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API Reference

121

LlDefineField

Syntax:

INT LlDefineField (HLLJOB hJob, LPCTSTR lpszName, LPCTSTR lpszCont);

Task:

Defines a list/table field and its contents.

Parameter:

hJob: List & Label job handle

lpszName: Pointer to a string with the name of the field

lpszCont: Pointer to a string with the contents of the field

Return Value:

Error code

Hints:

Please note the general hints in the section "Variables and Fields in List &

Label".

This function defines a text field and can be mixed with the other

LlDefineField...() functions.

LlDefineField(...) is identical to LlDefineFieldExt(..., LL_TEXT, NULL).

List & Label predefines the following fields:

Field

Meaning

LL.CountDataThisPage

Numerical, footer field, defined data

records per page

LL.CountData

Numerical, footer field, defined data

records total

LL.CountPrintedDataThisPage Numerical, footer field,

printed data records per page

LL.CountPrintedData

Numerical, footer field, printed data

records total

LL.FCountDataThisPage

Numerical, footer field, defined data

records per page

LL.FCountData

Numerical, footer field, defined data

records total

LL.FCountPrintedDataThisPage Numerical, footer field, printed data

records per page

LL.FCountPrintedData

Numerical, footer field,

printed data records total

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API Reference

122

The difference between "defined" and "printed" data records is that the user

can apply a record filter to the table so that the "defined" numbers increase

with every data record sent from the program, but not necessarily the "printed"

ones.

Example:

HLLJOB hJob;

hJob = LlJobOpen(0);

LlDefineFieldStart(hJob);

LlDefineField(hJob, "Name", "Smith");

LlDefineField(hJob, "Forename", "George");

LlDefineFieldExt(hJob, "Residence", "Cambridge", LL_TEXT, NULL);

LlDefineFieldExt(hJob, "Postal Code", "*CB5 9NB*", LL_BARCODE_3OF9);

<... etc ...>

LlJobClose(hJob);

See also:

LlDefineFieldStart, LlDefineFieldExt, LlDefineFieldExtHandle

LlDefineFieldExt

Syntax:

INT LlDefineFieldExt (HLLJOB hJob, LPCTSTR lpszName,

LPCTSTR lpszCont, INT lPara, LPVOID lpPara);

Task:

Defines a list/table field and its contents.

Parameter:

hJob: List & Label job handle

lpszName: Pointer to a string with the name of the field

lpszCont: Pointer to a string with the contents of the field

lPara: Field type (LL_TEXT, LL_NUMERIC, ...), if necessary combined with 'or'

(see below).

lpPara: For future extensions, must be NULL.

Return Value:

Error code

Hints:

Please note the general hints in the section "Variables and Fields in List &

Label".

List & Label predefines the fields listed in LlDefineField().

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API Reference

123

lPara 'or'ed with LL_TABLE_FOOTERFIELD supplies field definitions only for the

list footer. The footer is dynamically linked to the list body and is suitable for,

e.g., dynamic calculations as the line for totals or sub-totals.

lPara 'or'ed with LL_TABLE_HEADERFIELD supplies field definitions only for

the list header.

lPara 'or'ed with LL_TABLE_GROUPFIELD supplies field definitions only for the

group.

lPara 'or'ed with LL_TABLE_GROUPFOOTERFIELD supplies field definitions

only for the group footer.

lPara 'or'ed with LL_TABLE_BODYFIELD supplies field definitions only for the

list body.

If none of these flags is used, the fields appear in all field selection dialogs in

the table object.

Example:

HLLJOB hJob;

hJob = LlJobOpen(0);

LlDefineFieldStart(hJob);

LlDefineField(hJob, "Name", "Smith");

LlDefineField(hJob, "Forename", "George");

LlDefineFieldExt(hJob, "Residence", "Cambridge", LL_TEXT, NULL);

LlDefineFieldExt(job, "Number of entries per page",

"1", LL_TABLE_FOOTERFIELD Or LL_TEXT, NULL)

LlDefineFieldExt(hJob, "Postal code",

"*CB5 9NB*", LL_BARCODE_3OF9);

LlDefineFieldExt(hJob, "Photo",

"c:\\photos\\norm.bmp", LL_DRAWING);

<... etc ...>

LlJobClose(hJob);

See also:

LlDefineFieldStart, LlDefineField, LlDefineFieldExtHandle

LlDefineFieldExtHandle

Syntax:

INT LlDefineFieldExtHandle (HLLJOB hJob, LPCTSTR lpszName,

HANDLE hContents, INT lPara, LPVOID lpPara);

Task:

Defines a list field and its (handle) contents.

Parameter:

hJob: List & Label job handle

lpszName: Pointer to a string with the name of the field

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API Reference

124

hContents: Handle to an object of type HMETAFILE, HENHMETAFILE, HICON

or HBITMAP

lPara: LL_DRAWING_HMETA, LL_DRAWING_HEMETA, LL_DRAWING_HICON

or LL_DRAWING_HBITMAP

lpPara: For further extensions, must be NULL.

Return Value:

Error code

Hints:

Please note the general hints in the section "1.3.3. Variables and Fields".

