CVI에서 컨트롤을 동적으로 생성하기

CVI에서 동적으로 컨트롤을 생성하는 방법이다.

일반적인GUI프로그램에서 사용하고자 하는 컨트롤을 Panel에 미리 배치해놓고 작업을 하게 된다.
하지만 경우에 따라 버튼을 클릭한다거나 했을 때 동적으로 panel에 생성할 필요가 있을 때가 있다.

이 때 LabWindows/CVI에서 사용할 수 있는 함수가 NewCtrl()함수이다.

인자로 panel핸들, 컨트롤의 스타일, 컨트롤의 label, 위치(상, 좌)가 있고, int형의 컨트롤 ID를 반환한다.

NewCtrl

int NewCtrl (int panelHandle, int controlStyle, char controlLabel[], int controlTop, int controlLeft);

Purpose

Creates a new control and returns a control ID that you can use to specify the control in subsequent function calls.
If you call this function to add a timer control to a panel, you must do so in the same thread in which you create or load the panel.

Parameters

Input
Name	Type	Description
panelHandle	integer	Specifier for a particular panel that is currently in memory. You obtain this handle from LoadPanel, NewPanel, or DuplicatePanet.
controlStyle	integer	Select one of the following control styles. Type Style Numeric CTRL_NUMERIC CTRL_NUMERIC_LS Color Numeric CTRL_COLOR_NUMERIC CTRL_COLOR_NUMERIC_LS Numeric Slide CTRL_NUMERIC_THERMOMETER CTRL_NUMERIC_THERMOMETER_LS CTRL_NUMERIC_TANK CTRL_NUMERIC_TANK_LS CTRL_NUMERIC_GAUGE CTRL_NUMERIC_GAUGE_LS CTRL_NUMERIC_METER CTRL_NUMERIC_METER_LS CTRL_NUMERIC_KNOB CTRL_NUMERIC_KNOB_LS CTRL_NUMERIC_DIAL CTRL_NUMERIC_DIAL_LS CTRL_NUMERIC_VSLIDE CTRL_NUMERIC_HSLIDE CTRL_NUMERIC_FLAT_VSLIDE CTRL_NUMERIC_FLAT_HSLIDE CTRL_NUMERIC_LEVEL_VSLIDE CTRL_NUMERIC_LEVEL_VSLIDE_LS CTRL_NUMERIC_LEVEL_HSLIDE CTRL_NUMERIC_LEVEL_HSLIDE_LS CTRL_NUMERIC_POINTER_VSLIDE CTRL_NUMERIC_POINTER_VSLIDE_LS CTRL_NUMERIC_POINTER_HSLIDE CTRL_NUMERIC_POINTER_HSLIDE_LS String CTRL_STRING CTRL_STRING_LS Text Message CTRL_TEXT_MSG Text Box CTRL_TEXT_BOX CTRL_TEXT_BOX_LS Command Button CTRL_SQUARE_COMMAND_BUTTON CTRL_SQUARE_COMMAND_BUTTON_LS CTRL_OBLONG_COMMAND_BUTTON CTRL_ROUND_COMMAND_BUTTON CTRL_ROUNDED_COMMAND_BUTTON Picture Button CTRL_PICTURE_COMMAND_BUTTON CTRL_PICTURE_COMMAND_BUTTON_LS CTRL_PICTURE_TOGGLE_BUTTON CTRL_PICTURE_TOGGLE_BUTTON_LS Toggle Button CTRL_ROUND_BUTTON CTRL_SQUARE_BUTTON CTRL_SQUARE_BUTTON_LS CTRL_ROUND_FLAT_BUTTON CTRL_SQUARE_FLAT_BUTTON CTRL_ROUND_PUSH_BUTTON CTRL_SQUARE_PUSH_BUTTON CTRL_SQUARE_PUSH_BUTTON_LS CTRL_ROUND_PUSH_BUTTON2 CTRL_SQUARE_PUSH_BUTTON2 Text Button CTRL_SQUARE_TEXT_BUTTON CTRL_SQUARE_TEXT_BUTTON_LS CTRL_OBLONG_TEXT_BUTTON CTRL_ROUND_TEXT_BUTTON CTRL_ROUNDED_TEXT_BUTTON Radio Button CTRL_ROUND_RADIO_BUTTON CTRL_SQUARE_RADIO_BUTTON CTRL_CHECK_BOX LED CTRL_ROUND_LIGHT CTRL_SQUARE_LIGHT CTRL_ROUND_LED CTRL_ROUND_LED_LS CTRL_SQUARE_LED CTRL_SQUARE_LED_LS Binary Switch CTRL_HSWITCH CTRL_VSWITCH CTRL_GROOVED_HSWITCH CTRL_GROOVED_VSWITCH CTRL_TOGGLE_HSWITCH