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31 lines
1.8 KiB
31 lines
1.8 KiB
The ddksynth sample in the DDK is created from the live sources in dmsynth.
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The sample is generated by removing text between the special BEGIN and END
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@@DDKSPLIT tags (such as this paragraph).
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This can get a bit cryptic when one line must be used in the real dmsynth code
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and a different line must appear in the sample ddksynth code. Example from umsynth.cpp:
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// @@BEGIN_DDKSPLIT -- This section will be removed in the DDK sample.
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pCaps->guidPort = CLSID_DirectMusicSynth;
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#if 0 // The following section will only take affect in the DDK sample.
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// @@END_DDKSPLIT
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pCaps->guidPort = CLSID_DDKSynth;
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// @@BEGIN_DDKSPLIT -- This section will be removed in the DDK sample.
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#endif
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// @@END_DDKSPLIT
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In this example, just the line with CLSID_DDKSynth will appear in the ddksynth
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sample. In the real dmsynth code, CLSID_DDKSynth is surrounded by an #if 0 conditional so it
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has no effect. Thus only CLSID_DirectMusicSynth takes effect in the real code.
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The point here is to ship real functioning code for a synthesizer in the DDK, but to replace
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its name and CLSID and also to strip out any Microsoft proprietary or licensed technology. For
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example, we can't ship our reverb capability in the DDK since it is licensed from another company.
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You can build the cab containing this sample by running "genddkcab dmusiccab.ini" from the
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\nt\private\ddk\cabs directory. See http://devkits/ddk for more information about the DDK.
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There are two files that are used only for the DDK sample:
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ddksynth.htm: A descriptive overview that will appear in the DDK sample.
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ddksources: The sources file that will be used in the DDK sample.
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(It would have been too difficult to generate it from the dmsynth sources.inc file.
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Please keep these two files in sync.)
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