If the file version does not exist in both the source and the target files, date and time are used for comparison. This constant updates the file if the source file is newer than the target file. This constant updates the file if the source file is newer than the target file.ĬOMP_UPDATE_VERSION-Updates the files based on the file version. Otherwise, this constant is ignored.ĬOMP_UPDATE_DATE-Updates the files based on the file date and time.
You must also specify either COMP_UPDATE_DATE or COMP_UPDATE_VERSION with this constant.
If this parameter contains a null string (""), the files are copied to the directory that is specified by the system variable TARGETDIR (in InstallScript installations) or INSTALLDIR (in Basic MSI and InstallScript MSI installations). Specify the directory to which the files that are specified by szSrcFile should be copied. To check the validity of a URL, call the following: When passing a URL, do not include wildcard characters. If you pass a CGI or ASP request (for example, ""), the response is sent to the file that is specified in the szTargetPath parameter. You can specify a valid URL in this parameter. To copy multiple files, use wildcard characters in this parameter. If szSrcFile contains an unqualified file name-without path information- XCopyFile copies from the folder that is identified by the system variable SRCDIR. If the file specified is qualified-that is, if it includes a path- XCopyFile copies the file from the specified location. XCopyFile ( szSrcFile, szTargetPath, nOp ) Note: If you use unqualified file names and set values for SRCDIR and TARGETDIR when using XCopyFile, save the current values using VarSave before calling XCopyFile and then restore them using VarRestore. You can enable and disable the Cancel button using the Enable and Disable functions. Instead, the copy file operation returns a failure error code, which your script must handle by calling the appropriate event and then relaunching the copy file operation. If you do not disable the Cancel button and the end user cancels during the copy file operation, the OnCancelling event handler is not called.
Tip: It is strongly recommended that you disable the Cancel button using the Disable function before calling the XCopyFile function if the status dialog is displayed during the copy. To rename a file during a file copy operation, use the CopyFile function. To learn more, see Targeting 64-Bit Operating Systems with InstallScript Installations. It is recommended that you then enable file system redirection as soon as you have completed transferring the necessary files to WINSYSDIR64.
#XCOPY TO COMPARE FOLDERS WINDOWS#
Since some Windows functionality that could be used by the installation requires that redirection be enabled to work, Windows documentation recommends that you disable redirection only for as long as necessary. Otherwise, files being transferred to WINSYSDIR64 are incorrectly redirected to the 32-bit SysWOW64 folder. If you use this function to transfer files to WINSYSDIR64, you must first disable file system redirection using WOW64FSREDIRECTION. XCopyFile creates subdirectories on the target directory if necessary when the constant INCLUDE_SUBDIR is passed in the parameter nOp. This function can copy subdirectories as well as files. The function creates and logs the target directory if necessary. The XCopyFile function copies one or more files from a source directory to a target directory. InstallShield 2015 » InstallScript Language Reference
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