Window function – userBlockWF()

Embed assigns a window to every block. Normally, Embed manages the painting of the block window with text. The Window function gives you the opportunity to put your own or third-party window as a child window of a block, or paint whatever you like in a block window, including:

      Bitmaps

      Videos

      Geometric shapes and lines

      Plots and gauges

The Window function can only be used with user-created blocks for add-on modules.

The Window function follows the naming convention for add-on block functions: Its name has the WF suffix and its data type is USER_EVENT_FUNC. For example, if the base name for block functions is Display, the following code implements block window support:

EXPORT32 LPSTR EXPORT PASCAL DisplayWF(HWND h, int msg, WPARAM arg1, LPARAM arg2)

Embed communicates with the Window function using the following messages as the second function parameter:

VSM_WF_CREATE_WINDOW

VSM_WF_DESTROY_WINDOW

VSM_WF_GET_WIDTH

VSM_WF_GET_HEIGHT

VSM_WF_PLOT_WINDOW

VSM_WF_PRINT_WINDOW/

VSM_WF_RECTANGLE

VSM_WF_REORG

VSM_WF_SELECT_WINDOW

VSM_WF_WINDOW_STYLES