I've got a few layered windows in my app that use UpdateLayeredWindow() to handle their visual representation. According to the MSDN article on layered windows, "when using UpdateLayeredWindow() the application doesn't need to respond to WM_PAINT or other painting messages." They shared some of the same message handlers as non-layered ...
I made a window sitter in Visual Basic 6 a few years back, which used layered windows colorkeying to painlessly make the form nonrectangular. I tried to rewrite the window sitter in C# earlier this week, judging that the old code was a mess, and noticed that any clicks within the form's client rectangle were caught by the form, while th...
I'm working with a Win32 application that needs to create a variety of custom window types. In particular, these windows are often non-rectangle, have shadows, or are mostly transparent. I'm currently using WS_EX_LAYERED with UpdateLayeredWindow to create transparent windows that I can then draw my arbitrary graphics on. However, I fin...
Hi, I have a program that displays a main window, a layered window and implements COM drag and drop. In general terms: I create a normal top level window. I create a layered window using WS_EX_LAYERED and UpdateLayeredWindow/SetLayeredWindowAttributes (I've tried both). The layered window sits on top of the window created in 1. The la...
i've created a layered window by adding the the WS_EX_LAYERED extended style: wndClass.ExStyle = wndClass.ExStyle || WS_EX_LAYERED; The window will use black as the chroma key color value. i've left a large surround of black to make the problem obvious: After the window is constructed, i tell it to use black as a chroma-key color...
Looking at a Windows tooltips class hint window, i see that it draws its drop-shadow outside the hint window's actual rectangle. Using SpyXX - i can get the tooltip's window rect, and class styles: Rectangle: (440, 229)-(544, 249), 104x20 Restored Rect: (440, 229)-(544, 249), 104x20 Client Rect: (0, 0)-(104, 20), 104x20 You'...
I have a layered (TransparencyKey is set) winform w/ a WebBrowser control on it that navigates to a page that contains flash (swf). Everything works okay except that when flash shows a security popup, none of the buttons on the popup respond to mouse click, so I can't click Allow/Deny. Right-click works but only shows the context menu t...
Hi, I want to develope a graphicintensive application. It should be hardwareaccelerated with DirectX. Also it must looking good, so I use a LayeredWindow for nice shadoweffects. But now I have a big problem, because I cannot draw with DX on a LayeredWindow. So I search for a possibility to render with DX into a bitmap, so I can use it ...
I'm trying to figure out why I've been getting an empty update rectangle when I call InvalidateRect on a transparent window. The idea is that I've drawn something on the window (it gets temporarily switched to have an alpha of 1/255 for the drawing), and then I switch it to full transparent mode (i.e. alpha of 0) in order to interact wi...
I would like to have a layered window that is always-on-top, which I can accomplish, but there are certain screen elements that still get drawn over it, such as menus (including the start menu). Is there any way to make a window or child window of my application have a high enough top-ness property that it will draw over another applic...