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OlimilO

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  • "OlimilO" is male
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Posts: 277

Date of registration: Jan 18th 2009

Location: Germany

Occupation: software engineer

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1

Wednesday, March 11th 2009, 2:57pm

Resources

Hello Jabaco fans,

there are already a few threads that touch on this subject:

Loadpicture ; create jabaco menu and toolbar ;

I also want to mention maXim's RCC-tool. @maXim Thanks a lot for this nice piece of software :)
from his project I first learned how picture resources can be used in Jabaco.

are you curious ?

read more ...

This post has been edited 3 times, last edit by "OlimilO" (Mar 11th 2009, 5:28pm)

OlimilO

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2

Wednesday, March 11th 2009, 3:32pm

1. basics

let's start:

select the files you want to integrate in your project:

in Jabaco right click on the project-explorer select the menu item "Add File..." or click the button "Add File...". From the drop-down menu select the menu item "Resource". An open-file-dialog appears where you can select your files.

After selecting a file, Jabaco does the following things for you:

* the files immediately will be copied to a new sub direcotry named "Res" below your jabaco-project folder
* for each file an object of type IResource will be created that can be accessed through the static object "Resources" with a dynamically created property with the name of your file

example:

Jabaco Source

 
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Picture1.Picture = Resources.MyPicPng


the name will be simplyfied a little bit, points and other non alphanum-characters will be eliminated, just to create a valid property name.
OlimilO has attached the following images:
  • ProjectExplorer.png
  • PropertyEditor.png

This post has been edited 5 times, last edit by "OlimilO" (Mar 11th 2009, 5:25pm)

OlimilO

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Date of registration: Jan 18th 2009

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3

Wednesday, March 11th 2009, 4:22pm

2. picture resources (pixel based)

I also have bad news: i made bad experiences with pictures of type

*.bmp (windows-bitmaps) and
*.ico (windows-icons)

i did not get them to work. maybe because they are not supported under linux.
But don't bother you

*.png-, *.jpg- and *.gif-files work fine.

imho: the winner of all type of pictures is the png-format

Property Editor:
for a PictureBox control and everywhere where you have a Picture property, you simply can select the image you like in the Property-editor.

Source Code:
in your sourcecode you can use the dynamically created property of the static Resources object (as mentioned above) to assign a picture where it suits for your needs.

Traps:
the CommandButton has a Picture-property. You can select an image for it, and in the Jabaco-IDE you are able to see the picture on the button. But styled buttons in windows are not capable of holding a picture on it. So this does not work under WinXP with styled themes.

maybe als have a short look into the tiny little jabaco project attached

greetings

OlimilO
OlimilO has attached the following file:

This post has been edited 1 times, last edit by "OlimilO" (Mar 11th 2009, 4:59pm)

OlimilO

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4

Sunday, March 15th 2009, 9:24pm

3. Wave audio resources

in VB6 you know the function LoadResData that returns an Array of Bytes and you can use it there like this:

Jabaco Source

 
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Private m_Wave() As Byte
Private Declare Function PlaySound Lib "winmm.dll" Alias "PlaySoundA" ( _
    ByRef lpSound As Byte, ByVal hModule As Long, ByVal dwFlags As Long) As Long
Private Const SND_MEMORY As Long = &H4
Private Sub Form_Load()
'Function LoadResData(id, type)
'  Mitglied von VB.Global
'  Lädt Daten von verschiedenen möglichen Typen aus einer
'  Ressourcendatei (.RES) und gibt ein Byte-Array zurück.
'Type: "WAVE", id: 101
   m_Wave = LoadResData(101, "WAVE")
End Sub
Private Sub Command1_Click()
    PlaySound m_Wave(0), 0, SND_MEMORY
End Sub


in Jabaco afair, there is no LoadResData-function but it simply can be written like this:

Jabaco Source

 
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Public Function LoadResData(resID As IResource) As InputStream
   Set LoadResData = getClass.getResourceAsStream(resID)
End Function


we can combine it with something like this:

Jabaco Source

 
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Public Function GetWavResClip(ResID As IResource) As Clip
   GetWavResClip = AudioSystem.getClip
   GetWavResClip.open(AudioSystem.getAudioInputStream(LoadResData(ResID)))
End Function


we can play it with:

Jabaco Source

 
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Private Sub Command1_Click()
   Dim clip1 As Clip = GetWavResClip(Resources.ChimesWav)
   Dim clip2 As Clip = GetWavResClip(Resources.TadaWav)
   clip1.start
   clip2.start
End Sub


btw: of course the two sounds will be played mixed together in one :D

greetings
OlimilO

This post has been edited 1 times, last edit by "OlimilO" (Mar 15th 2009, 9:32pm)

JasonS

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5

Thursday, October 27th 2011, 11:09pm

LoadResData and GetWavResClip

Hello,

Thank you for these function samples, greatly appriciated! :thumbup: However, I have found that these functions need to empty out its holder variable before loading a resource into them if they are going to be heavily used, in order to avoid heap space/memory leak exceptions:

Jabaco Source

 
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Public Function LoadResData(resID As IResource) As InputStream
   Set LoadResData = Nothing
   Set LoadResData = getClass.getResourceAsStream(resID)
End Function

Public Function GetWavResClip(ResID As IResource) As Clip
   Set GetWavResClip = Nothing
   GetWavResClip = AudioSystem.getClip
   GetWavResClip.open(AudioSystem.getAudioInputStream(LoadResData(ResID)))
End Function


-Jason

This post has been edited 1 times, last edit by "JasonS" (Oct 27th 2011, 11:15pm)

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