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Hello.

I do not understand CExtNCW how to use.

Please teach a merit to use CExtNCW .

The CExtNCW template class adds a themed caption and borders to a windows It implements a custom non-client area. Of course, the non client area is themed only if the currently installed paint manager supports this feature.

The CExtNCW class is a template decorator class. So, if you have the main frame or dialog declared as follows:

class CMainFrameOrDialog : public CExtNCW < CBaseFrameOrDialog >
{
            . . .
};

Then you should replace it with the code like below:

class CMainFrameOrDialog : public CBaseFrameOrDialog
{
            . . .
};

You should also replace the CBaseFrameOrDialog class type with the CExtNCW < CBaseFrameOrDialog > template based type everywhere in all the source code of each method of the CMainFrameOrDialog class included explicit constructor invocations of parent class:

CMainFrameOrDialog::CMainFrameOrDialog(  . . . some parameters . . . )
: CExtNCW < CBaseFrameOrDialog > (  . . . the same parameters or some other parameters . . . )  // parent class constructor invocation
{
            . . . constructor body . . .
}

You should leave the BEGIN_MESSAGE_MAP( CMainFrameOrDialog, CBaseFrameOrDialog ) as is without any changes - this is the single exception.

Hello.

Where does a difference of the display occur when I do not use this decoration class?