#include <windows.h>
#include <stdio.h>
bool ctrlhandler( DWORD fdwctrltype )
{
switch( fdwctrltype )
{
// handle the ctrl-c signal.
case CTRL_C_EVENT:
printf( "ctrl-c event\n\n" );
_sleep(2000);
return(
true );
// ctrl-close: confirm that the user wants to exit.
case CTRL_CLOSE_EVENT:
printf( "ctrl-close event\n\n" );
_sleep(2000);
return(
true );
// pass other signals to the next handler.
case CTRL_BREAK_EVENT:
printf( "ctrl-break event\n\n" );
return false;
case CTRL_LOGOFF_EVENT:
printf( "ctrl-logoff event\n\n" );
_sleep(2000);
return false;
case CTRL_SHUTDOWN_EVENT:
printf( "ctrl-shutdown event\n\n" );
_sleep(2000);
return false;
default:
return false;
}
}
int main(
void )
{
if( SetConsoleCtrlHandler( (PHANDLER_ROUTINE) ctrlhandler,
true ) )
{
printf( "\nthe control handler is installed.\n" );
printf( "\n -- now try pressing ctrl+c or ctrl+break, or" );
printf( "\n try logging off or closing the console...\n" );
printf( "\n(...waiting in a loop for events...)\n\n" );
while(
1 ){ Sleep(
100);}
}
else
printf( "\nerror: could not set control handler");
}
View Code
CTRL_C_EVENT一個Ctrl + C的信號被接收，該信號或來自鍵盤，或來自GenerateConsoleCtrlEvent 函數CTRL_BREAK_EVENT一個 Ctrl + Break 信號被接收，該信號或來自鍵盤，或來自GenerateConsoleCtrlEvent 函數CTRL_CLOSE_EVENT當用戶系統關閉Console時，系統會發送此信號到此CTRL_LOGOFF_EVENT當用戶退出系統時系統會發送這個信號給所有的Console程序。該信號不能顯示是哪個用戶退出。CTRL_SHUTDOWN_EVENT當系統將要關閉時會發送此信號到所有Console程序。
转载于:https://www.cnblogs.com/Skyxj/p/3390985.html
相关资源：数据结构—成绩单生成器
