![]() If the message is too long for one line, insert a line break by embedding newline escape characters ( \n ) at appropriate places in the string. InstallShield does not automatically break the text of the message into separate lines to fit in the message box. If you need to display a different caption, use the MessageBo圎x function. When a Windows message box style is used by the MessageBox function, the caption (title) of the message box is Install. To determine whether a particular style is supported on the operating systems that are targeted by the installation, consult the appropriate Windows SDK. Some Windows message box styles are not supported on some Windows platforms. ![]() If an InstallShield message box constant is combined with a Windows message box constant using the OR operator (|), the Windows message box constant is ignored. ![]() Windows and InstallShield message box constants cannot be used together in an installation. (For Microsoft Visual C++, most constants can be found in the Winuser.h file, which is located in the InstallShield Program Files Folder \Script\Resource folder.) The values that you need to assign to the undefined constants can generally be found in an include file that is provided with the appropriate Windows SDK or development tool. You cannot simply include the Windows.h file that is usually part of a C++ program. To use constants that are not defined in ISRTWindows.h, you must define them (using #define) in the declaration block of your installation script. To determine which constants are predefined, refer to the ISRTWindows.h file. You do not need to redefine any constants that are defined in ISRTWindows.h doing so will result in a compiler warning. This file is automatically included in your installation when you include Ifx.h in your script. ![]() Some Windows MessageBox type constants are predefined in the ISRTWindows.h file that is provided in the InstallShield Program Files Folder \Script\Isrt\Include folder. Note the following when using Windows message box constants: For more information regarding the use of Windows MessageBox types, consult the description of the MessageBox Windows API function in the appropriate Windows SDK. You cannot change the text on this button. The operating environment also generates the text for the OK button in the local language (the language that the operating system is running under). The operating environment, not the installation, determines the size and location of the message box. This function uses the Microsoft Windows API MessageBox. If the titles are blank, the title bar text for message box is the product name (from IFX_SETUP_TITLE). The titles are blank by default, unless you set them by calling SetDialogTitle before calling MessageBox. For example, if you pass INFORMATION in nType, the title Information appears in the title bar. The default title depends on the value of nType, which also indicates the icon type. The MessageBox function presents a dialog that contains a message, an icon that indicates the nature of the message (information, warning, or severe), and an OK button. Project: This information applies to the following project types: InstallShield 2015 » InstallScript Language Reference
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