SAMPLE: Code Demonstrates Creating Dialog Box in DLL

• Microsoft Windows Software Development Kit (SDK) for Windows versions 3.0 and 3.1

DLLDLG is a file in the Microsoft Software Library that demonstrates creating a dialog box in a dynamic-link library (DLL). The DLL contains a routine that calls the DialogBox function. After the user types some text into an edit control in the dialog box and chooses the OK button, the routine calls the MessageBox() function to display the text.

Because a DLL has only one instance, it is not necessary to call the MakeProcInstance() function for the dialog box procedure. The DLLDLG sample demonstrates this by specifying the dialog box procedure's name in the call to the DialogBox() function.

The DialogBox() function uses the value of its hInstance parameter to locate the dialog box's resource template. For this reason, the hInstance value must point to the module that contains the template. For the DLLDLG sample, the hInstance value passed to the DialogBox() function is the value of the hInstance parameter passed to LibMain().

Download DLLDLG.EXE, a self-extracting file, from the Microsoft Software Library (MSL) on the following services:

• Microsoft Download Service (MSDL)

        Dial (206) 936-6735 to connect to MSDL
        Download DLLDLG.EXE (size: 32491 bytes) 
  

• Internet (anonymous FTP)

        ftp ftp.microsoft.com
        Change to the \SOFTLIB\MSLFILES directory
        Get DLLDLG.EXE (size: 32491 bytes)