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Win32 Splitter Control
(4 answers)
Closed 3 years ago.
Using Win32 not MFC, how would I create a resizable or split controls?
As an example, a window with two edit controls side by side with the ability to resize them with a common divider. In the same way this dialog box can resized.
Not necessarily after a full example just a point in the right direction. Everything I lookup is about resizing entire windows not single controls (windows) inside the parent window.
Edit
Added image is show my example.
Everything I lookup is about resizing windows not controls.
Well, suddenly controls are, in fact, a windows as well, just visually little bit different.
Resizing controls is the same as resizing the window. In Win API it's handled by SetWindowPos function.
To properly resize controls when your window is resized you have to handle WM_SIZE Windows message in your main window and then resize/move your controls accordingly.
Updated:
After looking at your image:
Basically, if i understand your intentions, you need some custom divider/control, dragging which will eventually resize/move corresponding edit controls. Right?
In terms of pure Win API you will have to implement such control/divider in form of... another window.
In this window you will have to handle mouse clicks/moves and then do whatever you want with the (somehow) linked edit controls (basically implement all the logic).
Frankly saying this is not a very trivial task and that is what frameworks are here for (MFC, etc...).
Related
How to minimize a frameless window which has been set size to fixed by method setFixedSize in Qt?
Hi,
I'm using C++ code to make a Qt application. I set the window to frameless by
this->setWindowFlags(Qt::FramelessWindowHint);
So I can't click the minimize button support by Operating System and I made a customed one. But, when I want to use
this.showMinimized();
I found that it can't work with window which has been set fixed size by
this.setFixedSize(width, height);
So my question is, is there some other ways to make the window minimized which can be used by a window that set fixed size?
This is almost definitely not what you are looking for, but most if not all modern operating systems contain a minimize-all keyboard shortcut or show desktop button. You may have the button on your task bar, if you have one. If not, try windows-key+d or control-alt-d. If you want to learn about how to minimize a qt window from within your code(what I think you probably want), I recommend you check out the surprisingly clear documentation at doc.qt.io.
I have in my editor few editing modes. I can choose specific mode using buttons that are placed on a toolbar. I want to indicate which mode is currently on. When I press appropriate button - I want to make the clicked button remain pushed. How do I do that in WinAPI? My toolbar uses bitmaps for icons if that's relevant.
There used to be a way to get something like the look and feel of a toolbar by using a normal check box with the BS_PUSHLIKE style set. But that got broken a bit with Windows XP because of mouse hover effects, so it's not widely used any more.
If you want to create your own toolbar, without the help of MFC, there is an MSDN article that covers the creation and management of a toolbar window (actually a dedicated window class as part of the Common Controls Library).
This question already has answers here:
Closed 11 years ago.
Possible Duplicates:
How to set default font for all the windows in a Win32 Application?
Which Font is the default for MFC Dialog Controls?
I hate default Windows Api Window Font (it is the default system font , i think). I know how to change the font of an individual child, say a button. But isn't there a way to change the font of the entire application so that I don't have to use SendMessage(...WM_SETFONT) on every single widget in my program?
Code examples are welcomed. (I am using C++)
One way would be to use EnumChildWindows:
BOOL CALLBACK SetChildFont(HWND hwndChild, LPARAM lParam)
{
HFONT hFont = (HFONT)lParam;
SendMessage(hwndChild, WM_SETFONT, (WPARAM)hFont, TRUE);
}
EnumChildWindows(hwndParent, SetChildFont, (LPARAM)hFont);
I explain all of this in quite a bit of depth here: Which Font is the default for MFC Dialog Controls? Definitely required reading for any Win32 developer who cares about getting the UI right.
There's no way to set the font for an entire application. The best thing you can do is set the font for a parent window and take advantage of the fact that most controls will inherit their font from their parent. To make extra sure that this works, you can write your own simple SendMessageToChildren function like MFC offers, which just walks down through the children of a particular parent recursively and sends each of them the WM_SETFONT message.
But WM_SETFONT is really your only option here. You can't set a font for an entire class like you can a background brush. Getting this right can be challenging, but I agree that it is a very important to try. The hallmark of an inconsistent UI and an unprofessional application is one that does not use the correct default GUI font. Windows Vista came along and complicated things even further by switching not only the face to Segoe UI, but the default size to 9 point.
Hello there I have issue with overlapping of child windows,I have created a software with menu driven interface( IDR_MAINFRAME - CFormView
etc) and upon clicking one of the menu items another child-window appears( Dialog based ) where I do the calculations as a normal
calculator.Now if I open any other entry say conversion of metrics which is also in menu entry then on overlapping with any other such
window the background windows gets horribly disfigured and if i move about the calculator or the metrics conversion calculator randomly
they get disfigured and its a mess.Also I have put up a bitmap image on the background.Upon moving the calculator the background image also
gets erased.
Please let me know about how to handle this issue.I have googled and found that handling of paint messages or WM_ERASEBKGND helps ..but I
have tried this piece of code which just doesn't help in OnEraseBkGnd();
BOOL COfficesoftDlg::OnEraseBkgnd(CDC* pDC)
{
// TODO: Add your message handler code here and/or call default
CRect Rect;
GetClientRect(Rect);
//ClientToScreen(&Rect);
//this->ScreenToClient(&Rect);
this->InvalidateRect(Rect);
return CDialog::OnEraseBkgnd(pDC);
}
how can i achieve the smooth overlapping of different windows like a notepad overlapping a word document or even a calculator or even a VC6
IDE in my project.
Please explain it with an example .I am just a newbie and I need to understand in detail...thanks and regards
Override OnEraseBkgnd and return true so it stops erasing the background you're painting. Returning TRUE says that you've done the work. If you simply call the base class implementation, it's going to do this for you, and you'll lose the background until it gets a chance to paint.
You're not getting paint messages to the parent window for some reason. Make sure you're calling the modal in the correct manner. DoModal() works fine. Make sure you're not just creating the modal and showing it.
If your windows are children on the same dialog/window and they overlap or you have children on either dialog/window, make sure that you use clipchildren and clipsiblings (if children on a window overlap). Otherwise they'll get to paint in any order they choose artifacting all over the place.
Ensure that you're painting to memory and bitblting back to your dialog, otherwise you'll get a flashing effect.
I am designing a UI engine that needs to render into popup (WS_POPUP) windows. As these windows cannot be children of other windows, each instance is given its own taskbar icon.
I need a way to prevent the taskbar icons from appearing for certain windows that are created as "dialogs". I cannot use an OS-provided dialog because they all have frames (and I can't figure out how to render into them) or a tool-created custom dialog (which seem to require the CLR).
I am not an expert with the windows API and I feel that I have missed something obvious...
Also: Anything involving CLI/CLR is not an option.
EDIT:
The WS_EX_NOACTIVATE style can be used for this purpose as well, though the activation behavior would need to be emulated by the program.
If you set the WS_EX_TOOLWINDOW extended style for your window, it won't be shown in the task bar or Alt+Tab list. This does cause the window to be rendered slightly differently, however (thinking floating tool palette).