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MsiGetMode function (msiquery.h)

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The MsiGetMode function is used to determine whether the installer is currently running in a specified mode, as listed in the table. The function returns a Boolean value of TRUE or FALSE, indicating whether the specific property passed into the function is currently set (TRUE) or not set (FALSE).

Syntax

BOOL MsiGetMode(
  [in] MSIHANDLE  hInstall,
  [in] MSIRUNMODE eRunMode
);

Parameters

[in] hInstall

Handle to the installation provided to a DLL custom action or obtained through MsiOpenPackage, MsiOpenPackageEx, or MsiOpenProduct.

[in] eRunMode

Specifies the run mode. This parameter must have one of the following values.

Value Meaning
MSIRUNMODE_ADMIN
 The administrative mode is installing, or the product is installing.
MSIRUNMODE_ADVERTISE
 The advertisements are installing or the product is installing or updating.
MSIRUNMODE_MAINTENANCE
 An existing installation is being modified or there is a new installation.
MSIRUNMODE_ROLLBACKENABLED
 Rollback is enabled.
MSIRUNMODE_LOGENABLED
 The log file is active. It was enabled prior to the installation session.
MSIRUNMODE_OPERATIONS
 Execute operations are in the determination phase.
MSIRUNMODE_REBOOTATEND
 A reboot is necessary after a successful installation (settable).
MSIRUNMODE_REBOOTNOW
 A reboot is necessary to continue the installation (settable).
MSIRUNMODE_CABINET
 Files from cabinets and Media table files are installing.
MSIRUNMODE_SOURCESHORTNAMES
 The source LongFileNames is suppressed through the PID_MSISOURCE summary property.
MSIRUNMODE_TARGETSHORTNAMES
 The target LongFileNames is suppressed through the SHORTFILENAMES property.
MSIRUNMODE_RESERVED11
 Reserved for future use.
MSIRUNMODE_WINDOWS9X
 The operating system is a 9x version.
MSIRUNMODE_ZAWENABLED
 The operating system supports demand installation.
MSIRUNMODE_RESERVED14
 Reserved for future use.
MSIRUNMODE_RESERVED15
 Reserved for future use.
MSIRUNMODE_SCHEDULED
 A custom action called from install script execution.
MSIRUNMODE_ROLLBACK
 A custom action called from rollback execution script.
MSIRUNMODE_COMMIT
 A custom action called from commit execution script.

Return value

TRUE indicates the specific property passed into the function is currently set.

FALSE indicates the specific property passed into the function is currently not set.

Remarks

Note that not all the run mode values of iRunMode are available when calling MsiGetMode from a deferred custom action. For details, see Obtaining Context Information for Deferred Execution Custom Actions.

Requirements

Requirement Value
Minimum supported client Windows Installer 5.0 on Windows Server 2012, Windows 8, Windows Server 2008 R2 or Windows 7. Windows Installer 4.0 or Windows Installer 4.5 on Windows Server 2008 or Windows Vista. Windows Installer on Windows Server 2003 or Windows XP
Target Platform Windows
Header msiquery.h
Library Msi.lib
DLL Msi.dll

See also

Installer State Access Functions