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Annotation of q_a/samples/maskblt/readme.txt, revision 1.1.1.1

1.1       root        1: Sample: MaskBlt Function Demonstration
                      2: 
                      3: Summary:
                      4: 
                      5: The MASKBLT sample is an easy-to-use demonstration of the
                      6: MaskBlt Win32 API function. The program presents a dialog
                      7: box on the top of the window; through this dialog box the
                      8: user can manipulate the parameters to MaskBlt. In the main
                      9: window, the source bitmap is displayed in the center third
                     10: of the window, the monochrome bitmap mask is displayed in
                     11: the right third of the window, and the destination bitmap is
                     12: displayed on the left.
                     13: 
                     14: More Information:
                     15: 
                     16: The destination rectangle may be changed directly in the
                     17: dialog box, or it may be changed by using the direct
                     18: manipulation object in the left third of the window.
                     19: Clicking and dragging the mouse in the upper-left corner
                     20: moves the rectangle; clicking and dragging the mouse in the
                     21: lower-right corner sizes the rectangle. The function
                     22: requires only a starting point (not a rectangle) for the
                     23: source and mask bitmaps. There is one additional direct
                     24: manipulation object for the source and one for the mask.
                     25: These objects may be moved by clicking and dragging with the
                     26: mouse.
                     27: 
                     28: The raster operation for the MaskBlt call may be changed by
                     29: altering the values in the right most entry fields. The
                     30: contents are interpreted to be in hexadecimal. There is a
                     31: combo box directly beneath these entry fields that lists all
                     32: of the standard raster operations. If the user selects a
                     33: standard ROP from this combo box, its contents are copied
                     34: into the ROP entry fields and are then used in the MaskBlt
                     35: call.
                     36: 
                     37: This sample provides clipboard support in the following manner.
                     38: Hitting <ctrl>+<insert> will copy the destination image into the
                     39: clipboard.  Hitting <shift>+<insert> will copy a bitmap from the
                     40: clipboard into the source region.  Hitting <alt>+<insert> will
                     41: do both; the destination image will be copied into the clipboard
                     42: and then down to the source region.

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