bool OnKeyHook(int code, WM wParam, KBDLLHOOKSTRUCT lParam, Hooker hooker)
{
if (lParam.vkCode == 44 && wParam == WM.KEYUP)
{
takeScreenshot();
}
return false;
}
void UpdateSysKeyStates(WM wParam, ref KBDLLHOOKSTRUCT lParam)
{
switch (wParam)
{
case WM.KEYDOWN:
case WM.SYSKEYDOWN:
if (lParam.vkCode == 160 || lParam.vkCode == 161) onShift = true;
if (lParam.vkCode == 162 || lParam.vkCode == 163) onCtrl = true;
if (lParam.vkCode == 164 || lParam.vkCode == 165) onAlt = true;
break;
case WM.KEYUP:
case WM.SYSKEYUP:
if (lParam.vkCode == 160 || lParam.vkCode == 161) onShift = false;
if (lParam.vkCode == 162 || lParam.vkCode == 163) onCtrl = false;
if (lParam.vkCode == 164 || lParam.vkCode == 165) onAlt = false;
break;
}
}
static extern int CallNextHookEx(int hook, int code, WM wParam, ref KBDLLHOOKSTRUCT lParam);
/// <summary>
/// キーのフック処理
/// </summary>
/// <param name="code"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns>ignore CallNextHookEx() or not</returns>
int OnKeyLLHook(int code, WM wParam, ref KBDLLHOOKSTRUCT lParam)
{
UpdateSysKeyStates(wParam, ref lParam);
bool ignore = false;
if (OnKeyHook != null)
{
ignore = OnKeyHook(code, wParam, lParam, this);
}
return ignore ? 1 : CallNextHookEx(0, code, wParam, ref lParam);
}