Invisible form

[LazaruX]

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

Add

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Windows to your units
add

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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.

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   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