Detecting S60 platform version at run time
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Detecting S60 platform version at run time
运行时检测S60平台版本
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ID CS000933 Creation date May 2, 2008
Platform S60 3rd Edition, MR
S60 3rd Edition, FP2 Tested on devices Nokia N95 8GB
Nokia 6220 Classic
Category Symbian C++ Subcategory Files/Data
Keywords (APIs, classes, methods, functions): TFindFile, CDir, VersionInfo, VersionInfo::TPlatformVersion, TFindFile::FindWildByDir(), CDir::Sort(), VersionInfo::GetVersion()
Overview
This code snippet demonstrates how to detect the S60 platform version at run time.
The snippet presents two different methods, one for the S60 devices prior to S60 3rd Edition, FP2,
and one for devices compatible with S60 3rd Edition, FP2. The first method detects the version number from .sis files that are installed to the device.
The second method uses the Version Info API available from S60 3rd Edition, FP2 onwards.
这个代码片段显示了如何侦测S60平台版本,在运行时。
片段给出了两种方法,一个给FP2之前的S60设备,另一个给FP2兼容的设备。
第一个方法检测安装到设备上的SIS文件,第二个方法使用FP2所提供的版本信息API。
This snippet can be self-signed.
这个片段能被自签名
MMP file
The first method (using TFindFile) requires the following libraries:
LIBRARY efsrv.lib
The second method (using VersionInfo) requires the following libraries:
LIBRARY platformver.lib
Source file: Using TFindFile
#include <f32file.h> // TFindFile
// On return, aMajor and aMinor contain the highest version number found from
// the .sis file names
void GetS60PlatformVersionL(RFs& aFs, TUint& aMajor, TUint& aMinor)
{
TFindFile fileFinder = aFs;
CDir* result;
_LIT(KS60ProductIDFile, "Series60v*.sis");
_LIT(KROMInstallDir, "z://system//install//");
User::LeaveIfError(fileFinder.FindWildByDir(KS60ProductIDFile,
KROMInstallDir, result));
CleanupStack::PushL(result);
// Sort the file names so that the newest platforms are first
User::LeaveIfError(result->Sort(ESortByName | EDescending));
// Parse the version numbers from the file name (e.g. Series60v3_1.sis)
aMajor = (*result)[0].iName[9] - '0';
aMinor = (*result)[0].iName[11] - '0';
CleanupStack::PopAndDestroy(result);
}
// Connect to the file server session
RFs fsSession;
User::LeaveIfError(fsSession.Connect());
CleanupClosePushL(fsSession);
// Obtain the version number
TUint major;
TUint minor;
GetS60PlatformVersionL(fsSession, major, minor);
CleanupStack::PopAndDestroy(); // fsSession
// Display the version number
TBuf<255> buffer;
_LIT(KTxt, "Version: %d.%d");
buffer.Format(KTxt, major, minor);
CAknInformationNote* note = new (ELeave)CAknInformationNote(ETrue);
note->ExecuteLD(buffer);
Source file: Using VersionInfo
Note: This technique only applies to devices compatible with S60 3rd Edition, FP2 and onwards.
#include <versioninfo.h> // VersionInfo
// On return, aMajor and aMinor contain the version information
TInt GetS60PlatformVersionL(RFs& aFs, TUint& aMajor, TUint& aMinor)
{
VersionInfo::TPlatformVersion platformVersion;
TInt ret = VersionInfo::GetVersion(platformVersion, aFs);
if (ret == KErrNone)
{
aMajor = platformVersion.iMajorVersion;
aMinor = platformVersion.iMinorVersion;
}
return ret;
}
// Connect to the file server session
RFs fsSession;
User::LeaveIfError(fsSession.Connect());
CleanupClosePushL(fsSession);
// Obtain the version number
TUint major;
TUint minor;
User::LeaveIfError(GetS60PlatformVersionL(fsSession, major, minor));
CleanupStack::PopAndDestroy(); // fsSession
// Display the version number
TBuf<255> buffer;
_LIT(KTxt, "Version: %d.%d");
buffer.Format(KTxt, major, minor);
CAknInformationNote* note = new (ELeave)CAknInformationNote(ETrue);
note->ExecuteLD(buffer);
Postconditions
S60 platform version is shown on the display.
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