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  • Characteristics of dialog box
  • Line break in the dialog box
  • Miscellaneous
  • Emulation
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Stored procedures
Displays a message in a standard dialog box that proposes "OK" and "Cancel" and returns the user's choice.
OK / Cancel dialog
Remarks:
  • This is a blocking dialog box. To continue running the application, the user must validate one of the buttons.
    Versions 25 and later
    WINDEV To avoid blocking the application, use OKCancelAsynchronous.
    New in version 25
    WINDEV To avoid blocking the application, use OKCancelAsynchronous.
    WINDEV To avoid blocking the application, use OKCancelAsynchronous.
  • WINDEV WINDEV allows you to apply the skin template of your project to this dialog box. See Customizing dialog boxes for more details.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
WINDEVUniversal Windows 10 AppJavaUser code (UMC)
// Delete a line with confirmation (yes by default)
IF OKCancel("Delete this record?") THEN
HDelete(CUSTOMER)
END
WINDEVUniversal Windows 10 AppJavaUser code (UMC)
// Choice used to exit the program
IF OKCancel("Do you want to exit from the program?") = Yes THEN
Close()
END
WINDEVUniversal Windows 10 AppJavaUser code (UMC)
// Ask to confirm the deletion of the file whose
// name is found in the FILE_NAME variable, with
// positioning on the "No" button in the OKCancel window
IF OKCancel(No, "Delete the file?") THEN
fDelete(FILE_NAME)
END
Syntax
WINDEVUniversal Windows 10 AppJavaUser code (UMC)

Displaying an OK/Cancel dialog box Hide the details

<Result> = OKCancel([<Selected button>, ] <Text> [, <Line 2> [... [, <Line N>]]])
<Result>: Boolean
Identifies the button selected by the user:
FalseThe "Cancel" button was chosen by the user.
TrueThe "OK" button was chosen by the user.
<Selected button>: Optional boolean
Button selected by default in the dialog box:
No"Cancel" button selected by default.
True
(by default)
"OK" button selected by default.
<Text>: Character string
Text to display.
<Line 2>: Optional character string
Text displayed on the following lines.
<Line N>: Optional character string
Text displayed on the following lines.
Remarks

Characteristics of dialog box

  • The title of the dialog box corresponds to the title of the current window (or page).
  • To modify or define the title of dialog box, use NextTitle.
  • The message is aligned to left.
  • The captions of buttons depend on the runtime language of Windows.
  • The maximum number of characters cannot exceed 4096. If a larger string is passed in parameter, it will be truncated.
  • The icon displayed (exclamation mark) cannot be modified.
WINDEV To customize this dialog box (as well as all system dialog boxes of your application), check "Customize the system windows (Info, YesNo, Confirm, Dialog)" in the "Style" tab of the project description. See Customizing dialog boxes for more details.

Line break in the dialog box

The CR string (Carriage Return) can be used to force a break to the next line. For example:
IF OKCancel("Caution: you are going to delete this record" + CR + ...
"Do you want to continue?") THEN
HDelete(CUSTOMER)
END
is equivalent to:
IF OKCancel("Caution: this record will be deleted", ...
"Do you want to continue?") THEN
HDelete(CUSTOMER)
END
You also have the ability to use the syntax of multiline strings. For example:
OKCancel(
[
Caution: you are going to delete this record.
 
Do you want to continue?
])
WINDEVUniversal Windows 10 AppJavaUser code (UMC)

Miscellaneous

  • The timers (TimerSys) are not stopped during the call to this function.
  • WINDEV Windows events are not stopped when this function is called.
  • WINDEV You can use the code wizard to enter the function in the code editor. Depending on the characteristics entered in the wizard, the function used can be different in the code that is automatically generated.
  • WINDEVJava DelayBeforeClosing limits how long the message is displayed. The dialog box is automatically closed. For question or confirmation dialog boxes, the default button corresponds to the expected answer.
  • The text of the buttons is displayed in the system language.
WINDEV

Emulation

To emulate an OKCancel message, use EmulateOKCancel.
Business / UI classification : UI Code
Component : wd250obj.dll
Minimum version required
  • Version 9
This page is also available for…
Comments
Exemplo OkCancel
Exemplo OkCancel

IF OKCancel("Vamos Gravar") THEN
//Comandos
Info("Comandos")
END

//Blog com Video e exemplo
http://windevdesenvolvimento.blogspot.com.br/2016/07/curso-windev-funcoes-dialogo-2-okcancel.html
https://www.youtube.com/watch?v=ECbkPsdEoIY
De matos AMARILDO
10 Jul. 2016