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发信人: zzt (少年仲永), 信区: Program
标 题: DELPHI TIPS(14)
发信站: BBS 荔园晨风站 (Fri Apr 16 18:29:04 1999), 转信
ZDTips brings you another Delphi Tip
http://www.zdtips.com -- Your #1 source for software tips and techniques
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This week's Delphi Tip
Making parts of a form visible
Occasionally, you need some part of a form to be visible only from time to
time. To do this you can put the desired part of the form on the separate
Panel and set the Visible property of the panel to false. Don't forget to
change the total size of the form!
For example, if you wanted to put an auxiliary part on Panel1, which is on
the bottom of Form1, and you want it to be shown/hidden when a user
presses Button1, the code would look like this:
void __fastcall TForm1::Button1Click(TObject *Sender)
{
if ( Panel1-> Visible ) {
Panel1-> Visible = false;
Height -= Panel1-> Height;
Button1-> Caption = "Show More Options";
} else {
Panel1-> Visible = true;
Height += Panel1-> Height;
Button1-> Caption = "Hide More Options";
}
}
From--Andrew Ryabtsev, Institute of Physics of National Academy of Science
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