System's tray area clock visual theme is documented in MSDN, so I suppose Microsoft expects us to be able to use it. I'd like to use it to draw my taskbar band's background, in order to blend better with the tray area. When I try to
OpenThemeData(NULL, L"CLOCK");
It always fails. The only way I found to get that theme, is locate the actual clock window, and to request its theme:
Use FindWindowEx to locate a window with Shell_TrayWnd class, then locate its child with class TrayNotifyWnd, then this window's child with TrayClockWClass class.
Call OpenThemeData and pass the actual clock's window handle.
Obviously, internal Windows window class names are undocumented. Although the method above seems to work, I'd rather use something less fragile.
Question: Is there any sane way to get tray area's clock visual theme?
Apparently you can't always use OpenThemeData with NULL
http://microsoft.public.platformsdk.shell.narkive.com/gkVTBGA2/cannot-open-theme-data-for-tray-notification-area
Jim Barry 6 years ago
You need to have an HWND that you can call SetWindowTheme for. Set
pszSubAppName to "TrayNotifyHoriz" or "TrayNotifyVert" and leave
pszSubIdList as NULL. You can then call OpenThemeData with
pszClassList set to "TrayNotify".
How anyone is supposed to figure this stuff out is totally beyond me.
The visual styles documentation is quite frankly abysmal, an absolute
disgrace.
-- Jim Barry, MVP (Windows SDK)
Related
I am trying to capture windows hidden behind my application. I am using windows 7 and VC++. I have tried printwindow() function which draws the both non-client and client area of hidden window, but captured window in the device context doesn't show desktop composition effects(aero effects). Instead it shows the captured window with windows 7 basic theme.
I have also tried with GetWindowDC() to retrive the DC of hidden window, and then Bitblt() it to memory DC but the captured window doesn't show non-client area (caption, close button, minimize button etc) correctly.
Anybody faced this issue?
Please help.
Click the link below. It leads to a MSDN site that lists all the existing Windows Functions ever of all history since Windows 95 up to Windows 8 (from period where Microsoft started Windows until present). It shows old windows functions of first Windows and new windows functions added for the new windows.
http://msdn.microsoft.com/en-us/library/windows/desktop/ff468919(v=vs.85).aspx
Anyway follow this site.
You will see the name of each function as a link.
Click any of them that you are interested.
Each link there leads to another MSDN site that explains all the basics knowledge that you must know about the function before using it, that you want to learn more. What that function does, its purpose, all its parameters and how to use each one, all their flags, all parameters types, return value and at last remarks section that shed more light and sometimes gives tips about the selected function.
Of course, you don't have to read all of them. Find in the list only the necessary functions to fit your needs. The functions that will solve your problem and answer your question that you posted.
By the way, I read your post, and I think that I found in the list the necessary functions that will do what you want to do, I will list them below, and say in one sentence what each does for what you need:
AnimateWindow - Enables you to produce special effects when showing or hiding windows. There are four types of animation: roll, slide, collapse or expand, and alpha-blended fade.
FlashWindow - Flashes the specified window one time. It does not change the active state of the window.
FlashWindowEx - Flashes the specified window specified number of times. It does not change the active state of the window.
Use these functions to achieve the aero effects that you want.
SetWindowPos - Changes the size, position, and Z order of a child, pop-up, or top-level window. These windows are ordered according to their appearance on the screen. The topmost window receives the highest rank and is the first window in the Z order.
Use this function to show the hidden windows on the top side (above all other windows) and on the screen front of you. The operating system will automatically draw the both non-client and client area of these windows without using any gdi, draw and paint functions yourself.
If you want these windows to return back to their previous state (where they were hidden), then save their state with GetWindowPlacement function and later call SetWindowPlacement to bring them back to their hidden state. You can try GetWindowRect and SetWindowPos instead to achieve the same goal.
I also think that you will be interested in GetWindowTheme and SetWindowTheme functions and all the draw theme functions (BackgroundEx, Edge, Icon, Text, TextEx).
There are more theme functions. Find in msdn and in other sites on the web.
I am using MFC to create a dialog project and trying to impart color to the buttons.
I came to know that the only way you can do is to make the button owner draw. OnCtlColor() does not work for buttons.
