HookHandle:= SetWindowsHookEx(WH_JOURNALRECORD, HookProc, HInstance, 0);
While GetMessage(TheMessage, 0, 0, 0) do
begin
if (TheMessage.Message = WM_CANCELJOURNAL) then // 重新挂钩
HookHandle := SetWindowsHookEx(WH_JOURNALRECORD, HookProc, HInstance, 0);
end;
UnHookWindowsHookEx(HookHandle);不大懂 这个循环的原理?
还有的就是 HookProc子程序中最后一句
Result := CallNextHookEx(HookHandle, nCode, wParam, lParam);有什么作用?
While GetMessage(TheMessage, 0, 0, 0) do
begin
if (TheMessage.Message = WM_CANCELJOURNAL) then // 重新挂钩
HookHandle := SetWindowsHookEx(WH_JOURNALRECORD, HookProc, HInstance, 0);
end;
UnHookWindowsHookEx(HookHandle);不大懂 这个循环的原理?
还有的就是 HookProc子程序中最后一句
Result := CallNextHookEx(HookHandle, nCode, wParam, lParam);有什么作用?
解决方案 »
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