PV Get picture property

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4D View v16


PV Get picture property ( area ; picNum ; property ) -> Function result

Parameter	Type	Description
area	Longint	4D View area
picNum	Longint	Picture number
property	Longint	Property number
Function result	Longint	Property value

Description

The PV Get picture property command returns the value of property for the picture of area set by picNum.

The PV Picture properties constants are used to define the properties:

Constant	Type	Value
pv picture background	Longint	8
pv picture column	Longint	0
pv picture data height	Longint	5
pv picture data width	Longint	4
pv picture display height	Longint	7
pv picture display width	Longint	6
pv picture fixed size	Longint	10
pv picture hor offset	Longint	2
pv picture locked	Longint	11
pv picture mapping mode	Longint	9
pv picture row	Longint	1
pv picture vert offset	Longint	3

You can also use the PV Picture mapping mode theme to compare the returned value, once you pass the pv picture mapping mode value in the property parameter:

Constant	Type	Value
pv mapping replicated	Longint	3
pv mapping scaled centered prop	Longint	6
pv mapping scaled to fit	Longint	5
pv mapping scaled to fit prop	Longint	4
pv mapping trunc non-centered	Longint	1
pv mapping truncated centered	Longint	2

Example

This method displays information relating to picture number 1.

 C_LONGINT($Index) `Loop index for properties arrays

 C_LONGINT($Value) `Value corresponding to the option

 ARRAY INTEGER($PropertiesCodes;12) `Properties codes

 ARRAY TEXT($PropertiesLabels;12) `Properties labels

 

  `Initialize properties arrays

 $PropertiesCodes{1}:=pv picture column

 $PropertiesLabels{1}:="Reference column"

 $PropertiesCodes{2}:=pv picture row

 $PropertiesLabels{2}:="Reference row"

 $PropertiesCodes{3}:=pv picture hor offset

 $PropertiesLabels{3}:="H offset"

 $PropertiesCodes{4}:=pv picture vert offset

 $PropertiesLabels{4}:="V offset"

 $PropertiesCodes{5}:=pv picture data width

 $PropertiesLabels{5}:="Real width"

 $PropertiesCodes{6}:=pv picture data height

 $PropertiesLabels{6}:="Real height"

 $PropertiesCodes{7}:=pv picture display width

 $PropertiesLabels{7}:="Display width"

 $PropertiesCodes{8}:=pv picture display height

 $PropertiesLabels{8}:="Display height"

 $PropertiesCodes{9}:=pv picture background

 $PropertiesLabels{9}:="Background"

 $PropertiesCodes{10}:=pv picture mapping mode

 $PropertiesLabels{10}:="Mapping"

 $PropertiesCodes{11}:=pv picture fixed size

 $PropertiesLabels{11}:="Fixed size"

 $PropertiesCodes{12}:=pv picture locked

 $PropertiesLabels{12}:="Locked"

 

 $PictureInfo:="Picture number 1 information:"+Character(Carriage return)

 For($Index;1;12) `Review the different properties

    $Value:=PV Get picture property(Area;1;$PropertiesCodes{$Index}) `Read property

    $PictureInfo:=$PictureInfo+$PropertiesLabels{$Index}+" : "+String($Value)+". " `Update info

 End for

 

 ALERT($PictureInfo) `Display info