Mega Code Archive
Transparent forms
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Title: Transparent forms
Question: Transparent forms.
Answer:
procedure TForm1.Button1Click(Sender: TObject);
Var
frmRegion, tempRegion: HRGN;
i: Integer;
Arect: TRect;
Begin
frmRegion := 0;
For I:= 0 To ControlCount - 1 Do Begin
aRect := Controls[i].BoundsRect;
OffsetRect( aRect, clientorigin.x - left, clientorigin.y - top );
tempRegion := CreateRectRgnIndirect( aRect );
If frmRegion = 0 Then
frmRegion := tempRegion
Else Begin
CombineRgn( frmRegion, frmRegion, tempRegion, RGN_OR );
DeleteObject( tempRegion );
End;
End;
tempregion :=
CreateRectRgn( 0, 0, Width,
GetSystemMetrics( SM_CYCAPTION )+
GetSystemMetrics( SM_CYSIZEFRAME )+
GetSystemMetrics( SM_CYMENU ) * Ord(Menu Nil));
CombineRgn( frmRegion, frmRegion, tempRegion, RGN_OR );
DeleteObject( tempRegion );
SetWindowRgn( handle, frmRegion, true );
end;
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