Plug-in Reference — Messages to Plug-ins — EP_GET_MASK

# EP_GET_MASK

Retrieves mask color for the plug-in button on a toolbar.

EP_GET_MASK

hwnd = hwndParent;

wParam = flags;

lParam = 0;

## Parameters

hwndParent

The window handle of the EmEditor frame window.

flags

Specifies the bitmap color depth for a bitmap to retrieve.

Value | Meaning
--- | ---
BITMAP_24BIT_COLOR | 24bit color (true color) bitmap
BITMAP_256_COLOR | 256 color bitmap

## Return Values

You must return a mask color for the plug-in button on a toolbar as an RGB( r, g, b ) value. A mask color on the bitmap will be replaced with the background color of a toolbar. A mask color for a large bitmap must be the same as a mask color for a small bitmap. Currently, you cannot specify a mask color for 16 color bitmaps. If the return value is zero, EmEditor will use RGB(192,192,192) as a default mask color.