Brew MP 1.0.2
This macro issues the drawing callback referenced by the draw handler descriptor
passed to the function in the 'pdesc' parameter. An application that overrides a
decorator's default draw routine by supplying a custom draw handler should ALWAYS
call DrawHandlerDesc_Call() within its draw routine, passing in a pointer to the
draw handler descriptor returned by IDrawDecorator_SetDraw() when the current
draw handler was initially registered. The application providing a custom draw
decorator consequently has the option of applying its own drawing operations prior
to, or after, the default draw operation, depending on the needs of that particular
Pointer to a DrawHandlerDesc data structure that contains a pointer
to the draw handler BREW should execute.
Pointer to the ICanvas object onto which the draw handler will perform
its drawing operations
Horizontal position of the left side of the draw decorator, offset
from the left side of the ICanvas object.
Vertical position of the top of the draw decorator, offset from the
top of the ICanvas object.
DrawHandlerDesc_Call(DrawHandlerDesc *pdesc, ICanvas *canv, int x, int y);