This function defines a text field and can be mixed with the other

LlDefineField...() functions.

List & Label predefines the fields listed in LlDefineField().

The metafile handle must be valid as long as it is needed, that is during the

entire layout definition or until after LlPrintFields() or LlPrint() has finished.

After use the handle can or should be deleted with the normal API function.

Example:

hJob hJob;

HMETAFILE hMeta;

HDC

hMetaDC;

INT

hMetaDC = CreateMetaFile(NULL); // Fieberkurve

selectObject(hMetaDC,GetStockObject(NULL_PEN));

Rectangle(hMetaDC, 0, 0, LL_META_MAXX, LL_METY_MAXY);

for (i = 0; i < 10; ++i)

{

MoveTo(hMetaDC,0,MulDiv(i, LL_META_MAXY, 10));

LineTo(hMetaDC,MulDiv(i, LL_META_MAXX, 100),

MulDiv(i, LL_META_MAXY, 10);

}

MoveTo(hMetaDC, 0, MulDiv(((100*i) & 251) % 100, LL_META_MAXY,100));

for (i = 0; i < 10; ++i)

LineTo(hMetaDC,MulDiv(i, LL_META_MAXX, 10),

MulDiv(((100*i) & 251) % 100, LL_META_MAXY, 100));

hMeta = CloseMetaFile(hMetaDC);

hJob = LlJobOpen(0);

LlDefineFieldStart(hJob);

LlDefineField(hJob, "Name", "Normalverbraucher");

LlDefineField(hJob, "Vorname", "Otto");

LlDefineFieldExt(hJob, "Ort", "Konstanz", LL_TEXT, NULL);

LlDefineFieldExtHandle(hJob, "Erfolgs-Chart", hMeta,

LL_DRAWING_HMETA, NULL);

<... etc ...>

LlJobClose(hJob);

DeleteObject(hMeta);

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API Reference

125

See also:

LlDefineFieldStart, LlDefineField, LlDefineFieldExt

LlDefineFieldStart

Syntax:

INT LlDefineFieldStart (HLLJOB hJob);

Task:

Empties List & Label's internal field buffer in order to delete old field

definitions.

Parameter:

hJob: List & Label job handle

Return Value:

Error code

Hints:

The hints for LlDefineVariableStart() also apply to this function.

If the function LlPrintIsFieldUsed() is used in your application,

LlDefineFieldStart() may not be used after the call to LlPrint[WithBox]Start(),

otherwise the "used" flag will be reset and LlPrintIsFieldUsed() returns always

FALSE.

Important: This function must not be called within the print loop!

Example:

HLLJOB hJob;

hJob = LlJobOpen(0);

LlDefineFieldStart(hJob);

LlDefineField(hJob, "Name", "Smith");

LlDefineField(hJob, "forename", "George");

<... etc ...>

LlJobClose(hJob);

See also:

LlDefineField, LlDefineFieldExt, LlDefineFieldExtHandle

LlDefineLayout

Syntax:

INT LlDefineLayout (HLLJOB hJob, HWND hWnd, LPCTSTR lpszTitle,

UINT nObjType, LPCTSTR lpszObjName);

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API Reference

126

Task:

Calls the interactive Designer that will be displayed as a modal pop-up

window overlapping your application window.

Parameter:

hJob: List & Label job handle

hWnd: Handle of the application window which will be disabled while the

Designer is being displayed.

lpszTitle: Window title

nObjType: Project type

Value

Meaning

LL_PROJECT_LABEL

for labels

LL_PROJECT_CARD

for cards

LL_PROJECT_LIST

for lists

if necessary combined with 'or' with:

Value

Meaning

LL_FIXEDNAME

Deletes the menu items 'new' and 'load'

(preferred: LlDesignerProhibitAction())

LL_NOSAVEAS

Deletes the menu item 'save as' (preferred:

LlDesignerProhibitAction())

LL_NONAMEINTITLE

No file name of the current project in List &

Label's main window title

lpszObjName: File name of the desired object

Return Value:

Error code

Hints:

The window handle is used to deactivate the calling program.

If this is not desired or possible, NULL can also be passed. In this case the

calling program is responsible for closing the layout editor, should the user

abort the main program. This is not recommended.

When the List & Label layout Designer is minimized, the calling program is

also automatically minimized; when the Designer is subsequently restored,

List & Label is also restored.

Example:

HLLJOB hJob;

hJob = LlJobOpen(0);

API Reference

127

LlDefineVariableStart(hJob);

LlDefineVariable(hJob, "Name", "Smith");

LlDefineVariable(hJob, "forename", "George");

LlDefineVariable(hJob, "PIN", "40|08150|77500",

LL_BARCODE_EAN13, NULL);

LlDefineLayout(hJob, hWndMain, "Test", LL_PROJECT_LABEL,

"test")

LlJobClose(hJob);

See also:

LlDesignerProhibitAction, LlSetOption, LlSetFileExtensions

LlDefineSumVariable

Syntax:

INT LlDefineSumVariable (HLLJOB hJob, LPCTSTR lpszName,

LPCTSTR lpszCont);

Task:

Defines a sum variable's contents.

