QT Resolution solution : Need suggestion

[soumyadeep_pan]

I have developed a static (Using Drag & Drop Method, QT3.3) application in 1280x1024 resolution, but if I execute the same application in some other resolution, the application's window are not showing properly. I have followed one method (Below is the sample code for my Login dialog's controls), but I need to know, is there any other way to solve this resolution conflict in QT ?

Sample code for Login window -

int iw=0,ih=0;
     float fwx=0.0f,fhx=0.0f;
 
     QDesktopWidget *d = QApplication::desktop();
     iw = d->width();
     ih = d->height();
 
    if(iw !=0 && ih!= 0)
    {
        /* Finding ratio for other resolution, using this ratio value, the controls and windows to be resized accordingly*/
 
	fwx = float(1280 - 2)/float(iw);    
	fhx = float(1024 - 8)/float(ih);
    }
 
    QFont qf("Sans",10);
    qf.setPointSizeFloat(float(10)/in_fWidthx);
 
     LE_UserName->setGeometry(int(float(250)/in_fWidthx),int(float(30)/in_fHeightx),int(float(210)/in_fWidthx),int(float(30)/in_fHeightx));
    LE_Password->setGeometry(int(float(250)/in_fWidthx),int(float(70)/in_fHeightx),int(float(210)/in_fWidthx),int(float(30)/in_fHeightx));
 
    LE_UserName->setFont(qf);
    LE_Password->setFont(qf);

int iw=0,ih=0;
     float fwx=0.0f,fhx=0.0f;
     
     QDesktopWidget *d = QApplication::desktop();
     iw = d->width();
     ih = d->height();
    
    if(iw !=0 && ih!= 0)
    {
        /* Finding ratio for other resolution, using this ratio value, the controls and windows to be resized accordingly*/

	fwx = float(1280 - 2)/float(iw);    
	fhx = float(1024 - 8)/float(ih);
    }

    QFont qf("Sans",10);
    qf.setPointSizeFloat(float(10)/in_fWidthx);

     LE_UserName->setGeometry(int(float(250)/in_fWidthx),int(float(30)/in_fHeightx),int(float(210)/in_fWidthx),int(float(30)/in_fHeightx));
    LE_Password->setGeometry(int(float(250)/in_fWidthx),int(float(70)/in_fHeightx),int(float(210)/in_fWidthx),int(float(30)/in_fHeightx));

    LE_UserName->setFont(qf);
    LE_Password->setFont(qf);

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Thanks in advance ..........