C / C++ / MFC

30-Apr-09 8:50

What I'm trying to do is create a dialog resource, assign some buttons and edit boxes on it and attach it to a CDockablePane object so that I can dock the dialog. How can I do this?

David Crow30-Apr-09 8:59

David Crow

30-Apr-09 8:59

eight wrote:
How can I do this?

Which part exactly?

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Maximilien30-Apr-09 9:27

Maximilien

30-Apr-09 9:27

I've done this recently
In the OnCreate of your derived CDockablePane class, create a dialog with this as the parent of the dialog.

something like :

int YouDerivedClass::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
  if (CDockablePane::OnCreate(lpCreateStruct) == -1)
    return -1;

  m_YourDialog.Create(IDD_SOMETHING, this);
  //...
}

Do forget to set the style of your dialog to childand no border

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eight1-May-09 5:18

1-May-09 5:18

Here are the steps that I took.

1. I've created a new MFC SDI project (DialogDockableTester), with Visual Studio style, maximized, and with ribbons.
2. I've created a dialog, IDD_TEMPDLG. Border = None, Style = Child.
3. Added class CTempDlg : public CDialog to use IDD_TEMPDLG
4. Added class CMyDockablePane : public CDockablePane
5. Added an object of CTempDlg, m_TempDlg in CDialogDockableTesterView
6. Overridden CMyDockablePane::OnCreate(LPCREATESTRUCT lpCreateStruct) with this

int CMyDockablePane::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CDockablePane::OnCreate(lpCreateStruct) == -1)
		return -1;

	m_TempDlg.Create(IDD_TEMPDLG, this);

	return 0;
}

7. Added an object of CMyDockablePane, m_MyDockablePane in CMainFrame
8. Added this line in CMainFrame::OnCreate

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
        :
	:
	if (!m_MyDockablePane.Create(_T("MyDockablePane"), this, CRect(0, 0, 200, 200), TRUE, 100, WS_CHILD | WS_VISIBLE | 	WS_CLIPSIBLINGS | WS_CLIPCHILDREN | CBRS_BOTTOM | CBRS_FLOAT_MULTI))
	{
		return FALSE; // failed to create
	}
	m_MyDockablePane.EnableDocking(CBRS_ALIGN_ANY);
	DockPane(&m_MyDockablePane);
        return 0;
}

Still can't get it to work. Am I missin something?

Maximilien1-May-09 5:47

Maximilien

1-May-09 5:47

I just retried with a simple project, and I had to set the dialog visiblity.

int MyPage::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CDockablePane::OnCreate(lpCreateStruct) == -1)
		return -1;

	BOOL bRet = myDialog.Create(IDD_DIALOG1, this);
	ASSERT( bRet );
	myDialog.ShowWindow(SW_SHOW);
	return 0;
}

In my mainframe :

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CMDIFrameWndEx::OnCreate(lpCreateStruct) == -1)
		return -1;

	CMFCVisualManager::SetDefaultManager(RUNTIME_CLASS(CMFCVisualManagerWindows));

	CMDITabInfo mdiTabParams;
	mdiTabParams.m_style = CMFCTabCtrl::STYLE_3D_ONENOTE;
	mdiTabParams.m_bActiveTabCloseButton = TRUE;
	mdiTabParams.m_bTabIcons = FALSE;
	mdiTabParams.m_bAutoColor = TRUE;
	mdiTabParams.m_bDocumentMenu = TRUE;
	EnableMDITabbedGroups(TRUE, mdiTabParams);

// ....

	CString s2("Page");
	if (!myPage.Create(s2, this, CRect(0, 0, 200, 200), TRUE, ID_OPERATION_PAGE, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | CBRS_LEFT| CBRS_FLOAT_MULTI))
	{
		TRACE0("Failed to create objectPage\n");
		return FALSE; // failed to create
	}


	myPage.EnableDocking(CBRS_ALIGN_ANY);
	DockPane(&myPage);

	CDockingManager::SetDockingMode(DT_SMART);
	EnableAutoHidePanes(CBRS_ALIGN_ANY);
//...

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eight1-May-09 8:58

1-May-09 8:58

When I add the line

myDialog.ShowWindow(SW_SHOW);

It works! Thanks Maximilien. Smile | :)

ima2401098-Nov-09 2:20

ima240109

8-Nov-09 2:20

hi,
i've followed your step to pu dialog in dockpane but i can't see the dialog, i don't know how to fix this problem
Here are the steps that I took.

1. I've created a new MFC MDI project (DialogDockableTester), with Visual Studio style, maximized, and with ribbons.
2. I've created a dialog, IDD_TEMPDLG. Border = None, Style = Child.
3. Added class CTempDlg : public CDialog to use IDD_TEMPDLG
4. Added class CMyDockablePane : public CDockablePane
5. Overridden CMyDockablePane::OnCreate(LPCREATESTRUCT lpCreateStruct) with this
int CMyDockablePane::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDockablePane::OnCreate(lpCreateStruct) == -1)
return -1;

BOOL bRet = m_TempoDlg.Create(IDD_TEMPDLG, this);
ASSERT( bRet );
m_TempoDlg.ShowWindow(SW_SHOW);
return 0;

}
6. Added an object of CMyDockablePane, m_MyDockablePane in CMainFrame
7. Added this line in CMainFrame::OnCreate
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
// ....

