34 lines
980 B
Plaintext
34 lines
980 B
Plaintext
/*
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This uses LtfPutSExt/LtfPrintF because updates
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to within a tree while a tree is collapsed get
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messed-up if "live"(like using ordinary PrintF/PutS.)
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The insert point is confused by hiding of
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data in collapsed trees. Therefore, the window main
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Ltf is taken off-line by disabling preemption so there
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are no screen updates until all data has been inserted.
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There is a special Ltf function which is also
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available to take an Ltf off-line. See $LK,"LtfSafeInsert","MN:LtfSafeInsert"$.
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For this example, however, I wanted to use LtfPrintF
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and disabled Preemption myself.
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*/
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#include "/LT/Demo/TreeDemoJoin"
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void TreeDemo()
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{
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U8 f=0;
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BoolU4 old_preempt;
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Ltf *l=Fs->cur_ltf;
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GetFFlags(&f,SysText("ST_FILE_UTIL_FLAGS"),"+r");
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old_preempt=Preempt(OFF);
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LtfPutSExt(l,"$$TR-C+AL,\"\"$$\r\n");
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LtfPutSExt(l,"$$ID,+2$$");
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TreeSub(l,FindFiles("/LT/*",f));
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LtfPutSExt(l,"$$ID,-2$$");
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LtfRecalc(l);
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Preempt(old_preempt);
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}
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TreeDemo;
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