整理下最近開發時用到得一些小功能，在網上都能找得到，整理下免得以後再找麻煩。
持續添加
一、自動隱藏鼠標
//自動計時，超過5次計時隱藏鼠標
void CMyDlg::OnTimer(UINT_PTR nIDEvent)
{
// TODO: 在此添加消息處理程序代碼和/或調用默認值
switch (nIDEvent)
{
case TIMER_HIDECURSOR:
{
m_nTimeCount += 1;
if (m_nTimeCount >= 5)
{
int i = ShowCursor(FALSE); //隱藏光標
TRACE(_T("ShowCursor(FALSE)%d/n"),i);
for (int j=0; j<=i; j++)
{
ShowCursor(FALSE); //隱藏光標
}
m_nTimeCount = 0;
}
}
break;
default:
break;
}
CDialog::OnTimer(nIDEvent);
}
//在MouseMove時清空隱藏鼠標計數，並顯示
void CMyDlg::OnMouseMove(UINT nFlags, CPoint point)
{
// TODO: 在此添加消息處理程序代碼和/或調用默認值
m_nTimeCount = 0; // 隱藏鼠標事件累積清零
int i = ShowCursor(TRUE); // 顯示光標
for(int j=0;j>i;j--)
{
ShowCursor(TRUE);
}
CDialog::OnMouseMove(nFlags, point);
}
二、設置開機自動啓動
//如果希望取消wince桌面顯示，將Launch99改爲Launch50
BOOL SetAutoRun()
{
CString szKey(_T("init"));
HKEY hKey = 0;
HKEY hModuleKey; // Module key handle
//LSTATUS rc = RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKey, &hkeyFilter);
DWORD dwType, dwValueSize;
char* data = (char*)malloc(30);
memset(data, 0, 30);
LONG lResult = RegOpenKeyEx( HKEY_LOCAL_MACHINE, szKey, 0, KEY_READ, &hKey );
if (lResult == ERROR_SUCCESS)
{
TCHAR szLaunch[PATH_MAX] = {0};
GetModuleFileName(0, szLaunch, PATH_MAX);
LSTATUS rc = RegSetValueEx(
hKey, // Handle of an open key
_T("Launch99"), // Address of subkey name
(DWORD) 0, // Reserved field
REG_SZ, // Type of the key field
(PBYTE)szLaunch, // Value for the field
PATH_MAX); // Size of the field buffer
if (rc != ERROR_SUCCESS)
{
//AfxMessageBox(_T("Set path Value failed/r/n"));
return FALSE;
}
DWORD dwValue = 0x0014;
rc = RegSetValueEx(
hKey, // Handle of an open key
_T("Depend99"), // Address of subkey name
(DWORD) 0, // Reserved field
REG_BINARY, // Type of the key field
(PBYTE)(&dwValue), // Value for the field
sizeof(DWORD)); // Size of the field buffer
if (rc != ERROR_SUCCESS)
{
//AfxMessageBox(_T("Set depend Value failed/r/n"));
return FALSE;
}
RegFlushKey(HKEY_LOCAL_MACHINE);
RegCloseKey(hKey);
return TRUE;
}
else
{
return FALSE;
}
}
三、設置系統分表率（需要系統支持）
BOOL SetSystemMetrics(DWORD dwWidth, DWORD dwHeight)
{
DEVMODE dm;
memset((char*)&dm, 0, sizeof(DEVMODE));
dm.dmSize = sizeof(DEVMODE);
dm.dmPelsWidth = dwWidth;//1920
dm.dmPelsHeight = dwHeight;//1080
dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
if (DISP_CHANGE_SUCCESSFUL == ChangeDisplaySettingsEx(NULL, &dm, NULL, 0, NULL))
{
return TRUE;
}
else
{
return FALSE;
}
}
四、讀取本地IP地址（只能讀IP，子網掩碼/網關等不能讀，也不能設置，要設置需要修改註冊表信息並重啓網卡/設備）
CString GetLocalIP()
{
HOSTENT *LocalAddress;
char *Buff;
TCHAR *wBuff;
CString strReturn = _T("");
//創建新的緩衝區
Buff = new char[256];
wBuff = new TCHAR[256];
//置空緩衝區
memset(Buff, '/0', 256);
memset(wBuff, TEXT('/0'), 256*sizeof(TCHAR));
//得到本地計算機名
if (gethostname(Buff, 256) == 0)
{
//轉換成雙字節字符串
size_t convertedChars = 0;
mbstowcs_s(&convertedChars, wBuff, 256*sizeof(TCHAR),Buff, 256);
//得到本地地址
LocalAddress = gethostbyname(Buff);
