How to make my program appear and disappear on the screen - c++

My program simulates some mouse movements, but the cmd screen remains open, I would like to put a key to appear and disappear from the screen, and another key for it to close completely

If "cmd screen" is meant as Windows console then there are simple Windows API calls:
// this hides console window
::ShowWindow(::GetConsoleWindow(), SW_HIDE);
// this shows
::ShowWindow(::GetConsoleWindow(), SW_SHOW);
// this checks visibility
if (::IsWindowVisible(::GetConsoleWindow())) {
// do your things
}
You need to include windows.h for those. As you wrote that you alter mouse you have likely done it already.

Related

How do I make a window inactive on Windows

I'm trying to create an C++ console app that shows itself when I press a button. However, when the app appears, it appears on top of all other windows. Is there a way I can prevent this from happening (i.e. have the window appear in the background)?
Here is the part of the code that is important:
ShowWindow(GetConsoleWindow(), SW_HIDE);
//stuff happens
ShowWindow(GetConsoleWindow(), SW_SHOW);
When the window is shown, it does so in front of all other windows (which I don't want).
Here is an image of this behavior:
You can call SetWindowPos in place of ShowWindow, specifying the SWP_SHOWWINDOW, SWP_NOZORDER, SWP_NOOWNERZORDER, and SWP_NOACTIVATE flags. This will show the window, without moving it up or down the Z order, or activating it.

How to keep the focus on the top window of 1st screen after clicking 2nd screen

we have one desktop(1st screen) to display the image and another touchscreen(2nd screen) for the control, we wrote a virtual keyboard(html&javascript) on touchscreen, ideally when we touch the keys on the touchscreen, we could input text in editbox(in an input dialog window) in the 1st desktop. Now the problem is the mouse is lost(originally it is in a input dialog in 1st desktop) when we touch the touchscreen, so we have to create a global window in C++ program, and manually copy each possible input dialog window to this global window when it is in use, also we need to set focus for each possible editbox in this input dialog window. please see this:
for each possible input dialog, we add
extern HWND activeInputWindow;
activeInputWindow=m_Edit_Name.m_hWnd;
also for each possible input box in this window we have to add
activeInputWindow=GetDlgItem(IDC_EDIT_TEST)->m_hWnd;
then the program always do this to get back the original window after clicking the touchscreen(2nd window)
extern HWND activeInputWindow;
if(IsWindow(activeInputWindow))
::SetFocus(activeInputWindow);
suppose we have 10 input window and 10 input boxes in each window,then I need to code 100 places! There must have some simple ways, windows osk.exe (virtual keyboard) have no problem for this but we have to use our own virtual keyboard.... I tried GetTopWindow() and GetForegroundWindow() but not working.. Many thanks for the help
This is trying to solve the problem using the wrong tools. What you really want is a window that receives input, but rejects activation. To achieve this, handle the WM_MOUSEACTIVATE message by returning MA_NOACTIVATE. This also works for touch input.
See How can I have a window that rejects activation but still receives pointer input? for all the ins and outs.
The problem is that your virtual keyboard is stealing the focus of the edit control. You'll need to prevent this.
Try to set the flag WS_EX_NOACTIVATE for a window's style or other approaches from this or this answers.

What is the difference of MouseInputs and KeyInputs (To get the window in the foreground)

Good day everybody.
It is so that one with SendInputs to send keys only has to call SetForegroundWindow() in order to bring the window into the foreground. This also works without problems.
Now it is so that one could think that with the mouse inputs the same procedure can be applied. But this was not possible. First you had to use the function AttachThreadInput() to get the window really in the foreground.
It is very confusing that it works with keys simply but with the mouse so cumbersome to be done. Can someone explain to me briefly why this is so?
Sorry for the title and the bad english, unfortunately, no other words have occurred to me.
Since it is too much code, I simply show the relevant for my question.
Keys:
if(SetForegroundWindow(window[id]))
{
//SENDINPUT for key, works without any problems. (Not with Mouse)
}
Mouse:
AttachThreadInput(dwCurID, dwMyID, TRUE);
SetWindowPos(window, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
SetWindowPos(window, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
SetForegroundWindow(window);
AttachThreadInput(dwCurID, dwMyID, FALSE);
//The Window is now on foreground, now use SendInput for Mouse. This way works
So I wonder really why not both works in the way of the key example. So the reason I know since the window is not really in the foreground and this is necessary for the MouseInputs. One might think that it would also be necessary for the Keyevents. Hence my confusion.
I wish you happy day!
If I understand the question correctly ... Yes, the keyboard and mouse input models are different.
But I think the real issue is that calling SetForegroundWindow on the window of another application is complicated. Windows has a long list of rules of when you can and cannot set the foreground window. (The intent is to make it hard for programs to push their windows in the user's face when the user wants to do something else.) What seems to work when you're testing might not actually work reliably in real life. For example, some of the rules depend on whether the current foreground window is owned by a process attached to a debugger. My guess is that you got lucky when you tested the keyboard case and you found a way around the rules when you worked on the mouse case.
Keyboard input is directed to the window with the keyboard focus. The window with keyboard focus is either the foreground window or a child of the foreground window. So to direct keyboard messages with SendInput to a particular application, you only have to make sure it has focus, which you can do by bringing its window to the foreground.
If you succeed, then the window you just brought to the foreground will make sure the window focus is set appropriate (e.g., by calling SetFocus on one of its children). If you were to try to call SetFocus yourself, on a window that belonged to another thread or process, you would first have to use AttachThreadInput just as you've done in the case for the mouse. (This is explained in SetFocus.)
Mouse input is (generally) directed to the window under the mouse, even if that window is not the foreground window. The big exception is when a window has "captured" the mouse, then all mouse input goes to that window, even if the mouse is over a different window. But the other exception is also the mouse scroll wheel messages, which seem to follow the window with keyboard focus.
I'm not entirely sure why (or whether) it's important to set the foreground window to send mouse input, unless it's because you're trying to make sure it gets the mouse scroll wheel messages.

Can I show a window without showing Windows Explorer taskbar?

I have created a new window using C + Win32 API, and I attached it to a game.
The game runs on Windowed (no border) mode, which means that it's simply a big window which is shown over the taskbar, creating the effect of a full-screen mode.
I've binded F11 to pop-up the console with:
ShowWindow(hConsole, SW_HIDE);
ShowWindow(hConsole, SW_SHOW);
That pop-ups the console window, and it works fine, except that it also shows the taskbar.
Is there any way to make the game still stay over the task bar, while showing the console?

How to keep window inactive on simulated clicks?

I made a program in C++ that simulates clicks on an inactive window using:
PostMessage (z, WM_LBUTTONDOWN, 0,MAKELONG(t.left+x,t.top+y));
But whenever it makes a click it activates the window and the window moves to the top.
Is there a way I can make the window stay inactive or another way to click it?
I used SetWindowPos(z , HWND_BOTTOM,....) to make that window be at the bottom of the z-order list but it still activates.
EDIT: the window is a game console
Try switching from PostMessage to SendInput and see if you get the same effect.