Hello people!
I'm trying to simulate a mouseclick to a window that is currently not the foreground window, so that I'm able to interact with it, even though there's another window ontop of it.
I'm using the following hook procedure to intercept the actual mouseclick, and then send number of SendMessage():
LRESULT CALLBACK LowLevelMouseProc(int nCode, WPARAM wParam, LPARAM lParam)
{
if(wParam == WM_LBUTTONDOWN)
{
MSLLHOOKSTRUCT* mouseInfo = (MSLLHOOKSTRUCT*)lParam;
HWND h = GetForegroundWindow();
DWORD dw, dw2;
//Get mouse coords and store them as a DWORD for LPARAM
SetWord(mouseInfo->pt.x, mouseInfo->pt.y, dw);
SetCapture(h);
SendMessage(h, WM_LBUTTONDOWN, MK_LBUTTON, dw);
SendMessage(h, WM_LBUTTONUP, MK_LBUTTON, dw);
ReleaseCapture();
//Prevent the real mouseclick from being processed
return 1;
}
return CallNextHookEx(NULL, nCode, wParam, lParam);
}
And yep I know that I'm actually attempting to send the mouse click to the foreground window in my code here, but this is just a test to keep it as simple as possible while figuring out the best method for solving my problem. I will later use some kind of
EnumWindows().
My actual problem is that, even though the messages are being send (which I can see using spy++), the window is not responding to the messages. Am I forgetting some kind of message that I have to send before these?
Thanks in advance!
If it has anything to do with it, I'm installing my hook with the following line:
SetWindowsHookEx(WH_MOUSE_LL, LowLevelMouseProc, NULL, 0)
Edit:
My SetWord function looks like this:
template <typename T>
void SetWord(T Hi, T Low, DWORD &out)
{
out = (Low & 0x0000FFFF) + (Hi << 16);
}
Which is working as it should, as I am getting the correct x and y coords!
This post has been edited by MathiasVP: 14 November 2010 - 07:25 AM
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