Ein Blick in die Doku hätte Dir vielleicht weiter geholfen:
Zitat:
Description
Is a control that can be used to graphically display the progress of a process.
TGauge is a lightweight graphic control (see TGraphicControl). It can be used to display in different modes the progress of an action (see TGauge.Kind).
TGauge (kind=gkNeedle)The most representative properties of the gauge are:
The minimum progress value (MinValue).
The maximum progress value (MaxValue).
The current progress value (Progress).
The progress percentage value can be displayed as text in the middle of the gauge (see the property ShowText).
Wenn ich es nicht übersehen habe, dann fehlt da die Initialisierung der Gauge.
Welche Werte erkennst Du denn im Debugger?
Gruß
K-H