Sending Mouse click to same application when is in a background desktop

Sending a mouse click to an application that is running in the background desktop can be challenging, but it can be accomplished using a combination of Windows API functions and the SetForegroundWindow function. Here are the basic steps:

1. Find the handle of the target window: To send a mouse click to a specific window, you first need to find its handle. You can use the FindWindow or FindWindowEx function to locate the window based on its class name, title, or other properties.

2. Get the process ID of the target window: Once you have the handle of the target window, you can use the GetWindowThreadProcessId function to get the process ID of the application that owns the window.

3. Activate the application: Before sending a mouse click, you need to activate the target application by bringing its main window to the foreground. You can use the SetForegroundWindow function to accomplish this.

4. Set the mouse position: Use the SetCursorPos function to set the position of the mouse to the desired location within the target window.

5. Send the mouse click: Finally, use the mouse_event function to simulate a mouse click. You can specify the type of click (left, right, or middle button) and any other parameters you need.

Here is some sample code to illustrate these steps:

scssCopy code
HWND hWnd = FindWindow(NULL, "Window Title"); // find window by title

DWORD dwProcessId = 0;

GetWindowThreadProcessId(hWnd, &dwProcessId); // get process ID



HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwProcessId);

if (hProcess) {

    SetForegroundWindow(hWnd); // activate the window

    SetCursorPos(x, y); // set the mouse position

    mouse_event(MOUSEEVENTF_LEFTDOWN, x, y, 0, 0); // simulate mouse click

    mouse_event(MOUSEEVENTF_LEFTUP, x, y, 0, 0);

    CloseHandle(hProcess);

}

Note that this code assumes that you have the necessary permissions to access the target process, and that you are running the code from a process that has the same or higher privileges than the target process. Additionally, this code assumes that you know the exact coordinates of the mouse click within the target window, which may require additional calculations or measurements depending on your use case.