How to use a file to setup a QProgressDialog, Thanks

[HelloDan]

could you show the written file..i wanna see where it is missing..or u can use qDebug to print all lines that u r reading and showing...then show me the output

Thanks!
for example, the inputfile format is :
20040101 C 0 C 0 C 0 ENE 10 -1 11 0 0 -1 11 0 0
20040102 WSW 10 NW 30 NNW 30 NNW 10 -1 7 0 0 -1 6 0 0
20040103 NNW 20 C 0 SSE 20 SE 30 -1 8 0 0 -1 0 0 0
20040104 C 0 NE 10 S 20 SSW 10 -1 7 6 0 -1 0 0 0
20040105 E 10 C 0 S 20 C 0 -1 9 0 0 -1 0 0 0
20040106 E 10 NNW 20 SW 10 NNW 10 -1 10 6 0 -1 10 0 0


but the output one is only one line when the input data size is small.:
20040101 C 0 C 0 C 0 ENE 10 -1 11 0 0 -1 11 0 0


How to use a qDebug() in a GUI programming? I can make it in a console window, but fail in a GUI one. Maybe it's to fast, how I can make it pause? like system("pause");

Thanks!