What is the best way to Detect Window Move/Drag of other Processes? In Windows7 64-bit
I'm currently investigating Global Hooks from a DLL using C++ & C#. It's a pain as it doesn't want to work properly. I've gotten some success with keyboard and mouse hooks. but for window messages I've just got no idea whats wrong.
this is the code in my .dll file
#include <windows.h>
#include <iostream>
#include <stdio.h>
HINSTANCE hinst;
#pragma data_seg(".shared")
HHOOK hhk;
WNDPROC realProc;
#pragma data_seg()
//#pragma comment(linker, "/SECTION:.shared,RWS") compiler error in VC++ 2008 express
LRESULT CALLBACK wireKeyboardProc(int code, WPARAM wParam,LPARAM lParam) {
//open the standard out stream for writing
freopen("CONOUT$","w+t", stdout);
printf("code:%d wparam:%d lparam:%d\n", code, wParam, lParam);
/*
if (code < 0) {
return CallNextHookEx(0, code, wParam, lParam);
}
*/
//Beep(1000, 20);
return CallNextHookEx(hhk, code, wParam, lParam);
}
LRESULT CALLBACK hookProc(HWND h, UINT msg, WPARAM wp, LPARAM lp)
{
//open the standard out stream for writing
freopen("CONOUT$","w+t", stdout);
printf("h:%d msg:%d wp:%d lp:%d\n", h, msg, wp, lp);
return CallWindowProc(realProc, h, msg, wp, lp);
}
extern "C" __declspec(dllexport) void install(unsigned long threadId, HWND hwnd) {
//open the standard out stream for writing
freopen("CONOUT$","w+t", stdout);
//works for WH_KEYBOARD WH_MOUSE but doesnt work for WH_CALLWNDPROC
hhk = SetWindowsHookEx(WH_CALLWNDPROC, wireKeyboardProc, hinst, threadId);
printf("threadId: %d xxx: %d\n", threadId, hhk);
/*
//dont know whats wrong the return value of realProc is 0
realProc = (WNDPROC)SetWindowLongPtr(hwnd, GWL_WNDPROC, (LONG_PTR)hookProc);
printf("hwnd: %d xxx: %d\n", hwnd, realProc);
*/
}
extern "C" __declspec(dllexport) void uninstall() {
UnhookWindowsHookEx(hhk);
}
BOOL WINAPI DllMain(__in HINSTANCE hinstDLL, __in DWORD fdwReason, __in LPVOID lpvReserved) {
hinst = hinstDLL;
return TRUE;
}
I was thinking of making my own Aero Snap. This is just for fun.
Thanks for any help.
After some extra googling i found a open source project that does almost exactly what i want.
http://sourceforge.net/projects/powerresizer/
it compiles easy without errors too. it shows in the code that it uses
and a custom dll for the hook procedure. it also shows some other tricks. never seen SetWinEventHook anywhere else. upvote if you learned something.
damn of course it bugs with some windows too.