GoFiler Legato Script Reference   Legato v 1.5b Application v 5.24b

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Chapter Nine — Dialog Functions (continued)

EditGetUnicode Function

Overview

The EditGetUnicode retrieves the Unicode text from an edit or static text control either in direct and in validation modes.

Syntax/Parameters

Syntax

wstring = EditGetUnicode ( int id, [string name], [int flags], [int size] );

Parameters

id

An int containing the control ID of an edit or static control.

name

An optional string specifying the name of the control. When specified, the function switches to validate mode and will test the content of the retrieved string according to the flags.

flags

An optional int specifying validation parameters for the type of field. If omitted, the value is set to zero.

size

An optional int specifying the maximum size of the field in characters.

Return Value

Returns a wstring containing the text or an empty string on failure or if the control does not contain any text. Use the GetLastError function to retrieve error information. In validation mode, the last error code will contain the control ID which can be returned directly to the dialog validate procedure to set focus on the offending control.

Remarks 

Though the EditGetText function is intended for use with edit controls, it will actually work on most control classes. Because an empty string does not necessarily indicate an error, the GetLastError function should be used to determine if the function failed.

If validation is enabled and validation fails, a standard message box will be displayed describing the error with the name of the field. The caller can pass the error code back from the validation procedure to set focus on the control containing the error.

The validation flags are as follows (bitwise combinations):

	Definition			Bits		Description
	General
		EGT_FLAG_REQUIRED		0x80000000		Field Is Required
		EGT_FLAG_DO_NOT_TRIM		0x40000000		Don’t Trim Spaces
	Field Types
		EGT_FLAG_TYPE_MASK		0x0F000000		Mask for Type
		EGT_FLAG_STRING		0x00000000		General String (no test)
		EGT_FLAG_NUMERIC		0x01000000		Numeric Field
		EGT_FLAG_CURRENCY		0x02000000		Currency Field
		EGT_FLAG_HEX		0x07000000		Hex Field (0x00000000)
	String as File Options
		EGT_FLAG_FILE_MODE_MASK		0x00000FFF		File Modes are Used (mask)
		EGT_FLAG_FILE_MUST_EXIST		0x00000001		Check for existing file
		EGT_FLAG_FILE_CAN_OPEN_READ		0x00000002		Check for file can be opened as read
		EGT_FLAG_FILE_CAN_OPEN_WRITE		0x00000004		Check for file can be opened as write
		EGT_FLAG_FILE_QUERY_OVERWRITE		0x00000008		Query for file overwrite
		EGT_FLAG_FILE_PATH_REQUIRED		0x00000010		Must have a path (must be qualified)
		EGT_FLAG_FILE_REQUIRES_EXTENSION		0x00000020		Requires a filename extension
		EGT_FLAG_FILE_LOCAL_PATH		0x00000040		String cannot be URL, must be local
		EGT_FLAG_FILE_PATH_MUST_EXIST		0x00000080		Specified path must exist
	Numeric Options
		EGT_FLAG_NO_ZERO		0x10000000		Zero not allowed
		EGT_FLAG_UPPER_LIMIT		0x20000000		Upper limit on value (embed or void)
		EGT_FLAG_NEGATIVE		0x40000000		Negative value allowed
		EGT_FLAG_UPPER_LIMIT_MASK		0x00FFFFFF		Upper limit value mask
	String Options
		EGT_FLAG_FILE_MUST_EXIST		0x00000001		Check File for Existing File
		EGT_FLAG_FILE_CAN_OPEN_READ		0x00000002		Check File can Open as Read (tests for exists as well)
		EGT_FLAG_FILE_CAN_OPEN_WRITE		0x00000004		Check File can Open as Write
		EGT_FLAG_FILE_QUERY_OVERWRITE		0x00000008		Query Overwrite

 

For edit controls, the maximum size of the text field will be limited by the physical size of the control unless the ES_AUTOHSCROLL style is set.

Proper security precautions should be employed when storing and using sensitive information such as passwords. This function abides by the Secure Memory Model.

Related Functions

EditGetText — Gets ANSI data from a static or edit control with optional validation.

EditGetUTF — Gets UTF data from a static or edit control with optional validation.

EditSetText — Sets data into an edit or static control with optional formatting parameters.

SecureClear — Zeros a variable with secure wipe.

Platform Support

Go13, Go16, GoFiler Complete, GoFiler Corporate, GoFiler, GoFiler Lite, GoXBRL

Legato IDE, Legato Basic

 

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GoFiler Legato Script Reference — Generated on 10/21/2024

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