UINT GetDlgItemInt( int nID, BOOL* lpTrans = NULL, BOOL bSigned = TRUE ) const;
nID
Specifies the integer identifier of the dialog-box item to be translated.
lpTrans
Points to the Boolean variable that is to receive the translated flag.
bSigned
Specifies whether the value to be retrieved is signed.
Translates the text of the specified control in the given dialog box into an integer value.
Retrieves the text of the control identified by nID. It translates the text by stripping any extra spaces at the beginning of the text and converting decimal digits, stopping the translation when it reaches the end of the text or encounters any nonnumeric character.
If bSigned is TRUE, GetDlgItemInt checks for a minus sign (–) at the beginning of the text and translates the text into a signed number. Otherwise, it creates an unsigned value.
Sends a WM_GETTEXT message to the control.
Specifies the translated value of the dialog-box item text. Since 0 is a valid return value, lpTrans must be used to detect errors. If a signed return value is desired, cast it as an int type.
Zero if the translated number is greater than 32,767 (for signed numbers) or 65,535 (for unsigned).
When errors occur, such as encountering nonnumeric characters and exceeding the given maximum, GetDlgItemInt copies 0 to the location pointed to by lpTrans. If there are no errors, lpTrans receives a nonzero value. If lpTrans is NULL, GetDlgItemInt does not warn about errors.
CWnd::GetDlgItemText, ::GetDlgItemInt