I am able to color the button overriding OnDrawItem , but the problem is that , in the process the 3D cool look (with slightly rounded corner that you get in Win7) is lost.
Is there any way to retain the native look and color the button on top of that?
This is not a trivial task. As long as you are using themed controls (what you want), you cannot do more than the theme allows.
You would have to re-implement drawing of the button on your own, making use of the theme API as much as possible to retain themed look, yet sneak-in your color.
Though note that you can hardly achieve anything better than, what .NET WinForms do, when you set the Button.BackColor:
See also question how to set Button BackColor?
Disassembling the WinForms ButtonStandardAdapter.PaintWorker will give you some idea and API you need to use. Beware, you need to do lots of coding!
For C++/MFC code check out Vista themed Owner-Drawn and Full-Custom Push/Menu/Image Buttons on CodeProject. Which probably actually does, what you want already (the SetBackgroundColor method), so you might reuse it.
I need to figure out how to programmatically find and select a context menu item from a separate application's system tray icon. The only way I could imagine accomplishing this was to use mouse_event() with some hard-coded x/y values, and set the icon to always be shown. Aside from the hacky use of hard-coding in general, the problem here is the assumption that the icon will retain it's position (which is likely to break any time another application loads/unloads). I was wondering if anybody knew any other way to go about this?
Depending on how the application has been written, selecting the item from the context menu will cause a WM_COMMAND message to be posted to a window belonging to the application. You can use a tool like Spy++ to check for this. If this is the case then all you would have to do (in theory) is simulate that message.
If the application does not use WM_COMMAND to receive selections from the context menu, your job is much harder. There is no documented method of discovering the position and identify of system tray items, and so your method of hard-coding the x/y values is probably the best option you have.
See this MSDN Forum article which discusses how to find the systemTray's Handle. The article then references a CodeProject Article on how to find the handle of the application you are searching for. I have not tried this but it looks like it might be a viable starting point.
I have a rather unusual question, namely, how is called this window from icon tray?
I would like to make it in my application, and I could not find his name. I would ask for some information, or the name, the rest I should have to deal with.
The Windows UX Guidelines don't say anything about it. From my perspective it's just a normal dialog, albeit one that has rather immediate actions (as opposed to first clicking on an OK button of sorts) and resides in a fairly small size in a specific location. It is meant to be opened, interacted with quickly and then dismissed, never being the center of your attention. If your idea fits those criteria as well, then go ahead. It's easy to recreate with standard means.
I previously asked a question about changing the cursor system-wide on OSX. I used NSCursor to change the cursor, but the effects are only as long as the application is active. When another application becomes active, the custom cursor is lost.
Here is a related, more general question. How can you write an application to have system-wife effects? For example drawing an image on-screen even when your application is not active, and something else is?
I understand I probably need to go at a lower level than the Cocoa APIs. I just cannot figure out where to start looking? Any specific Carbon APIs that I need to be looking at? Or even lower?
Any pointers would be appreciated! If you specifically know how to change the cursor system-wide or how to draw an image and move it around (no matter what application is active), that would solve my current problem as well! Can I write an application that can achieve this when its installed on the system?
Thanks!
You can achieve the effect you want, but not the way you're thinking about doing it.
You say,
I am writing a presentation aid application that shows the equivalent of the "laser pointer" on screen, programmatically. My first idea was to use the mouse cursor itself as the pointer, and change its appearance as a red circle.
Then fake that. Create an application, perhaps of type LSUIElement, perhaps not, depending on the behavior you want. Create a borderless window (type NSBorderlessWindowMask) and fill it with a clear color. Set its window level high enough so that it floats over everything (using -[NSWindow setLevel:], though I can't think of what the best level would be off-hand), and draw into it.
It's true that you cannot set the cursor when you are not the foremost app. It's true that you cannot just scribble on the screen. But you can get the same effects if you're clever.
This behaviour is not provided by any APIs on Mac OS X. You would have to modify the resource files in the OS, and that's a very dangerous operation that could brick the target computer. You have to know what you're doing.
Are you trying to implement a theming app or something like that? What's your goal? If you tell us what you are trying to do, we may be able to suggest alternate approaches.