How to track the Mouse Over event while moving Mouse over Menu or some other window?
I have tried TrackMouseEvent, But it's not supported by Win CE. Is there any other way?
You can use either the Tooltip control:
MSDN Article about ToolTips in WinCE
Or directly work with the WM_MOUSEMOVE messages and do it yourself. It's not very hard to with mouse messages because you can use the WindowFromPoint() function to know what window you mouse is hovering over.
Related
Does anyone know how to detect if a Win32(c++) window has stopped moving?
WM_MOVE detects when the window is moving, but how does one detect when it has stopped moving?
The windows message you wish to handle is WM_EXITSIZEMOVE.
WM_EXITSIZEMOVE message (Windows) # MSDN
Depending on what you wish to accomplish, there's also the possibility that you might be better served by reacting to WM_NCLBUTTONUP, which is sent when the mouse button is released in the non-client areas of a window, such as the title bar of any window with a caption, border chrome, etc.
WM_NCLBUTTONUP message (Windows) # MSDN
How does one check if the mouse is over a certain HWND? I have tried using the WM_MOUSELEAVE and WM_MOUSEMOVE messages to keep track, but if you click a button and drag the mouse out of the button, it doesn't receive the WM_MOUSELEAVE until the mouse is released, which is too late, because:
When you click a button, the WM_COMMAND message is only sent if:
1. The mouse was originally depressed over the button
2. The mouse is over the button
3. The mouse is released over the button
I need to replicate this functionality.
To duplicate this functionality, just call SetCapture() so that mouse messages are sent to your window even if the mouse leaves it. You can read the current mouse position as it moves and determine if it is still over your window/button (I'm still not 100% sure what you are doing). And, when the mouse button is released, you can call ReleaseCapture() to restore where mouse messages are sent.
EDIT: Oh, and you can use the Windows API function WindowFromPoint() to determine which window the mouse is over.
This is built-in to Windows, it is called 'mouse capture', SetCapture(hWnd). It ensures you get mouse messages even though the mouse has moved outside of the window. You call it on the WM_LBUTTONDOWN message notification.
I have an application that has a list of buttons and has customized tooltips. Whenever the mouse hovers through the buttons, the tooltips come out and is working fine. However, I want to hide the tooltips when the mouse cursor is outside the client area. How can I tell my application that the mouse is already out of the client area, when the mouse events I have are limited to the client area alone?
Thanks...
You use TrackMouseEvent, this will send you a WM_MOUSELEAVE message when the mouse leaves your window.
Or use GetCapture(), that's what I always do.
I'm working on a MFC C++ dialog where I need to respond to right mouse click events for a dialog even if the mouse is hovering over a control.
I could write event handler code for each control to delegate the work to the parent dialog, but I'm hoping there is a more elegant solution?
I'm hoping there is some way to intercept the windows messages, but I'm still figuring that part out. I've tried listening to the WM_COMMAND messages with Spy++ but I didn't see what I needed.
Any suggestions?
You could set up a hook to intercept mouse messages. Take a look at SetWindowsHookEx and WH_MOUSE
I would like to send some keystrokes from a C++ program into another window.
For that reason I would like to have the user select the target window similar to how it is done in the Spy++ utility that comes with Visual Studio (drag a crosshair cursor over target window and have target window highlighted by a frame).
How is this dragging and selecting done in Windows? I am completely lost as to where I might start to look for a mechanism to implement this feature.
Here's how it's usually done:
Capture the mouse using SetCapture. This will cause all mouse messages to be routed toward your app's window.
Handle the WM_MOUSEMOVE message. In your handler code, grab the window underneath the mouse using WindowFromPoint. That will get you the HWND of the window the mouse is currently over.
Now that you've got the window, you need a device context (HDC). You can get one using GetWindowDC for the specified window.
Now you can draw into the DC using typical GDI functions.
There are some things you have to look out for - cleanly erasing the selection rectangle and so forth, but that's one way to do it.
You could also draw into a screen DC to do this, but in any case you'll need the window handle in order to get the window rect.
If you Google around Spy++ source code you'll see a few examples of this technique.
Formers answers are wrong.
Spy++ source code has been given on G. Groups for years (see mainly Win32 api ng news://194.177.96.26/comp.os.ms-windows.programmer.win32)