Microsoft KB Archive/156101

= PRB: Caption Dithered If DisabledForeColor Equals ForeColor =

Article ID: 156101

Article Last Modified on 12/3/2003

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APPLIES TO


 * Microsoft Visual FoxPro 3.0 Standard Edition
 * Microsoft Visual FoxPro 3.0b Standard Edition
 * Microsoft Visual FoxPro 5.0 Standard Edition
 * Microsoft Visual FoxPro 6.0 Professional Edition

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This article was previously published under Q156101



SYMPTOMS
For certain Visual FoxPro controls, if the DisabledForeColor property is set the same as the ForeColor property when the control is disabled, the disabled control's foreground color appears dithered. This behavior applies to command buttons, labels, option buttons, and check boxes. This behavior also affects how their captions appear.



WORKAROUND
Set the DisabledForeColor property to be 1 (one) different from the ForeColor property. For example, place the following code in the Init method for a check box: this.DisabledForeColor = this.ForeColor + 1



STATUS
This behavior is by design.



MORE INFORMATION
This behavior occurs when the two properties are set the same. Because the control is disabled, its caption appears dithered to indicate the control is disabled. In certain cases, you may want the disabled control to appear nearly identical to the enabled control. If so, use the technique in the WORKAROUND section above.

Steps to Reproduce Behavior
  Run the following code from a program (.prg) file: * Start of code example *     PUBLIC oform1 oform1=CREATEOBJECT("form1") oform1.SHOW

DEFINE CLASS form1 AS FORM

HEIGHT = 184 WIDTH = 251 AUTOCENTER = .T.       CAPTION = "DisabledForeColor Test" NAME = "Form1"

ADD OBJECT label1 AS LABEL WITH ; CAPTION = "Label1", ; LEFT = 24, ; TOP = 12, ; AUTOSIZE = .T., ; NAME = "Label1"

ADD OBJECT optiongroup1 AS OPTIONGROUP WITH ; BUTTONCOUNT = 2, ; VALUE = 1, ; LEFT = 24, ; TOP = 48, ; AUTOSIZE = .T., ; NAME = "Optiongroup1", ; option1.CAPTION = "Option1", ; option1.VALUE = 1, ; option1.LEFT = 5, ; option1.TOP = 5, ; option1.AUTOSIZE = .T., ; option2.CAPTION = "Option2", ; option2.VALUE = 0, ; option2.LEFT = 5, ; option2.TOP = 24, ; option2.AUTOSIZE = .T.

ADD OBJECT check1 AS CHECKBOX WITH ; TOP = 12, ; LEFT = 132, ; AUTOSIZE = .T., ; CAPTION = "Check1", ; NAME = "Check1"

ADD OBJECT check2 AS CHECKBOX WITH ; TOP = 132, ; LEFT = 24, ; AUTOSIZE = .T., ; CAPTION = "Disable all", ; NAME = "Check2"

ADD OBJECT check3 AS CHECKBOX WITH ; TOP = 132, ; LEFT = 132, ; AUTOSIZE = .T., ; CAPTION = "Add the 1?", ; NAME = "Check3"

ADD OBJECT command1 AS COMMANDBUTTON WITH ; TOP = 60, ; LEFT = 120, ; HEIGHT = 27, ; WIDTH = 90, ; CAPTION = "Command1", ; NAME = "Command1"

PROCEDURE optiongroup1.option1.REFRESH THIS.DISABLEDFORECOLOR=THIS.FORECOLOR + THISFORM.check3.VALUE ENDPROC

PROCEDURE optiongroup1.option2.REFRESH THIS.DISABLEDFORECOLOR=THIS.FORECOLOR + THISFORM.check3.VALUE ENDPROC

PROCEDURE check1.REFRESH THIS.DISABLEDFORECOLOR=THIS.FORECOLOR + THISFORM.check3.VALUE ENDPROC

PROCEDURE check2.CLICK THISFORM.label1.DISABLEDFORECOLOR = ; THISFORM.label1.FORECOLOR + ; THISFORM.check3.VALUE &&  Added because Label has no refresh THISFORM.REFRESH THISFORM.SETALL('enabled',!THISFORM.check1.ENABLED) THIS.ENABLED=.T.       ENDPROC

PROCEDURE command1.REFRESH THIS.DISABLEDFORECOLOR=THIS.FORECOLOR + THISFORM.check3.VALUE ENDPROC

ENDDEFINE *     * End of code example  Click the "Disable all" check box. The captions of the disabled controls appear dithered. To demonstrate the workaround, clear the "Disable all" check box, click the "Add the 1?" check box, and click the "Disable all" check box. The control captions are not dithered but are still displayed with a 3-D effect.

NOTE: Depending on whether the "Add the 1?" check box is checked, the DisabledForeColor property for each of the controls is set to either its ForeColor (the "Add the 1?" check box is cleared) or its ForeColor + 1 (the "Add the 1?" check box is cleared).

Additional query words: kbdse VFoxWin

Keywords: KB156101

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