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Portable Network Graphic  |  1990-09-25  |  14.9 KB  |  549x727  |  1-bit (2 colors)
   ocr: With System 7.0, the Control Manager has a new way of telling yowr CDEF to calcwlate control regions. Two new messages have been defined, calcCntlRgn and calcThumbRgn, with values of 10 and 11 respectively. With a 32-bit Memory Manager in operation, the Control Manager, which previously would have used calcCRgns, will now use one of the new messages. With a 24-bit Memory Manager operating, calcCRgns will still be used, so you must continue tos support that method. CREATING TALID HANDLES Just as the master pointer structure will change in System 7.0, other Memory Manager structures will be subj ...