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- Program DVTest;
- uses crt, desqview;
- var c : char;
- begin
- IF Dv_Loaded THEN BEGIN
- ClrScr;
- Writeln('Detected DESQview version ',Hi(Dv_Version)+Lo(Dv_Version)/100:4:2);
- Writeln;
- Writeln('Beginning DESQview test.');
- Writeln;
- Writeln('First we will test the DV_Pause function. This function gives');
- Writeln('up time slices when waiting for input.');
- Writeln;
- Writeln('We are now looping and waiting for keyboard input WITHOUT giving');
- Writeln('up time slices. Open another window now and run SI and take note');
- Writeln('of the SI rating.');
- Writeln('PRESS ANY KEY WHEN READY');
- REPEAT UNTIL KEYPRESSED;
- c:=readkey;
- ClrScr;
- Writeln('Good, now this time we will give up time slices while waiting for');
- Writeln('keyboard input. Open a window again and record the SI rating.');
- Writeln('It should be higher.');
- Writeln('PRESS ANY KEY WHEN READY');
- REPEAT
- Dv_Pause;
- UNTIL KeyPressed;
- c:=readkey;
- ClrScr;
- Writeln('Ok, now we will test the Dv_Begin_Critical .. Dv_End_Critical procs.');
- Writeln('Dv_Begin_Critical suspends all other tasks and they stay suspended');
- Writeln('until we do a Dv_End_Critical. Open another window and start a task');
- Writeln('that does something. Type a large text file for example. Then, while');
- Writeln('that task is executing, switch back to this window and hit a key.');
- Writeln('The other task should freeze for five seconds and then resume.');
- Writeln('PRESS ANY KEY WHEN READY');
- repeat until keypressed;
- c:=readkey;
- Dv_Begin_Critical;
- Delay(5000);
- DV_End_Critical;
- Writeln('The other task should continue now.');
- Writeln;
- Writeln('End of DESQview unit test.');
- END ELSE Writeln('No DESQview!');
- end.