I have found the right code. It is:
The child window is descended from CScrollView. In the code I gave this
is pointed to by pView.
The parent of this child is the main window of the applicaion and is
descended from CMDIFrameWnd.
This code is being executed in a global object. So this object is not a
member of any other object. The pView pointer is a member of that
object's class and is set in its constructor. That object is instantiated
in another object pointed to by the pView pointer, and pView gets set by
passing to the constructor the this pointer.
In the code I gave earlier:
pView->GetWindowRect( &m_WndRect );
AfxGetMainWnd()->ScreenToClient( &m_WndRect );
GetWindowRect() is returning the rectangle in screen coordinates. This is
consistent with its documentation.
I am changing to client coordinates to cover the possibility the position
of the parent may have changed. I want to save and restore the position
of the child (pView) relative to its parent (the main window ).
I attemped your recommendations without changing to client coordinates.
As I expected the attempt at restoration showed the relative position of
the child after restoration in the Main Frame was dependent on the
position of the Main Window on the screen. The farther the Main Window
was away from the upper left corner of the screen the farther the child
window was from the upper left corner of the Main Window's client area.
So I tried the code:
Save:
pView->GetParentFrame()->GetWindowRect( &m_WndRect );
pView->GetParentFrame()->ScreenToClient( &m_WndRect );
Restore:
CFrameWnd *pFrame = pView->GetParentFrame();
pFrame->MoveWindow( &WndRect, TRUE );
The result was the upper left corner of the child's client area ended up
in the upper left corner of the parent's child area. The Title bar of the
child ended up under the Toolbar of the parent window making it
impossible to move the child. This was true regardles of where the child
was when the position was saved.
"AliR (VC++ MVP)" <AliR@online.nospam> wrote in message
news:yzkBh.19419$ji1.16752@newssvr12.news.prodigy.net...
By child window do you mean ChildFrame (CMDIChildWnd)? Try getting the
views Frame position.
Save
pView->GetParentFrame()->GetWindowRect( &m_WndRect );
Restore
CFrameWnd *pFrame = pView->GetParentFrame();
pFrame->MoveWindow( &WndRect, TRUE );
You shouldn't have to change the coordinates to Screen coordinates, You
only have to do that if the view is a popup. As long as it's embedded
in the frame the coordinates you pass to MoveWindow or SetWindowPos are
relative to the upper left corner of the parent window.
And in which class and method are you calling this code from?
AliR.
"Artist" <artist@sj.speakeasy.net> wrote in message
news:TYOdnVdtE_rIjEjYnZ2dnUVZ_qunnZ2d@speakeasy.net...
I want to save a child window's position and size in the Main Window of
an MDI application, and restore it at any time later. I want to do this
after the user may have reposition and resized it. The parent of this
child window is the Main Window. Below is the code I am using to save
the position and size:
pView->GetWindowRect( &m_WndRect );
AfxGetMainWnd()->ScreenToClient( &m_WndRect );
where pView is a pointer to the child window and m_WndRect is used for
the storage. Below is the code I am using in an attempt to restore the
position and size stored in m_WndRect:
CFrameWnd *pFrame = pView->GetParentFrame();
pFrame->MoveWindow( &WndRect, TRUE );
Where once again pView is a pointer to the child frame.
This does not quite work. When the restoration is attempted the child
window is below and a little to the right of where it was. It appears
to be lower by the sum of the widths of the Ttitle Bar, Menu Bar, and
Toolbar. It appears to the right of where it was by the width of the
the Main Window's border. It is as if the storage is referenced to the
upper left corner of the title bar and the restoration is referenced to
the upper left corner of the client area where its child windows
reside. This would mean instead of
AfxGetMainWnd()->ScreenToClient( &m_WndRect );
I need a function another function that would reference m_WndRect to
the upper left of the client area. I have tried in its place:
pView->GetParent()->ScreenToClient( &m_WndRect );
But this also did not work. The window always went to the upper left of
the Main Window's client area.
How can this be fixed?
***
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