CString s2("Page");
if (!myPage.Create(s2, this, CRect(0, 0, 200, 200), TRUE, ID_OPERATION_PAGE, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | CBRS_LEFT| CBRS_FLOAT_MULTI))
{
TRACE0("Failed to create objectPage\n");
return FALSE; // failed to create
}

myPage.EnableDocking(CBRS_ALIGN_ANY);
DockPane(&myPage);

CDockingManager::SetDockingMode(DT_SMART);
EnableAutoHidePanes(CBRS_ALIGN_ANY);
//...

}

in your steps you added an object of CTempDlg, m_TempDlg in CDialogDockableTesterView, and i don'nt know how to use m_TempDlg in CDialogDockableTesterView.cpp

Am I missin something?

eight9-Nov-09 18:31

9-Nov-09 18:31

I've recreated your project based on the given codes and it works. IDD_TEMPDLG is visible on the left side of the screen. An idea, CDockablePane state is automatically saved in the registry. If you're familiar with registry, you might want to delete "HKEY_CURRENT_USER > Software > Local App-Wizard Generated Applications > DialogDockableTester".

I had an MDI application and want to change the background color of client area, please suggest

ima2401099-Nov-09 22:42

ima240109

9-Nov-09 22:42

Hi,
what i have is a window split horizontally, and the dockpane is tranparent and on the down.
what can i do?

winsock send blocks

FotisSs30-Apr-09 8:16

FotisSs

30-Apr-09 8:16

Hi there

I have a strange problem.

I call the send function to send some bytes from a TCP sockets.
The sends command blocks until the socket receives a packet from the other side.
MSDN mentions that send blocks only if there is no buffer space in TCP stack.
But I only send 100bytes (plus there is no other network traffic)

Any ideas

Thanx

rajeshbhushetty30-Apr-09 7:00

rajeshbhushetty

30-Apr-09 7:00

Rajesh B

Re: I had an MDI application and want to change the background color of client area, please suggest

led mike30-Apr-09 8:01

led mike

30-Apr-09 8:01

try Rose, it's really pretty.

Re: I had an MDI application and want to change the background color of client area, please suggest

David Crow30-Apr-09 8:32

David Crow

30-Apr-09 8:32

Just handle the WM_ERASEBKGND message.

Re: I had an MDI application and want to change the background color of client area, please suggest

rajeshbhushetty13-May-09 3:21

rajeshbhushetty

13-May-09 3:21

It's worked.
Thanks David.

const void as return type

crewchill30-Apr-09 6:16

crewchill

30-Apr-09 6:16

I found this code a little confusing. Due to proprietary nature of the original source, I have to abstract this out.

What does const void return value mean? I can understand the intent of "const void*" return value, but "const void" seems to be just a typo?

Am I missing anything fancy with the construct here?

#include <stdio.h>

typedef const void (*hello)();

const void x()
{
  printf("x() is called\n");
}

int main()
{
  hello test=x;
  test();
}

Stuart Dootson30-Apr-09 6:24

Stuart Dootson

30-Apr-09 6:24

I don't believe you're missing anything - it does seem odd.

In fact, gcc raises a warning on a function returning const void:

a.c:2: warning: function definition has qualified void return type

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

crewchill30-Apr-09 9:33

crewchill

30-Apr-09 9:33

Hm... which gcc are you using? Mine doesn't even complain about it.

~
$ cat x.c
#include <stdio.h>

typedef const void (*hello)();

const void x()
{
  printf("x() is called\n");
}

int main()
{
  hello test=x;
  test();
}

~
$ gcc x.c

~
$ ./a.exe
x() is called

~
$ gcc --ver
Reading specs from /usr/lib/gcc/i686-pc-cygwin/3.4.4/specs
Configured with: /usr/build/package/orig/test.respin/gcc-3.4.4-3/configure --ver
bose --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --libe
xecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --enable-langu
ages=c,ada,c++,d,f77,pascal,java,objc --enable-nls --without-included-gettext --
enable-version-specific-runtime-libs --without-x --enable-libgcj --disable-java-
awt --with-system-zlib --enable-interpreter --disable-libgcj-debug --enable-thre
ads=posix --enable-java-gc=boehm --disable-win32-registry --enable-sjlj-exceptio
ns --enable-hash-synchronization --enable-libstdcxx-debug
Thread model: posix
gcc version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)

Stuart Dootson30-Apr-09 9:56

Stuart Dootson

30-Apr-09 9:56

i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5490)

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

led mike30-Apr-09 8:04

led mike

30-Apr-09 8:04

crewchill wrote:
I found this code a little confusing.

Yes. Working with legacy code I often find confusing items or constructs. My initial reaction is, like yours:

crewchill wrote:
Am I missing anything fancy with the construct here?

Then later it becomes apparent that the author was just stupid. Sigh | :sigh:

On the bright side, tomorrow is FRIDAY! Beer | [beer]