一、窗口全屏显示，去掉任务栏
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//全屏显示
//隐藏HHTaskBar窗口代码如下:
HWND
hTaskBar = ::FindWindow(TEXT(
"HHTaskBar"
), NULL);
if
(hTaskBar != NULL)
{
::EnableWindow(hTaskBar, FALSE);
::ShowWindow(hTaskBar, SW_HIDE);
}
int
iFullWidth = GetSystemMetrics(SM_CXSCREEN);
int
iFullHeight = GetSystemMetrics(SM_CYSCREEN);
::SetWindowPos(
this
->m_hWnd, HWND_TOPMOST, 0, 0, iFullWidth, iFullHeight,
SWP_NOOWNERZORDER|SWP_SHOWWINDOW);
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二、获取当前程序路径
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CString CscaleweightDlg::GetAppllicationPath()
{
WCHAR
buff[255]={0};
::GetModuleFileName(0,buff,255);
CString strAppFullName;
strAppFullName.Format(_T(
"%s"
),buff);
CString strAppPath = _T(
""
);
strAppPath = strAppFullName.Left(strAppFullName.ReverseFind(
'\\'
)+1);
return
strAppPath;
}
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三、加载字库
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//加载字体
CString strFontPath = GetAppllicationPath()+_T(
"msyh.ttf"
);
if
(NULL != AddFontResource(strFontPath))
{
::SendMessage( HWND_BROADCAST, WM_FONTCHANGE, 0, 0);
}
else
{
AfxMessageBox(L
"字体加载失败"
);
}
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程序退出时，卸载字库
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CString strFontPath = GetAppllicationPath()+_T(
"msyh.ttf"
);
if
(RemoveFontResource(strFontPath))
{
::SendMessage(HWND_BROADCAST, WM_FONTCHANGE, 0, 0);
}
else
AfxMessageBox(L
"Failed to UNLOAD font!"
);
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四、加载位图用LoadImage无效
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HBITMAP
hBitmap = (
HBITMAP
)::SHLoadDIBitmap(szBitmapFile);
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五、要以共享MFC的DLL库的方式发布程序，须将如下目录中DLL全部复制到目标机器上。
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C:\Program Files (x86)\Microsoft Visual Studio 8\VC\ce\Dll\armv4i
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六、wchar_t*转char*
如,sCaption为 LPCTSTR类型字符串,要转成char *字符串,如下:
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int
num = WideCharToMultiByte(CP_OEMCP, NULL, sCaption, -1, NULL, 0, NULL, FALSE);
char
*pChar =
new
char
[num];
WideCharToMultiByte(CP_OEMCP, NULL, sCaption, -1, pChar, num, NULL, FALSE);
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七、字体平滑，需要修改注册表
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HKEY_LOCAL_MACHINE\\System\\GDI\\ClearType
Default=2
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八、不关闭屏幕，常期显示工作界面
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//电源参数请求更新
HANDLE
hevReloadActivityTimeouts = OpenEvent(EVENT_ALL_ACCESS, FALSE,
_T(
"PowerManager/ReloadActivityTimeouts"
));
if
(hevReloadActivityTimeouts)
{
SetEvent(hevReloadActivityTimeouts);
CloseHandle(hevReloadActivityTimeouts);
}
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同时，在注册表中也要修改超时设置。
九、Sqlite数据库读写
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void
CSimpleModeData::TempTableWrite(CString CarNo,CString strWeight,CString GoodsName,
CString Time)
{
CString str ;
str.Format(_T("insert into SimpleModeTempTable(CarNo,GoodsName,Weight,Time)\
values(
'%s'
,
'%s'
,
'%s'
,
'%s'
)"),CarNo,strWeight,GoodsName,
Time);
TRACE(str);
m_sqliteDB.execQuery(str);
}
BOOL
CSimpleModeData::TempTableRead(CString strCarNo)
{
CString str ;
str.Format(_T(
"select * from SimpleModeTempTable where CarNo = '%s'"
));
TRACE(str);
CppSQLite3Query query = m_sqliteDB.execQuery(str);
if
(!query.eof())
{
wcscpy_s(CGlobal::g_TempTable.CarNo,20,query.fieldValue(1));
wcscpy_s(CGlobal::g_TempTable.GoodsName,20 ,query.fieldValue(2));
wcscpy_s(CGlobal::g_TempTable.Weight,20,query.fieldValue(3));
return
TRUE;
}
query.finalize();
return
FALSE;
}
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十、软件重启
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#include "windows.h"
#include "winioctl.h"
#define POWER_STATE_RESET (DWORD)(0x00800000)
#define POWER_FORCE (DWORD)(0x00001000)
extern
"C"
__declspec
(
dllimport
)
DWORD
SetSystemPowerState(
LPCWSTR
pwsSystemState,
DWORD
StateFlags,
DWORD
Options);
void
CtestDlg::OnBnClickedButton2()
{
SetSystemPowerState(NULL, POWER_STATE_RESET, POWER_FORCE);
}
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十一、字符串转浮点数
_tstof在WinCE中未实现，需要自己实现。如果转成double型可以如下：
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double
StringToDouble(
LPCTSTR
lpszSrc)
{
TCHAR
* endptr;
return
_tcstod(lpszSrc, &endptr);
}
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本文转自Chinayu201451CTO博客，原文链接：http://blog.51cto.com/9233403/197230
，如需转载请自行联系原作者