//置空buff
memset(Buff, '/0', 256);
//組合本地IP地址
sprintf_s(Buff, 256, "%d.%d.%d.%d/0", LocalAddress->h_addr_list[0][0] & 0xFF,
LocalAddress->h_addr_list[0][1] & 0x00FF, LocalAddress->h_addr_list[0][2] & 0x0000FF, LocalAddress->h_addr_list[0][3] & 0x000000FF);
//置空wBuff
memset(wBuff, TEXT('/0'), 256*sizeof(TCHAR));
//轉換成雙字節字符串
mbstowcs_s(&convertedChars, wBuff, 256*sizeof(TCHAR), Buff, 256);
//設置返回值
strReturn = wBuff;
}
else
{
}
//釋放Buff緩衝區
delete[] Buff;
Buff = NULL;
//釋放wBuff緩衝區
delete[] wBuff;
wBuff = NULL;
return strReturn;
}
五、通過註冊表來實現讀取/設置網卡相關信息（IP,MASK, GATEWAY,DNS等）
BOOL SetIpAddress(CString strIp,CString strMask,CString strGateWay, CString strDNS)
{
//獲得網卡的設備名
WCHAR Names[50];
DWORD bytes;
HANDLE m_hFileHandle = CreateFile(_T("NDS0:"), 0, 0, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
(HANDLE) INVALID_HANDLE_VALUE);
if( m_hFileHandle == INVALID_HANDLE_VALUE )
{
return FALSE;
}
// Get list of adapter names
if (!DeviceIoControl(m_hFileHandle,
IOCTL_NDIS_GET_ADAPTER_NAMES,
NULL,0,
Names,MAX_PATH,&bytes,NULL))
{
return FALSE;
}
DWORD len = wcslen(Names);
Names[len] = 0;
Names[len+1] = 0;
CString strKeyName;
strKeyName.Format(_T("Comm//%s//Parms//TCPIP"),Names);
//打開註冊表對網卡IP信息對應子健進行修改
HKEY hkey;
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE,strKeyName,0,KEY_WRITE,&hkey) != ERROR_SUCCESS)
{
return FALSE;
}
DWORD value;
value = 0;
WCHAR buffer[50];
//set EnableDHCP
if(RegSetValueEx(hkey,TEXT("EnableDHCP"),0,REG_DWORD,(const unsigned char *)&value,sizeof(DWORD)) != ERROR_SUCCESS)
return FALSE;
//set dns
memset(buffer,0,100);
memcpy(buffer,strDNS.GetBuffer(0),strDNS.GetLength()*sizeof(TCHAR));
if(RegSetValueEx(hkey,TEXT("DNS"),0,REG_MULTI_SZ,(const unsigned char *)buffer, strDNS.GetLength()*2+2) != ERROR_SUCCESS)
return FALSE;
//set ip address
memset(buffer,0,100);
memcpy(buffer,strIp.GetBuffer(0),strIp.GetLength()*sizeof(TCHAR));
if(RegSetValueEx(hkey,TEXT("IpAddress"),0,REG_MULTI_SZ,(const unsigned char *)buffer, strIp.GetLength()*2+2) != ERROR_SUCCESS)
return FALSE;
//set subnet mask
memset(buffer,0,100);
memcpy(buffer,strMask.GetBuffer(0),strMask.GetLength()*sizeof(TCHAR));
if(RegSetValueEx(hkey,TEXT("SubnetMask"),0,REG_MULTI_SZ,(const unsigned char *)buffer, strMask.GetLength()*2+2) != ERROR_SUCCESS)
return FALSE;
//set gateway
memset(buffer,0,100);
memcpy(buffer,strGateWay.GetBuffer(0),strGateWay.GetLength()*sizeof(TCHAR));
if(RegSetValueEx(hkey,TEXT("DefaultGateway"),0,REG_MULTI_SZ,(const unsigned char *)buffer, strGateWay.GetLength()*2+2) != ERROR_SUCCESS)
return FALSE;
RegFlushKey(hkey);
RegCloseKey(hkey);
// 重啓網卡，不用機器熱啓動
HANDLE hNdis = CreateFile(_T("NDS0:"), 0, 0, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
(HANDLE) INVALID_HANDLE_VALUE);
if( hNdis == INVALID_HANDLE_VALUE )
{
//MessageBox(NULL,_T( "重啓網絡驅動時打開設備錯誤"),NULL,0);
return FALSE;
}
// Send the device command.
