Invisible form
lazarus / 10-Designer

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LazaruX · 2007-06-20 09:56

Here is a code to make a part of your form invisible.

Add Code: [Select]Windows to your units
add Code: [Select] RGN1, RGN2, rgn3: HRGN; to your variables
Draw a button on your form

Create a OnClick event for that button, then write this inside the
code.
Code: [Select]
   RGN1 := CreateRectRgn( 0, -20,100,100);

   SetWindowRgn( Handle, RGN1, True );
   DeleteObject( RGN1 );
   


voila, now compile the program, you will see an only the upper left
corner of the form. Change the values after CreateRectRgn to move the
hole somewhere els on the form