{
Restrictions on
CLX and TApplication in external modules:
CLX and Qt allow only a single instance of the application object - it is
created and destroyed in the initialization and finalization sections of
QControls.pas, respectively. It is the user's responsibility when using
external modules (packages and libraries or shared objects) in their
applications to ensure that only a single instance of TApplication is
created. Please heed the following rules when mixing modules that rely on
visual
CLX:
- External libraries (.dll's/.so's) may not refer to visual
CLX units
directly or indirectly.
- If you wish to include visual
CLX code in an external library, the
external library must be a *
package* to avoid duplicate
unit
initialization and finalization.
- If your
package uses the visualclx
package, the main application must also
use it, and should not directly link in visual
CLX units.
}