CTRL_TOGGLE_HSWITCH_LS CTRL_TOGGLE_VSWITCH CTRL_TOGGLE_VSWITCH_LS Ring CTRL_RING CTRL_RING_LS CTRL_RECESSED_MENU_RING CTRL_RECESSED_MENU_RING_LS CTRL_MENU_RING CTRL_MENU_RING_LS CTRL_POPUP_MENU_RING CTRL_POPUP_MENU_RING_LS Ring Slide CTRL_RING_VSLIDE CTRL_RING_HSLIDE CTRL_RING_FLAT_VSLIDE CTRL_RING_FLAT_HSLIDE CTRL_RING_LEVEL_VSLIDE CTRL_RING_LEVEL_VSLIDE_LS CTRL_RING_LEVEL_HSLIDE CTRL_RING_LEVEL_HSLIDE_LS CTRL_RING_POINTER_VSLIDE CTRL_RING_POINTER_VSLIDE_LS CTRL_RING_POINTER_HSLIDE CTRL_RING_POINTER_HSLIDE_LS CTRL_RING_THERMOMETER CTRL_RING_THERMOMETER_LS CTRL_RING_TANK CTRL_RING_TANK_LS CTRL_RING_GAUGE CTRL_RING_GAUGE_LS CTRL_RING_METER CTRL_RING_METER_LS CTRL_RING_KNOB CTRL_RING_KNOB_LS CTRL_RING_DIAL CTRL_RING_DIAL_LS Picture Ring CTRL_PICTURE_RING CTRL_PICTURE_RING_LS List Box CTRL_LIST CTRL_LIST_LS Decoration CTRL_RAISED_BOX CTRL_RAISED_BOX_LS CTRL_RECESSED_BOX CTRL_RECESSED_BOX_LS CTRL_FLAT_BOX CTRL_RAISED_CIRCLE CTRL_RECESSED_CIRCLE CTRL_FLAT_CIRCLE CTRL_RAISED_FRAME CTRL_RECESSED_FRAME CTRL_RECESSED_NARROW_FRAME CTRL_FLAT_FRAME CTRL_RAISED_ROUND_FRAME CTRL_RECESSED_ROUND_FRAME CTRL_FLAT_ROUND_FRAME CTRL_RAISED_ROUNDED_BOX CTRL_RECESSED_ROUNDED_BOX CTRL_FLAT_ROUNDED_BOX CTRL_SMOOTH_VERTICAL_BOX_LS CTRL_SMOOTH_HORIZONTAL_BOX_LS Graph CTRL_GRAPH CTRL_GRAPH_LS Digital Graph CTRL_DIGITAL_GRAPH CTRL_DIGITAL_GRAPH_LS Strip Chart CTRL_STRIP_CHART CTRL_STRIP_CHART_LS Picture CTRL_PICTURE CTRL_PICTURE_LS Timer CTRL_TIMER Canvas CTRL_CANVAS Table CTRL_TABLE CTRL_TABLE_LS ActiveX CTRL_ACTIVEX Tree CTRL_TREE CTRL_TREE_LS Splitter CTRL_HORIZONTAL_SPLITTER CTRL_HORIZONTAL_SPLITTER_LS CTRL_VERTICAL_SPLITTER CTRL_VERTICAL_SPLITTER_LS Tab CTRL_TABS
controlLabel	string	Label of the new control. Pass "" or 0 for no label. Note: This parameter is ignored for splitters, tabs, and decorations.
controlTop	integer	Vertical coordinate at which to place the upper left corner of the control, not including labels. The coordinate must be an integer value from –32,768 to 32,767. The origin (0,0) is at the upper-left corner of the panel, directly below the title bar, before the panel is scrolled.
controlLeft	integer	Horizontal coordinate at which to place the upper left corner of the control, not including labels. The coordinate must be an integer value from –32,768 to 32,767. The origin (0,0) is at the upper-left corner of the panel, directly below the title bar, before the panel is scrolled.

Return Value

Name	Type	Description
controlID	integer	Returns the ID you can use to specify the control in subsequent function calls. Negative values indicate that an error occurred. Zero is not a valid ID.

참고 : CVI 정보나눔, NI LabWindows/CVI Help