Page 1 of 1
Please update LoadImage example "Help Text" code
Posted: Wed Nov 02, 2022 5:20 pm
by HwyStar
The ImageGadget() help text needs to be updated. The help text does not mention using one or all of the Decoders(). Please update it to this:
Code: Select all
UseJPEGImageDecoder()
UseTGAImageDecoder()
UsePNGImageDecoder()
UseTIFFImageDecoder()
UseGIFImageDecoder()
If OpenWindow(0, 0, 0, 245, 105, "ImageGadget", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)
If LoadImage(0, "map.bmp") ; change 2nd parameter to the path/filename of your image
ImageGadget(0, 10, 10, 100, 83, ImageID(0)) ; imagegadget standard
ImageGadget(1, 130, 10, 100, 83, ImageID(0), #PB_Image_Border) ; imagegadget with border
EndIf
Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow
EndIf
I am testing this on Mac but I think the same results happen on Windows.
Re: Please update LoadImage example "Help Text" code
Posted: Wed Nov 02, 2022 10:07 pm
by BarryG
HwyStar wrote: Wed Nov 02, 2022 5:20 pmwithout an applicable decoder the LoadImage fails and never talks about it in the help text!
Yes, it does:
https://www.purebasic.com/documentation ... image.html
The ImageGadget() will thus use whatever valid image format has been loaded with LoadImage().
Re: Please update LoadImage example "Help Text" code
Posted: Wed Nov 02, 2022 10:15 pm
by HwyStar
My bad... But, the command that really needs the help text updated is ImageGadget:
All it has in the example code for ImageGadget is this:
Code: Select all
If OpenWindow(0, 0, 0, 245, 105, "ImageGadget", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)
If LoadImage(0, "map.bmp") ; change 2nd parameter to the path/filename of your image
ImageGadget(0, 10, 10, 100, 83, ImageID(0)) ; imagegadget standard
ImageGadget(1, 130, 10, 100, 83, ImageID(0), #PB_Image_Border) ; imagegadget with border
EndIf
Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow
EndIf
That will not work for jpg or png files. I now understand that LoadImage requires that code, but an image will not display without the decoders.
ImageGadget does not show us that!
Re: Please update LoadImage example "Help Text" code
Posted: Thu Nov 03, 2022 8:05 am
by HeX0R
In fact LoadImage() fails, if you are trying to load an image without the correct decoder, and in your example code ImageGadget() would not even been called.
So why should it be in the help part of ImageGadget(), when the programmer is trying to call it with an uninitialized picture?