Unit 'StdCtrls'	Package
[Overview][Constants][Types][Classes][Procedures and functions][Index]	[#lcl]

TCustomEdit.CanShowEmulatedTextHint

Indicates if the value in TextHint can be displayed in the edit control.

Declaration

Source position: stdctrls.pp line 798

protected function TCustomEdit.CanShowEmulatedTextHint: Boolean; virtual;

Function result

True when the emulated text hint can be displayed.

Description

CanShowEmulatedTextHint is a Boolean function which indicates if the value in TextHint can be emulated for the edit control. The return value is True when the following conditions are met:

A handle has been allocated for the control.
The widgetset class does NOT include the lcTextHint LCL capability flag (the lack of native widgetset support for the feature is why it's being emulated).
ComponentState indicates that the component is not being loaded using LCL streaming, and is not being edited at design-time.
TextHint is not an empty string ('').
Text is an empty string ('').
The control is not Focused.

CanShowEmulatedTextHint is used in the WMKillFocus method, and when the values in Text or TextHint are applied for the control.

Remark:

In the current LCL implementation, TextHint display is emulated for all widgetsets except Win32/Win64 (since ComCtIVersionIE6) and QT5.

TCustomEdit.Text		The text displayed and edited for the control.
TCustomEdit.TextHint		Default hint text shown when the Text property is empty and the control is not focused.
TWinControl.Focused		Checks whether the control has focus.
TComponent.ComponentState

TCustomEdit.CanShowEmulatedTextHint

Declaration

Function result

Description

See also