Parameter:

hJob: List & Label job handle

lpszName: Pointer to a string with the name of the variable

lpszCont: Pointer to a string with the contents of the variable

Return Value:

Error code

Hints:

The field content is interpreted as numerical value.

Use of this function usually conflicts with a user who can edit a layout, as the

sum variable will not have the value he expects.

Example:

HLLJOB hJob;

hJob = LlJobOpen(0);

<... etc ...>

LlDefineSumVariable(hJob, "@Sum01", "14");

<... etc ...>

LlJobClose(hJob);

See also:

LlGetSumVariableContents

API Reference

128

LlDefineVariable

Syntax:

INT LlDefineVariable (HLLJOB hJob, LPCTSTR lpszName, LPCTSTR

lpszCont);

Task:

Defines a variable of the type LL_TEXT and its contents.

Parameter:

hJob: List & Label job handle

lpszName: Pointer to a string with the name of the variable

lpszCont: Pointer to a string with the contents of the variable

Return Value:

Error code

Hints:

Please note the general hints in the section "Variables and Fields in List &

Label".

This function defines a text variable and can be mixed with the other

LlDefineVariable...() functions.

LlDefineVariable(...) is identical to LlDefineVariableExt(..., LL_TEXT, NULL).

List & Label predefines the following variables:

Field

Meaning

LL.CountDataThisPage

Numerical, footer field, defined data

records per page

LL.CountData

Numerical, footer field, defined data

records total

LL.CountPrintedDataThisPage Numerical, footer field, printed data

records per page

LL.CountPrintedData

Numerical, footer field, printed data

records total

LL.SortStrategy

String, sort expression

LL.FilterExpression

String, filter expression

The difference between "defined" and "printed" data records is that the user

can apply a filter condition to the data records so that with every data record

sent from the program the "defined" numbers increase, but not necessarily the

"printed" ones (the latter values are only increased if the data record has been

printed, that is, matches the filter condition).

API Reference

129

Example:

HLLJOB hJob;

hJob = LlJobOpen(0);

LlDefineVariableStart(hJob);

LlDefineVariable(hJob, "Name", "Smith");

LlDefineVariable(hJob, "forename", "George");

LlDefineVariableExt(hJob, "residence", "Cambridge, LL_TEXT, NULL);

LlDefineVariableExt(hJob, "Postal Code", "*CB1*",

LL_BARCODE_3OF9, NULL);

<... etc ...>

LlJobClose(hJob);

See also:

LlDefineVariableStart, LlDefineVariableExt, LlDefineVariableExtHandle, LlGet-

VariableContents, LlGetVariableType

LlDefineVariableExt

Syntax:

INT LlDefineVariableExt (HLLJOB hJob, LPCTSTR lpszName,

LPCTSTR lpszCont, INT lPara, LPVOID lpPara);

Task:

Defines a variable and its contents.

Parameter:

hJob: List & Label job handle

lpszName: Pointer to a string with the name of the variable

lpszCont: Pointer to a string with the contents of the variable

lPara: Variable type (LL_TEXT, LL_NUMERIC, ...)

lpPara: For future extensions, must be NULL.

Return Value:

Error code

Hints:

Please note the general hints in the section "Variables and Fields in List &

Label".

This function can be mixed with the other LlDefineVariable...()-functions.

The variables predefined by List & Label are listed within the description of

LlDefineVariable().

Example:

hJob = LlJobOpen(0);

LlDefineVariableStart(hJob);

API Reference

130

LlDefineVariableExt(hJob, "City", "Washington", LL_TEXT, NULL);

LlDefineVariableExt(hJob, "ZIP Code", "*90206*",

LL_BARCODE_3OF9, NULL);

LlDefineVariableExt(hJob, "Photo", "i.bmp", LL_DRAWING, NULL);

LlJobClose(hJob);

See also:

LlDefineVariableStart, LlDefineVariable, LlDefineVariableExtHandle, LlGet-

VariableContents, LlGetVariableType

LlDefineVariableExtHandle

Syntax:

INT LlDefineVariableExtHandle (HLLJOB hJob, LPCTSTR lpszName,

HANDLE hContents, INT lPara, LPVOID lpPara);

Task:

Defines a variable and its contents.

Parameter:

hJob: List & Label job handle

lpszName: Pointer to a string with the name of the variable

hContents: Handle to an object of type:HMETAFILE, HENHMETAFILE,HICON

or HBITMAP

lPara: LL_DRAWING_HMETA, LL_DRAWING_HEMETA, LL_DRAWING_HICON

or LL_DRAWING_HBITMAP

lpPara: For future extensions, must be NULL.

Return Value:

Error code

Hints:

Please note the general hints in the section "Variables and Fields in List &

Label".

This function can be mixed with the other LlDefineVariable...()-functions.

The handle must be valid as long as it is needed, that is during the entire

layout definition or until after LlPrintFields() or LlPrint() return.

After use the handle can or should be deleted with the normal API function.

Example:

HLLJOB hJob;

HMETAFILE hMeta;

HDC

hMetaDC;

INT

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