Copies an rectangular sub-area of a PixelMap to a new PixelMap that is returned.
If the provided sub-map coordinates are invalid, a null pointer is returned.
It is valid to supply individual coordinates that lie outside of the pixelmap however; doing so will trim the resulting sub-map accordingly.
The call will only fail if the entire input area lies outside the pixel map dimensions.
Take note that you will be the owner of the returned sub-map, which should be subjected to DX11 DELETE PIXELMAP when you are done with it.

Return Dword = DX11 GET PIXELMAP RECT(pixelMap, x, y, width, height)

pixelMap

Dword
The pixelmap to get a sub-rectangle of.

x

Dword
The X coordinate of the rectangle to extract.

y

Dword
The Y coordinate of the rectangle to extract.

width

Dword
The width of the rectangle to extract (relative to the X coordinate).

height

Dword
The height of the rectangle to extract (relative to the Y coordinate).

A new PixelMap containing the copied data from the source map, or 0 if it could not be created.

PIXELMAP Functions Menu
DX11 Function Categories