29 lines
715 B
C++
29 lines
715 B
C++
#define GRID 5
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U0 DrawMyInputPtr(CDC *dc,I64 x,I64 y)
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{
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dc->pen_width=1;
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dc->flags&=~(DCF_TRANSFORMATION|DCF_SYMMETRY);
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GrRect(dc,x,y,GRID,GRID);
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}
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U0 GridDemo()
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{
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CGridGlbls old_grid;
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U0 (*old_draw_input_ptr)(CDC *dc,I64 x,I64 y); //Can't init this type of var.
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MemCpy(&old_grid,&ip_grid,sizeof(CGridGlbls));
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GridInit;
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ip_grid.snap=TRUE; //You can set other $LK,"stuff",A="MN:CGridGlbls"$.
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ip_grid.x=GRID;
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ip_grid.y=GRID;
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old_draw_input_ptr=gr.fp_draw_input_ptr;
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gr.fp_draw_input_ptr=&DrawMyInputPtr;
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while (!ip.lb) //Left button to exit.
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GrPlot(,ip.pos.x,ip.pos.y);
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DCFill;
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gr.fp_draw_input_ptr=old_draw_input_ptr;
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MemCpy(&ip_grid,&old_grid,sizeof(CGridGlbls));
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}
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GridDemo;
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