barrier/src/lib/platform/MSWindowsHookResource.cpp

34 lines
699 B
C++

#include "MSWindowsHookResource.h"
WindowsHookResource::WindowsHookResource() :
_hook(NULL)
{
}
WindowsHookResource::~WindowsHookResource()
{
unset();
}
bool WindowsHookResource::set(int idHook, HOOKPROC lpfn, HINSTANCE hmod, DWORD dwThreadId)
{
if (is_set())
return false;
_hook = SetWindowsHookEx(idHook, lpfn, hmod, dwThreadId);
return is_set();
}
bool WindowsHookResource::unset()
{
if (is_set()) {
if (UnhookWindowsHookEx(_hook) == 0) {
return false;
}
_hook = NULL;
}
return true;
}
bool WindowsHookResource::is_set() const { return _hook != NULL; }
WindowsHookResource::operator HHOOK() const { return _hook; }