Architecture: |
NX32L |
Device support: |
NX-400 |
Firmware version: |
1.00.00 |
This function creates a new button on the provided form.
Buttons triggers button click events, when clicked by the user.
To change the text after it has been created, use guiControlSetText.
Input:
form : SYSHANDLE
A handle to the form that the button is created on.
x : SINT default 1
The horizontal location of the button.
y : SINT default 1
The vertical location of the button.
w : SINT default 1
The width of the button.
h : SINT default 1
The height of the button.
text : STRING
The text for the button to show.
tag : DINT
The tag value to store.
Output:
button : SYSHANDLE
The handle to the new button.
Returns: INT
0 |
- Success. |
-1 |
- Interface is not open (see guiOpen). |
-2 |
- Not enough memory / resources. |
-3 |
- Invalid argument. |
-8 |
- The text contains invalid characters. |
-10 |
- Invalid location or dimension. |
-11 |
- The GUI API is not supported. |
-12 |
- The location is already used. |
Declaration:
FUNCTION guiButtonCreate : INT;
VAR_INPUT
form : SYSHANDLE;
x : SINT := 1;
y : SINT := 1;
w : SINT := 1;
h : SINT := 1;
text : STRING;
tag : DINT;
button : ACCESS SYSHANDLE;
END_VAR;
Example:
INCLUDE rtcu.inc
PROGRAM test;
VAR
rc : INT;
button : SYSHANDLE;
form : SYSHANDLE;
END_VAR;
BEGIN
...
// Create a button with the text "Click Me"
rc := guiButtonCreate(button := button, form:=form, x:=2, y:=3, w:=3, h:=1, text := "Click Me", tag:=40);
...
END;
END_PROGRAM;