The mouse logger is an important tool to track computer mouse input activities. Here the simplest example of mouse logger is given.
A callback function (procedure) is defined for mouse to track its activities. This procedure is called every time by SetWindowsHookEx function when a mouse input is applied.
Source Code:
//_____________________________________________________________
#include <Windows.h>
#include <stdio.h>
HHOOK hMouseHook;
LRESULT CALLBACK mouseProc(int nCode, WPARAM wParam, LPARAM
lParam)
{
MOUSEHOOKSTRUCT
* pMouseStruct = (MOUSEHOOKSTRUCT *)lParam;
if (pMouseStruct != NULL)
{
if (wParam == WM_LBUTTONDOWN) //When mouse left button is
clicked.
{
printf("Mouse
isclicked.\n");
MessageBox(NULL, "mouse is
clicked!!!",
"key
pressed",
MB_ICONINFORMATION);
}
}
return CallNextHookEx(hMouseHook,
nCode, wParam, lParam);
}
/*Set the hook and set it to use the
callback function above. WH_MOUSE_LL means it will set a low level mouse hook.
More information about it at MSDN. The last 2 parameters are NULL, 0 because
the callback function is in the same thread and window as the function that
sets and releases the hook. If you create a hack you will not need the callback
function in another place then your own code file anyway.Read more about it at
MSDN. */
void SetHook()
{
hMouseHook
= SetWindowsHookEx(WH_MOUSE_LL, mouseProc, NULL, 0);
}
void ReleaseHook()
{
//If you need to release
thismouse hook, call this function.
UnhookWindowsHookEx(hMouseHook);
}
int main()
{
SetHook();
MSG
message;
while (GetMessage(&message, NULL, 0, 0))
{
;
}
return 0;
}
//______________________________________________________________
Output:
