SAMPLE: Adding and Removing Caption of a Window

The information in this article applies to:

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

SUMMARY

NOTITLE is a file in the Microsoft Software Library that demonstrates adding and removing the title (caption) of a window.

Download NOTITLE.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 NOTITLE.EXE (size: 21939 bytes) 
  

• Internet (anonymous FTP)

        ftp ftp.microsoft.com
        Change to the \SOFTLIB\MSLFILES directory
        Get NOTITLE.EXE (size: 21939 bytes) 
  

MORE INFORMATION

In the NOTITLE sample, when the window has a caption and the user selects NoTitle from the main menu, the caption is removed. When the user double- clicks the window without a caption by using the left mouse button, the caption is added to the window.

NOTITLE removes the caption by performing the following five steps:

1. Removes the menu from the window by calling the SetMenu() function with NULL as the hMenu parameter.

2. Retrieves the current window style by calling GetWindowLong with GWL_STYLE as the nIndex parameter.

3. Removes the caption bit.

4. Calls SetWindowLong() with GWL_STYLE to change the style of the window.

5. Calls InvalidateRect() to instruct the application to redraw the window.

1. Adds the menu to the window by calling the SetMenu() function with the menu handle as the hMenu parameter.

2. Retrieves the current window style by calling GetWindowLong() with GWL_STYLE as the nIndex parameter.

3. Adds the caption bit.

4. Calls SetWindowLong() with GWL_STYLE to change the style of the window.

5. Calls InvalidateRect() to instruct the application to redraw the window.