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**UseCustomTheme**( <;//UseOSTheme//> )

| //UseOSTheme// | A BYTE used to determine if the active menu style theme is using colors from the operating system active theme. |

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**UseCustomTheme** is used to allow a menu style color theme to use all or part of the default operating system settings. When TRUE, any color or element not explicitly set by the active theme will use default setting by the operating system.

This method is overloaded. When the //UseOSTheme// parameter is omitted, **UseCustomTheme** returns TRUE (1) if the operating system's colors and settings are available for use. It does this by simply returning the value of the **UseCustomTheme** MenuStyle interface (usually set by the //UseOSTheme// parameter).

**Implementation:**

The **UseCustomTheme** method is used when applying any default style supported by the template interface. If the theme is 'Default', the method is set to FALSE. Otherwise, all other built-in menu styles supported by the templates have **UseCustomTheme **set to TRUE.

**Return Value (when UseOSTheme parameter is omitted):**     BYTE

**Example:**

**  CODE**

**  IF NOT SELF.InitMenuInterface()**

**   RETURN**

**  END**

**  IF UPPER(pTheme) = 'OFF'**

**   IF SELF.ForceTheme**

**    SELF.IgnoreWindowsTheme(FALSE)**

**    SELF.SetDefaultThemeValues()**

**    RETURN**

**   ELSE**

**    SELF.UseCustomTheme(FALSE)**

**    RETURN**

**   END**

**  END**

**  IF UPPER(pTheme) = 'DEFAULT'**

**   SELF.IgnoreWindowsTheme(FALSE)**

**   SELF.SetDefaultThemeValues()**

**   RETURN**

**  END**

** ****SELF.UseCustomTheme(TRUE)**

**  SELF.SetDefaultThemeValues()**

**  SELF.IgnoreWindowsTheme(TRUE)**

**  CASE(UPPER(pTheme))**

**  OF 'AUTO'**

**    SELF.SetImageBar(TRUE)**

**    SELF.IgnoreWindowsTheme(FALSE)**

**    SELF.SetThemeColors()**

**  END**

**See Also:** [[setcustomthemecolors set default menu colors and indicators .htm|SetCustomThemeColors(Set Custom Menu Colors and Indicators)]]