#include class

[mickey]

thanks, but I worried for recursive inclusion; I already inserted "class myMainForm" in myLightDialog Class (.h); that's the .cpp; Don't I have to insert "#include <mymainform.h> there" (in the .cpp)?

[Michiel]

Yes, include mymainform.h into mylightdialog.cpp. In mydialog.h you only needed the name. In the .cpp you need the actual class (probably).

[mickey]

Yes, include mymainform.h into mylightdialog.cpp. In mydialog.h you only needed the name. In the .cpp you need the actual class (probably).

sorry but #include "mymainfrom.h" in .cpp seems necessary....don't compile with only class mymainform...
these are the errors:

myLightDialog.cpp(27): error C2027: use of undefined type 'myMainForm'
myLightDialog.cpp(27): error C2227: left of '->isEnabled' must point to class/struct/union
myLightDialog.cpp(27): error C2227: left of '->tab1' must point to class/struct/union
myLightDialog.cpp(28): error C2027: use of undefined type 'myMainForm'

myLightDialog.cpp(27): error C2027: use of undefined type 'myMainForm'
myLightDialog.cpp(27): error C2227: left of '->isEnabled' must point to class/struct/union
myLightDialog.cpp(27): error C2227: left of '->tab1' must point to class/struct/union
myLightDialog.cpp(28): error C2027: use of undefined type 'myMainForm'

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[Michiel]

Yes, it is necessary, like I said.

In the .h file you only use 'class myMainForm'. In the .cpp file you use '#include "mymainform.h"'.

This way you won't get compiler errors, and you won't have recursive inclusion (which would only have happened with '#include ...' in the .h file).