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Limitations of WINDEV, WEBDEV and WINDEV Mobile
The limitations presented in this document affect: - the project.
- windows.
- controls.
- menus (drop-down or context menu).
- events.
- image formats.
- analyses, data file descriptions, items.
- physical HFSQL data files.
- physical xBase data files.
- WINDEV libraries (WDL).
- WINDEV executables.
- the setup program.
| | | Limitations of the project |
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Windows per project: Maximum number | Unlimited | Project languages: Maximum number | 20 | Procedures per project: Maximum number | 5,000 procedures for each project element (window, report, set of procedures, ...) | Classes per project: Maximum number | 8,000 classes | Variables (global or local) in a project: Maximum number | 65,500 variables | Project processes: Maximum number of lines | 65,500 lines | Elements in a component (windows, sets, variables, classes, members, procedures, etc.): Maximum number | 65,500 elements |
| | | Limitations of the windows |
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Maximum dimensions | 32,000 x 32,000 pixels | Maximum number of controls per window | Greater than 5,000. This limit can be less depending on the operating system used. | Logical name of a window: Maximum number of characters | 255 characters | Languages selected for a window: Maximum number | 64 | Windows opened simultaneously at runtime: Maximum number | This limit varies depending on the available memory and to the number of controls in each window. | Variables (global or local) in a window: Maximum number | 65,500 variables | Processing a window: Maximum number of lines | 65,500 lines |
| | | Limitations of the different types of controls |
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control: Maximum dimensions | 32,000 x 32,000 pixels | Logical name of a control: Maximum number of characters | 255 characters | Treatment of control: Maximum number of lines | 65,500 lines | | Edit control: Maximum number of characters | 2 billion (2 GB) characters | | Multiline edit control: Maximum number of lines | 2 billions (2 GB) of lines and 2 billions (2 GB) characters | | Static control: Maximum number of characters | - If the static is entered in the editor: 2 billions (2 GB) characters,
- If the static is assigned programmatically: limit depending on the available memory.
| | Image control: Maximum dimensions | Unlimited | | Image control: Maximum number of images that can be found in an animated image | Width x Height (in pixels) of the reference image | | Check Box or Radio Button control: Maximum number of options | 256 options | | List Box or Combo Box control: Maximum number of elements | 5 millions elements | | Table control populated programmatically: Maximum number of lines | 5 million Rows Change according to the available memory. | | Table control (populated programmatically or based on a data file): Maximum number of columns | 1 million columns | | Table control (populated programmatically or based on a data file): Maximum number of cells | Dozens of millions of cells | | Table control (populated programmatically or based on a data file): Maximum number of characters in a row | 2 billion (2 GB) characters maximum per row (for all the columns) | | Column in a Table control (populated programmatically or based on a data file): Maximum width | 32,000 pixels | | Text column of a Table control (populated programmatically or based on a data file): Maximum number of characters | 2 billion (2 GB) characters | | TreeView control: Maximum number of elements | Pas de limite |
| | | Limitations of the menus |
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Options and sub-options in a menu: Maximum total number | 2 billions (2 GB) of options and sub-options | Levels of options in a menu: Maximum number | 2 billions (2 GB) of option levels | Caption of a menu option: Maximum number of characters | 2 billion (2 GB) characters | Help message associated with the menu option: Maximum number of characters | 2 billion (2 GB) characters | Processes of a menu option: Maximum number of lines | 65,500 lines |
| | | Limitations on events / procedures / classes |
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Maximum number of lines in:- an event linked to an element (project, window, control, etc.)
- a procedure (local or global)
| 65,500 lines | Maximum number of languages selected for the code | 20 | Program line: Maximum number of characters | 1,000 characters | Procedure | Maximum number of parameters | 255 parameters | Procedure | nom: Maximum number of characters | 255 characters | Nested Loop | Maximum number | 140 nested loops | Class | Maximum number per project | 8,000 classes | Class | Maximum number of members | 65,500 members | Class | nom: Maximum number of characters | 255 characters | Variable (global or local) | Maximum number in a project | 65,500 variables | Variable (global or local) | Maximum number in a window | 65,500 variables | Variable (global or local) | Maximum number in a process | 65,500 variables | Variable | nom: Maximum number of characters | 255 characters | Variable | Chain type: Maximum number of characters | Limit depending on the available memory | Variable | Fixed chain type: Maximum number of characters | 65,500 characters | Variable | ASCIIZ string type: Maximum number of characters | 65,500 characters | Variable | Pascal string type: Maximum number of characters | 255 characters | Variable | Array: Maximum number of dimensions | 3 dimensions | Variable | Array: Limit for a dimension | Limit depending on the available memory |
Los siguientes formatos de Image están soportados en Windows: - Mapa de bits (*.BMP)
- Formato de intercambio de gráficos (*.gif)
- Grupo Mixto de Expertos en Fotografía (*.jpg *;.jpeg)
- CD de fotos Kodak (*.pcd)
- Pincel de pintura (*.pcx)
- Formato Adobe Photoshop (*.psd)
- TrueVision TARGA (*.tga)
- Etiquetado en el formato de archivo Image (*.tif ; *.Tiff)
Observación: la opción "tiff de mosaico" del estándar tiff 6.0 no está soportada. En este caso, le aconsejamos que guarde el Image en el estándar Tiff 5.0. - Gráficos de red portátiles (*.png)
- MetaFicheros de Windows (*.emf;*.wmf)
- Iconos (*.ico *;.icw)
Observaciones: - Pantalla HQ (High Quality) disponible.
