally we will get the file names also, right when we are copying files.
How to get it??
Thanks.

Regards
vijay

prasad_som30-Mar-07 1:42

30-Mar-07 1:42

Vjys wrote:
How to get it??

I guess, you have not seen previous post, which I modified already.

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

Vjys30-Mar-07 2:07

30-Mar-07 2:07

SHFILEOPSTRUCT SHFileOp;
ZeroMemory(&SHFileOp, sizeof(SHFILEOPSTRUCT));
SHFileOp.hwnd = NULL;
SHFileOp.wFunc = FO_COPY;
sPath+='\0';
SHFileOp.pFrom=sPath;
DestPath+='\0';
SHFileOp.pTo = DestPath;
SHFileOp.fFlags = FOF_NOCONFIRMMKDIR|FOF_SIMPLEPROGRESS;
//The Copying Function
SHFileOperation(&SHFileOp);

Ya this is the code..in it sPath & Destpath are var strings..

Regards
vijay

prasad_som30-Mar-07 2:11

30-Mar-07 2:11

I asked you to remove FOF_SIMPLEPROGRESS flag. Definitely , you have not read my first reply.
Your code should be like this,

SHFILEOPSTRUCT SHFileOp;
ZeroMemory(&SHFileOp, sizeof(SHFILEOPSTRUCT));
SHFileOp.hwnd = NULL;
SHFileOp.wFunc = FO_COPY;
sPath+='\0';
SHFileOp.pFrom=sPath;
DestPath+='\0';
SHFileOp.pTo = DestPath;
SHFileOp.fFlags = FOF_NOCONFIRMMKDIR/*|FOF_SIMPLEPROGRESS*/; 
//The Copying Function
SHFileOperation(&SHFileOp);

And use <pre> tags , while posting the code.

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

Vjys30-Mar-07 2:23

30-Mar-07 2:23

Thanku..Thanku very much..its working...
bye...

Regards
vijay

Programm3r30-Mar-07 1:45

Programm3r

30-Mar-07 1:45

Have a look at the

typedef struct _SHFILEOPSTRUCT {
    HWND hwnd;
    UINT wFunc;
    LPCTSTR pFrom;
    LPCTSTR pTo;
    FILEOP_FLAGS fFlags;
    BOOL fAnyOperationsAborted;
    LPVOID hNameMappings;
    LPCTSTR lpszProgressTitle;
} SHFILEOPSTRUCT, *LPSHFILEOPSTRUCT;

structure.

I.E:

wFunc
Value that indicates which operation to perform. This member can be one of the following values.
FO_COPY
Copy the files specified in the pFrom member to the location specified in the pTo member.
FO_DELETE
Delete the files specified in pFrom.
FO_MOVE
Move the files specified in pFrom to the location specified in pTo.
FO_RENAME
Rename the file specified in pFrom. You cannot use this flag to rename multiple files with a single function call. Use FO_MOVE instead.

Have a look Here[^]

Regards,

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^

Programm3r30-Mar-07 1:16

Programm3r

30-Mar-07 1:16

prasad_som wrote:
SHFILEOPSTRUCT sfo;sfo.hwnd = NULL;sfo.wFunc = FO_COPY;sfo.pFrom = _T("F:\\FromFolder\0");sfo.pTo = _T("c:\\TargetFolder\0");sfo.fFlags = NULL;SHFileOperation(&sfo);

Thanx prasad that helped me aswell, can the same be applied to files ??? To show file cpoy progress.

Many Thanx
Regards,

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^

Programm3r30-Mar-07 1:18

Programm3r

30-Mar-07 1:18

Programm3r wrote:
can the same be applied to files ???

Yes,

FOF_ALLOWUNDO  Preserve Undo information, if possible. If pFrom does not contain fully qualified path and 
	filenames, this flag is ignored.  
FOF_CONFIRMMOUSE  Not currently implemented.  
FOF_FILESONLY  Perform the operation on files only if a wildcard file name (*.*) is specified.  
FOF_MULTIDESTFILES  The pTo member specifies multiple destination files 
	(one for each source file) rather than one directory where all source files are to be deposited.  
FOF_NOCONFIRMATION  Respond with Yes to All for any dialog box that is displayed.  
FOF_NOCONFIRMMKDIR  Does not confirm the creation of a new directory if the operation requires one to be created.  
FOF_NOCOPYSECURITYATTRIBS  Version 4.71. Microsoft® Windows NT® only. The security attributes of the file 
	will not be copied.  
FOF_NOERRORUI  No user interface will be displayed if an error occurs.  
FOF_RENAMEONCOLLISION  Give the file being operated on a new name in a move, copy, or rename operation 
	if a file with the target name already exists.  
FOF_SILENT  Does not display a progress dialog box.  
FOF_SIMPLEPROGRESS  Displays a progress dialog box but does not show the file names.  
FOF_WANTMAPPINGHANDLE  If FOF_RENAMEONCOLLISION is specified, the hNameMappings member will be filled in 
	if any files were renamed.

Regards,

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^