PRB: Vertical Bars Displayed in Message Box, Control Text

ID Number: Q84900

3.10

WINDOWS

Summary:

SYMPTOMS

When an application runs under Windows 3.0, text in a message box

or in a child-window control appears on two lines, as desired.

However, under Windows 3.1, the same text appears as one line with

two vertical bars at the position where the line break should

appear.

CAUSE

The character sequence "\n\r" was used to separate the two lines of

text.

RESOLUTION

Modify the text to use the character sequence "\r\n" to break lines

of text.

More Information:

In an application developed for the Windows environment, various text

strings can contain an embedded carriage return-linefeed pair to

display the text on two separate lines. For example, an application

can send the following message to a multiline edit control in a dialog

box to display the string "This is a test" on two lines with a break

between the words "a" and "test":

SetDlgItemText(hDlg, IDC_MEDIT, (LPSTR)"This is a\r\ntest."));

Under Windows 3.0, both the "\r\n" and "\n\r" strings create a new

line in the output text. However, under Windows 3.1, only the "\r\n"

string creates a new line in the output. The "\n\r" string creates the

two vertical bars discussed above.

Additional reference words: 3.00 3.10 static