Add Color Property page in ActiveX control

Create the ActiveX Control project using MFC ActiveX Control Wizard.
Open the XXXCtrl.cpp file.
Include the following header file.

#include <\msstkppg.h>

Add the property page ID. See the code below

BEGIN_PROPPAGEIDS(CXXXCtrl, 1)

PROPPAGEID(CLSID_StockColorPage);

END_PROPPAGEIDS(CXXXCtrl) ;

Click the class wizard and add the Forecolor and Backcolor stock property availabe in Automation option.

Add the Message map for both Backcolor and Forecolor. This message map will execute when you change the background color in the color palette. Get the RGB value.

void CXXXCtrl::OnBackColorChanged()
{
COLORREF nBackColor = TranslateColor(GetBackColor()) ;
m_nBackRColor = GetRValue(nBackColor) ;
m_nBackGColor = GetGValue(nBackColor) ;
m_nBackBColor = GetBValue(nBackColor) ;

COleControl::OnBackColorChanged();
}

void CXXXCtrl::OnForeColorChanged()

{

COLORREF nBackColor = TranslateColor(GetForeColor()) ;

m_nForeRColor = GetRValue(nForeColor) ;

m_nForeGColor = GetGValue(nForeColor) ;

m_nForeBColor = GetBValue(nForeColor) ;

COleControl::OnForeColorChanged();

}

To set the value that we get from OnBackColorChanged and OnForeColorChanged, Add the below two lines in function called DoPropExchange.

SetForeColor(RGB(m_nForeRColor,
m_nForeGColor,m_nForeBColor));
SetBackColor(RGB(m_nBackRColor,
m_nBackGColor,m_nBackBColor));

Now run the program and you can see the color property page in the property dialog.

Code Machine

Add Color Property page in ActiveX control

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