if (!DeviceIoControl( hNdis, IOCTL_NDIS_REBIND_ADAPTER,
Names, _tcslen( Names) + sizeof( TCHAR ), // buf contains the name of the
NULL, 0, NULL, NULL ) )
{
CloseHandle(hNdis);
return FALSE;
}
CloseHandle( hNdis );
return TRUE;
}
BOOL GetIpAddress(CString& strIp,CString& strMask,CString& strGateWay, CString& strDNS)
{
//獲得網卡的設備名
WCHAR Names[50];
DWORD bytes;
HANDLE m_hFileHandle = CreateFile(_T("NDS0:"), 0, 0, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
(HANDLE) INVALID_HANDLE_VALUE);
if( m_hFileHandle == INVALID_HANDLE_VALUE )
{
return FALSE;
}
// Get list of adapter names
if (!DeviceIoControl(m_hFileHandle,
IOCTL_NDIS_GET_ADAPTER_NAMES,
NULL,0,
Names,MAX_PATH,&bytes,NULL))
{
return FALSE;
}
DWORD len = wcslen(Names);
Names[len] = 0;
Names[len+1] = 0;
CString strKeyName;
strKeyName.Format(_T("Comm//%s//Parms//TCPIP"),Names);
//打開註冊表對網卡IP信息對應子健進行修改
HKEY hkey;
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE,strKeyName,0,KEY_READ,&hkey) != ERROR_SUCCESS)
{
MessageBox(NULL,TEXT("打開註冊表錯誤"),NULL,0);
return FALSE;
}
DWORD dwEnableDHCP;
TCHAR buffer[50];
DWORD dwType = 0, cbData = 0xffff;
//query EnableDHCP
if(RegQueryValueEx(hkey,TEXT("EnableDHCP"),0,&dwType,(PBYTE)&dwEnableDHCP,&cbData) != ERROR_SUCCESS)
return FALSE;
//query dns
cbData = 100;
ZeroMemory(buffer, 50*sizeof(TCHAR));
if(RegQueryValueEx(hkey,TEXT("DNS"),0,&dwType,(PBYTE)buffer, &cbData) != ERROR_SUCCESS)
return FALSE;
strDNS = buffer;
//set ip address
cbData = 100;
ZeroMemory(buffer, 50*sizeof(TCHAR));
if(RegQueryValueEx(hkey,TEXT("IpAddress"),0,&dwType,(PBYTE)buffer, &cbData) != ERROR_SUCCESS)
return FALSE;
strIp = buffer;
// //set subnet mask
cbData = 100;
ZeroMemory(buffer, 50*sizeof(TCHAR));
if(RegQueryValueEx(hkey,TEXT("SubnetMask"),0,&dwType,(PBYTE)buffer, &cbData) != ERROR_SUCCESS)
return FALSE;
strMask = buffer;
//set gateway
cbData = 100;
ZeroMemory(buffer, 50*sizeof(TCHAR));
if(RegQueryValueEx(hkey,TEXT("DefaultGateway"),0,&dwType,(PBYTE)buffer, &cbData) != ERROR_SUCCESS)
return FALSE;
strGateWay = buffer;
RegCloseKey(hkey);
return TRUE;
}
六、關閉屏幕顯示（需要驅動支持，我當前用的SDK不支持該功能）
// GDI Escapes for ExtEscape()
#define QUERYESCSUPPORT 8
#define GETVFRAMEPHYSICAL 6144
#define GETVFRAMELEN 6145
#define DBGDRIVERSTAT 6146
#define SETPOWERMANAGEMENT 6147
#define GETPOWERMANAGEMENT 6148
typedef enum _VIDEO_POWER_STATE {
VideoPowerOn = 1,
VideoPowerStandBy,
VideoPowerSuspend,
VideoPowerOff
} VIDEO_POWER_STATE, *PVIDEO_POWER_STATE;
typedef struct _VIDEO_POWER_MANAGEMENT {
ULONG Length;
ULONG DPMSVersion;
ULONG PowerState;
} VIDEO_POWER_MANAGEMENT, *PVIDEO_POWER_MANAGEMENT;
void CloseOpenScreen(boolean yes)
{
HDC gdc;
int iESC=SETPOWERMANAGEMENT;
gdc = ::GetDC(NULL);
if (ExtEscape(gdc, QUERYESCSUPPORT, sizeof(int), (LPCSTR)&iESC, 0, NULL)==0)
MessageBox(NULL,
L"Sorry, your Pocket PC does not support DisplayOff",
NULL,MB_OK);
else
{
VIDEO_POWER_MANAGEMENT vpm;
vpm.Length = sizeof(VIDEO_POWER_MANAGEMENT);
vpm.DPMSVersion = 0x0001;
// Power off the display
if (yes)
{
vpm.PowerState = VideoPowerOff;
ExtEscape(gdc, SETPOWERMANAGEMENT, vpm.Length, (LPCSTR) &vpm,
0, NULL);
}
else
{
vpm.PowerState = VideoPowerOn;
// Power on the display
ExtEscape(gdc, SETPOWERMANAGEMENT, vpm.Length, (LPCSTR) &vpm,
0, NULL);
}
::ReleaseDC(NULL, gdc);
}
}