Subclassing and Hooking with Visual Basic

Name

CHOOSECOLOR

Synopsis

Used to define the Color common dialog box when it is created:

Public Type CHOOSECOLOR
        lStructSize As Long       
        hwndOwner As Long              
        hInstance As Long              
        rgbResult As Long              
        lpCustColors As Long       
        flags As Long               
        lCustData As Long               
        lpfnHook As Long              
        lpTemplateName As long       
End Type

Structure Members

lStructSize

Size of this structure.

hwndOwner

Owning window.

hInstance

The instance handle of the object that contains the dialog resource. You usually set this equal to the App.hInstance property.

rgbResult

User-selected color returned to the application.

lpCustColors

Pointer to array of COLORREF structures.

flags

Flags describing this common dialog box. You must set the CC_ENABLETEMPLATE and CC_ENABLEHOOK flags to use a modified template and a dialog hook function.

lCustData

Application-defined data passed in to the hook.

lpfnHook

A pointer to the developer-defined dialog hook function.

lpTemplateName

The ID of the modified dialog resource.