EzDefineDialog Example

InstallShield 2024 » InstallScript Language Reference

Note:To call this function in a Basic MSI setup, you must first create a custom action for the entry-point function, execute the custom action in a sequence or as the result of a dialog's control event, and then build the release.

/*--------------------------------------------------------------*\

*

* InstallShield Example Script

*

* Demonstrates the EzDefineDialog function.

*

* This script opens a simple custom dialog that displays

* a bitmap. The dialog can be closed with any of three

* buttons: Back, Next, or Cancel.

*

* The "custom" dialog used in this script is actually the

* InstallShield Sd dialog that is displayed by the built-in

* function SdBitmap. Because this dialog is stored in

* the file _isres.dll, which is already compressed in

* the installation, it can be used in a script as a custom

* dialog.

*

* In order to use this custom dialog, the script first defines

* it by calling EzDefineDialog. It then displays the dialog

* and gets dialog events by calling WaitOnDialog. When an

* event ends dialog processing, EndDialog is called to close

* the dialog. Then the dialog is released from memory by

* a call to ReleaseDialog.

*

\*--------------------------------------------------------------*/

 

// Dialog and control IDs.

#define RES_DIALOG_ID     12027   // ID of dialog itself

#define RES_PBUT_NEXT         1   // ID of Next button

#define RES_PBUT_CANCEL       9   // ID of Cancel button

#define RES_PBUT_BACK        12   // ID of Back button

 

// Include Ifx.h for built-in InstallScript function prototypes.

#include "Ifx.h"

 

export prototype ExFn_EzDefineDialog(HWND);

 

function ExFn_EzDefineDialog(hMSI)

    STRING  szDialogName, szDLLName, szDialog;

    NUMBER  nDialog, nResult, nCmdValue;

    BOOL    bDone;

    HWND    hInstance, hwndParent, hwndDlg;

begin

 

    // Specify a name to identify the custom dialog in this installation.

    szDialogName = "CustomDialog";

 

    // Define the dialog.  Pass a null string in the second parameter

    // to get the dialog from _isuser.dll or _isres.dll.  Pass a null

    // string in the third parameter because the dialog is identified

    // by its ID in the fourth parameter.

    nResult = EzDefineDialog (szDialogName, "", "", RES_DIALOG_ID);

 

    if (nResult < 0) then

        // Report an error; then terminate.

        MessageBox ("Error in defining dialog", SEVERE);

        abort;

    endif;

 

    // Initialize the indicator used to control the while loop.

    bDone = FALSE;

 

    // Loop until done.

    repeat

 

        // Display the dialog and return the next dialog event.

        nCmdValue = WaitOnDialog(szDialogName);

 

        // Respond to the event.

        switch (nCmdValue)

            case DLG_CLOSE:

                // The user clicked the window's Close button.

                Do (EXIT);

            case DLG_ERR:

                MessageBox ("Unable to display dialog. Setup canceled.", SEVERE);

                abort;

            case DLG_INIT:

                // Initialize the back, next, and cancel button enable/disable states

                // for this dialog and replace %P, %VS, %VI with

                // IFX_PRODUCT_DISPLAY_NAME, IFX_PRODUCT_DISPLAY_VERSION, and

                // IFX_INSTALLED_DISPLAY_VERSION, respectively, on control IDs 700-724 and 202.

                hwndDlg = CmdGetHwndDlg(szDialogName);

                SdGeneralInit(szDialogName, hwndDlg, 0, "");

            case RES_PBUT_CANCEL:

                // The user clicked the Cancel button.

                Do (EXIT);

            case RES_PBUT_NEXT:

                bDone = TRUE;

            case RES_PBUT_BACK:

                bDone = TRUE;

            if (SdIsStdButton( nCmdValue ) && SdDoStdButton( nCmdValue )) then

                bDone = TRUE;

            endif;

        endswitch;

 

    until bDone;

 

    // Close the dialog.

    EndDialog (szDialogName);

 

    // Free the dialog from memory.

    ReleaseDialog (szDialogName);

 

end;