GRAPHIC COPY statement

You can copy a complete bitmap, or a portion of it, to the selected graphic target. The expression hbmpSource??? specifies the handle of the source bitmap or window. The expression id& is reserved for future use, and must always be set to zero. The destination of the copy operation is the window selected by GRAPHIC ATTACH. You must take care that your parameters are valid for the specified bitmap, or the results of the operation are undefined.

The first form of the GRAPHIC COPY statement copies the complete bitmap, positioning it at (0,0), which is the upper left corner of the destination.

The second form of GRAPHIC COPY also copies the complete bitmap, but positions it at the point specified by the parameter (x!, y!).

The third form copies a portion of the bitmap, specified by x1,y1 as the upper left corner and x2,y2 as the lower right corner. It is positioned at the point specified by the parameter (x,y). You must use care that your parameters are valid for the specified bitmaps, or results of the operation are undefined.

If the style parameter is included, it is one of the values in the following table. If not included, a default of %mix_CopySrc is presumed. There are 8 mix modes available to use for mixing drawing colors with the colors which already exist at the at the drawing location The mix mode equates are predefined in PowerBASIC.

%mix_NotMergeSrc	Pixel is the inverse of the MergeSrc color.
%mix_NotCopySrc	Pixel is the inverse of the source color.
%mix_MaskSrcNot	Pixel is a combination of the colors common to both the source and the inverse of the pixel.
%mix_XorSrc	Pixel is a combination of the colors in the source and the pixel, but not in both.
%mix_MaskSrc	Pixel is a combination of the colors common to both the source and the pixel.
%mix_MergeNotSrc	Pixel is a combination of the pixel color and the and the inverse of the source color.
%mix_CopySrc	Pixel is the source color (default).
%mix_MergeSrc	Pixel is a combination of the source color and the pixel color.