hi
I have a form in which i placed another form as MDI ,on moving the MDI form (Top,Bottom,Left,Right)it goes inside the boundaries of main form so the Mdi gets hidden.
i want to restrict the MDI form to move when it touches the form boundaries.
You need to capture the OnMove event for your child forms, and in that handler you need to make sure your child form's window rect is within the parent's boundary. If not you need to adjust the location of the child form.
An example of how to do this can be found here.
Related
I've been following the below page in order to have a child Form that I can click on its components (such as an edit) and have proper focus:
Working with MDI Forms in Delphi
The problem now is that the components on the parent Form show on top of the child Form. If I use the SendToBack() command for those components, they completely disappear. Here is a screenshot of what happens:
EDIT:
I have a Form with buttons and a ListView that displays client info. When I click on a client, I can click a button to view or edit that client, alternatively add a new one. The Edit/Add pops up a Form where I can input the info and save it. I'm using an OnClick event for each Edit that has a SetFocus(). That gets focus on each Edit, but then all the text is selected, so I cannot click on the line and start editing text - it just overrides unless I use an arrow first.
Initially, I used regular Forms and that's where I had the focus issue. MDI fixed that, but now it's the parent components that show on top of the child.
Concerning MDI forms: that is how MDI works. The main form is not supposed to have anything else than a menu bar and optionally a toolbar, aligned alTop. The child forms use the rest of the space. Well as #RemyLebeau suggested, you can add other controls too, if you align them.
But it turned out that the actual problem with using ordinary secondary forms was that the text in an edit control on the secondary form becomes selected when you set focus to the edit control in a button click. That is easy to change, right after you set the focus to an edit control:
Edit2.SelLength := 0; // nothing selected, cursor at beginning
Edit3.SelStart := Length(Edit3.Text); // nothing selected, cursor at end of text
Based in this my working code, now i need of a ScrollBox component and a Image component inside he. Eg:
The problem now is the ScrollBox. The MDIChild Form always stays behind, you can test, changing ScrollBox Align (None/Client) property.
Then what is need to MDIChild Form stay above of ScrollBox?
The MDI client window that hosts the MDI child forms is the bottom most window of the MDIForm's content. You can't make MDI child forms appear on top of anything else, because literally everything else placed on the MDIForm is on top of the MDI client window and thus on top of the child forms.
I have the MDI form with MDI child forms.
As you know, MDI from create scrollbar when child form is beyond the area automatically.
I'd like to use this scrollbar when i do mouse wheel.
I have a parent and child form in Delphi. Parent form contains a TControlBar and on the top of ControlBar there are two Toolbars.
On one of the toolbars there is a button which is used to open the child form.
When child form is displayed, top partion of the form goes below the control bar and top portion of the child form goes hidden below the parent form.
I think the problem is that my child form is using full part of the parent form as the display area.
To my knowledge, I think child form should use ClientWidth and ClientHeight as the display area.
ClientWidth and Clientheight is automatically set.
I want child form to use the remaining area (other then toolbar) for display purpose.
MDI child windows are children of the MDI client window, that's the window that you refer to as the 'remaining area'. Hence they cannot go above any other window parented by the form, like controlbars, toolbars, panels etc.. Additionally, MDI child windows are not constraint with the size of this MDI client window, you can think of the MDI client as an auto-scroll window. Child windows can be moved to overrun any of the edges and a scroll bar will appear to make it possible to restore a full view on them.
If I understand correctly what you want to do, you have to maximize the child windows. You can set the WindowState property of child windows to wsMaximized to that effect.
In Delphi 7, I have a model dialog and i would like to display inside the main form. Right now Its displaying outside the main window.
Im new to Delphi and I was unable to find the answer.
I want to embed the modal form inside the main form.
When I coded Parent := Application.MainForm, the application runs and the form is loaded after that the application become struck in such a way that I cant do any anything.
Set Position property of the modal form to poMainFormCenter. Or specify Left and Top of the modal form to place it where you want to. A user still will be able to move the modal form.
AFAIK a control cannot be enabled if it is a child of a disabled window. So Parent := Application.MainForm will not do the trick: ShowModal explicitly disables all top-level windows before showing the modal form.
you could also use "frames" for this.