SendInput代替了keybd_event

SendInput比keybd_event要方便多了，可以支持发送中文。

#include <atlconv.h> 

#pragma comment(lib,"User32.lib")
#pragma comment(lib,"shlwapi.lib")

void SendAscii(wchar_t data, BOOL shift)
{
	INPUT input[2];
	memset(input, 0, 2 * sizeof(INPUT));

	if (shift)
	{
		input[0].type = INPUT_KEYBOARD;
		input[0].ki.wVk = VK_SHIFT;
		SendInput(1, input, sizeof(INPUT));
	}

	input[0].type = INPUT_KEYBOARD;
	input[0].ki.wVk = data;

	input[1].type = INPUT_KEYBOARD;
	input[1].ki.wVk = data;
	input[1].ki.dwFlags = KEYEVENTF_KEYUP;

	SendInput(2, input, sizeof(INPUT));

	if (shift)
	{
		input[0].type = INPUT_KEYBOARD;
		input[0].ki.wVk = VK_SHIFT;
		input[0].ki.dwFlags = KEYEVENTF_KEYUP;
		SendInput(1, input, sizeof(INPUT)); 
	}
}


void SendUnicode(wchar_t data)
{
	INPUT input[2];
	memset(input, 0, 2 * sizeof(INPUT));

	input[0].type = INPUT_KEYBOARD;
	input[0].ki.wVk = 0;
	input[0].ki.wScan = data;
	input[0].ki.dwFlags = 0x4;//KEYEVENTF_UNICODE;

	input[1].type = INPUT_KEYBOARD;
	input[1].ki.wVk = 0;
	input[1].ki.wScan = data;
	input[1].ki.dwFlags = KEYEVENTF_KEYUP | 0x4;//KEYEVENTF_UNICODE;

	SendInput(2, input, sizeof(INPUT));
}

//为方便使用，下面这个函数包装了前两个函数。
void SendKeys(TCHAR *strMsg)
{
	short vk;
	BOOL shift;

	USES_CONVERSION;
	wchar_t* data = T2W(strMsg);
	int len = wcslen(data);

	for(int i=0;i<len;i++)
	{
		if (data[i]>=0 && data[i]<256) //ascii字符
		{
			vk = VkKeyScanW(data[i]);

			if (vk == -1)
			{
				SendUnicode(data[i]);
			}
			else
			{
				if (vk < 0)
				{
					vk = ~vk + 0x1;
				}

				shift = vk >> 8 & 0x1;

				if (GetKeyState(VK_CAPITAL) & 0x1)
				{
					if (data[i]>='a' && data[i]<='z' || data[i]>='A' && data[i]<='Z')
					{
						shift = !shift;
					}
				}

				SendAscii(vk & 0xFF, shift);
			}
		}
		else //unicode字符
		{
			SendUnicode(data[i]);
		}
	}
}

int _tmain(int argc, _TCHAR* argv[])
{

	Sleep(5000);
	SendKeys(L"Sysprogram 测试中文");

	return 0;
}