问个比较急的问题,明天就要交差了!!! 200

Question

我想捕获 WM_SYSCOMMAND 消息, 用全局钩子怎么实现啊.
系统屏保启动前会发送这个消息,我想捕获它,然后禁止屏保!!希望能给出代码.
谢谢了

Answer 1

BOOL   CMFPApp::PreTranslateMessage(MSG*   pMsg)     
  {   
  //   TODO:   Add   your   specialized   code   here   and/or   call   the   base   class   
  if(pMsg->message==WM_SYSCOMMAND   &&   pMsg->wParam==SC_SCREENSAVE)return   true;   
  return   CWinApp::PreTranslateMessage(pMsg);   
  }

Answer 2

如果只是想在你程序运行的时候暂时禁用屏幕保护的话,不用那么麻烦.
系统提供了一系统的API帮助你直接管理屏幕保护和电源管理选项.

Answer 3

#include <windows.h>HHOOK g_hMouse=NULL;
HHOOK g_hKeyboard=NULL;#pragma data_seg("MySec")
HWND g_hWnd=NULL;
#pragma data_seg()//#pragma comment(linker,"/section:MySec,RWS")
/*HINSTANCE g_hInst;BOOL WINAPI DllMain(
  HINSTANCE hinstDLL,  // handle to the DLL module
  DWORD fdwReason,     // reason for calling function
  LPVOID lpvReserved   // reserved
)
{
g_hInst=hinstDLL;
}*/LRESULT CALLBACK MouseProc(
  int nCode,      // hook code
  WPARAM wParam,  // message identifier
  LPARAM lParam   // mouse coordinates
)
{
return 1;
}LRESULT CALLBACK KeyboardProc(
  int code,       // hook code
  WPARAM wParam,  // virtual-key code
  LPARAM lParam   // keystroke-message information
)
{
if(VK_F2==wParam)
{
SendMessage(g_hWnd,WM_CLOSE,0,0);
UnhookWindowsHookEx(g_hMouse);
UnhookWindowsHookEx(g_hKeyboard);
}
return 1;
}void SetHook(HWND hwnd)
{
g_hWnd=hwnd;
g_hMouse=SetWindowsHookEx(WH_MOUSE,MouseProc,GetModuleHandle("Hook"),0);
g_hKeyboard=SetWindowsHookEx(WH_KEYBOARD,KeyboardProc,GetModuleHandle("Hook"),0);
}

Answer 4

http://topic.csdn.net/t/20020204/17/518669.html