#include <stdio.h>

 #include <Windows.h>

 /*

     设置键盘大小写状态

     big:为TRUE则切换大写状态,否则切换小写状态

 */

 VOID MySetKeyBig(BOOL big = FALSE);

 /*

     模拟键盘按键，支持大小写

     str:需要按出的字符串

 */

 VOID MyAnalogKey(char *str);

 int main(void)

 {

     // 当程序运行1.5s时再执行模拟按键，以便选择需要操作的窗口

     Sleep();

     MyAnalogKey("Love life,Love BiaoGe.0123456789");

     system("pause");

     return ;

 }

 VOID MySetKeyBig(BOOL big)

 {

     // 判断键盘CapsLock键是否开启状态,开启状态则为大写,否则为小写

     if (GetKeyState(VK_CAPITAL))

     {

         // 如果当前键盘状态为大写,要求改小写,则模拟按键CapsLock切换状态

         if (!big)

         {

             keybd_event(VK_CAPITAL, NULL, KEYEVENTF_EXTENDEDKEY | , NULL);

             keybd_event(VK_CAPITAL, NULL, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, NULL);

         }

     }

     else

     {

         // 如果当前键盘状态为小写,要求改大写,则模拟按键CapsLock切换状态

         if (big)

         {

             keybd_event(VK_CAPITAL, NULL, KEYEVENTF_EXTENDEDKEY | , NULL);

             keybd_event(VK_CAPITAL, NULL, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, NULL);

         }

     }

 }

 VOID MyAnalogKey(char *str)

 {

     int iLen = ;

     char *tmp = NULL;

     INPUT *keys = NULL;

     BOOL bOldState = FALSE;

     // 保存此操作前的键盘状态

     bOldState = (BOOL)GetKeyState(VK_CAPITAL);

     iLen = lstrlen(str);

     tmp = (char *)malloc(iLen);

     memmove(tmp, str, iLen);

     for (int i = ; i < iLen; i++)

     {

         // 某些符号非直属键盘按键,这里只过滤转换两个,以后用到其它字符自行添加过滤

         if (tmp[i] == ' ')

         {

             // 产生一个击键消息步骤:按下->抬起

             keybd_event(VK_SPACE, NULL, KEYEVENTF_EXTENDEDKEY | , NULL);

             keybd_event(VK_SPACE, NULL, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, NULL);

         }

         else if (tmp[i] == ',')

         {

             keybd_event(VK_OEM_COMMA, NULL, KEYEVENTF_EXTENDEDKEY | , NULL);

             keybd_event(VK_OEM_COMMA, NULL, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, NULL);

         }

         else if (tmp[i] >= 'a' && tmp[i] <= 'z')

         { // 根据字符大小写切换键盘大小写状态

             MySetKeyBig();

             // keybd_event只识别大写

             keybd_event((BYTE)tmp[i]-, NULL, KEYEVENTF_EXTENDEDKEY | , NULL);

             keybd_event((BYTE)tmp[i]-, NULL, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, NULL);

         }

         else if ((tmp[i] >= 'A' && tmp[i] <= 'Z') || (tmp[i] >= '' && tmp[i] <= ''))

         {

             MySetKeyBig();

             keybd_event((BYTE)tmp[i], NULL, KEYEVENTF_EXTENDEDKEY | , NULL);

             keybd_event((BYTE)tmp[i], NULL, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, NULL);

         }

         else

         {

             keybd_event((BYTE)tmp[i]+, NULL, KEYEVENTF_EXTENDEDKEY | , NULL);

             keybd_event((BYTE)tmp[i]+, NULL, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, NULL);

         }

     }

     // 恢复此操作之前的键盘状态

     MySetKeyBig(bOldState);

     free(tmp);

 }