adspace


How to Use InvalidateRect()to repaint the entire form?

Answer Posted / Mohd Adil Abbas

To repaint the entire form using InvalidateRect(), you can create a rectangle that covers the entire client area of the form and call InvalidateRect() with this rectangle as a parameter.n```delphinprocedure TForm1.Paint;nbeginn Canvas.Brush.Color := clCyan;n Canvas.Rectangle(ClientRect);nend;nprocedure TForm1.FormCreate(Sender: TObject);nbeginn InvalidateRect(Handle, ClientRect, False);nend;n```

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to Retrieve the line number that a memo's cursor is on?

2020


How can one prevent a TForm from being moved or resized?

1784


How to Remove drives listed in a TDriveComboBox ?

1952


How to Print in Delphi without using the TPrinter Unit ?

1917


How to Change the default width/height of the editor?

1925


How to Change the owner of a component at runtime ?

1936


How to Determine the last access time of a given file ?

1847


How to Get the time and date in Universal Time ?

1769


How to Retrieving the program that is associated with a given extension?

1714


How to Save a QuickReport custom preview to text?

3402


How to Create resource files?

1661


How to Flush binary file from disk cache to disk ?

2058