I am trying tot attaching WndProc in WPF Page, not Window.
I am using this example:
http://blog.andreweichacker.com/2010/02/attaching-to-wndproc-in-wpf/
But it does not work for WPF Page.
Thank you.
That's because wndproc is a Windows concept, and is per window. It knows nothing about WPF pages which are constructs internal to WPF. Window is the only thing with a wndproc.
Related
I'm trying to create a modal popup window using the windows 8 style popup.
If I use the standard prism popup methods as described here :
http://msdn.microsoft.com/en-us/library/ff921081%28v=pandp.40%29.aspx
I only end up getting new windows. What I want is to have a popup that stays in the context of my window. I just can't find anyway of accomplishing this with a modal popup. Has anyone attempted this or knows of a way this can be accomplished?
Although nice, you won't be able to use the PopupWindowAction since inherently it uses a new window. You can, however, manually add an event handler to the event in your ViewModel from the code behind and do your interactivity there.
Hy!
I create a WPF application. I have a Windows Form element. This control displays the WebCamera picture.
I put it in canvas, 'cause I have to show the recodring time, so I also put a textblock into the canvas. My problem is that, I've already done everything with the From control, for example I set the ZIndex etc., send back, but the WebCam image always the highest lay. I cant send it behind. This element is a System.Windows.Forms.Integration.WindowsFormsHost
Can anybody help me? I hope I could write my problem understandable.
That's not possible. WindowsFormHost is HwndHost, and according to MSDN
HwndHost will appear on top of other WPF elements in the same
top-level window. However, a ToolTip or ContextMenu generated menu is
a separate top-level window, and so will behave correctly with
HwndHost.
Consider following options:
adding overlay controls to WinForms control
placing your overlay WPF controls inside a Popup window (you'll have to handle that window location manually)
look for a WPF control alternative for your WinForms control (or implement your own)
I am very new in WPF.
I have created a form style in Wpf application.
I want set this WPF application formstyle as my windows form application form style.
How can i do it.
There would be a great appreciation if someone could help me.
The form image is
you can override the forms onpaint event and drawing the region there. This allows to use GDI+ with antialiasing and make it look much cleaner.
you can use this solution also creating custom borders in winforms
The examples are found at here:
http://netcode.ru/dotnet/?lang=&katID=30&skatID=283&artID=7833
http://www.xtremevbtalk.com/showthread.php?t=288178
I am integrating a webcam in a WPF application. I can see the camera feed in the main window, as I pass its HANDLE on to the DirectShow functions. But this is not what I want.
The main form has a Image control, where I'd like to see the output. However, in order to do this, I need the control's Handle.
Any hint on how to do this?
Thanks in advance,
Gianluca.
An Image Control in WPF, unlike Windows Forms, doesn't actually have an HWND.
WPF works differently than Windows Forms - each control is not a wrapper around a native "window" with a handle, but rather composed together using Direct3D at runtime by the layout system.
If you need to actually host output from a Webcam inside of a WPF window, you should look at using HwndHost (or a subclass). The simplest way is often to just host a Windows Forms control inside of a WindowsFormsHost, though managing an HWND yourself via HwndHost is more efficient.
Using an WindowsFormsHost and a picture box inside is a good solution that I used for a similar problem where I needed a handle to display a video stream. But be careful, in order to work, the Window that is hosting the WindowsFormsHost control must have AllowsTransparency="false"!
I feel like I'm missing something really obvious here.
I know that forms in general have a Handle property, but I am using a System.Windows.Controls.TextBox and it does not have a Handle property.
How do I access the TextBox's handle? I noticed that RichTextBox has the Handle property, so why not the regular TextBox?
You can just call Handle on the TextBox. It is an inherited property from System.Windows.Forms.Control.
Edit: Question was updated to ask about WPF
WPF doesn't use handles like a typical Win32 application or WinForms application. Each control is not its own Window in WPF. You can verify this with Spy++, it cannot differentiate between each control. Therefore you cannot SendMessage to the individual controls like you can with WinForms and Win32 apps.
You can use WindowInteropHelper to get the parent window handle of a WPF window.