How To Easily Fix The Installshield 2012 Msigetproperty Example

How To Easily Fix The Installshield 2012 Msigetproperty Example

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    In some cases, your computer may display an error code with an example message installshield 2012 msigetproperty. This error can have several causes.

    installshield 2012 msigetproperty example

    Hmm, I don’t understand what’s going on. I will send it to a man or a woman for examination. For now, here’s all the applicable content from the Knowledge Base article:

    Behavior changes to support some MSI APIs called InstallScript in custom actions. The InstallScript website was found to call the Windows Installer API, such as MsiGetProperty. The engine now calls the Windows Installer API directly, rather than using the wrapper APIs that call the Windows Installer API on devices. This change was made to address issues with buffer management and buffer length and width. It applies to all new custom projects that you create in InstallShield 2012, as well as projects that you have upgraded from previous copies of InstallShield to InstallShield 2012.

    Due in part to this change, you can use the MSI installation process passed into the custom action function since all Windows Installer APIs require installation. Previously, the descriptor was only processed by the InstallScript engine and could not actually be passed to the Windows Installer APIs.

    BAs a result of this change, all Windows Installer APIs that require you to specify the buffer capacity no longer work, even if you cannot simply specify the buffer size. Note that 0 is not a valid size; So make sure your code is not passing a perfect zero size value to the buffer.

    If you have strong custom InstallScript actions that invoke Windows Installer, make sure the API has a sufficient buffer size; Otherwise, unexpected results may occur.

    In the following example, the system shows how to get the value associated with the binding of the Windows Installer property value in InstallScript, and optionally increase the buffer specification.

     Prototype STRING MyGetProperty (HWND, STRING); 
    ///////////////////////////////// // //////////// //////////////////////////////////////////////// // /////
    // MyGetProperty
    // Returns the MSI string value
    // Input parameters:
    // hMSIHandle: handle of the current MSI database execution
    / / szPropertyName: Name of all properties to get
    // Output:
    // A character string with the value of the property
    ///////// //////// // // / /// //////////////////////////////////////// // // /// / ///////////////

    STRING function MyGetProperty (hMSIHandle, szPropertyName)

    NUMBER nvBuf, nResult;
    STRING szReturn;

    // Get the measurement of the property value szReturn = "";

    nResult = MsiGetProperty (hMSIHandle, szPropertyName, szReturn, nvBuf);

    if we assume that (ERROR_MORE_DATA = = nResult), then

    nvBuf = nvBuf + 1; // Increase the measurement buffer to break out of zero

    // Get the property value

    nResult = MsiGetProperty (hMSIHandle, szPropertyName, szReturn, nvBuf);

    if (nResult! = ERROR_SUCCESS) then

    szReturn = "";
    king szReturn;

    Note that in many cases, when a script has been posted,if (ERROR_MORE_DATA == nResult) then togetherif (ERROR_MORE_DATA == nResult) thenthere may be an unexpected return.

    Project â € This detail applies to the following project styles:

    Windows Installer properties can contain useful information about the product, configuration, company system, and user. In particular, thanks to MsiGetProperty and MsiSetProperty, you can interact with these properties in our Instant Custom InstallScript Action.

    Note • Please note that MsiGetProperty and MsiSetProperty cannot be usedfor the deferred custom install script steps that do not have access to this active .msi database and of course do not recognize the Windows Properties Installer. access the information that was recorded in the production script.

    The next circumstance gets the username from my Windows Installer installation package, validates the rate, allows the user to change it, and then usually writes the new value back to the database.

    Note • You may need to specify the correct buffer size if the property transaction is longer than 1024 characters. For an example of how to write code suitable for this scenario, see Behavior Change Consistent with Certain Called MSI APIs. InstallScript Custom Actions in the “InstallShield 2011 or Earlier Update” project theme.

    nAnswer means AskYesNo (“Your name is saved as” +

    installshield 2012 msigetproperty example

    AskText (“Enter name saved as” +

    Also, access and configure Windows Installer properties using custom actions for deferred, committed, and rolling back actions.

    Working with Windows Installer and Advanced UI or Suite / Advanced UI Properties