- Manejo de hojas en formato Transparent BMP (32 bits).
- Cursores (*.cur)
- Formato portátil de Document (*.pdf)
- Gráficos vectoriales escalables (*.svg)
- WINDEV Image s (generado por el editor de Image, *.WDPic).
Remarks: - BMP, ICO, CUR and OS2 images used in windows are automatically handled by wd300obj.dll.
In all other cases, wd300pnt.dll must be installed with the other WINDEV DLLs. - PDFs displayed in Image fields are managed by wd30 0pnt.dll
| | | Limitations of the analyses, file descriptions and items |
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Analysis | Maximum size of ".WDD" file | Unlimited | Analysis | Maximum number of file descriptions | 65,535 files | Analysis | Maximum number of items | 65,535 items | Analysis | Maximum number of links | 65,535 links | Analysis | Maximum number of analysis generations | 231 (over 2 milliards) of generations | File description | Logical name: Maximum number of characters | 255 characters | File description | Maximum number per analysis | 65,535 files | File description | Maximum number of items | 65,535 items | File description | Maximum number of links per file | 65,535 links | File description | Maximum number of keys | 65,353 keys | File description | Maximum size of all the keys | 2 GB | Item | Logical name: Maximum number of characters | 255 characters | Item | Maximum number per analysis | 65,535 items | Item | Maximum number per file | 65,535 items | Item | Maximum number in a composite key | 65,535 items | Item | Maximum size | 65,535 bytes (except 255 bytes for the files in Windows Turbo Pascal in the language format) | Item | Maximum size of a memo item (text or binary) | 4 GB | Item | Maximum size of a binary string | 65,533 bytes | Item | Maximum number of elements in an array of items | 255 elements | Key | Maximum number per file description | 65,353 keys | Key | Maximum size of all the keys found in a file | 2 GB | Key | Maximum size of a key (composite or simple) | 65,535 bytes | Key | Maximum number of items in a composite key | 65,535 items | Record | Maximum size | 2 GB | Record | Minimum size | 16 bytes |
| | | Limitations of the physical data files, index files and memo files in HFSQL format |
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Maximum size of:- Data file (*.FIC)
- Transaction file (*.FIC)
- Log file (*JNL.FIC)
| 1024 TB | Index file (*.NDX): Maximum size | 1024 TB | Memo file (*.MMO): Maximum size | 1024 TB | Files opened simultaneously: Maximum number | Unlimited | Locked items per file: Maximum number | Unlimited | Items per file: Maximum number | Depends on the size of a record (for a 20-byte record: 329 millions of billions of records, for a 4,096-byte record: 2 millions of billions of records) | File password: Maximum number of characters | Unlimited | .REP file: Maximum number of characters for the full name of the physical file | 255 characters | .REP file: Maximum number of characters for the logical name of the file | 255 characters |
| | | Limitations of xBase files |
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Record | Maximum number per data file | Unlimited | Record | Maximum size | - Clipper5 file: 8,192 bytes
- Other: 4,000 bytes
| Record | Maximum number per index file | Unlimited | Record | Maximum number per memo file | Unlimited | Item | Maximum number per file | - dBase 4 file: 255 items
- DBX file: 512 items
- Clipper5 file: 1,023 items
- Other: 128 items
| Item | Maximum size of a text item | - Clipper5 file: 2,048 bytes
- Other: 254 bytes
| Item | Maximum size of a numeric item | - dBase 4 file: 20 bytes
- FoxPro file: 20 bytes
- Other: 19 bytes
| Item | Maximum size of decimal numeric item | - dBase 4 file: 18 bytes
- FoxPro file: 18 bytes
- Other: 15 bytes
| Item | nom: Maximum number of characters | 10 characters | Key | Maximum size | 65,535 bytes | Key | nom: Maximum number of characters | 10 characters | Key expression | Maximum size | 100 bytes | Key expression | Authorized functions | DTOC, DTOS, Left, Right, Upper, Lower, STR, SUBSTR | Index | Maximum number in an MDX file | 47 indexes | Text memo | Maximum number of characters written | 24,576 characters. |
| | | Limitations of the libraries |
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Maximum size of library file (".WDL" file) | Available size on disk (or up to 2 GB) | Maximum number of elements | Unlimited |
| | | Limitations of the executables |
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Maximum size of executable program ( ".EXE" file) | Available size on disk (or up to 2 GB) |
| | | Limitations of the setup program | Supported languages | Maximum number | 20 languages | Components | Maximum number | 500 components | File groups | Maximum number | 500 groups of files | Update | Maximum number of analyses that can be taken into account by a single update | 100 analyses Each update can automatically modify the data files belonging to 100 different analyses. | DLL | Maximum number of DLLs associated with a custom setup program | 500 DLLs | Reminder: The setup program of a WINDEV application can be created by:- the setup program creation wizard: on the "Proyecto" tab, in the "Generación" group, click "Procedimiento de instalación".
- the setup editor (WDInst): on the "Herramientas" tab, in the "Utilidades" group, click "WDInst".
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