Customizing an Appointment Item's Background Color

4/8/2010

You can customize an Appointment item's background color for Calendar Day, Agenda, and Week Views, by creating the following two registry keys:

[HKLM\System\PimSources\<SourceID>]
   "Customizations" = REG_DWORD:PIMSRC_CUSTOM_APPOINTMENTS_COLORS
   "Type" = REG_DWORD:PIMSRC_TYPE_APPOINTMENTS

[HKLM\System\PimSources\<SourceID>\Colors]
   "1" = REG_DWORD:<RGB value>                // A COLORREF structure that describes a 32-bit RGB color.

Remarks

The value of <SourceID> in this registry key is the same value that you use for the Source ID for this customization. Appointment items tagged with this value will render with this customization. For information on how to choose the Source ID value, see Customizing the PIM User Experience by Using Source Providers.

The Colors key value "1" corresponds to the PIMSRC_COLOR enumeration value PIMSRC_COLOR_APPOINTMENTS_BACKGROUND. When you write code to access this registry key value, you can use the PIMSRC_COLOR constant as the name of the key value.

The color value is a COLORREF structure that describes as 32-bit RGB color. When specifying an explicit RGB color, the COLORREF value has the following hexadecimal form.

0x00bbggrr

The low-order byte contains a value for the relative intensity of red, the second byte contains a value for green, and the third byte contains a value for blue. The high-order byte must be zero.

The maximum value for a single byte is 0xFF. To create a COLORREF color value, use the RGB macro.

See Also

Reference

Customizing the PIM User Experience by Using Source Providers
PIMSRC_COLOR
Source Provider Customization Type Flags
Source Provider PIM Type Ownership Flags
IPimSrcContactListIcon::Paint
IPimSrcContactSummaryCard::Display
Pocket Outlook Object Model Interfaces

Other Resources

COLORREF
Register a Source Provider
Pocket Outlook Object Model Enumerations