I use two displays with different resolutions on my development machine. The display with a smaller resolution is configured as primary display. If I maximize my WPF application on the secondary display and show a popup control at the bottom it appears repositioned:
I guess, the framework uses the lower resolution of the primary display to check if the popup window has to be repositioned. Doesn't the WPF framework check for the current display resolution or do I have to configure this myself?
For repositioning popup control on two monitor, better to set Popup control Horizontal and Vertical offset based on PointToScreen property of MainWindow
var mousePosition = Mouse.GetPosition(Application.Current.MainWindow);
var pointToScreen = Application.Current.MainWindow.PointToScreen(mousePosition);
_popup.HorizontalOffset = pointToScreen.X;
_popup.VerticalOffset = pointToScreen.Y;
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I developed a Winforms application that has a Toolbar. The last element in the toolbar is a ToolStripDropDownButton with some items.
I needed this button to be shown apart from all other toolbar buttons, so I set the Alignment property to right.
In my PC this works perfectly, however, when I moved the whole Visual Studio project to my notebook and then ran the application, the menu items are not shown when I click the button, however, the dropdown button changes color indicating that it was selected.
At design time, items are shown correctly.
What is happening here and is it possible to solve it? At the moment, I set the button alignment to left, so that it is shown together with other toolbar buttons.
Thanks
Jaime
Check your DPI settings on your notebook. It is likely changing the size and padding of your elements. You can get around this by checking for the system's DPI value and calculating sizes of controls based on that.
var graphics = this.CreateGraphics();
var dpiX = graphics.DpiX / 96d; // Default DPI
var dpiY = graphics.DpiY / 96d; // Default DPI
myToolbar.Width = myWidth * dpiX;
myToolbar.Height= myHeight * dpiY;
I have a simple task that I want to accomplish: Have a WPF window launch with a Horizontal Alignment that is stretched to the total width of the current screen. I want to achieve a kind of custom Overlay MessageBox (I dont want to use third party controls such as MahApps), I am not using any third party references for this.
Please see what I have achieved so far (Not sure if the image will show, the link is http://imgur.com/e27DyNJ):
I have tried setting the width with a Controller object that I wrote which works, that basically sets the Width, Height, Left and Top to the width of the primary monitor. Downside is the window then pops up on the primary screen, not on the screen that is currently in use.
As far as I know, WPF doesn't have any multi-screen functions. You could PInvoke some native Multiple Display Monitor Functions, wrap them in a managed class and utilize them in that regard, though.
As a workaround, I have done the following:
var screen = System.Windows.Forms.Screen.FromRectangle(new System.Drawing.Rectangle((int)window.Left, (int)window.Top, (int)window.Width, (int)window.Height));
window.Width = screen.WorkingArea.Width;
window.Left = screen.WorkingArea.Left;
where window is the instance of my window I want to resize.
This works with the current screen the window was opened on.
I have wpf project with one Window (MainWindow). Depending upon the config file it shows one of two UserControl's as Content. It may be a horizontal (1920x1080) control or vertical (1080x1920) control. It's fine with horizontal screen, but when vertical is loaded I would like to do:
1) rotate window/control by 270 degrees
2) change primary screen orientation
I would prefer to just rotate application and don't interact with windows API. I can't change orientation manually, because I have only remote access to this computer.
You can not rotate the Window object itself, as it is positioned by the window management system built in Windows. You can, however, transform (and thus rotate) any FrameworkElement inside the window. This includes, but is not limited to, the Grid, the Button and the TextBox elements.
All you need to do is edit the LayoutTransform property on the element you want to rotate, which is most likely the root element in your window. Set the rotation to 270/-90 degrees and WPF will automatically rotate your UI.
Because you are using the LayoutTransform property, the layout system will also scale you UI correctly. The RenderTransform property causes the control to first be rendered, then be rotated.
YES WE CAN CHANGE SCCREEN ORIENTATION USING
DEVMODE & using System.Runtime.InteropServices;
its bit late to reply but I am replaying for the new ones , if someone com across this article for change screen rotation in C# or VB .
Please use the link given below to get help Mr. Hannes Completely write an article to change screen rotation and luckily its working fine for me (Windows 11) as now of..
https://www.codeguru.com/dotnet/creating-a-screen-rotator-in-net/
I have a ChildWindow which contains a ExpressionMediaPlayer inside it. When I click on the ChildWindow Media Player Full screen button it swiches the whole application to FullScreen Mode.
Is there a way to avoid it. I am not quite sure if this scenario is going to fall under SL security restrictions.
When I drag the ChildWindow(the position of ChildWindow changes) and click on the fullscreen
now the ChildWindow also changes it's position.
For example if I have dragged the ChildWindow 50px from Top and pressed the Full Screen button of of mediaPlayer (it contains) the Child Window also appears 50 pixels below the Screen Top.
But I want My ChildWindow to be FullScreen without having any Gap from LEFT,TOP,RIGHT or below.
Any help will be greatly appreciated.
Thanks,
Subhen
Silverlight only uses one of its two windows. The first is the normal window embedded in the Host application such as IE (or in windowless mode it co-operates with the host to draw directly on one of the host's windows in a give rectangle). The other window is a Fullscreen one.
When in full screen mode it moves all its rendering of its stack of content to the full screen window. You can't get Silverlight to render only some controls on the Fullscreen window, its an all or nothing proposition.
Creating a "fullscreenable" ChildWindow would be an interesting exercise. Probably a new templated control based on Childwindow with a new "Fullscreen" visual state (in a new state group) that hides the chrome and causes the content grid to stretch with Auto Width and Height.
Using Visual Studio 2008 WinForm designer, I have a container (form, panel, groupbox, whatever) and some controls in it.
The container is set to not automatically resize or dock in any way. When placing a control in the container I can use the snaplines to help in positioning the control.
However, the snaplines does not appear when I resize the container to the edge of the contained controls...
Is there a simple way to have the designer show me the snaplines of the contained controls when resizing the container?
The designer will only show the snap lines when moving a child control within a container. You can demonstrate it by moving a GroupBox around a Form and see that it shows snap lines when the GroupBox gets close to the edge of the Form, but if you were to resize the Form you won't see the snap lines appear.
If you're just looking to get all of the controls to line up in a uniform fashion, I'd suggest switching to SnapToGrid mode and using the grid lines to align your controls. You can set the SnapToGrid mode by going to Tools->Options->Windows Forms Designer->LayoutMode. Open your designer and you should see the grid appear, after that you can line your controls up with the grid.
After setting the layout of the form, you can also set anchoring property to all child controls appropriately, to right and bottom (or top and left), depending on the resizing you are making. Anchor property will hold child controls to same distance from the edges of the container (parent control).
In the WinForms designer, there is no support for snaplines when resizing the container control. The best way to work around this issue is to first size the container to the size you would like to use and then add controls. Optionally, you can change the Margin property of the container so that when moving controls inside the container, they will snap to the margin of the container, keeping it uniform.
Try:
container.AutoSize = true
container.AutoSizeMode = GrowAndShrink
container.Padding.All = 5