Windows control - Radio button
Windows control - Radio The radio button is used to select one of several predefined options. Radio The radio button is not used individually, you can use one radio button for one possible optionsoption. Set A set of radio buttons connected to the same object is understood as a group. The sample below shows two groups - Favourite newspapers and Preferred TV stationstations.
Example
To create radio button
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Warning: In some cases when a group of radio buttons is not defined as described above, an infinite loop in Windows systems may occur during the evaluation of radio buttons and it may cause blocking a block the process D2000 HI process.
Radio button parameters are being configured in the palette Connect object through the following tabs:
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Selection of an object to connect. The object determines which one of the radio button buttons is active and vice versa - the value of the object is being changed when the user select selects any of the radio buttons. The value of the object is equal to the ordinal number of selected radio button buttons within its group. The object must be of integer type.
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When you connect an object of Structured variable you must define whose item will be connected to the radio button. Unique item position in a structured variable is defined by the column name (the parameter Column) and the row number (the parameter Row). For an object of the Value array you must define which array item will be connected to the radio button.
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Specifies the name of the radio button in the form of a reference variable for use in the picture script.
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Assignment of application data (metadata) to a graphic object. If the object contains some metadata, the name of the first record will be displayed in on the button. Multiple records are indicated by ",...".
Event
The list box allows the user to select a an active picture event for the radio button. The list box contains the following active picture events:
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Text to display as a tooltip when the user points the mouse cursor to the radio button in the picture opened in process the D2000 HI process.
Possibility to use the Dictionary (to open press CTRL+L).
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Definition of URL address to open a web page from a picture. The address may also be set also in the picture script by the function %HI_SetOBJURL.
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Definition of the string, that will be displayed beside the radio button. Possibility to use the Dictionary (to open press CTRL+L). The string may also display current (so-called live) values of the object defined by the parameter Connected object but such strings must be defined in a special format - for detailed information see the chapter Format masks.
You can also define a hotkey - underlined character. To create an underline character enter the character & (ampersand) before the required character. The hotkey (ALT+hotkey) performs the same effect as clicking the button.
Note: Using hotkeys does not work in pictures of MDI type (the parameter Window type - the option MDI window) , if this picture is not a subpicture.
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If the parameter is checked, the radio button will be visible after first opening the picture in process the D2000 HI process. The parameter can be controlled from the script using the function %HI_SetVisible.
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If the parameter is checked, the radio button will be disabled after first opening the picture in process the D2000 HI process. The parameter can be controlled from the picture script using the function %HI_SetEnable.
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The parameter allows you to set the radio button as the first control of a group of Windows controls. If the window type of the active picture is set to Dialog (see the topic Picture settings), the user may use the arrow buttons to switch among the radio buttons within one group. You must only define the first control within the group (checking the parameter Group) and the first control out of the group.
For more information on the order of Windows controls see the topic Order of Windows controls.
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Buttons enable displaying (according to the state they are in) 1-4 bitmaps. When using bitmaps, the parameter transparency is not taken into account, the button is drawn just like using the parameter "How button" but the basic (default) position is on the left side and not in the middle.
The window of for assigning bitmaps contains a selection filed of a bitmap (2) for the selected button state.
This field contains the name of a bitmap, the button opening the selection window and the button ending the selection (x). Ending the connection is possible also by entering the non-existing name of the bitmap.
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State selection is for some states (not for prohibited statestates) possible also by clicking into a display of the used bitmap; and the start of the selection by double-clicking into a display of the used bitmap.
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Parameter Bmp is not supported in Thin Client.
For more rules see the page Drawing rules and object properties for the D2000 Thin Client.
Bmp+Text
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