2.1.27.9 GetNBox

1 Description
2 Syntax
3 Parameters
4 Return
5 Examples
6 Remark
7 See Also
8 Header to Include
9 Reference

Description

This function opens a dialog from a tree constructed using a set of macros.

Syntax

int GetNBox(TreeNode& tr, PEVENT_GETN pfnEventEx, LPCSTR lpcszTitle = NULL, LPCSTR lpcszDescription = NULL, HWND hWndParent = NULL, bool bShowApplyButton = false, PAPPLY_FUNC pfnApply = NULL);

int GetNBox(TreeNode& tr, PEVENT_GETN pfnEvent, GetNBoxDisplayInfo* pInfo, HWND hWndParent = NULL);

Parameters

trNode: [modify] A TreeNode constructed by the GETN_BOX or GETN_TREE macro
pfnEventEx: [input] PEVENT_GETN type function pointer. See PEVENT_GETN for more details, or see function GetNBox_ex3 below for example.
lpcszTitle: [input] Dialog title
lpcszDescription: [input] A line of text above the editable list of parameters
hWndParent: [input] Parent window. If NULL, Origin main window will be used, also the location of the dialog will be reset to where it was brought up the time before.; If hWndParent is specified, the dialog will be open at its default location, so the event handler can move the dialog to a desired location.
bShowApplyButton: [input] true to show Apply button; false will not show.
pfnApply: [input] PAPPLY_FUNC type function pointer. If specified, an Apply button will show and call this handler when click button. Click PAPPLY_FUNC for more details.

tr: [modify] A TreeNode constructed by the GETN_BOX or GETN_TREE macro
pfnEvent: [input] PEVENT_GETN type function pointer. See PEVENT_GETN for more details
pInfo: [input] Set dialog title, customise OK/Cancel buttons etc. See function GetNBox_ex4 below for example.

class GetNBoxDisplayInfo
{
public:
	LPCSTR		lpcszTitle; // dialog title
	LPCSTR		lpcszDescription; // A line of text above the editable list of parameters
	bool		bAlwaysUpdateEditTree; // if true, tr is always be updated after dialog closes, no matter OK or Cancel button is clicked.

	bool		bShowApply; // true to show Apply button; false will not show.
	PAPPLY_FUNC	pfnApply; // PAPPLY_FUNC type function pointer. If specified, an Apply button will show and call this handler when click button. Click [[OriginC%3APAPPLY_FUNC|PAPPLY_FUNC]] for more details.
	LPCSTR		lpcszTextApply; // Apply button's text

	bool		bHideOK; // true to hide OK button
	LPCSTR		lpcszTextOK; // OK button's text

	bool		bHideCancel; // true to hide Cancel button
	LPCSTR		lpcszTextCancel; // Cancel button's text

	bool		bHideContextHelp; // true to hide the context help button on the upper-right corner of the dialog
};

hWndParent: [input] Parent window. If NULL, Origin main window will be used, also the location of the dialog will be reset to where it was brought up the time before.; If hWndParent is specified, the dialog will be open at its default location, so the event handler can move the dialog to a desired location.

Return

1 if user clicks OK, 0 if user clicks Cancel.

Examples

EX1

#include <Origin.h>
#include <GetNbox.h>

// this will bring up the simple form with dialog look
void GetNBox_ex1()
{
    double x0, x1;
    GETN_BOX(trTemp)
    GETN_NUM(xFrom, "X From", 1.3)
    GETN_NUM(xStep, "X Step", -0.5)
    if(GetNBox(trTemp, "Row# as X", "Please specify initial X value and increment"))
    {
        x0 = trTemp.xFrom.dVal;
        x1 = trTemp.xStep.dVal;
        printf("X from %f with increment %f\n", x0, x1);
    }
}

Ex2

#include <GetNbox.h>
 
void GetNBox_ex3()
{
    GETN_TREE(tr)
    GETN_CHECK(check, "Yes or No", 0) 
    GETN_STR(strval, "Please enter a text for label", "")
 
    if( GetNBox(tr, _event_func_ex, "Test Event Function", "Test...") ) 
    {
    	out_str("Done"); // if OK button clicked
    }
}
int _event_func_ex(TreeNode& tr, int nRow, int nEvent, DWORD& dwEnables, LPCSTR lpcszNodeName, WndContainer& getNContainer, string& strAux, string& strErrMsg)
{
    TreeNode trEdited; 
 
    // check nEvent
    switch(nEvent)
    {
    case GETNE_ON_INIT:
    	out_str("Dialog Init event.");
    	break;
 
    case GETNE_ON_OK:
    	out_str("Cliked OK button. ");
    	break; 
 
    case GETNE_ON_VALUE_CHANGE:    
    	trEdited = tree_get_node(tr, nRow);
    	if( trEdited )
    	    	printf("%s control changed.\n", trEdited.tagName);
    	break;
    }
 
    // use lpcszNodeName to get the changed node
    if(lstrcmpi(lpcszNodeName,"strval") == 0)
    {
    	out_str(tr.strval.strVal);
    }

    // shows how to disable OK button
    if( tr.check )
    {
    	// disable OK button if "Yes or No" checkbox is unchecked.
    	bool bEnable = ( 1 == tr.check.nVal ); 
    	O_SET_BIT(dwEnables, GETNGEVT_OK_ENABLE, bEnable);     	
    	if( !bEnable )
    		strErrMsg = "Error! Yes or No checkbox is unchecked";
    }
    return true;
}

Ex3

#include <GetNbox.h>

void GetNBox_ex4()
{
	GetNBoxDisplayInfo displayInfo;
	displayInfo.lpcszTitle = "Test GetNBoxDisplayInfo";
	displayInfo.bAlwaysUpdateEditTree	= true;
	displayInfo.lpcszTextOK		= "Close";
	displayInfo.bHideCancel		= true;
	displayInfo.bHideContextHelp= true;
	
    GETN_TREE(tr)
    GETN_CHECK(check, "Yes or No", 0) 
    GETN_STR(strval, "Please enter a text for label", "")
 
    GetNBox(tr, NULL, &displayInfo);
    out_tree(tr);
}