IsEmpty Example
InstallShield 2022 ยป InstallScript Language Reference
/*--------------------------------------------------------------*\
*
* InstallShield Example Script
*
* Demonstrates the IsEmpty function.
*
\*--------------------------------------------------------------*/
function OnBegin()
VARIANT vVariant;
BOOL bEmpty;
STRING szString;
begin
bEmpty = IsEmpty ( vVariant );
/* The message "vVariant is empty." is displayed. */
if bEmpty then
MessageBox ( "vVariant is empty." , INFORMATION );
else
MessageBox ( "vVariant is not empty." , INFORMATION );
endif;
/* Initialize vVariant. */
vVariant = szString;
bEmpty = IsEmpty ( vVariant );
/* The message "vVariant is not empty." is displayed. */
if bEmpty then
MessageBox ( "vVariant is empty." , INFORMATION );
else
MessageBox ( "vVariant is not empty." , INFORMATION );
endif;
/* Terminate example setup script. */
abort;
end;